28 Best Window Replacement Companies in Stonington, CT (2023 Reviews)
Window Companies Near Me
If you're thinking about upgrading to new windows, our guide to the top window installation companies can help.
We analyzed all the top window installers in Stonington and selected the top 28 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated May 04, 2023
Why you can trust EcoWatch
A guide on the top window installation companies in Stonington may not seem like the most interesting article on the EcoWatch site, but trust us, windows have more of an impact on your life than you might think. The Department of Energy estimates that heat gained or lost through traditional or outdated windows could account for nearly 30% of residential energy climate usage. In Stonington, where the electric bills are an average of $36 per month, that's almost $$130 per year wasted.
Thankfully, helping you save energy with more efficient windows also helps our goals of conserving energy and the resources it takes to make it.
So if you're building a new home, renovating or changing out old windows in Stonington, this guide is the best place to get started.
Best Affordability
Window World
- Lifetime warranty
- EnergyStar Partner
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Custom Designs
- Low number of customer complaints
- Great industry reputation
- No lifetime warranty
Best Window Replacement Companies in Stonington
The EcoWatch team evaluated several window installation companies across Stonington to narrow our list down to the top ones. The installers in this article scored best in our categories: energy-efficient offerings, availability, customer service, price and more.

Window World
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Lifetime warranty
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EnergyStar Partner
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Great industry reputation
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Quality of service will depend on your area
Window World is the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has over 27 years of experience in the industry, and it currently provides services to 200 locations nationwide. Hundreds of positive reviews on customer review websites back the company's reputation.
You may want to consider choosing Window World if you're looking for a installer 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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's windows are Energy Star certified, so make sure you mention that you're interested in Energy Star windows when inquiring.
How much does Window World cost in Stonington?Window World doesn't have any cost information available on its website, but it's known for offering some of the most affordable window installations around. If you'd like to know for sure, you can ask for a quote on the company's website.

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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More expensive than competition
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 installation sector. Many positive reviews on customer review websites back the provider's reputation.
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 WindowsRenewal by Andersen's commitment to sustainability can be seen in its energy-efficient window offerings. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Stonington?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. For more accurate information on pricing, you can receive a quote from the company.

Aeroseal Windows
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Custom Designs
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Low number of customer complaints
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Great industry reputation
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No lifetime warranty
Aeroseal Windows offers the best window installation for businesses in Stonington. Aeroseal has been in the window business for around 23 years. The provider has a lot of glowing reviews from customers on online review websites.
You may want to consider opting for Aeroseal if you're interested in a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows appeals to eco-conscious consumers by providing energy-efficient window offerings. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in Stonington?Aeroseal does not display prices on its website, but it provides high-quality windows at a competitive price point. If you'd like to know for sure, 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 has the best residential windows in Stonington. This window installation company has been in business since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states.
It 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 mention that you want 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 Stonington?Window Nation does not list prices on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. Getting a free quote on its website is the best way to know for sure.
One thing to note is that the companies in this section are national, which means the quality of the service may depend on your local team. We have tried to be unbiased and transparent by mentioning both pros and cons for each provider.
More Window Replacement Companies in Stonington
BP Builders | Roofer, Roof Replacement, Roofing Company & General Contractor CT
Waterford, CT-
Educational Website
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Price Transparency
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Award-Winning
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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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Fast Delivery
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Aluminum Window Frames
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
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Glass Showers
Henderson Roofing
Westerly, RI-
Good Customer Service
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Free assessment
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Award-Winning
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Full-Service Installations
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Sliding Glass
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Residential Windows
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Commercial Windows
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Stained Glass
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Glass Showers
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Fast Delivery
Krystal Glass & Door Co
Smithfield, RI-
Timely Service
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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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Sliding Glass
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Double-Hung
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Glass Showers
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Fast Delivery
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Commercial Windows
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Aluminum Window Frames
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Custom Window Designs
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Residential Windows
Window World of Hartford
Manchester, CT-
Timely Service
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Free assessment
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Price Transparency
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Award-Winning
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Educational Website
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Good Customer Service
Services Offered
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Sliding Glass
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Commercial Windows
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Double-Hung
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Fast Delivery
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Bay Windows
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Custom Window Designs
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Residential Windows
Turner Home Improvement Contractors, LLC
Glastonbury, CT-
Price Transparency
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Educational Website
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Timely Service
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Good Customer Service
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Free assessment
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Award-Winning
Services Offered
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Double-Hung
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Custom Window Designs
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Full-Service Installations
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Commercial Windows
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Residential Windows
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Fast Delivery
Advanced Window Systems LLC
Cromwell, CT-
Price Transparency
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Timely Service
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Custom Window Designs
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Bay Windows
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Double-Hung
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Sliding Glass
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Glass Showers
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Energy-Efficient Options
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Residential Windows
United Better Homes
Pawtucket, RI-
Timely Service
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Educational Website
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Price Transparency
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Award-Winning
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Good Customer Service
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Free assessment
Services Offered
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Full-Service Installations
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Commercial Windows
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Custom Window Designs
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Sliding Glass
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Double-Hung
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Residential Windows
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Fast Delivery
Pella Windows
RI, RI-
Award-Winning
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Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Fast Delivery
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Sliding Glass
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Custom Window Designs
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Commercial Windows
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Stained Glass
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Residential Windows
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Glass Showers
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Double-Hung
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Bay Windows
Window World of Rhode Island
Warwick, RI-
Educational Website
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Award-Winning
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Custom Window Designs
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Bay Windows
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Sliding Glass
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Residential Windows
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Fast Delivery
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Double-Hung
Mr. Handyman of Norwich, New London and Glastonbury
Norwich, CT-
Timely Service
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Free assessment
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Award-Winning
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Commercial Windows
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Glass Showers
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Double-Hung
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Residential Windows
The Window Source RI
Smithfield, RI-
Timely Service
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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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Residential Windows
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Bay Windows
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Sliding Glass
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Double-Hung
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Energy-Efficient Options
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Custom Window Designs
Home Services at The Home Depot
Providence, RI-
Free assessment
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Fast Delivery
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Double-Hung
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Bay Windows
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Commercial Windows
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Residential Windows
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Glass Showers
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Stained Glass
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Aluminum Window Frames
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Custom Window Designs
Home Services at The Home Depot
Waterford, CT-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Custom Window Designs
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Fast Delivery
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Sliding Glass
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Glass Showers
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Commercial Windows
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Double-Hung
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Bay Windows
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Stained Glass
Clinton Glass
Clinton, CT-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
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Award-Winning
Services Offered
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Sliding Glass
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Residential Windows
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Fast Delivery
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Glass Showers
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Commercial Windows
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Custom Window Designs
New England Glass & Mirror Company
Norwich, CT-
Price Transparency
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Good Customer Service
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Award-Winning
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Educational Website
Services Offered
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Commercial Windows
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Sliding Glass
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Double-Hung
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Full-Service Installations
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Glass Showers
Little Rhody Window Installation
Providence, RI-
Educational Website
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Timely Service
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Free assessment
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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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Bay Windows
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Double-Hung
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Sliding Glass
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Custom Window Designs
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Glass Showers
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Commercial Windows
Creative Enclosures
Bozrah, CT-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Glass Showers
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Custom Window Designs
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Fast Delivery
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Double-Hung
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Residential Windows
Allstate Windows
Rocky Hill, CT-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Commercial Windows
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Double-Hung
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Residential Windows
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Bay Windows
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Custom Window Designs
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Aluminum Window Frames
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Fast Delivery
Pella Windows & Doors of Seekonk
Seekonk, MA-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Double-Hung
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Custom Window Designs
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Residential Windows
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Bay Windows
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Sliding Glass
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Commercial Windows
Central Falls Glass Co Inc
Central Falls, RI-
Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Double-Hung
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Glass Showers
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Commercial Windows
B&R Home Improvement
Pawtucket, RI-
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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Double-Hung
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Residential Windows
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Commercial Windows
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Glass Showers
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Custom Window Designs
Fagan Door Systems
Coventry, RI-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Double-Hung
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Aluminum Window Frames
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Custom Window Designs
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Stained Glass
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Residential Windows
ALG Window & Glass
Providence, RI-
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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Commercial Windows
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Glass Showers
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Aluminum Window Frames
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Custom Window Designs
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Stained Glass
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Residential Windows
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Fast Delivery
North Shore Window Inc.
Bridgehampton, NY-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
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Award-Winning
Services Offered
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Residential Windows
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Double-Hung
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Fast Delivery
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Custom Window Designs
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Aluminum Window Frames
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Commercial Windows
Home Services at The Home Depot
700 Centre Of NE Blvd, RI-
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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Custom Window Designs
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Glass Showers
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Fast Delivery
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Bay Windows
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Residential Windows
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Stained Glass
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Commercial Windows
Home Services at The Home Depot
Uncasville, CT-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Commercial Windows
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Stained Glass
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Glass Showers
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Bay Windows
Providence Glass & Mirror, LLC
Providence, RI-
Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Glass Showers
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Residential Windows
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Sliding Glass
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Commercial Windows
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Custom Window Designs
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Fast Delivery
Sears Heating and Air Conditioning
Fall River, MA-
Good Customer Service
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Educational Website
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Free assessment
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Award-Winning
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Price Transparency
Services Offered
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Stained Glass
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Custom Window Designs
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Glass Showers
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Residential Windows
How Installing Energy-Efficient Windows in Stonington Saves You Money
When you switch to energy-efficient windows, you may see some benefits, such as:
- Decrease your carbon footprint: Decreasing how much energy you use also lowers your carbon emissions. You could reduce it by about 147 pounds.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its value, especially if your home is on the older side.
- Save on energy bills: The Department of Energy estimates that heat gained or lost through windows makes up around 25-30% of energy use in your home. Installing energy-efficient windows can help decrease that number, which helps you save $424 a year on your bills.
Estimated Cost of Window Replacement in Stonington
Windows come in all shapes and sizes, so costs and services will differ remarkably. Here are the typical costs and services that you'll find from the average window installation company.
How Much Do New Windows Cost?
According to our research, the typical cost to install a single window is about $600. However, window installation costs can range from $200 to $1,200 for each window. But costs vary remarkably depending 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 and replacements, which carry a higher price tag.
Keep in mind that energy-efficient windows may come at a higher price tag, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. These savings vary depending on your local climate, energy rates and individual home characteristics.
Getting free quotes from multiple providers is the best way to find out which one is right for you.
What Services do Window Installers Offer?
The first step of a window installation is to figure out whether you want a full-frame or pocket installation.
A full-frame installation replaces the total window, such as the sill, frame, trim and the window panes. Because this kind of installation requires more time, it will cost more than a pocket installation. Pocket installations are simpler and won't carry as large a bill because they involve simply replacing the window within its existing frame. But if the frame has any damage, you should opt for a full-frame installation instead.
Your window installation company should be able to help you decide which type of installation you should get.
Best Affordability
Window World
- Lifetime warranty
- EnergyStar Partner
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Manufactures products in-house
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Custom Designs
- Low number of customer complaints
- Great industry reputation
- No lifetime warranty
How We Choose the Best Window Installers in Stonington
In our hunt to find the most reliable, eco-friendly window installers in Stonington, the EcoWatch Reviews team chose the above companies as the top window installation companies in the city. We have reviewed the top window installers in Stonington mainly based on their energy efficient offerings, as it's the most sustainable option and the best one for homeowners. Energy-efficient windows can lower energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is self-explanatory, but we've chosen to highlight window installers that serve Stonington so you can find a quality window installation company near you.
Work Quality
When selecting new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the brand of window you get. We do give window installers higher marks if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If most customers don't have nice feedback about their service from a certain window installation company, it won't be featured on EcoWatch.
Cost
This one is a give-and-take: similar to other services, cheap window companies may not provide the highest quality service. On the other hand, we want to make sure we're highlighting companies that provide a spectrum of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a serious investment, so you'll want to make sure that investment is well protected. Window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have been in the industry for quite some time. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Stonington, CT Window Replacement FAQs
What is the average cost to replace windows?
The average cost to install one window can range from $450 to $650. There are many factors that affect how much it costs, including your property's location, styles and sizes of windows, the materials used in designing the windows, how energy-efficient the windows are, the number of windows and local labor costs.
Which type of window should I get?
Generally, double-pane windows are 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'll have the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — they're certified energy-efficient by the U.S. Department of Energy.
Can you replace your own windows?
If you're handy and know how to replace a window, it's possible to install your own windows. However, if you don't have the time or skills, we recommend hiring a professional.
How long does it typically take to install windows?
Because a window takes about 30 minutes to install, around 16 windows can be installed during an 8-hour work day.
What time of year is the best time to replace my windows?
Even though you can install windows any time of year, warmer weather is typically better for installing replacement windows. Additionally, it shouldn't be raining, since rain can make the installation more difficult.