How Much Do Sunroom Replacement Windows Cost?

sunroom replacement windows cost factors to consider

If you want to add a sunroom to your home or update an existing one, one of the most important factors is the cost of the replacement windows. Sunroom windows are not like regular windows. They are designed to let in as much natural light as possible while deflecting the sun’s heat and glare. Moreover, they must also be durable, energy-efficient, and easy to operate and maintain.

The cost of sunroom windows depends on several factors, such as the size, style, material, glass type, and hiring an expert window installation in St Petersburg. In this blog post, we will break down the average costs of sunroom windows for different types of sunrooms and give you some tips on saving money and getting the best value for your project.


Types of Sunrooms and Window Replacements

sunroom replacement window costs


Sunrooms come in two main categories: three-season and four-season. A three-season sunroom can be used during the spring, summer, and fall when the weather is mild and comfortable. A three-season sunroom may have some insulation and ventilation but is only partially climate-controlled. A four-season sunroom is insulated and heated or cooled so that you can enjoy it all year.

The type of sunroom you choose will affect your desired windows. A three-season sunroom can get away with cheaper and less efficient windows, such as vinyl or aluminum frames with single-pane or double-pane glass. A four-season sunroom requires more expensive and efficient windows, such as wood or fiberglass frames with double-pane or triple-pane glass with low-e coatings and argon gas fillings.


Another Cost Factor to Consider is the Style of the Sunroom Windows 


Sunroom windows can be fixed (non-operable) or operable (openable). Fixed windows are cheaper and easier to install, but they do not provide ventilation or natural airflow. Operable windows can be casement, sliding, awning, or single-hung or double-hung styles. They are more expensive and complex to install, but they allow you to adjust the temperature and humidity of your sunroom.


A type of sunroom window is a solarium window is a glass roof that lets in maximum sunlight and creates a greenhouse effect. Solarium windows are expensive and require unique engineering and installation. You must also clean them regularly, and they may leak or crack.


Average Costs of Sunroom Replacement Windows

cost of replacement windows for sunroom

According to Replacement Windows Reviews, the average cost of sunroom windows ranges from $2,000 to $11,000 for a typical project with ten new or replacement windows and professional installation.

According to Home Guide, sunroom windows cost between $3,500 and $12,000 for 10 new or replacement windows.

The cost of single sunroom replacement windows can vary from $150 to $800, depending on the type, size, material, glass, and window installation.

Cost of 12×12 Sunroom with Quality Windows

Here are some examples of sunroom replacement window costs for three types of 12×12 sunrooms:


  • How much does it cost to build a 12×12 sunroom? A 12-foot by 12-foot three-season sunroom with 10 entry-level vinyl windows with single-pane glass and fixed frames would cost around $1,500 to $3,000 for the windows alone, plus another $1,000 to $2,000 for installation, for $2,500 to $5,000.


  • A 12-foot by 12-foot four-season sunroom with 10 mid-range fiberglass windows with double-pane glass with low-e coatings and casement frames would cost around $3,000 to $4,500 for the windows alone, plus another $2,000 to $3,000 for installation, for a total of $5,000 to $7,500.


  • A 12-foot by 12-foot solarium with 10 high-end wood windows, triple-pane glass with low-e coatings and argon gas fillings, and a solarium roof would cost around $4,500 to $8,000 for the windows alone, plus another $6,000 to $10,000 for installation, for a total of $10,500 to $18,000.


These are just rough estimates based on national averages. The actual price of your sunroom windows will depend on your location, the size and shape of your sunroom, the quality and availability of the materials and labor, and other factors such as permits, warranties, taxes, etc.

Non-insulated windows for a three-season sunroom are typically less expensive than dual-pane insulated windows required for a four-season room or solarium. Additionally, choosing between prefabricated or custom-built sunrooms can affect the overall cost, with custom-built options generally being more expensive.

It’s also important to consider the potential return on investment, as sunrooms can add significant value to a home by providing additional living space and increasing natural light.

Tips on How to Save Money on Sunroom Windows


Sunroom windows are a significant investment that can enhance the value and comfort of your home. However, they can also be very costly if you don’t plan and shop around. Here are some tips on how to save money on sunroom windows:


  • Choose the correct type of sunroom for your needs and budget. A three-season sunroom will cost much less than a four-season sunroom. And a simple rectangular sunroom will cost less than a complex curved or angled sunroom. Think about how often and when you will use your sunroom and what features and amenities you need.


  • Compare different types of windows and materials. Vinyl windows are the cheapest and most popular option for sunrooms, but they may only last for a short time or perform as well as wood or fiberglass windows. Single-pane glass is cheaper than double-pane or triple-pane glass, but it is less energy-efficient and may cause condensation or fogging issues. Fixed windows are more affordable than operable windows, but they limit your ventilation and air quality options. Compare the pros and cons of different types of windows and materials, and choose the ones that suit your needs and budget.


  • Do some of the work yourself. If you are handy and confident, you can save money by doing some work yourself. For example, you can try to measure your sunroom windows yourself and order them online or from a local store. However, be careful not to overestimate your skills and underestimate the job’s complexity. For a detailed estimate, it’s best to consult with a contractor who can provide a quote based on the project’s specific requirements.

How to Buy Sunroom Windows Correctly?

sunroom windows installation

Shop around for the best deals and discounts. Sunroom windows are a competitive market, and you can find many offers and discounts from different manufacturers, retailers, and contractors. Research online and offline and compare prices, quality, reviews, ratings, and warranties of varying sunroom window brands and models.

Look for seasonal sales, promotions, coupons, and rebates that can lower your costs. Negotiate with your contractor for the best price and terms.


Conclusion to Sunroom Window Prices


Sunroom replacement windows are a great way to add natural light, warmth, and beauty to your home. They can also increase the value and appeal of your property. However, they can also be expensive and require careful planning and budgeting.

Sunroom windows are not easy to install and require precise measurements, tools, skills, and safety precautions. If you make a mistake or damage something, you may pay more for repairs or replacements. Always call a professional window installation company if you need clarification or assistance.

With the tips above, you can find the best sunroom windows for your needs and budget, and enjoy your sunroom for years to come.

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