21 Best Window Replacement Companies in Watertown, CT (2023 Reviews)
Window Companies Near Me
If you're looking to upgrade to new windows, our list of the best window installation companies can help.
We analyzed all the top window installers in Watertown and selected the top 21 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
Whether you're updating for style or have windows that need repairs, windows play a vital role in conserving your home's electricity. When it's the middle of winter, your outdated and leaky windows could be making your home more difficult to heat and more uncomfortable for you.
Replacement windows improve your home's insulation, not only making you more comfortable during extreme temperatures, but also saving you some money and helping the environment.
Unlike other review sites, EcoWatch ranks window replacement companies based on energy efficiency while also considering cost, customer satisfaction and service area.
Best Affordability
Window World
- EnergyStar Partner
- Low prices relative to competitors
- Large serice area
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Member of US Green Building Council
- Award-winning company
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Great industry reputation
- Custom Designs
- Low number of customer complaints
- No lifetime warranty
Best Window Replacement Companies in Watertown
The EcoWatch team evaluated dozens of installers in Watertown to find the best window companies for our readers. The providers mentioned in this article scored best in our review categories, which include energy-efficient offerings, availability, customer service, price, local expertise and more.

Window World
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EnergyStar Partner
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Low prices relative to competitors
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Large serice area
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Quality of service will depend on your area
Window World provides windows expertise in Watertown. Window World has about 27 years of experience in the window installation industry. Its reputation is backed by several positive reviews on customer review websites.
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 WindowsWindow World offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. 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 Watertown?While prices are not readily available on Window World's website, it's known for offering some of the most affordable window installations around. If you'd like more accurate information, you can inquire about a quote on the company's website.

Renewal by Andersen
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Manufactures products in-house
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Member of US Green Building Council
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Award-winning company
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No lifetime warranty
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement sector. Hundreds of positive reviews on customer review websites back the company's reputation.
You may want to consider choosing Andersen if you're interested in a installer that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. 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 Watertown?Andersen does not list prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you'd like more accurate pricing information, you can inquire about a quote on the company's website.

Aeroseal Windows
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Great industry reputation
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Custom Designs
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Low number of customer complaints
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No lifetime warranty
Aeroseal Windows provides the best window installation for businesses in Watertown. Aeroseal has around 23 years of experience in the industry, and it currently serves 13 states and Washington D.C.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want high-quality Energy Star windows when inquiring. 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 Watertown?Even though pricing is not available on Aeroseal's website, it provides high-quality windows at a competitive price point. For more accurate information on pricing, you can get a quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation offers the best residential windows in Watertown. This company has 16 years of experience in the windows industry, and it has established itself as one of the most respected companies in Watertown. Hundreds of positive reviews from customers online back the company'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, this may be the provider for you.
Energy Efficiency of Window Nation WindowsThere are a wide variety of window types available from Window Nation, some of which are Energy Star products. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Watertown?Window Nation doesn't have any pricing information displayed on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. You can inquire about a free quote on its website for more information about the cost.
Please note that the following companies are national, which means the quality of customer service may depend on your local team. We have tried to remain unbiased and transparent by mentioning both pros and cons for every company.
More Window Replacement Companies in Watertown
Renewal by Andersen - Branford
Branford, CT-
Consistent Workmanship
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Locally Recognized for Quality
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Custom Windows
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
TL Home Improvement LLC
Shelton, CT-
Reliable Appointment Windows
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No-fee Quotes
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Locally Recognized for Quality
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Excellent Customer 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 Windows
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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-
No-fee Quotes
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Arrives on Time
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Price Transparency
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Helps Educate Customers
Services Offered
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Residential Windows
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Custom Windows
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Nu-Face Home Improvements
Plantsville, CT-
Price Transparency
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Timely Service
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Good Customer Service
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Helps Educate Customers
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-
Reliable Appointment Windows
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Dependable Service
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Price Transparency
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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 Window Designs
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Residential Windows
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Business Windows
Advanced Window Systems LLC
Cromwell, CT-
Helps Educate Customers
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Excellent Customer Service
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Reliable Appointment Windows
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Price Transparency
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Eastern Glass & Shower Door
Milford, CT-
No-Hassle Pricing
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Free Quotes
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Good Customer Service
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Educational Website
Services Offered
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Doors
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Full-Service Installations
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Custom Windows
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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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Timely Service
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Price Transparency
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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-
Excellent Customer Service
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Locally Recognized for Quality
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Dependable Service
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No-fee Quotes
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-
Good Customer Service
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Consistent Workmanship
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Award-Winning
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No-fee Quotes
Services Offered
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Residential Windows
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Commercial Windows
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Full-Service Installations
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Custom Windows
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Excellent Customer Service
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Free Quotes
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Consistent Workmanship
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Educational Website
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
Good Customer Service
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Reliable Appointment Windows
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Free Quotes
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Educational Website
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-
Good Customer Service
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Consistent Workmanship
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Educational Website
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Reliable Appointment Windows
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Capitol Glass Co Inc
West Hartford, CT-
Excellent Customer Service
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Educational Website
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Price Transparency
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Free Quotes
Services Offered
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Residential Windows
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Architectural Glass
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Doors
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial 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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No-fee 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 Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
Good Customer Service
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Helps Educate Customers
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No-Hassle Pricing
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Award-Winning
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 Window Designs
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Commercial Windows
Villwell Builders, LLC
Waterbury, CT-
No-Hassle Pricing
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Excellent Customer Service
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Reliable Service
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Award-Winning
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Price Transparency
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No-fee Quotes
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Excellent Customer Service
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Reliable Service
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay Windows
Wallingford Glass
Wallingford, CT-
Price Transparency
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Excellent Customer Service
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Dependable Service
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Free Quotes
Services Offered
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Residential Windows
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Tempered Glass
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Doors
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Stained Glass
Ring's End
Branford, CT-
Good Customer Service
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Helps Educate Customers
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Price Transparency
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Free Quotes
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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No-Hassle Pricing
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No-fee Quotes
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Educational Website
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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Commercial Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
How Installing Energy-Efficient Windows in Watertown Saves You Money
By switching to energy-efficient windows, you and your family can take advantage of several benefits, such as:
- Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Updating your windows can make your home more comfortable and also help increase the value of your house if you decide to sell.
- Decrease your carbon footprint: In Watertown, you can lower your indirect greenhouse gas emissions by about 147 pounds per year when you upgrade to energy-efficient windows.
- Save on energy bills: Switching to energy-efficient windows reduces your energy bills by about 12% since you need less energy.
- Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out harmful UV rays.
Estimated Cost of Window Replacement in Watertown
Each window installer provides varying services and has varying prices based on a few factors.
How Much Do New Windows Cost?
According to our research, the average cost of installing a single window is around $600. However, window installation costs can range from $200 to $1,200 a window. But costs vary considerably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also provide door installations, which will add extra costs to your project.
It's important to note that windows with the best 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 Watertown homeowners $486+ a year when replacing single-pane windows.
Requesting free quotes from multiple companies is the best way to find out which one is right for you.
What Services do Window Installers Offer?
The first question to ask yourself when considering a window replacement is: Should you get a full-frame installation or a pocket installation?
A full-frame installation is a replacement of the total window. It involves taking out the old window, the windowsill, and the exterior and interior trim. It also involves other materials, such as insulation and drip edges, which raise the overall cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. Pocket installations (or retrofits) entail replacing a window within the existing frame, which makes pocket installations more simple and affordable. However, if the frame has any damage or rot, you will likely need a full-frame installation instead.
If you're still debating which kind of installation to get, you can consult with your provider and get their advice. The choice mostly is influenced by how old the frames are and if there's any damage present.
Best Affordability
Window World
- EnergyStar Partner
- Low prices relative to competitors
- Large serice area
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Member of US Green Building Council
- Award-winning company
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Great industry reputation
- Custom Designs
- Low number of customer complaints
- No lifetime warranty
How We Choose the Best Window Installers in Watertown
The EcoWatch Reviews team is different from other reviewers because we look at these companies through a sustainability lens. Along with energy efficiency, we assessed several window installers in Watertown and ranked them using the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve the Watertown area so you can find a quality window installation company near you.
Work Quality
We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer included in our guide to make sure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent customer feedback to determine the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across nearly every category, including warranty, quality of parts, cost, professionalism, quality of installation and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing the prices of providers, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed, windows are a substantial investment, so you'll want to be certain that investment is protected. Window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a good track record in the industry. Window installers that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.
Watertown, CT Window Replacement FAQs
How much does window installation cost?
The typical cost of installing a window ranges between $450 and $650. There are many factors that influence how much it costs, such as your property's location, how energy-efficient the windows are, the number of windows, local labor costs, styles and sizes of windows and the materials used in designing the windows.
What are the most common types of replacement windows?
The most common kinds of windows for homes include: awning windows, casement windows, slider windows, double-hung and single-hung windows, picture windows, bay windows and transom windows.
What services do window replacement companies offer?
Window installation professionals travel to your home to remove your old windows and replace them with new ones. Some companies install products distributed by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is complete.
How long does window installation take?
Each window takes around 30 minutes to install depending on the type of window. However, the window installation can take two days or more if you have a lot of windows that need to be installed.
How often do you need to replace your windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, they should probably be replaced. Other than that, if your windows have damage anywhere on them, or they have become difficult to open or close, they may need to be replaced.