24 Best Window Replacement Companies in Waterbury, CT (Mar 2023)
Window Companies Near Me
Looking to upgrade your home's windows? We've got all the information you need in this list of the top window installation companies.
We analyzed all the top window installers in Waterbury and selected the top 24 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
A review of the best window installation companies in Waterbury may not seem like the most captivating article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might think. Damaged or outdated windows can cost you in power bills. In fact, the Department of Energy estimates that 25-30% of your house's heat or cool air could be lost through your windows.
That's also bad for the environment, as the additional energy required by old windows increases your carbon footprint.
As windows are so important for your home, selecting the right company for you is a big decision to make. That's why the EcoWatch team has made this list of the top window replacement companies, so you can more easily make an informed decision.
Best Affordability
Window World
- Low prices relative to competitors
- EnergyStar Partner
- Large serice area
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Custom Designs
- Great industry reputation
- No lifetime warranty
Best Window Replacement Companies in Waterbury
The EcoWatch Reviews team evaluated several installers in Waterbury to find the top ones for our readers. We assessed the providers on their energy-efficient offerings, local experience, customer service, price, coverage area and more.

Window World
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Low prices relative to competitors
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EnergyStar Partner
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Large serice area
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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 around 27 years of experience in the window installation industry. Hundreds of positive reviews on customer review websites back the provider's reputation.
Window World may be the company for you if you're looking for one that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsThere are a wide variety 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 mentioned 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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Award-winning company
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Great industry reputation
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Manufactures products in-house
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No lifetime warranty
Renewal by Andersen has the best availability in Waterbury. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the windows business, and it has proved to be one of the most respected companies in the business.
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, this may be the right provider 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 Waterbury?Andersen doesn't have any prices listed 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. Requesting a free quote on its website is the best way to get more accurate pricing information.

Aeroseal Windows
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Low number of customer complaints
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Custom Designs
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Great industry reputation
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No lifetime warranty
Aeroseal Windows provides 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. This company has been operating since 1999 and currently services 13 states and Washington D.C. Many positive reviews from customers online back the company's reputation.
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 WindowsThe 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. Not all of Aeroseal's offerings are Energy Star certified, so be sure to mention that you're interested in Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Waterbury?Prices aren't listed on Aeroseal's website, but it provides high-quality windows at a competitive price point. If you'd like more accurate pricing information, you can receive a quote on the company's website.

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 provides 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 business for around 16 years. The provider has a lot of positive reviews from customers on online review websites.
You may want to consider opting for Window Nation if you're looking for a installer that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. 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?Though pricing information is not available on Window Nation's website, based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. If you'd like more accurate pricing information, you can request a quote on the company's website.
We've recommended installers with good reputations, but note that some national companies have independently owned locations in Waterbury, so the quality of service may vary depending on your local crew. We have tried to stay unbiased and transparent by describing pros and cons for each company we reviewed.
More Window Replacement Companies in Waterbury
Renewal by Andersen - Branford
Branford, CT-
Educational Website
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Excellent Customer Service
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Free Quotes
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Arrives on Time
Services Offered
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Residential Windows
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Custom Window Designs
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Business 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
TL Home Improvement LLC
Shelton, CT-
Helps Educate Customers
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Excellent Customer Service
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Free Quotes
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Timely Service
Services Offered
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Residential Windows
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Fast Delivery
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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
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Award-Winning
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Consistent Workmanship
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Excellent Customer Service
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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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Business Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Nu-Face Home Improvements
Plantsville, CT-
Reliable Appointment Windows
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Excellent Customer Service
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Helps Educate Customers
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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
Mr. Handyman of Upper Fairfield County
Fairfield, CT-
Good Customer Service
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Timely Service
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Award-Winning
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Price Transparency
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Residential Windows
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Business Windows
Advanced Window Systems LLC
Cromwell, CT-
Price Transparency
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Reliable Service
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Helps Educate Customers
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Timely 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 Windows
Eastern Glass & Shower Door
Milford, CT-
Good Customer Service
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No-fee Quotes
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Price Transparency
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Helps Educate Customers
Services Offered
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Doors
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Full-Service Installations
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Custom Window Designs
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Tempered Glass
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Residential Windows
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Business Windows
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Aluminum Window Frames
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Sliding Glass
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Glass Showers
Mainville Windows & Doors
Newington, CT-
Free Quotes
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No-Hassle Pricing
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Reliable Appointment Windows
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Excellent Customer Service
Services Offered
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Residential Windows
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Window World of Hartford
Manchester, CT-
Consistent Workmanship
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No-Hassle Pricing
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No-fee Quotes
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Excellent Customer 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-
Dependable Service
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Good Customer Service
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No-Hassle Pricing
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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 Window Designs
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Educational Website
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Free Quotes
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Award-Winning
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Reliable Service
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
No-Hassle Pricing
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Reliable Appointment Windows
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Reliable Service
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Excellent Customer 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 Window Designs
Peter L Brown
Granby, CT-
Excellent Customer Service
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Dependable Service
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No-Hassle Pricing
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Helps Educate Customers
Services Offered
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Energy-Efficient Options
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Custom Windows
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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-
Educational Website
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No-Hassle Pricing
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Doors
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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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Business Windows
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Sliding Glass
Torrington Replacement Windows
Torrington, CT-
Good Customer Service
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Educational Website
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Free Quotes
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No-Hassle Pricing
Services Offered
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Architectural Glass
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
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Bay Windows
Clinton Glass
Clinton, CT-
Price Transparency
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Award-Winning
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Fast Delivery
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Custom Windows
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Business Windows
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Sliding Glass
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
Free Quotes
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Educational Website
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Locally Recognized for Quality
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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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Architectural Glass
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Doors
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Custom Windows
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Business Windows
Villwell Builders, LLC
Waterbury, CT-
Timely Service
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Consistent Workmanship
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Award-Winning
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Price Transparency
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Free Quotes
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Excellent Customer Service
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Consistent Workmanship
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Price Transparency
Services Offered
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Energy-Efficient Options
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Custom Windows
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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-
Price Transparency
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No-fee Quotes
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Good Customer Service
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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 Windows
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Commercial Windows
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Double-Hung
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Stained Glass
Ring's End
Madison, CT-
No-fee Quotes
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No-Hassle Pricing
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Helps Educate Customers
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Excellent Customer Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Business Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Ring's End
Branford, CT-
Good Customer Service
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Free Quotes
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Price Transparency
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Helps Educate Customers
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Business Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Ring's End
South Salem, NY-
Excellent Customer Service
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Free Quotes
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Price Transparency
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Helps Educate Customers
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Business Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Cussons Sash
Glastonbury, CT-
Helps Educate Customers
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No-Hassle Pricing
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Excellent Customer Service
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Charitable Giving
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Sliding Glass
How Installing Energy-Efficient Windows in Waterbury Saves You Money
Energy-efficient windows can offer benefits in more than one way. Here are a few reasons you may want to think about making the switch:
- Protect your valuables from fading: The low-emissivity coatings on some energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Reduce your carbon footprint: Reducing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 147 pounds.
- Save money on electricity bills: Installing energy-efficient windows reduces your energy bills by about 12% since you need less energy.
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its value, particularly if your home is on the older side.
Estimated Cost of Window Replacement in Waterbury
Windows come in varying purposes, styles and shapes, so costs and services will differ greatly depending on your project. Below, we go over the average cost and services that you'll find from window installers.
How Much Do New Windows Cost?
The average cost to install a single window is about $600 but can range from $200 to $1,200. These figures vary depending on specific characteristics of your installation, including the location of your home, number of windows, size, type, material and more.
It's also worth bearing in mind that energy-efficient windows will almost always cost more initially, but Energy Star estimates that upgrading the windows on your Waterbury home translates to an average energy savings of $236 to $319 per year for single-pane window replacement, or between $87 to $126 per year for double-pane windows. The amount of money you'll save by upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
We recommend getting free quotes from multiple window companies to find the right windows and the company that works best for you.
What Services do Window Installers Offer?
The first question to ask yourself when planning a window installation is: Do you need a full-frame installation or a pocket installation?
Full-frame installations entail replacing the complete window, including the frame, sill 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 damage or rot. Because full-frame installations are more involved, they will raise the total cost. A pocket installation means replacing a window without taking out the entire frame, which is usually less expensive than a full-frame installation.
Your window replacement company should be able to help you understand what's best for your needs. In Waterbury, the decision will mostly depend on how old your windows are and if there's any moisture damage. Wood can decay if it's not maintained properly over the years, so it's good to have a professional check your frames and window sills.
Best Affordability
Window World
- Low prices relative to competitors
- EnergyStar Partner
- Large serice area
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Low number of customer complaints
- Custom Designs
- Great industry reputation
- No lifetime warranty
How We Choose the Best Window Installers in Waterbury
The EcoWatch Reviews team is different from most reviewers since we're examining these companies through a sustainability lens. We've assessed the top window installers in Waterbury mostly based on energy efficiency, as it's the most sustainable option and the best one for homeowners. Energy Star certified windows can lower power bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
Because this is a guide for Waterbury, we gave more points to companies that cover the city. There are certainly other reputable providers that didn't make the list because they wouldn't be able to serve homeowners in Waterbury.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each installer included on this list to ensure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another very important review factor. If most customers don't have nice feedback about their service from a certain installer, it won't be featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers' prices, we gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a substantial investment, so you'll want to make sure that investment is protected. Window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a good track record in the industry. Window installation companies that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Waterbury, CT Window Replacement FAQs
How much should a window install cost?
The average cost of replacing one window ranges between $450 and $650. There are several factors that affect the price, including how energy-efficient the windows are, the materials used in designing the windows, local labor costs, styles and sizes of windows, the number of windows and your property's location.
Which kind of window should I get?
A window's energy efficiency is influenced by a variety of factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.
What services do window installation companies do?
Window installers will do the entire process — from replacing old windows with brand new ones to cleaning up afterward. In addition, a lot of companies offer window manufacturing, customization and repairs.
When is the best time of year to replace windows?
Replacement windows can be installed during any season, but warmer weather is typically better. Regardless of when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into your house, so the temperature outside isn't necessarily a big factor. Most importantly, the weather should be dry.
Should I replace my windows all at once?
If you're upgrading your windows to save on your energy bills, replacing all your windows at the same time is the only way to gain that benefit. On the other hand, if you have just one or two windows that are broken or drafty, you can replace just those.