How Much Does a Florida Room Addition Cost? [2025 Data]
A Florida room addition costs an average of $35,000, and most projects fall between $10,000 and $50,000. The total depends on the size, materials, necessary site prep, and more.
The size and quality of materials are the most influential factors.
The ROI for a sunroom installation is between 50% and 70%.
You may need an architect to design a custom home addition.
Florida rooms require permits, which can add to your total cost.
The average Florida room addition costs $35,000. You could pay as little as $5,000 for a simple three-season room with a small footprint, and your total could climb as high as $70,000 for larger Florida rooms with high-end materials, like hardwood floors and triple-pane windows. Expect to pay between $75 and $250 per square foot to install your Florida room.
Florida Room Size
One of the most significant factors when it comes to Florida room addition costs is the size of the sunroom you want. Building a three-season home costs $150 per square foot, on average, so you can use this to estimate your total based on the dimensions you’re looking for.
| Dimensions (Ft.) | Average Cost |
|---|---|
| 8-by-10 | $12,000 |
| 10-by-12 | $18,000 |
| 12-by-16 | $28,800 |
| 12-by-20 | $36,000 |
| 16-by-20 | $48,000 |
| 20-by-20 | $60,000 |
Sunroom Contractor Cost
Labor accounts for 40% to 60% of your total, so you’ll pay a local sunroom contractor an average of between $14,000 and $21,000 to build your Florida room. Labor costs can fluctuate based on how much land preparation you need before the work begins, site accessibility, the type of foundation you choose, and more.
Additional Pros to Consider Hiring
In many cases, a dedicated professional who builds sunrooms can tackle the job from start to finish using in-house pros who specialize in different parts of the job. If you don’t go with a sunroom specialist, you may need to consider the costs of the following professionals.
Electrician cost: $50–$130 per hour
Architect cost: $125–$250 per hour
Structural engineer cost: $70–$250 per hour
Foundation contractor cost: $5–$37 per sq. ft.
House framer cost: $7–$16 per sq. ft.
Roofer cost: $4–$11 per sq. ft.
Gutter professional cost: $4–$40 per linear foot
Landscaper cost: $4–$12 per sq. ft.
Cost by Location
The average 3-season room cost varies by location, mostly because labor costs scale with the local cost of living. You can expect higher prices in more expensive places near major cities or along the coasts. Demand for Florida rooms is also highest in warmer climates, so you could see higher costs in southern states that benefit more from this uninsulated type of sunroom.
| State | Average Cost |
|---|---|
| California | $50,700 |
| Florida | $35,900 |
| Georgia | $32,000 |
| Illinois | $33,500 |
| Michigan | $32,300 |
| New York | $42,200 |
| North Carolina | $34,200 |
| Ohio | $33,200 |
| Pennsylvania | $33,200 |
| Texas | $32,400 |
Additional Cost Factors
Sunroom size and labor costs are the most significant factors to consider to get an accurate estimate, but there are some other things that can influence your total.
Design
The design you choose for your sunroom will affect the price in a few ways. First, a custom sunroom will cost close to twice as much as a prefabricated sunroom. A prefab three-season room costs between $10,000 and $20,000, while a custom sunroom will run you between $10,000 and $50,000 in most cases.
The layout of the sunroom and the design of the roof can also play a role. A square or rectangular Florida room is easier to construct than a circular or hexagonal one, so labor costs will be lower. Simple shed-style roofs are the most affordable roof design, but many homeowners upgrade to a gable roof or hip roof to match the rest of their homes. These designs are more complex and will drive up labor and material costs.
Windows and Doors
The main purpose of a Florida room is to enjoy the sun while you’re still indoors, so let’s not forget about windows and doors. Floor-to-ceiling windows will let the most natural light in, but glass is more expensive per square foot than a solid exterior wall, so larger windows will increase costs.
The type of window you choose can play an important role, too. Functional windows can introduce ventilation, and double- or triple-pane windows can keep outside noise out and make the room more energy-efficient. Your total will depend, in part, on the window styles and glass types you choose.
Exterior doors leading into your Florida room are another important consideration. You can keep costs down by choosing a solid exterior door or splurge on glass French doors for maximum sunlight and an open, airy appearance.
Roofing Materials
Florida rooms let you enjoy the nature around you without being exposed to the elements, and the roof over the room is a big part of that. Many homeowners choose roofing that matches what’s on their main home, but you can use contrasting materials to make the space stand out a bit more.
Roofing for your Florida room will cost an average of $800 for a standard asphalt roof, but the type of roofing material you choose will affect the material costs.
| Material | Avg. Cost (Sq. Ft.) |
|---|---|
| Asphalt shingle | $4 |
| Clay tile | $10 |
| Metal | $12 |
| Slate | $20 |
You may want to consider the cost to install skylights to introduce even more natural sunlight into your new three-season room. Each skylight costs $1,900 to install, on average.
Flooring
Much like with roofing, the floor material you choose will play a role in your total cost. In a standard 12-foot-by-16-foot Florida room, choosing hardwood floors could cost as much as $4,800, while laminate or linoleum could cost as little as $350.
| Flooring Material | Cost (per Sq. Ft.) |
|---|---|
| Tile | $15–$20 |
| Hardwood | $6–$25 |
| Engineered wood | $4.50–$16 |
| Stone | $6–$20 |
| Carpeting | $3.50–$11 |
| Laminate | $3–$13 |
| Vinyl | $2–$14 |
| Linoleum | $3–$12 |
| Polished concrete | $2–$16 |
Electrical
Some Florida rooms don’t have electricity run to them, but many homeowners choose to add lights, ceiling fans, and electrical outlets for greater utility.
Cost per light fixture: $150–$500+
Ceiling fan cost: $150–$350
Cost per outlet: $200–$300
General wiring cost: $6–$8 per linear foot
Permits
Finally, you should consider the cost of permits. A Florida room is considered a permanent improvement to your property that includes structural changes, so even if you don’t make changes to your home’s electrical or plumbing systems, you’ll need permits for the construction. Permits for a Florida room cost an average of $1,500, but they can range from $250 to $2,500 or more, depending on the size of the home addition.
DIY Florida Room Addition vs. Hiring a Pro
Building a custom three-season room is a job that you should always leave to a professional. Not only does it require highly specialized skills and experience to pour foundations, frame the structure, and finish it, but most municipalities will require a licensed professional to pull permits. In many cases, you won’t be able to do the work yourself, even if you feel comfortable with the project.
You could opt to purchase a prefabricated sunroom kit and install it yourself. These are still challenging to install, but some companies make them DIY-friendly, so you have the option of saving money on labor fees. Just keep in mind that the DIY-friendly models are more often screened-in porches or solariums rather than true three-season rooms with standard roofing.
You can purchase these kits for between $3,000 and $10,000, so while you get less for your money, you’ll also spend less than the average of $35,000 you’d pay for a Florida room.
Florida Room Replacement vs. Repair
If you already have a Florida room installed on your home but it has seen better days, you may need to consider a replacement over a repair. On average, a full replacement will cost you $35,000, plus the cost to demolish the old structure, which can add $500 to $2,000 to your total.
Repairing a sunroom can cost anywhere from $6,000 to replace the roof and the windows on a standard-size Florida room to $20,000 for a total overhaul that includes replacing siding, roofing, flooring, windows, doors, and electrical fixtures. In almost all cases, a repair will be more affordable.
However, if you notice structural damage to your existing Florida room, a full replacement that includes foundation repair is a better option for longevity.
How to Save Money When Installing a Florida Room
Florida room addition costs as much as $70,000, so many homeowners will look for ways to save in the process. There are a few things you can do to reduce your upfront costs and make your sunroom dreams a reality on a budget.
Choose more affordable materials: Materials account for between 40% and 60% of your total, so going with more affordable flooring, window, and roofing materials can save you thousands.
Keep things simple: A simple, rectangular design with a shed-style roof is going to be the most affordable option. Prices increase for circular or hexagonal layouts with gable, hip, or gazebo-style roofs.
Think about prefab: Prefabricated Florida rooms will still require professional installation, but they can cut your costs in half. Just keep in mind that you won’t have much of a say in the design or material options.
Consider using financing: There are many options for financing a home addition, like a home equity line of credit (HELOC), a home rehab loan, or a cash-out refinance. Financing will cost more over time due to interest, but you’ll save up front.
DIY what you can: If you’re handy and have some DIY experience, you can DIY the finishes to save on labor costs. Some examples include installing sheetrock, painting, laying down flooring, and connecting electrical fixtures.
Build in the off-season: Sunroom contractors are busiest in the spring and early summer. Waiting until the fall for decreased demand could fetch you a better price.
Does a Three-Season Room Increase Home Value?
Yes, adding a sunroom to your home will boost home value. You can expect an ROI of around 50%, on average. That could go up to 60% or 70% in a hotter, sunnier climate, where the room provides enjoyment for a longer portion of the year.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Want to help us improve our cost data? Send us a recent project quote to costquotes@angi.com. Quotes and personal information will not be shared publicly.
Frequently Asked Questions
A Florida room is a home addition that has finished walls with windows lining the perimeter, while a screened-in porch, also known as an Arizona room, lacks windows and instead has screens to maintain constant ventilation. Florida rooms provide longer enjoyment throughout the year because they’re closed off and will naturally get heated from the sun, while a screened-in porch will just be the same temperature as the ambient air.
A Florida room doesn’t have insulation, nor is the space heated, so in most cases, the room won’t be comfortable enough to use during the winter months. A four-season room, which is like a Florida room that’s insulated, heated, and cooled, is a better option if you’re looking to enjoy your sunroom all year long.
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