20 Best Window Companies in Avon, CT (2023 Reviews)
When you need to upgrade your windows, our reviews of the best window installation companies can help you find the provider for you.
We analyzed all the top-rated window companies in Avon 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 September 15, 2023
Why you can trust EcoWatch
The EcoWatch Reviews team is all about finding solutions for eco-conscious homeowners in Avon. Damaged or outdated windows could lead to having higher electric bills during the winter or summer months.
That's also bad for the environment, as the extra energy required by damaged windows increases your carbon footprint.
We've put together this list of the best installation companies to help you in your search, so you can not only enjoy brand new windows, but also save money on your electric bills.
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 Avon
The EcoWatch Reviews team evaluated dozens of companies that service the Avon area to find the best window installation companies by our standards. The providers in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

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 has windows expertise in Avon. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in Avon. Hundreds of positive reviews on customer review websites back the provider's reputation.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the company for you.
Energy Efficiency of Window World WindowsThere are a wide range of window types that Window World offers, 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 Avon?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. You can request a free quote on its website for more information about pricing.

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 has the best availability in Avon. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in Avon. Hundreds of positive reviews on customer review websites back the provider's reputation.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the company for you.
Energy Efficiency of Renewal by Andersen WindowsThere are a wide range of window types that Renewal by Andersen offers, 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 Avon?Andersen does not mention 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. You can request a free quote on its website for more information about pricing.

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 around 23 years of experience in the window installation business.
Aeroseal may be the company for you if you're interested in 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 Avon?Aeroseal does not mention prices on its website, but it provides high-quality windows at a competitive price point. Receiving a free quote on its website is the best way to get more accurate pricing information.

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 has the best residential windows in Avon. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has 16 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in Avon. Hundreds of positive reviews on customer review websites back the provider's reputation.
If you’re looking for a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms, Window Nation may be the company for you.
Energy Efficiency of Window Nation WindowsThere are a wide range of window types that Window Nation offers, 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 Avon?Window Nation does not mention prices 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. You can request a free quote on its website for more information about pricing.
We aim to stay unbiased and transparent by including pros and cons for every company. Additionally, any partnerships do not affect our reviews.
More Window Companies in Avon
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Free assessment
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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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Stained Glass
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Residential Windows
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Glass Showers
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Window Replacement
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Custom Window Designs
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Commercial Windows
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Sliding Glass
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Double-Hung
Window World of Hartford
Manchester, CT-
Educational Website
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Timely Service
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Commercial Windows
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Custom Window Designs
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Double-Hung
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Fast Delivery
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Window Repair
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Bay Windows
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Window Replacement
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Sliding Glass
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Residential Windows
Window Nation
Wallingford, CT-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Window Replacement
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Bay Windows
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Stained Glass
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Double-Hung
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Residential Windows
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Sliding Glass
Yargueta Construction
Newington, CT-
Free assessment
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Price Transparency
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Educational Website
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Timely Service
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Good Customer Service
Services Offered
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Residential Windows
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Double-Hung
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Commercial Windows
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Window Replacement
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Glass Showers
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Custom Window Designs
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Full-Service Installations
Finestra Windows & Installation
West Hartford, CT-
Educational Website
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Price Transparency
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Free assessment
Services Offered
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Window Replacement
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Tempered Glass
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Residential Windows
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Double-Hung
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Custom Window Designs
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Glass Showers
ProEdge Remodeling by Custom Built
Windsor, CT-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Energy-Efficient Options
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Residential Windows
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Sliding Glass
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Window Replacement
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Commercial Windows
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Double-Hung
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Fast Delivery
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Bay Windows
A-1 Windows & Doors LLC
Simsbury, CT-
Free assessment
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Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Custom Window Designs
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Window Replacement
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Commercial Windows
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Window Repair
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Residential Windows
Innerglass Window Systems
Herman Dr, CT-
Price Transparency
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Free assessment
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Window Replacement
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Stained Glass
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Tempered Glass
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Energy-Efficient Options
Highland Window Company, LLC
West Hartford, CT-
Good Customer Service
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Free assessment
Services Offered
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Residential Windows
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Window Replacement
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Double-Hung
Peoples Products - HR40 Windows
Newington, 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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Aluminum Window Frames
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Commercial Windows
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Energy-Efficient Options
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Residential Windows
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Window Replacement
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Custom Window Designs
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Fast Delivery
Mainville Windows & Doors
Newington, CT-
Price Transparency
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Free assessment
Services Offered
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Window Replacement
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Residential Windows
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Sliding Glass
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Commercial Windows
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Bay Windows
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Glass Showers
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Aluminum Window Frames
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Custom Window Designs
Energy Busters LTD
Hartford, CT-
Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Residential Windows
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Window Replacement
Long Home Products
Windsor, CT-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Residential Windows
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Window Replacement
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Double-Hung
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Custom Window Designs
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Bay Windows
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Glass Showers
Nu-Face Home Improvements
Berlin, CT-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Commercial Windows
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Residential Windows
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Window Replacement
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Custom Window Designs
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Fast Delivery
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Energy-Efficient Options
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Double-Hung
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Glass Showers
Harris Home Improvement
Granby, CT-
Timely Service
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Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Window Repair
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Residential Windows
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Window Replacement
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Commercial Windows
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Fast Delivery
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Glass Showers
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Double-Hung
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Custom Window Designs
Home Services at The Home Depot
Berlin, CT-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Stained Glass
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Fast Delivery
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Window Replacement
J.C. Tonnotti Window Company
Southington, CT-
Timely Service
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Educational Website
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Good Customer Service
Services Offered
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Aluminum Window Frames
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Custom Window Designs
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Residential Windows
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Window Replacement
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Energy-Efficient Options
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Commercial Windows
Hometech Sunrooms & Remodeling
Southington, CT-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Full-Service Installations
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Fast Delivery
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Custom Window Designs
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Window Replacement
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Residential Windows
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Glass Showers
Castle Windows
East Berlin, CT-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Custom Window Designs
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Window Replacement
Window Restorations of Connecticut - formerly Bi-Glass of Connecticut
Berlin, CT-
Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Energy-Efficient Options
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Residential Windows
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Window Replacement
Calculate how much you can expect to pay for window installation and replacement in Avon, 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 Avon Saves You Money
There are quite a few perks of upgrading to energy-efficient windows. A few reasons you may want to consider making the switch are the following:
- Save on power bills: The Department of Energy estimates that heat gained or lost through windows accounts for about 25-30% of residential energy use. Installing energy-efficient windows can help lower that amount, which helps you save $446 a year on your bills.
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Reduce your carbon footprint: Decreasing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by 147 pounds per year on average.
- Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help raise the value of your property if you decide to sell.
Estimated Cost of Window Replacement in Avon
Each window installer offers varying services and has different price points depending on several factors.
How Much Do New Windows Cost?
Though the average of installing a single window is around $600, it can range from $200 to $1,200. This is because of the fact that the cost of window installations depend on several factors specific to your home, including the size, material and number of windows you need to install, as well as where your property is located.
It's important to remember that windows with the best efficiency may cost more initially but can save you hundreds of dollars by lowering your energy bills. Investing in certified energy-efficient windows can save Avon homeowners $446+ a year when replacing single-pane windows.
We advise getting free quotes from multiple window installers to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
Generally, there are two types of window installation services companies offer: full-frame and pocket installations.
Full-frame installations involve replacing the complete window, including the sill, frame and trim. You most likely need a full-frame installation when you want to change the style of your windows or your window has considerable rot or deterioration. Because full-frame installations are more involved, they will increase the total cost. Pocket installations are on the simpler end and won't cost as much because they involve simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you may have to get a full-frame installation instead.
If you're hiring a reputable window installation company, your company will be able to recommend the best type for your project. In Avon, the decision will mostly be influenced by the efficiency of your home and the age of your existing frames.
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
How We Choose the Best Window Installers in Avon
EcoWatch reviews are different from most reviews, as we assess these companies through a sustainability lens. Along with energy efficiency, we analyzed window companies all across the state and ranked them using the following methodology:
Service Area
Since this is a guide for Avon, we gave more points to companies that provide services to the city. There are other reputable providers that didn't make the list because they wouldn't be able to serve homeowners in Avon.
Work Quality
We're willing to bet that you're looking for a company to do a great job installing windows. We've vetted each company featured in our guide to make sure its contractors are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If the majority of customers don't have good things to say about their service from a certain window installation company, it won't be featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies won't always provide the highest quality service. Still, we want to ensure we're highlighting companies that offer a variety of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. For that reason, window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installation companies that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Avon, CT Window Replacement FAQs
How much does window installation cost?
The national average cost of installing a single window is about $600 but can range from $200 to $1,200, based on several factors. The price is often dependent on the size of the window, the location of your property and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What are the most common kinds of replacement windows?
There are various types of windows you can get for your house, including awning windows, double-hung and single-hung windows, slider windows, bay windows, transom windows, picture windows and casement windows.
What services do window replacement companies provide?
Window installers visit your house to remove your old windows and replace them with new ones. Some companies install products manufactured by other companies, whereas others install their own windows. The installer will also clean up after the installation is complete.
How long does window installation typically take?
Since the average installation time is 30 minutes per window, about 16 windows can be installed in an 8-hour work day.
How do you know it's time to replace your windows?
Windows typically last 20 to 30 years, but anytime you see damage on your windows, it's a good idea to have an expert take a look at them to see if they need any repairs or replacements.