Sunroom Addition Cost & Consumer Guide

Written By Kenneth Wilson  |  0 Comments

per sq ft
$180 to $360
$42,000 to $66,000
small to large
$9,000 to $99,000

These numbers may vary significantly as there are tons of factors that goes into adding a sunroom to your home. When building one, you'll be spending for the foundation, insulation, windows & doors, and even the furnishing. And the costs of these factors add up.

A sunroom is a great addition to your home for recreation and relaxation. But, sunroom installation isn’t cheap. So, if you are considering on installing one in your home, you should be aware of the costs involved beforehand.

14 x 14


three–season sunroom

Generally, a three–season sunroom 14 x 14 with vinyl flooring, lighting, windows, and a sliding door costs about $54,000. But, this price can increase or even decrease based on the quality of materials and added features.

However, the expense of building a sunroom depends on various factors, making it impossible to give a ‘one size fits all’ estimate number. The cost of a sunroom varies substantially based on the style and features you desire.

You also need to consider whether you want a three-season sunroom, a glass atrium or a conservatory. To help you get a clearer estimate, this guide will breakdown all of these costs for you. So, in this article, I will discuss sunroom installation costs from different aspects, along with some other information that might be helpful for you.

Average Cost of Sunroom Installation

A sunroom typically costs between $42,000 and $66,000 to construct. But the cost can go as high as $100,000 and also can be as low as $9,000 depending on the size and overall quality of the sunroom.

For building a standard sunroom, the price might be more or less $180 per square foot, whereas a high–end sunroom will cost you about $360. Quality of materials is a notable factor while determining the cost of sunroom installation. Moreover, the sunroom size and type, the design you desire, the material you will use, etc., are also important factors here.

Sunroom Installation Cost According to Area

The cost of installing a sunroom is approximately $180 to $360 per square foot or $270 per square foot on average. So, a 120 square feet sunroom would cost about $43,000 to $87,000 depending on the type, material, decor, and labor costs.

Sunroom price according to size

However, installing an 80 square feet sunroom would not cost more than $30,000. On the other hand, installing a 100 square feet sunroom will cost you around $18,000 to $36,000.

But if you want to install a larger sunroom, for example, a 240 square feet sunroom, expect to pay about $43,200 to $86,400, including labor and material expenses.

Various Costs Related to Sunroom Installation

There are tons of costs related to sunroom installation, such as foundation, insulation, doors, windows, frames, flooring, and whatnot.

The sunroom addition’s material and labor expenses for critical components like foundation, HVAC, windows, roofing, and flooring account for a significant amount of the total cost. So, let’s discuss the different expenses related to sunroom installation to have a better understanding of the overall cost:


A foundation is a must for building a perfect sunroom. The cost of installing a sunroom foundation ranges from $1,800 to $7,000.

There are mainly three types of foundation: a pre-existing patio or deck, a new concrete slab, or a crawl space. You can build your sunroom on any of them, depending on their size, materials, and techniques of construction. Each three of the foundation types has its own set of benefits.

However, there are structural restrictions and financial constraints that homeowners must consider when building the sunroom.

Pre-existing Deck

You can use your home’s deck for building the sunroom. Unfortunately, not all decks can withstand a sunroom.

The weight of the sunroom must be considered, along with any weight that might be added due to snow that falls upon the roof, or wind pressure that is is put on the structure. In some cases, load bearing reinforcement may need to be added to the deck. In other cases, utilizing the existing deck may not even be viable.

Pro tip: Before starting any work of installing a sunroom on your deck, let a professional inspect it thoroughly. Make sure that the deck is sturdy enough to withstand the weight of an additional sunroom to avoid structural collapse accidents.

Concrete Slab

If not building on wooden deck, you would need to build on a concrete foundation. As a general rule of thumb, your concrete slab would need to have footers at least 8 x 8 in the areas where walls are mounting to the foundation.

Costs: You’re looking at $10 to $20 per square foot. if you need a concrete slab poured for your sunroom.

Two-season vs. Three-season vs. Four-season Sunroom

What’s the difference between these terms?

2 seasons sunroom

Simply put, a two-season sunroom is built with minimal insulation (low r-factor) and intended to be comfortable only during ambient periods of fall and winter.

3 seasons sunroom

A three-season sunroom will include and an HVAC element to either provide air conditioning for the summer, or heating for the winter.

4 seasons sunroom

A four-season sunroom will have both heating and cooling making the space comfortable year round, and typically makes the sunroom considered habitable living space.


Insulating your sunroom is a way of keeping the room at a moderate temperature. Depending on the substance used, insulating a sunroom might cost anywhere from $780 to $1,200.

While you are in your sunroom, you would like to be able to see but not feel the outdoors. So, insulation will act as a barrier between the room temperature and the outside air temperature by making sure the outside weather has less impact inside the room.

However, the kind of sunroom you are installing will determine whether or not you need to insulate it. If you are building a solarium or a four-season sunroom, you will want to consider adding insulation.

But you won’t need to insulate a three-season sunroom to function properly. The place you live in and how often you intend to be using your sunroom will determine if you require insulation or not. If you want to use your sunroom all year, consider insulating the room. It is also an excellent way to enhance your sunroom’s energy efficiency.


HVAC sunroom

Unless you live in a beautifully ambient climate like southern California, you’ll probably want some climate control to get more year–round use of the sunroom. However, as the sunroom is not like other conventional rooms of your house, the system does not necessarily have to match the rest of the house.

The cost of adding or upgrading the HVAC system in the sunroom ranges from $1,000 to $6,000. Some cheap options are stretching old ducts, utilizing a window AC unit with a heater, or inserting a ceiling fan.

Extending existing ductwork will cost only $12 to $24 per linear foot, whereas installing a ductless mini-split ac will cost about $200 to $5,400, depending on the quality. However, if you plan to add an HVAC system to your sunroom, don’t forget to use materials with strong insulation properties first to avoid high utility expenses.


Window installation costs range from $3,000 to $25,000, depending on the number of windows, type, manufacturer, and size.

You have lots of options to choose from, such as a sliding window, awning window, casement, skylight, etc. The following are the most popular types:

Casement Windows Sunroom


You can open casement windows from both sides. They are a popular choice because of their single–pane structure, airtight seal, and total opening design.

However, casement windows are quite expensive and cost between $700 and $1700 on average.


Sliding windows are more convenient to use and have fewer components. They also allow builders to create larger windows with a larger view. 

Sliding windows are a little cheaper than casement windows. The average cost to install a sliding window is $700 to $1,500.


The most common type of sunroom window is the double–hung style. The system is made up of two framed panes, one of which slides up and down concerning the other.

It is cheap compared to casement and sliding windows. The average cost to install this type of window is about $600 to $840.


There are many different kinds of framing options too. To improve the beauty and usefulness of your windows, you have a variety of attractive solutions to select from. Aluminum, vinyl, fiberglass, and wood are a few of the most popular frame materials for the sunroom.


Aluminum is excellent for sunrooms because of its unique combination of structural strength and low weight. Sunroom aluminum window frames cost between $240 and $1,500 on average.

Well, aluminum is a poor insulator in comparison to other materials and requires more painting touch–ups than vinyl. But it lasts a long time and is incredibly sturdy.

  • Life expectancy: 15 to 30 years. But the metal quality and coating technique utilized to create the fences, on the other hand, are variables to consider when deciding the lifespan.
  • Durability: Aluminum frames are also extremely durable. Even if uncoated, it won’t get affected by wind or rain and last for a long time.
  • Characteristics: Aluminum frames are low–maintenance and because of their thinness and light weight, the installation process of aluminum frames is also pretty easy and quick.
  • Best Cleaning SolutionYou can easily clean aluminum frames with soapy water to eliminate the buildup of common filth. However, you can also use commercial cleaners made for cleaning aluminum windows.


Vinyl is widely known as the material of choice for a wide range of architectural items due to its lightweight, high efficiency, and long durability. Moreover, vinyl framing won’t require frequent maintenance making it one of the top choices for sunrooms. This framing material can cost you as much as $5,400 to as low as $120. 

  • Life expectancy: 20 to 40 years. But the duration of time depends on the location; for example, if the windows are open to the scorching, burning sun daily, they will not endure as long as windows are put in colder areas with less dramatic temperature fluctuations all year.
  • Durability: Window frames made of vinyl are incredibly durable and require little to no upkeep other than cleaning. 
  • Characteristics: Your vinyl frame’s color won’t fade over time. So, it will look exactly the same for a long time. Besides, vinyl is a very water–resistant material. Vinyl window frames, unlike wood, do not decay or mold.
  • Best Cleaning SolutionThe best way to clean vinyl frames is to use a gentle brush and clean it with warm water and dish soap. Despite using a brush, you can also soak a soft cloth in the cleaning solution and clean the frame with it.


Another framing option is fiberglass, which has an attractive appearance and requires little upkeep. These frames are more robust than vinyl or metal, as well as insulate better. However, they are pretty expensive, costing about $250 to $3,000.

  • Life expectancy: 35 years. The range fluctuates greatly depending on the maintenance. If you maintain the framing properly, it will last up to 50 years.
  • Durability: Fiberglass frames offer good durability like vinyl and aluminum frames too. Even in severe temperatures, fiberglass window frames expand and contract uniformly, so they don’t warp or split.
  • Characteristics: In comparison to wood or poorly insulated vinyl, fiberglass window frames are durable and feature air spaces that may be sealed with insulation, providing them excellent thermal efficiency.
  • Best Cleaning SolutionUsing vinegar, easily recover the sparkle of fiberglass while removing mildew and filth. Vinegar is an acidic solution that dissolves dirt and grime while providing a streak–free gloss.


Nothing compares to the stunning features and charm of real wood in your sunroom. A sunroom’s wood window frames typically range from $240 to $3,200.

Well, they require the most upkeep yet provide the most insulation. Moreover, you can stain and paint woods in a variety of colors and personalize the interior of your windows without causing damage to the material. However, you can also use the combination of some of the materials to make your frame more attractive, durable, and energy–efficient.

  • Life expectancy: 30 years. However, with proper maintenance and care, you can expect it to last for a longer period.
  • Durability: Wood frames are not very durable if you fail to maintain them properly. But high–end wood frames come with coatings that help protect UV radiation and mild discoloration, as well as prevent distorting and cracks caused by temperature fluctuations.
  • Characteristics: With their gorgeous pattern and texture, wood frames are possibly the most appealing of all frames. They also make a concerted effort to keep plant pests at bay. It lasts a long time, however, it is susceptible to rot and humidity.
  • Best Cleaning SolutionYou can use baking soda mixed with water to clean your wood frames. But after cleaning your frame, you have to apply a layer of wood polish to protect the finish and enhance shine.


Most of the sunrooms are constructed with 75% to 90% glass and a strong frame. As a result, it is critical to think about the many varieties of glass available. Picking the right type will ensure your safety and allow the sunroom to receive the most amount of sunlight over the year.

Well, there are many different types of glass to choose from. You have to make your decision based on the climate, security, and the environment of your area. The following are some of the glass types to choose from:

Single Pane

It is the most affordable type of glass for a sunroom. Glass for single pane sunrooms ranges from $4 to $10 per square foot. They are the most simple and cost-effective option but don’t provide as much noise reduction or insulation as more expensive versions.

However, they are easy to install and inexpensive to replace. As an interim solution, single panes are ideal, but I won’t recommend them for long-term use.

Double Pane

People use double-pane glass for added efficiency and insulation. Generally, the cost of double-pane glass is around $12 to $24. They are a cost-effective approach to reduce heat loss while also protecting the sunroom.

During the winter, it will aid to retain heat inside and will reflect sun rays during the summer. So, for year-round use, it would be one of the best options for you.

Triple Pane

The design of this glass is identical to that of a double–pane with one extra layer. Three layers of glass can easily prevent heat from escaping.

Triple pane glasses are also known as thermopane glasses and cost about $18 to $34 per square foot. Although they are very durable, you have to install them carefully as they are pretty heavy.

Low–E Glass

Low–E glass is a term that gets many confused. Low–E is simply a coating that goes over the glass to reduce UV transmission. Any type of window, (single pane, double pane, triple pane) can be Low–E. Typically though, when you hear the term Low–E, it is used in conjunction with single pane windows.


Tempered glass for a sunroom costs between $30 and $36 per square foot on average. It eliminates the possibility of injury and the likelihood of a possible hazard during intense storms. It is also stiffer, which means your overall sunroom will be tougher.

Single Solex

Single Solex glass has been scientific proof to block UV rays and to prevent heat from seeping into a sunroom. So, you will be able to utilize the sunroom all-day tanning with fewer health hazards than sunbathing outdoors. However, they are the most expensive type on our list, costing around $35 to $60 per square foot.



French doors, with their beauty and grace, create a clear boundary between the main house and the sunroom, announcing the special nature of this light and airy place. Besides, they add significant value to your home.

However, they are pretty expensive and require extra space. The cost of installing a French door ranges from $1,200 to $4,800.


Folding doors are ideal for large spacious sunrooms, ranging in price from $1,000 to $1,200. These doors are more popular in hot areas, as they allow residents to enjoy the benefits of the winds.

However, folding doors are hefty and can be tough to shift, despite their ease of use. Another drawback is that, in comparison to sliding doors, there are fewer design alternatives.


Generally, sliding doors are the most expensive type, costing $2,400 to $5,000 on average. If you are planning to install a small sunroom, it can be the best option for you as it doesn’t require enough vacant floor space.

Moreover, sliding doors have wide glass panes, which complement the whole of the sunroom's design.


Roofing your sunroom can cost anywhere between $3,000 and $30,000. However, the price greatly varies depending on the type and shape of the roof you want to install. The cost of adding solid aluminum roofing is about $8.5 to $13.5, whereas glass gable roofing will cost $45 to $90 per square foot.

On the other hand, if you want to install a single–slope glass roof, it will cost a little less, around $40 to $72. Let’s break down the types of roofing available for sunrooms!

Aluminum Roofing

Insulated aluminum roofing is a cost effective roofing option that works for sunrooms. It is made with aluminum on the top and bottom sides and a high density foam core. The aluminum panels interlock allowing for fast and easy installation. Due to their composition, they are relatively weak, so they’re common in the south east where snow weight is not a major.

The down side to aluminum roofing is that they only come in the color ‘white’ and will look noticeably different than the rest of the home.

Truss Roofing

Just like the roof on 99.9% of homes, wooden trusses could be used for your sunroom. In areas where aluminum roofing is not a viable option, truss roofing is the next lowest cost option. With truss roofing, shingles or tiles can be added to match the roof of your home.

Glass Roofing

This is the option for homeowners that want to truly embrace the concept of the outdoors and be able to see the stars at night from the comfort of their climate control.


Flooring is a vital part of any sunroom installation, and it costs about 4,000 dollars for an average-sized sunroom. Some of the most common flooring options for a sunroom are:

vinyl flooring for sunroom


Vinyl plank is one of the most popular choices for sunroom flooring in places where it rains too much. It is waterproof and extremely durable, making it an excellent choice for humid areas. Vinyl flooring can cost around $3 to $5 per square foot, depending on the quality. 

However, even though flexible vinyl plank floors are extremely durable, they might crack or damage under the pressure of heavy things or with prolonged use.
laminate flooring for sunroom


While several companies now claim to offer waterproof laminate, it is rarely a waterproof flooring solution. But it is an excellent choice for sunrooms, particularly in bright shades or with a UV coating that prevents discoloration. The average cost of installing laminate flooring is about $8 to $17.

carpet floor for sunroom


While several companies now claim to offer waterproof laminate, it is rarely a waterproof flooring solution. But it is an excellent choice for sunrooms, particularly in bright shades or with a UV coating that prevents discoloration. The average cost of installing laminate flooring is about $8 to $17.

tile flooring for sunroom


If you are looking for an easy to clean, scuff–resistant, and durable flooring option, tiles are the best choice for you. The cost of installing tiles in your sunroom is about $10 to $17. However, though tiles are durable, they are less likely to tolerate extreme weather conditions.

hardwood flooring for sunroom


Hardwood is available in tons of designs and styles. Hardwood flooring in a sunroom can offer an aesthetic look and a warm, natural vibe. However, they are pretty expensive, costing around $17 to $39.

While choosing the flooring type, keep in mind that your sunroom flooring must withstand seasonal moisture, heat, cold, and sunlight.

Moreover, it has to be scratch–resistant, peel–resistant, and fade–resistant, while also reflecting your personal preferences and artistic vision.


After you are done with building the sunroom, you’ll want to finish it off with some decor and interior design. Painting the walls of your sunroom will not only make it look attractive it will also boost the home value.

Generally, the cost of painting a sunroom ranges from $1,200 to $1,590, depending on the room’s size, paint quality, and price. Wallpaper is another option for your sunroom, with prices starting from $960 to $1,450. But if you want a long–lasting option, go for wall painting.


The cost of furnishing a sunroom varies substantially depending on the amount of furnishings you want to place in your sunroom. However, for most homes, a budget of $1,200 to $3,600 is plenty.

Chairs, sofas, and desks are the most popular types of furniture for a sunroom. You might also include lighting, televisions and sound systems, artwork, ornamental pillows, and bookshelves if you want.

Average Sunroom Conversion Cost

Based on the size and whether it will be a three or four–season sunroom, converting a porch, balcony, or patio into a sunroom can cost anywhere from $4,800 to $84,000.

Instead of installing a new sunroom, many homeowners choose to convert the balcony, deck, patio, or porch into a sunroom. Let’s discuss the average expenses of popular sunroom conversion projects:

Convert from

Average Cost


$6,000 to $24,000


$9,600 to $42,000


$12,000 to $42,000


$12,000 to $42,000

  • Porch: A porch to sunroom conversion costs $6,000 to $24,000, or around $240 to $480 per linear foot.  Because the porch foundation is already in there and you only need to upgrade it to make it into a full room, it is usually the fastest and cheapest of the sunroom conversions.
  • Balcony: If you want to convert your balcony into a sunroom, make sure your contractor adds the required structural strength to the balcony. The average cost of converting a balcony into a sunroom is $9,600 to $42,000. However, the cost can be more or less, depending on the area of your balcony.
  • Deck: It costs around $12,000 to $42,000 to turn a deck into a sunroom. This project’s major focus is to level and upgrade the deck to meet local building requirements. Besides, transforming the former deck space into a proper sunroom will require new flooring, HVAC systems, insulation, doors, and windows.
  • Patio: Because of their great location in the backyard, patios are a fantastic choice for a sunroom. The project is not very different from converting a deck, costing around $12,000 to $42,000. However, if your patio already has a concrete slab, you can save money on foundation expenditures.

Sunroom Cost According to Type

There are numerous types of sunrooms, each with its own set of functions, designs, and aesthetics.

Before starting your sunroom installation project and deciding on the materials, you have to choose the sunroom type you want and plan accordingly. The following are the costs of some of the most popular types of sunrooms:


Glass Atrium

Glass atriums are one of the most cost–effective sunroom solutions because they often only require roof installation over the walls. The average cost of installing a glass atrium sunroom is about $12,000 to $42,000. So, it is a popular option for homeowners searching for reasonable home improvement solutions.

Atriums have a glass ceiling rather than traditional roofing to let the daylight in for a comfortable atmosphere inside. Moreover, they give a pleasant sunny location to bring the outside in without being exposed to the weather for individuals who enjoy gardening inside.



A conservatory, which was created as a greenhouse for gardening, has grown in popularity as a way to add sparkle to the exterior part of your house. There are many conservatory designs to choose from, with prices ranging from $21,500 to $115,000.

The sunroom will expand your home’s living area. Furthermore, you can use it for a range of activities, from playing table tennis on a summer weekend to enjoying hot tea before heading to work.



A solarium is a sunroom with a glass ceiling. So, with a solarium sunroom, you can unwind underneath the sky and enjoy the magnificent beauty of nature. Generally, the cost of a solarium sunroom ranges from $48,000 to $108,000, based on the size or if it is a three– or four–season addition.

Well, there are mainly two types of roofs. One is the straight-eave sunroom, which is a traditional single-slope style with no top, costing about $48,000 to $90,000. It is a cost–effective choice and you can use it in a variety of different designs and styles.

Another one is a curved eave sunroom, in which the rooftop touches the wall in a lovely arc, costing around $54,000 to $108,000. Because of its gorgeous style, this type is more popular among homeowners looking for something unique and stylish.

Three-Season Sunroom

The cost of a three-season sunroom ranges from $15,000 to $60,000. Depending on whether it is a prefabricated porch extension or a customized three–season room, it will cost you around $95 to $275 per square foot.

Generally, a three–season sunroom is suitable for use in the summer, fall, and spring. The room is typically built with aluminum frames, single or double pane glasses, and an entry door. Though a 3–season sunroom resembles a 4–season sunroom, it is a less insulated variant.

Most homeowners choose a three-season sunroom over a four–season one because of its cheap price. However, if you live in a cold region, don’t install a three–season sunroom.

Four-Season Sunroom

Whether it’s freezing outside or blistering hot, you can relax with your family in the four–season room all year round. A 4–season sunroom is more costly than a 3–season sunroom because of the HVAC systems. Installing a 4–season sunroom costs between $30,000 and $150,000, depending on the materials.

As the sunroom is ready for use throughout the year, you won’t have to worry about the weather outside. If you live in a climate that has all four seasons, consider adding a four–season sunroom to your house.

Things to Consider Before Deciding to Install a Sunroof

Before hiring a professional team for installing a sunroof, consider a few things, such as setting a budget, deciding on the type and materials, getting permits, etc. Here are few things to consider before installing a sunroom:

  • Plan your budget. Set a budget for the project long in advance and follow it. The amount of money you’re willing to spend will influence your design choices. Before you start preparing, it’s a good idea to talk to an agent or auditor.
  • Clarify if your sunroom will be seamless. By ‘seamless’ we mean, that all the screws, bolts, and fasteners will be hidden. Ideally you want to be able to see no fasteners. If not specified a contractor may use standard extrusions or non–internal connections that lower the cost and produce a less–sightly result.
  • Decide on the type and materials of your sunroom. The first thing is choosing the type and materials for your sunroom. While deciding the type, you have to keep in mind the climate of your area, as well as the purpose of your use. Besides, as there are tons of options for windows, doors, flooring, and other things, think about the materials and design you want. Compare the price and functionality of all the different types of materials and choose the most appropriate products according to your budget and need.
  • Know the building codes and manage required permits. A building permit, which might cost $480 to $720, is required for the construction of a sunroom. You can get necessary permits from your local zoning board and you can also get information about the applicable construction codes from there. These guidelines will help you decide on the features and look of your sunroom.
  • Get estimates. After you are done with planning, it’s time to find a company that can help you achieve your vision. When getting an estimate, show the contractor your design layout so that any unique characteristics that may affect the total price can be taken into account. Also, inquire about the contractor’s projected completion time. Don’t finalize the deal with any company before checking other companies. Check different companies and compare their price and offers before making any contract.
  • Choose companies that provide warranties. The majority of firms provide long–term warranties on sunrooms, including some that are lifelong warranties. Warranties usually cover any materials or manufacturing flaws. Choose a company that will provide a long-term warranty for their work.

The Process of Sunroom Installation

Once you have decided on a budget and the type of sunroom you want, you have to contact an architect and a contractor for getting your job done. The architect will make a design layout of your sunroom. After that, the professional team you have hired will start the project of sunroom installation.

The following is the step–by–step process of sunroom installation:

step 1

Creating a Stable Foundation

It is vital to build upon a strong foundation for your sunroom, and contractors must take the time necessary to ensure a safe and secure foundation.

If building an existing deck, code compliance should be checked and/or a certification letter from an engineer certifying that the deck is suitable to host the sunroom will be obtained. In this case, the deck may be out of square/level/plumb, basically it has settled from the time it was initially constructed (or it was built poorly).

If starting from scratch (no existing deck), the team will have to excavate the area and then level or slope the area of the place you want to install your sunroom. Form boards will then be set in place, checked for level, and then concrete foundation poured.

However, if the site cannot be graded and leveled, the professional team might have to create a structured foundation with cement or concrete block walls. For creating this type of foundation, you will have to pay more on labor costs and materials.

step 2

Deck Construction

Deck construction is not necessary for a concrete slab foundation. So, if you have chosen a concrete slab foundation, you can skip this step. In other cases, the team must install a deck before starting with forming the sunroom structure. Generally, it takes 4–5 days to complete this step.

step 3

Building the Roof and Frames

At this step, your sunroom starts to take shape. The construction crew attaches the floor to the foundation first, then constructs a link to connect the sunroom to your home’s wall. Following that, your preferred type of frame is put together, allowing you to see a clear contour of your space as it takes its form.

After building the frames, the team will start working on installing the roof. Based on the roof type, they might have to install a beam to support the structure of the roof too.

step 4

Adjusting the Windows

Now, it is time to adjust the windows. The team will trim the glasses with sharp scissors, keeping them slightly larger than the frames. Then, they will insert the windows in the frames and reweld them into place, cutting the corners off using a utility knife.

step 5

Adding Electricity and HVAC

Your sunroom will be safe from humidity and moisture after the roof, frame, and windows are in place, allowing you to add electrical systems and utilities. To avoid any inconveniences, consider hiring a professional electrician to complete this step.

The electrician will do the wiring for placing ceiling fans, LED lighting, etc. However, if you want to install a PTAC system, your electrician will need to wire an extra 220 Volt circuit to your sunroom. Having a PTAC system for heating and cooling has the advantage of requiring only an electrician instead of an HVAC specialist, which makes scheduling easier.

step 6

Installing Doors

Installing doors is a pretty simple process. The professional team might do this step before the previous one if they want. They can put the doors in place in a very short time. Even massive sliding doors and elaborate French doors can be fitted in a matter of hours, completely isolating your sunroom from the outside weather.

step 7

Final Touch-Up

Your sunroom has already come to life. Now, it is time for the final touch-ups. Your contractor will now paint your walls or add wallpapers and do the extra finishing jobs you have made a deal for. That’s it, your sunroom is ready. Now, your contract with the professional team is finished, and you can start to furnish the sunroom the way you want.

Sunroom Addition Examples With Cost

Four-Season Wooden Sunroom

This project from Sunrooms by Brady used to be a traditional wooden deck. In an attempt to utilize this particular area of the home all–year–round, the owners decided to have their deck be transformed into this beautiful wooden 4–season sunroom (as described on their website). We estimate that transforming a deck into a sunroom would cost in the range of $52,000 to $92,000.

Building a four–seasons sunroom from a deck space will require new flooring, insulation, HVAC systems, doors and windows. With these, the cost can easily increase from the given estimated cost (their website described it as a 4–season sun.

What's unique about this project is that the, the main material used to build the structure is wood from the floor to the walls and the window frames. Installing hardwood floors can give your sunroom that elegant, classic look but it can get pricey. Hardwood floor usually costs about $17 to $38 per square foot. So if you are on a budget, you may opt for a more cost–effective but just as elegant–looking option, which is laminate flooring – which costs about $8 to $17 per square foot.

Say, you want to recreate this beautiful wooden sunroom and built your own 200 square feet sunroom addition like this, prepare to spend upwards of $70,000. That cost will include:

Foundation ($1,800 to $7,000)
Insulation ($780 to $1,200)
HVAC ($1,000 to $6,000)
Wooden floor ($17 to $39 per square foot)
Windows ($3,000 to $25,000)
Door ($2,400)
Roof ($40 to $72 per square foot)

We also have to take into consideration the labor cost and the permit required to build this addition to your home. And last but not the least, you have to furnish the room according to your liking. So, prepare to have an additional budget for this.

Simple Florida Room Addition

This project from Lifestyle Remodeling is a 4-season sunroom addition. The project is using an aluminum structural frame along with an insulated composite panel roof. The amount of light transmitting surface area (glass) is very high, estimated at over 90%. The homeowner clearly specified that they wanted to maximize their view and eliminate walls wherever possible.

It also appears that the homeowner used a custom wide door. Standard door size is 36 x 80, but from the picture it looks to be a little wider, possibly at 42″. This makes it easier to move in furniture and appliances an important consideration if a large sliding door entrance to the home is covered by the sunroom.

From the pictures we can't tell what type of type of glass they used, but considering the maximum glass area, I would guess no expense was spared and Low-e glass was used.

Let's talk about the cost. I'm going to estimate the size at 14 x 24 and 9″ tall. In terms of cost we would estimate $15 to $17 per sq. ft. for the composite panel roofing. Considering a 1″ overhang on each side, 375 sq. ft. would be needed for a cost of $5,625 to $6,375. Double pane glass walls would total $7,000 to $9,000. Electrical and HVAC systems for a sunroom of this size would tack on roughly another $6,000. Permit and engineering would be around $1,500. That covers the structural costs.

For a concrete foundation, we would estimate 288 sq. ft. at $10, and then another $8 per sq. ft. for tile flooring. As described this would be a $28,000 to $32,000 project.

Cozy Conservatory Room

Here is another project from Sunrooms by Brady. This also used to be a deck area that was transformed into this cozy conservatory room addition with a fireplace. This conservatory is built to be used year–round. To compensate for the warmth that is being let in by the surround – glass structure of this conservatory, adding a fireplace to give you warmth during the winter is a necessity.

This particular project is built with hardwood flooring and handcrafted curved wood beams that provide the stylistic touches that will impress. This project is hard to estimate in terms of cost because the size is difficult to just. Let's assume that the over all dimensions are 18 x 18. The non rectangular shape will push the cost to the high side.

Triple pane glass was likely used for it's insulative properties as this appears to be in a northern climate, and would cost $45,000 to $50,000. The wood framing to complete this project would be in the range of $35,000 to $45,000. Throw in hardwood flooring, electrical, and HVAC and you have a project around $120,000.

Sunroom Addition FAQs

Do you have to pay additional property taxes for adding a sunroom?

Yes, you technically have to pay property tax on the value of your addition. Depending on where you live, the tax rates and rules will differ. Don’t worry though, the amount of tax is usually pennies, relative to the cost of the project.

How much would it cost for you to add a sunroom?

Your cost will vary depending on the type of sunroom you want, the materials you want to use, and so on. However, it should cost you about $42,000 to $66,000.

Would you require a permit to build a sunroom?

A sunroom is a legitimate addition to your home. That is why you are required to acquire a building permit to add a sunroom to your home.

What color should you choose for painting your sunroom?

You should choose white, mild, or neutral colors for your sunroom since they are bright, airy, and peaceful. These colors will keep your sunroom cooler by reflecting more heat.

Should you invest in a sunroom?

You will get more than half of your investment back on a sunroom, and it will increase the value of your home while also providing natural light. So, you should invest in a sunroom.

How do you maintain your sunroom temperature in winter?

You have to use double or triple–pane windows to ensure insulation. You should also use a heater.

How much time will it take to construct your sunroom?

You will need about a month to construct a sunroom. However, the time can vary a lot depending on the size of your sunroom.

Final Thoughts

So, that’s everything you need to know about sunroom installation. As you can see, a lot of things are to be considered when determining the cost of the installation. So, determine your budget and plan accordingly so you are not with an unexpectedly high bill.

I hope this article was of help to you. Thanks for tuning in! And I wish you the best of luck in installing your new sunroom.

About the Author

I can build it, and I can help you get the patio enclosure you want! I got my start in the Florida patio industry back in the 70s as a young general laborer looking for something to make a few bucks. At the time I never thought it would end up as my career. Over the years I grew beyond the laborer position, becoming a foreman, superintendent, and then into executive management for some of the largest patio contractors, and material vendors. Now into retirement and slightly bored, I offer consulting services to new and existing contractors, and publish this website to help the people who love their patio's and screen enclosures the most - YOU!

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