20 Best Window Companies in South Windsor, CT (2025 Reviews)
If you’re thinking about getting new windows, our guide to the best window installation companies can help.
We analyzed all the top-rated window companies in South Windsor and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
Although green energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your house’s efficiency can also have a big impact on home energy conservation. During the winter months, the last thing you want is your heat to leak out of your outdated windows.
Installing upgraded, efficient windows on your house can help you save money each month on your electric bills — and you can help the environment as well.
So if you’re building a new home, renovating or changing out old windows in South Windsor, this is the best place to get started.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in South Windsor
The EcoWatch Reviews team examined dozens of companies that serve the South Windsor area to find the top window installation companies by our standards. We assessed the installers based on energy-efficient offerings, price, coverage area, customer service, local experience and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World provides windows expertise in South Windsor. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window business for about 27 years. Hundreds of positive reviews from customers online back the provider's reputation.
It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window World representative when inquiring about services.
How much does Window World cost in South Windsor?Even though pricing information is not available on Window World’s website, it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to ask for a free quote from the company.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen provides the best availability in South Windsor. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for about 27 years. Hundreds of positive reviews from customers online back the provider's reputation.
It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in South Windsor?Even though pricing information is not available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate information is to ask for a free quote from the company.

Aeroseal Windows
Many years of experience
Great industry reputation
Low number of customer complaints
Manufactures products in-house
Custom Designs
No lifetime warranty
Not ideal for residential installations
Aeroseal Windows provides the best window installation for businesses in South Windsor. It's an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has been in the window business for about 23 years. Hundreds of positive reviews from customers online back the provider's reputation.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in South Windsor?Even though pricing information is not available on Aeroseal’s website, it provides high-quality windows at a competitive price point. The best way to get more accurate information is to ask for a free quote from the company.

Window Nation
Award-winning company
Manufactures products in-house
Custom designs
Wide variety of products and services
Installation not covered by warranty
Limited service area
Window Nation provides the best residential windows in South Windsor. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window business for about 16 years. Hundreds of positive reviews from customers online back the provider's reputation.
It gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation is an Energy Star partner with a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company’s windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Window Nation representative when inquiring about services.
How much does Window Nation cost in South Windsor?Even though pricing information is not available on Window Nation’s website, based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. The best way to get more accurate information is to ask for a free quote from the company.
We strive to be unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.
More Window Companies in South Windsor
Renewal by Andersen Window Replacement
Middletown, CTPrice Transparency
Good Customer Service
Free assessment
Services Offered
Glass Doors
Bay Windows
Custom Window Designs
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
Double-Hung
Power Home Remodeling
Trumbull, CTTimely Service
Good Customer Service
Price Transparency
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Window Nation
Wallingford, CTPrice Transparency
Educational Website
Free assessment
Services Offered
Glass Doors
Bay Windows
Energy-Efficient Options
Custom Window Designs
Window Replacement/Installation
Double-Hung
DaBella
Westborough, MATransferable warranties
Timely Service
family_owned
Good Customer Service
Alside® vinyl windows
Services Offered
Vinyl Frames
Double-Hung
Window Replacement/Installation
Glass Doors
Big Dawg Home Improvements
South Windsor, CTGood Customer Service
Timely Service
Free assessment
Price Transparency
Services Offered
Skylights
Window Replacement/Installation
Energy-Efficient Options
Window Repair
Paramount Gallery
West Hartford, CTPrice Transparency
Educational Website
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Custom Window Designs
Energy-Efficient Options
Glass Doors
Budget Blinds of Enfield and Hartford
Somers, CTGood Customer Service
Free assessment
Price Transparency
Educational Website
Services Offered
Custom Window Designs
Window Replacement/Installation
ZN Construction
Canton, CTTimely Service
Educational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Kubala Home Improvement
Ludlow, MAEducational Website
Free assessment
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Calvary Remodeling
Mystic, CTEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Closet & Storage Systems
Auburn, MAEducational Website
Good Customer Service
Free assessment
Price Transparency
Services Offered
Mirrors
Window Replacement/Installation
Glass Showers
Bert Falsetti's Home Improvement LLC
Shelton, CTServices Offered
Energy-Efficient Options
Double-Hung
Window Replacement/Installation
Vinyl Frames
Window Depot USA of Southern CT
Trumbull, CTGood Customer Service
Timely Service
Free assessment
Educational Website
Price Transparency
Services Offered
Window Replacement/Installation
Vinyl Frames
Glass Doors
Bay Windows
Double-Hung
Energy-Efficient Options
Triple Pane Glass
H & J Homes Solutions LLC
Shrewsbury, MAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Couto Construction
Warwick, RIFree assessment
Good Customer Service
Timely Service
Price Transparency
Educational Website
Services Offered
Window Replacement/Installation
Window Repair
Energy-Efficient Options
Nu-Face Home Improvements
Berlin, CTPrice Transparency
Educational Website
Free assessment
Timely Service
Good Customer Service
Services Offered
Glass Showers
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Double-Hung
Advanced Window Systems LLC
Cromwell, CTGood Customer Service
Price Transparency
Educational Website
Free assessment
Services Offered
Bay Windows
Glass Showers
Double-Hung
Glass Doors
Window Replacement/Installation
Bencar Building Systems LLC
Wallingford, CTGood Customer Service
Services Offered
Window Replacement/Installation
CARRIER ROOFING SIDING & WINDOWS
Webster, MAPrice Transparency
Educational Website
Good Customer Service
Services Offered
Window Replacement/Installation
Dresser Hull Lumber & Building Supply Company
Lee, MAGood Customer Service
Educational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in South Windsor, CT using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in South Windsor Saves You Money
By switching to energy-efficient windows, you can enjoy several benefits, including:
- Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
- Save on power bills: According to the Department of Energy, heat gained or lost through windows makes up around 25-30% of household energy use. Upgrading to energy-efficient models can help decrease that amount, therefore saving you about 12% more on your bills.
- Reduce your carbon footprint: In South Windsor, you can cut your indirect greenhouse gas emissions by about 147 pounds per year after you install energy-efficient windows.
- Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes usually have windows that are outdated, leaky or potentially even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
Estimated Cost of Window Replacement in South Windsor
Windows come in varying purposes, styles and shapes, so costs and services will differ remarkably depending on several factors. Below, we go over the typical cost and services that you can get from window installers.
How Much Do New Windows Cost?
Generally, homeowners in South Windsor can expect that most replacement window installations will range from $250 to $1,200, with the most common installations sitting at around $600. This is because the cost of window installations are based on several factors specific to your home, like the size, material and number of windows you need to replace, as well as the location of your property.
With windows, efficiency is the most important factor for many homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — especially during the summer and winter — they can provide many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save South Windsor homeowners $446+ a year after replacing single-pane windows.
How much your window installation costs will also vary based on the kind of window material you choose for the frames. Wood windows are usually the most expensive, though it depends on whether they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
When it comes to window replacements, in general there are two kinds that your installer will offer: full-frame and pocket installations.
A full-frame installation replaces the full window, such as the sill, frame, trim and the window panes. Because this kind of installation requires more time and labor, it will cost more than a pocket installation. A pocket installation involves replacing a window within the old frame. This means instead of taking out the whole window and rebuilding it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.
Your window installation company can recommend the best type for your project. In South Windsor, the decision will mostly depend on the efficiency of your home and the age and condition of your existing frames.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in South Windsor
In our search to make your home improvements easier and more eco-friendly in South Windsor, the EcoWatch team landed on the above companies as the top window installation companies in the city. Along with energy efficiency, we reviewed each installer and assigned rankings based on the following methodology:
Service Area
Since this is a guide for South Windsor, we gave more points to companies that serve the city. There are other reputable providers that didn’t make our list because of the low odds that they would serve the average homeowner in South Windsor.
Work Quality
When picking new windows, the quality and range of services can often play just as important of a role in overall efficiency and performance as the brand of window you opt for. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent customer feedback to find the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it reflects the quality of services across nearly every category, including quality of installation, warranty, quality of parts, professionalism, cost and more.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing the prices of providers, we awarded higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to South Windsor’s climate, homeowners will want to mitigate low efficiency, rot and water damage. We factored in local experience to reflect the ability of South Windsor window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
South Windsor, CT Window Replacement FAQs
What is the average cost to install new windows?
The typical cost to install a single window ranges between $450 and $650. There are many factors that affect the price, including how energy-efficient the windows are, local labor costs, styles and sizes of windows, the number of windows, your property’s location and the materials used in designing the windows.
What are the most common kinds of replacement windows?
The most common kinds of windows for homes include: awning windows, casement windows, double-hung and single-hung windows, picture windows, bay windows, slider windows and transom windows.
What services do window installation companies provide?
Window installers cover the entire process — from replacing old windows with new ones to cleaning up afterward. In addition, many companies offer window manufacturing, customization and repairs.
When is the best time of year to replace windows?
While you can install windows any time of year, warmer weather is usually better for replacing windows. In addition, the weather should be dry, since rain can make the installation harder.
How do you know it’s time to replace your windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, then they should probably be replaced. Other than that, if your windows have damage anywhere on them, or they have become difficult to open or close, they may need to be replaced.