28 Best Window Replacement Companies in Coventry, CT (Mar 2023)
Window Companies Near Me
Looking to upgrade your home's windows? We've got you covered in this guide to the top window installation companies.
We analyzed all the top window installers in Coventry and selected the top 28 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
Whether you're updating for aesthetics or have damaged windows, windows play a key role in conserving your home's energy. The Department of Energy estimates that heat or cool air lost through outdated or drafty windows could account for nearly 30% of residential energy climate costs. In Coventry, where the energy bills are an average of $37 per month, that's almost $$132 per year wasted.
That's bad news for both your wallet and the environment, but one of the top window installation companies can help you with that.
Efficient windows are of particular importance in Coventry, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $461 a year.
Best Affordability
Window World
- Low prices relative to competitors
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Award-winning company
- More expensive than competition
Best for Residential Windows
Window Nation
- Manufactures products in-house
- Award-winning company
- Wide variety of products and services
- Installation not covered by warranty
Best Window Replacement Companies in Coventry
The EcoWatch team evaluated dozens of installers across the country to find the top window replacement companies for our readers. We assessed the companies on their energy-efficient offerings, customer service, coverage area, local experience, price and more.

Window World
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Low prices relative to competitors
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Large serice area
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EnergyStar Partner
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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 over 27 years of experience in the windows industry, and it currently serves 200 locations nationwide.
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 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 Coventry?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate information is to receive a free quote from the company.

Renewal by Andersen
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Great industry reputation
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Member of US Green Building Council
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Award-winning company
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More expensive than competition
Renewal by Andersen offers the best availability in Coventry. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window installation industry. The provider has plenty of glowing reviews from customers online.
You may want to consider opting for Andersen if you're looking for a installer 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 WindowsRenewal by Andersen appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Coventry?Andersen does not list prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you'd like more accurate information, you can receive a quote on the company's website.

Window Nation
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Manufactures products in-house
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Award-winning company
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Wide variety of products and services
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Installation not covered by warranty
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 been in the window industry for about 16 years. Hundreds of positive reviews from customers online back the provider's reputation.
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 variety 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 Coventry?Window Nation doesn't have any prices displayed on its website, but 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 pricing information is to request a free 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. This provider has 23 years of experience in the window installation industry, and it has established itself as one of the most respected companies in the business. Its reputation is backed by hundreds of positive reviews from customers online.
If you're looking for a company that installs windows and doors at businesses across the Eastern U.S, Aeroseal may be the right company for you.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Coventry?Pricing information is not available on Aeroseal's website because the cost of window replacement differs based on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. Getting a free quote on its website is the best way to get more accurate pricing information.
We've recommended installers with shining reputations, but keep in mind these are national companies, so the quality of service may differ depending on your local crew. We have tried to remain unbiased and transparent by mentioning pros and cons for every company we reviewed.
More Window Replacement Companies in Coventry
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Good Customer Service
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No-fee Quotes
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Locally Recognized for Quality
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Educational Website
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Nu-Face Home Improvements
Plantsville, CT-
Locally Recognized for Quality
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No-fee Quotes
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Good Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
Advanced Window Systems LLC
Cromwell, CT-
No-fee Quotes
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Timely Service
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Consistent Workmanship
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Excellent Customer Service
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Mainville Windows & Doors
Newington, CT-
Excellent Customer Service
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Reliable Appointment Windows
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Price Transparency
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Helps Educate Customers
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Guaranteed Building Maintenance
Sturbridge, MA-
Price Transparency
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Locally Recognized for Quality
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Excellent Customer Service
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Arrives on Time
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
United Glass & Mirror Co
Bozrah, CT-
Good Customer Service
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Award-Winning
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Price Transparency
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Heavy Glass
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Tempered Glass
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Doors
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Custom Windows
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Commercial Windows
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Sliding Glass
Window World of Hartford
Manchester, CT-
Helps Educate Customers
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Locally Recognized for Quality
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Good Customer Service
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Reliable Appointment Windows
Services Offered
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Custom Windows
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Fast Delivery
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Sliding Glass
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Double-Hung
National Vinyl LLC | National Vinyl Windows
Chicopee, MA-
Free Quotes
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Dependable Service
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Good Customer Service
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Timely Service
Services Offered
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Custom Windows
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Fast Delivery
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Sliding Glass
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Double-Hung
V. Nanfito Roofing & Siding
Meriden, CT-
Award-Winning
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Helps Educate Customers
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Excellent Customer Service
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Free Quotes
Services Offered
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Residential Windows
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Business Windows
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Full-Service Installations
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Custom Windows
Mr. Handyman of Norwich, New London and Glastonbury
Norwich, CT-
Reliable Appointment Windows
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Dependable Service
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Excellent Customer Service
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Price Transparency
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
Excellent Customer Service
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No-Hassle Pricing
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Reliable Service
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Timely Service
Services Offered
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Residential Windows
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Business Windows
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Full-Service Installations
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Custom Windows
Peter L Brown
Granby, CT-
Arrives on Time
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Educational Website
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Excellent Customer Service
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No-Hassle Pricing
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Lowe's Home Improvement
Ware, MA-
Educational Website
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No-fee Quotes
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Price Transparency
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Capitol Glass Co Inc
West Hartford, CT-
No-Hassle Pricing
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Good Customer Service
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Educational Website
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No-fee Quotes
Services Offered
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Residential Windows
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Architectural Glass
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Doors
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Sliding Glass
Pella Windows & Doors of West Springfield
West Springfield, MA-
Award-Winning
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No-Hassle Pricing
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Free Quotes
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Good Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Thomas Garbati Builders, LLC
Waterford, CT-
Excellent Customer Service
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Consistent Workmanship
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Educational Website
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Reliable Appointment Windows
Services Offered
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Custom Window Designs
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Residential Windows
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Double-Hung
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Consistent Workmanship
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No-Hassle Pricing
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Wallingford Glass
Wallingford, CT-
Excellent Customer Service
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Free Quotes
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No-Hassle Pricing
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Dependable Service
Services Offered
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Residential Windows
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Tempered Glass
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Doors
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Stained Glass
Cussons Sash
Glastonbury, CT-
No-Hassle Pricing
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Reliable Service
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
Fiderio & Sons
Meriden, CT-
Educational Website
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No-fee Quotes
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Reliable Service
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
Major Home Improvements LLC - Roofing
Springfield, MA-
Good Customer Service
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Helps Educate Customers
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Free Quotes
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Reliable Appointment Windows
Services Offered
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Double-Hung
Vovk Home Improvement Siding~Roof~Windows
Feeding Hills, MA-
No-fee Quotes
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Timely Service
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Educational Website
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Price Transparency
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
J C Tonnotti Window Co
Southington, CT-
No-fee Quotes
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Timely Service
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Reliable Service
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Excellent Customer Service
Services Offered
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Custom Windows
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Aluminum Window Frames
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Sliding Glass
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Double-Hung
Window Nation
Wallingford, CT-
Excellent Customer Service
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Helps Educate Customers
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No-fee Quotes
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Reliable Service
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
The Siding Store, Inc
Plainfield, CT-
Reliable Service
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Free Quotes
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Excellent Customer Service
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Reliable Appointment Windows
Services Offered
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Sliding Glass
GA Siding, Windows & Roofing
Oxford, MA-
No-fee Quotes
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Price Transparency
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Helps Educate Customers
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Reliable Appointment Windows
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
AA Glass Inc
Bloomfield, CT-
No-Hassle Pricing
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Educational Website
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Dependable Service
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Good Customer Service
Services Offered
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Glass Showers
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Residential Windows
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Custom Windows
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Commercial Windows
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Sliding Glass
Handyman Services of CT LLC
Niantic, CT-
Reliable Service
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Gives to charity
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Free Quotes
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Good Customer Service
Services Offered
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Custom Window Designs
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Sliding Glass
How Installing Energy-Efficient Windows in Coventry Saves You Money
Energy-efficient windows can benefit you in more than one way. Here are some reasons you may want to take the plunge and make the switch:
- Save on energy bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Switching to energy-efficient models can help decrease how much you have to pay, therefore saving you about 12% more on your bills.
- Protect your investment: Upgrading your windows is an important part of maintaining your property and its value, especially if your home is on the older side.
- Protect your valuables from fading: When you switch to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
- Reduce your carbon footprint: In Coventry, you can lower your indirect greenhouse gas emissions by about 147 pounds per year when you switch to energy-efficient windows.
Estimated Cost of Window Replacement in Coventry
Windows come in different shapes and sizes, so costs and services will vary tremendously. Here are the typical costs and services that you can find from window installation companies.
How Much Do New Windows Cost?
According to our market research, the national average cost of replacing a single window is around $600. However, window replacement costs can range from $200 to $1,200 a window. This is because of the fact that the cost of window installations are based on a variety of factors specific to your home, including the size, material and number of windows you need to replace, as well as where your property is located.
With windows, efficiency is the most important factor for most homeowners. High efficiency windows may cost more off the bat, but by increasing the efficiency of your home — particularly during the summer and winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Coventry homeowners $461+ a year after replacing single-pane windows.
Costs will also vary based on the material of your frame. Aluminum frames are the least expensive. They're sturdy, light and easy to maintain, but provide poor insulation. Vinyl frames are a bit more expensive and provide good insulation. Composite frames made with wood fibers encased in plastic also provide good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and provide decent insulation for your home.
What Services do Window Installers Offer?
The first step of a window installation is to figure out whether you need a full-frame or pocket installation.
A full-frame installation replaces the full window, including the windowsill, frame, trim and the window panes. As this kind of installation is more involved, it will be more expensive than a pocket installation. Pocket installations (or retrofits) involve replacing a window within the existing frame, which makes pocket installations more simple and affordable. But, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.
If you're not sure which kind of window installation service you should get, your installer can help you out. Typically, the choice is based on factors such as the age and condition of the home, the type of building material, budget and time restrictions.
Best Affordability
Window World
- Low prices relative to competitors
- Large serice area
- EnergyStar Partner
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Award-winning company
- More expensive than competition
Best for Residential Windows
Window Nation
- Manufactures products in-house
- Award-winning company
- Wide variety of products and services
- Installation not covered by warranty
How We Choose the Best Window Installers in Coventry
The EcoWatch Reviews team is different from most reviewers since we look at these companies through a sustainability lens. We have reviewed the top window replacement companies in Coventry mostly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows can lower electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve the Coventry area so you can find a quality window installation company near you.
Work Quality
When installing new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand you choose. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don't have nice feedback about their experience with a certain company, it won't be featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installers are not going to provide the most quality service. Still, we want to ensure we're highlighting companies that provide a wide range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a significant investment, so you'll want to be certain that investment is protected. Window installation companies that give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Coventry's climate, homeowners need to be wary of low efficiency, rot and water damage. We factored in local experience to reflect the ability of Coventry window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Coventry, CT Window Replacement FAQs
How much does window installation cost?
The national average cost of installing one window is around $600 but can range from $200 to $1,200, based on several factors. The price is typically influenced by the size of the window, the type and material of the window and the location of your property. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What type of window is the best for energy efficiency?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open are more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — that means they're certified energy-efficient by the U.S. Department of Energy.
Do I really need to use a window installation company?
You should hire a window installation company whenever you need to replace your windows. Installing windows is a complicated process that can be difficult to do on your own, so it's best handled by the professionals.
When is it 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. Apart from that, if your windows have any damage on them, or they have become difficult to operate, they may need to be replaced.
Should I replace all my windows at the same time?
If you're upgrading your windows to save on your energy bills, replacing all of the windows together is the only way to gain that benefit. On the other hand, if you have only a few windows that are broken or leaky, you can replace just those.