20 Best Window Companies in Waterbury, CT (2023 Reviews)
Are you thinking of upgrading your windows? Our list of the best window installation companies can help you narrow down which one to choose.
We analyzed all the top-rated window companies in Waterbury 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
Whether you're updating for aesthetics or have damaged windows, windows play a vital role in conserving your home's energy. Potential leaks or drafts can cut your home's energy efficiency by up to 30%, according to the Department of Energy. In Waterbury, that's an average of $420 per year that you could save on your electricity bills by making the switch.
Replacement windows improve your home's insulation, not only making you more comfortable during extreme temperatures, but also saving you money and helping the environment.
Efficient windows are particularly important in Waterbury, where the temperature varies throughout the year. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $420 a year.
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 Waterbury
The EcoWatch team evaluated many window installation companies across Waterbury to narrow our list down to the top ones. The providers in this article scored best in our categories, which include energy-efficient offerings, availability, price, customer service and more.

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 offers windows expertise in Waterbury. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation business for around 27 years. The company has plenty of positive reviews from customers online.
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 Waterbury?Prices aren’t listed on Window World’s website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

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 provides the best availability in Waterbury. Andersen has been in the window installation industry for around 27 years.
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 WindowsThere are a wide variety 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 Waterbury?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 to know for sure, you can receive a quote on the company’s website.

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 offers the best window installation for businesses in Waterbury. 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 about 23 years of experience in the windows industry, and it currently serves 13 states and Washington D.C. Its reputation is backed by all the 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 company for you.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows’s commitment to sustainability shows in its 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 Waterbury?Even though prices are not readily available on Aeroseal’s website, it provides high-quality windows at a competitive price point. You can inquire about a free quote on its website for more information about the cost.

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 offers the best residential windows in Waterbury. 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 installation business for around 16 years. The company has plenty of positive reviews from customers online.
It 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 Waterbury?Prices aren’t listed on Window Nation’s 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. Requesting a free quote on its website is the best way to know for sure.
We aim to remain unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Waterbury
Renewal by Andersen - Branford
Branford, CT-
Price Transparency
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Educational Website
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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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Double-Hung
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Window Replacement
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Custom Window Designs
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Residential Windows
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Glass Showers
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Sliding Glass
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Stained Glass
Window World of Hartford
Manchester, CT-
Educational Website
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Good Customer Service
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Free assessment
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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 Repair
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Window Replacement
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Residential Windows
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Fast Delivery
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Commercial Windows
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Bay Windows
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Double-Hung
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Sliding Glass
Window Nation
Wallingford, CT-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Double-Hung
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Sliding Glass
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Bay Windows
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Window Replacement
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Energy-Efficient Options
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Residential Windows
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Stained Glass
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Custom Window Designs
J.C. Tonnotti Window Company
Southington, CT-
Good Customer Service
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Educational Website
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Timely Service
Services Offered
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Window Replacement
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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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Residential Windows
Home Services at The Home Depot
Waterbury, CT-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Fast Delivery
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Window Replacement
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Custom Window Designs
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Glass Showers
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Residential Windows
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Commercial Windows
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Stained Glass
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Double-Hung
Coastal Construction Group LLC
Cheshire, CT-
Educational Website
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Free assessment
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Timely Service
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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 Replacement
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Double-Hung
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Stained Glass
Woodbury Supply Company, Inc.
Oxford, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Fast Delivery
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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
Town & Country Glass Shop llc
Woodbury, CT-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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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
Hometech Sunrooms & Remodeling
Southington, CT-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Fast Delivery
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Residential Windows
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Full-Service Installations
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Custom Window Designs
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Window Replacement
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Glass Showers
Bencar Building Systems LLC
Wallingford, CT-
Good Customer Service
Services Offered
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Window Replacement
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Glass Showers
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Residential Windows
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Custom Window Designs
Nu-Face Home Improvements
Berlin, 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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Fast Delivery
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Glass Showers
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Energy-Efficient Options
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Window Replacement
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Double-Hung
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Commercial Windows
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Custom Window Designs
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Residential Windows
Yargueta Construction
Newington, CT-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
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Timely Service
Services Offered
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Custom Window Designs
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Double-Hung
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Glass Showers
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Commercial Windows
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Window Replacement
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Full-Service Installations
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Residential Windows
DiMartino Home Improvement
North Haven, CT-
Price Transparency
Services Offered
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Window Replacement
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Double-Hung
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Bay Windows
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Residential Windows
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Aluminum Window Frames
Window Restorations of Connecticut - formerly Bi-Glass of Connecticut
Berlin, CT-
Price Transparency
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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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Window Replacement
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Energy-Efficient Options
Bert Falsetti's Home Improvement LLC
Shelton, CT-
Educational Website
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Price Transparency
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Free assessment
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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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Window Replacement
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Energy-Efficient Options
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Custom Window Designs
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Sliding Glass
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Double-Hung
Castle Windows
East Berlin, 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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Residential Windows
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Window Replacement
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Custom Window Designs
Crown Home Improvement LLC
Torrington, CT-
Educational Website
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Timely Service
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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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Window Replacement
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Custom Window Designs
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Commercial Windows
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Fast Delivery
Mainville Windows & Doors
Newington, CT-
Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Commercial Windows
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Glass Showers
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Sliding Glass
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Residential Windows
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Aluminum Window Frames
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Window Replacement
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Bay Windows
Superior Windowland
Newtown, CT-
Price Transparency
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Free assessment
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Educational Website
Services Offered
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Window Replacement
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Sliding Glass
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Double-Hung
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Custom Window Designs
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Glass Showers
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Residential Windows
Pella Windows & Doors of Monroe
Monroe, CT-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
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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Window Replacement
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Sliding Glass
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Residential Windows
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Bay Windows
Calculate how much you can expect to pay for window installation and replacement in Waterbury, 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 Waterbury Saves You Money
Switching to energy-efficient windows can improve the comfort of your home and help you save on electricity bills. Here are more ways switching out your windows could benefit you:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Better temperature control in your home: Energy-efficient windows can lower the amount of heat lost through your windows when heating your home.
- Save on energy bills: Installing energy-efficient windows reduces your energy bills by about 12% because you use less energy.
- Protect your investment: If your home is on the older side, your windows are most likely outdated. Upgrading your windows can improve the insulation in your home and also help raise the value of your house if you decide to sell.
Estimated Cost of Window Replacement in Waterbury
Let's go over the cost of updating your windows and the kinds of services you may need for your home.
How Much Do New Windows Cost?
Generally, homeowners in Waterbury can expect that most replacement window installations will range from $250 to $1,200, with the average cost sitting at about $600. This is because of the fact that window installations are based on several factors specific to your home, including the size, material and number of windows you need to install, as well as the location of your property.
It's important to note that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Waterbury homeowners $420+ a year when replacing single-pane windows.
Costs will also vary depending on the material of your frame. Aluminum frames cost the least. They're sturdy, light and easy to maintain, but offer poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made using wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames cost the most and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
The first thing to ask yourself when planning on installing new windows is: Do you need a full-frame installation or a pocket installation?
Full-frame installations are usually done when you want to change the style of your windows or your window has a lot of rot or deterioration. With this service, your professionals will replace the complete window, including the sill, trim and frame. Pocket installations are simpler and won't carry as large a bill, as they entail simply replacing the window within its existing frame. But if the frame has any damage or deterioration, you may need a full-frame installation instead.
If you're still trying to decide which type of installation you should get, you can talk to your installer and get their recommendation. The decision mostly depends on how old the frames are and if there's any damage.
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 Waterbury
EcoWatch reviews are different from other reviews, as we look at these companies through a sustainability lens. We've decided to evaluate the top window replacement companies in Waterbury mainly based on energy efficiency, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows can cut your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is self-explanatory, but we've chosen to highlight window installation companies that serve a wide variety of states and cities so you can find the best window installation company near you.
Work Quality
We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer on this list to ensure its technicians are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent online reviews to determine the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it reflects the quality of services across nearly every category, including cost, quality of installation, warranty, quality of parts, professionalism and more.
Cost
This one is a give-and-take: similar to other services, cheap window installers won't always provide the highest quality service. On the other hand, we want to ensure we're highlighting companies that provide a range of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important to many homeowners. That's why window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Due to Waterbury's climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of Waterbury window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Waterbury, CT Window Replacement FAQs
How much does window installation cost?
The national average cost to replace one window is around $600 but can range between $200 and $1,200, based on several factors. The price is usually influenced by the location of your property, the type and material of the window and the size of the window. Also, keep in mind that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What kind of window is the most energy-efficient?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don't open will be more efficient than windows that do. If you want to be sure you're getting the most energy-efficient windows, look for models with the blue Energy Star certification — that means they're certified energy-efficient by the U.S. Department of Energy.
Can you replace your own windows?
While you can install your own windows, doing so requires a lot of time and experience with home improvement projects. Hiring a professional can help ensure that the installation is done properly and that you won't have to spend the time and effort to do it yourself.
What time of year is the best time to replace my windows?
Though you can install windows any time of year, warmer weather is often better for installing replacement windows. In addition, it shouldn't be raining, since rain can make the installation more difficult.