20 Best Window Companies in Prospect, CT (2023 Reviews)
We analyzed all the top-rated window companies in Prospect and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated October 25, 2023
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Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Prospect

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of industry experience, and it currently provides services to 200 locations nationwide.
Window World may be the company for you if you want one that 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 WindowsThere are a wide range of window types available from Window World, some of which are Energy Star products. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Prospect?Even though prices are not readily available on Window World’s website, it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can ask for a quote from the company.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of industry experience, and it currently provides services to nearly every state except Mississippi and West Virginia.
Andersen may be the company for you if you want one that 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 WindowsThere are a wide range of window types available from Renewal by Andersen, some of which are Energy Star products. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Prospect?Even though prices are not readily 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. For more accurate information on the cost, you can ask for a quote from the company.

Aeroseal Windows
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Many years of experience
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Great industry reputation
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Low number of customer complaints
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Manufactures products in-house
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Custom Designs
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No lifetime warranty
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Not ideal for residential installations
Aeroseal Windows is 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 about 23 years of industry experience, and it currently provides services to 13 states and Washington D.C.
Aeroseal may be the company for you if you want one that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThere are a wide range of window types available from Aeroseal Windows, some of which are Energy Star products. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in Prospect?Even though prices are not readily available on Aeroseal’s website, it provides high-quality windows at a competitive price point. For more accurate information on the cost, you can ask for a quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has about 16 years of industry experience, and it currently provides services to residents within 75 miles of its showrooms, which are in 13 states.
Window Nation may be the company for you if you want one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsThere are a wide range of window types available from Window Nation, some of which are Energy Star products. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Prospect?Even though prices are not readily 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. For more accurate information on the cost, you can ask for a quote from the company.
More Window Companies in Prospect
Renewal by Andersen Windows Connecticut
Middletown, CT-
Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Window Install & Replacement
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Fiberglass Frames
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Sliding Glass Doors
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Bay Windows
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Vinyl Frames
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Aluminum Frames
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Andersen
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Custom Window Designs
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Energy-Efficient Options
Window World of Hartford
Manchester, CT-
Timely Service
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Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Custom Window Designs
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Vinyl Frames
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Double-Hung
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Bay Windows
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Sliding Glass Doors
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Window Install & Replacement
Window Nation
Wallingford, CT-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Sliding Glass Doors
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Window Install & Replacement
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Fiberglass Frames
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Bay Windows
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Energy-Efficient Options
Nu-Face Home Improvements
Plantsville, CT-
Free assessment
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Timely Service
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Alside
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Window Install & Replacement
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Energy-Efficient Options
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Glass Showers
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Window Repair
J.C. Tonnotti Window Company
Southington, CT-
Good Customer Service
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Timely Service
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Educational Website
Services Offered
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Energy-Efficient Options
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Window Install & Replacement
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Residential Windows
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Commercial Windows
Bencar Building Systems LLC
Wallingford, CT-
Good Customer Service
Services Offered
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Glass Showers
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Window Install & Replacement
Naugatuck Window & Glass
Naugatuck, CT-
Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Glass Showers
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Window Install & Replacement
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Commercial Windows
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Energy-Efficient Options
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Window Repair
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Glass Doors
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Mirrors
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Skylights
Woodbury Supply Company, Inc.
Oxford, CT-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Skylights
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Energy-Efficient Options
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Window Install & Replacement
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Marvin
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Velux
Bartlett Contracting, LLC
Wolcott, CT-
Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Residential Windows
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Glass Showers
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Window Install & Replacement
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Bay Windows
Empire Construction
Wallingford, CT-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Commercial Windows
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Window Repair
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Aluminum Frames
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Window Install & Replacement
DiMartino Home Improvement
North Haven, CT-
Price Transparency
Services Offered
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Window Install & Replacement
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Aluminum Frames
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Bay Windows
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Triple Pane Glass
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Storm Windows
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Storm Doors
Exteriors Plus LLC
Terryville, CT-
Good Customer Service
Services Offered
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Window Install & Replacement
Benoit Construction Group LLC
Wallingford, CT-
Educational Website
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Price Transparency
Services Offered
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Window Install & Replacement
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Window Repair
Town & Country Glass Shop llc
Woodbury, CT-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Window Install & Replacement
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Glass Showers
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Mirrors
Phoenician Home Improvement LLC
Plainville, CT-
Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
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Timely Service
Services Offered
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Window Install & Replacement
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Window Repair
Gibson Cellar Door and Window
Kensington, CT-
Price Transparency
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Educational Website
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Free assessment
Services Offered
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Window Repair
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Window Install & Replacement
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Vinyl Frames
Marino's Waterbury Glass
Waterbury, CTServices Offered
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Window Repair
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Screen Repair
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Window Install & Replacement
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Mirrors
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Commercial Windows
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Glass Showers
Window Restorations of Connecticut - formerly Bi-Glass of Connecticut
Berlin, CT-
Price Transparency
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Good Customer Service
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Timely Service
Services Offered
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Wood Frames
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Energy-Efficient Options
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Window Install & Replacement
Bert Falsetti's Home Improvement LLC
Shelton, CT-
Good Customer Service
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Timely Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Sliding Glass Doors
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Energy-Efficient Options
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Vinyl Frames
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Window Install & Replacement
Advanced Window Systems LLC
Cromwell, CT-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Sliding Glass Doors
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Glass Showers
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Window Install & Replacement
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Bay Windows
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Energy-Efficient Options
Calculate how much you can expect to pay for window installation and replacement in Prospect, 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 Prospect Saves You Money
There are quite a few benefits of switching to energy-efficient windows. A few reasons you may want to consider making the switch include the following:
- Reduce your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% once you install Energy Star certified windows. In Prospect, that’s about 147 pounds per year on average.
- 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.
- Save money on electricity bills: The Department of Energy estimates that heat gained or lost via windows makes up about 25-30% of residential energy use. Switching to energy-efficient windows can help lower that amount, which helps you save more on your bills.
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
Estimated Cost of Window Replacement in Prospect
How Much Do New Windows Cost?
What Services do Window Installers Offer?
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty