26 Best Window Replacement Companies in Stonington, CT (Feb 2023)
Window Companies Near Me
Are you thinking of upgrading your windows? Our guide to the top window installation companies can help you choose the right one for you.
We analyzed all the top window installers in Stonington and selected the top 26 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 January 12, 2023
Why you can trust EcoWatch
Whether you're doing renovations or have windows that need repairs, windows play a key role in conserving your home's electricity. The Department of Energy estimates that heat gained or lost through outdated or drafty windows could account for around 30% of heating and cooling costs. In Stonington, where the electric bills are an average of $36 per month, that's almost $$130 per year wasted.
That's bad for your bank account and the environment, but one of the best window installation companies can help you with that.
Because windows are so important for your home, choosing the right company for you is a big choice to make. That's why the EcoWatch team has put together this list of the best window installation companies, so you can more easily make an informed decision.
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Manufactures products in-house
- Member of US Green Building Council
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Manufactures products in-house
- Low number of customer complaints
- Custom Designs
- Not ideal for residential installations
Best Window Replacement Companies in Stonington
The EcoWatch team examined dozens of installers across the country to find the best window companies for our readers. The companies we've mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, price, customer service and beyond.

Window World
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EnergyStar Partner
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Lifetime warranty
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Low prices relative to competitors
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Quality of service will depend on your area
Window World provides windows expertise in Stonington. This provider has 27 years of experience in the windows business, and it has established itself as one of the most respected companies in Stonington. Its reputation is backed by all the positive reviews on customer review websites.
It has established itself as a company 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 WindowsWindow World's commitment to sustainability shows in its energy-efficient window offerings. 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 Stonington?Prices aren't mentioned on Window World's website, but it's known for offering some of the most affordable window installations around. For more accurate information on the cost, you can inquire about a quote from the company.

Renewal by Andersen
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Award-winning company
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Manufactures products in-house
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Member of US Green Building Council
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More expensive than competition
Renewal by Andersen has the best availability in Stonington. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has about 27 years of experience in the window installation sector.
If you're looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner offering a variety of energy-efficient windows that are Energy Star certified. Note that not all of the company's windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Stonington?While pricing is not readily available on Andersen's website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you'd like to know for sure, you can inquire about a quote on the company's website.

Aeroseal Windows
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Manufactures products in-house
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Low number of customer complaints
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Custom Designs
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Not ideal for residential installations
Aeroseal Windows has the best window installation for businesses in Stonington. 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 provider has 23 years of experience in the window installation business, and it has proved to be one of the most respected companies in Stonington. Its reputation is backed by many positive reviews on customer review websites.
If you're looking for a company that installs windows and doors at businesses across the Eastern U.S, this may be the right company for you.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows' commitment to sustainability can be seen in its energy-efficient window offerings. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in Stonington?Pricing information is not available on Aeroseal's website because the cost of window replacement depends on how many and what type(s) of windows you need. However, it provides high-quality windows at a competitive price point. If you'd like more accurate pricing information, you can get 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. Window Nation has been in the window business for about 16 years. Many positive reviews from customers online back the provider's reputation.
Window Nation may be the company for you if you're looking for one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsEach 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. Not all of Window Nation's offerings are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Window Nation cost in Stonington?Window Nation doesn't have any cost information available 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. If you'd like more accurate pricing information, you can inquire about a quote on the company's website.
We try to remain unbiased and transparent by including pros and cons for each company we review. Additionally, our rankings are not affected by any partnerships.
More Window Replacement Companies in Stonington
United Glass & Mirror Co
Bozrah, CT-
Excellent Customer Service
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Price Transparency
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Helps Educate Customers
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Locally Recognized for Quality
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Heavy Glass
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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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Sliding Glass
Mr. Handyman of Norwich, New London and Glastonbury
Norwich, CT-
Dependable Service
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No-Hassle Pricing
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Timely Service
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No-fee Quotes
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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Double-Hung
Clinton Glass
Clinton, CT-
No-Hassle Pricing
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Helps Educate Customers
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Free Quotes
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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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Commercial Windows
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Sliding Glass
Thomas Garbati Builders, LLC
Waterford, CT-
Timely 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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Custom Window Designs
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Residential Windows
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Double-Hung
Henderson Roofing
Westerly, RI-
Educational Website
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No-Hassle Pricing
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Consistent Workmanship
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Good Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Full-Service Installations
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Business Windows
Window Wizards
Pawcatuck, CT-
Excellent Customer Service
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No-fee Quotes
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Reliable Service
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Educational Website
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
The Siding Store, Inc
Plainfield, CT-
Reliable Appointment Windows
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Good Customer Service
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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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Energy-Efficient Options
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Sliding Glass
Handyman Services of CT LLC
Niantic, CT-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Sliding Glass
Glass America
7+ years in business · Westerly, RI-
Excellent Customer Service
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Timely Service
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Locally Recognized for Quality
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Free Quotes
Services Offered
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Custom Window Designs
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Commercial Windows
Christopher Home Improvement
Norwich, CT-
Excellent Customer Service
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Reliable Appointment Windows
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Helps Educate Customers
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No-fee Quotes
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 & Doors
Newport, RI-
Free Quotes
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Reliable Service
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Excellent Customer Service
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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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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay Windows
Wallace Design Center
Southold, NY-
No-fee Quotes
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Dependable Service
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Good Customer Service
Services Offered
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Residential Windows
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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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Business Windows
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Sliding Glass
The Roofing Store LLC
Plainfield, CT-
No-Hassle Pricing
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Excellent Customer Service
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Educational Website
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Award-Winning
Services Offered
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Custom Windows
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Residential Windows
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Aluminum Window Frames
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Business Windows
Expressway Roof Leaks and Siding Repair
East Hampton, NY-
Reliable Service
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Good Customer Service
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Custom Window Designs
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Residential Windows
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Full-Service Installations
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Commercial Windows
Pella Windows & Doors of Newport
Bellevue Ave, RI-
No-Hassle Pricing
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Free Quotes
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Educational Website
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Good Customer Service
Services Offered
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Architectural Glass
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Humphrey's Window & Door Design
Middletown, RI-
Price Transparency
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Dependable Service
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Helps Educate Customers
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Free Quotes
Services Offered
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Custom Window Designs
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Fast Delivery
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Architectural Glass
J&J Rivera Home Improvement and Supply CO
Old Saybrook, CT-
Reliable Service
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Reliable Appointment Windows
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No-Hassle Pricing
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
Danielson Glass & Mirror
Brooklyn, CT-
Free Quotes
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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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Glass Showers
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Custom Window Designs
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Full-Service Installations
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Business Windows
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Sliding Glass
Pane In The Glass
Westerly, RI-
Good Customer Service
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Consistent Workmanship
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Price Transparency
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No-fee Quotes
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
Murphy's Building & Remodeling
Hebron, CT-
Supports Charities
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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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Custom Window Designs
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Residential Windows
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Commercial Windows
Home Services at The Home Depot
Middletown, RI-
Educational Website
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Excellent Customer Service
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No-Hassle Pricing
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Consistent Workmanship
Services Offered
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Custom Windows
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Fast Delivery
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Commercial Windows
ICOR Building & Remodeling
Mystic, CT-
Excellent Customer Service
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Consistent Workmanship
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Free Quotes
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Timely Service
Services Offered
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Custom Windows
Robert E Otto Glass Inc.
Wainscott, NY-
Helps Educate Customers
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No-fee Quotes
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Architectural Glass
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Sliding Glass
Kent County Glass
Coventry, RI-
Educational Website
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Free Quotes
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Doors
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Custom Windows
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Residential Windows
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Commercial Windows
Columbia Glass Inc
Columbia, CT-
No-Hassle Pricing
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Good Customer Service
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Consistent Workmanship
Services Offered
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Tempered Glass
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Sliding Glass
Creative Enclosures
Bozrah, CT-
Helps Educate Customers
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Free Quotes
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No-Hassle Pricing
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Supports Charities
Services Offered
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Custom Window Designs
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Double-Hung
How Installing Energy-Efficient Windows in Stonington Saves You Money
There are several benefits of upgrading to energy-efficient windows. A few reasons you may want to consider making the switch include the following:
- Save money on electricity bills: After you install energy-efficient windows, you can see a reduction in your bills by about 12% since you'll need less energy to heat or cool your home.
- Protect your investment: When you have an older home, your windows could also be outdated or leaky. Upgrading your windows is an important part of maintaining your property and its real estate value.
- Decrease your carbon footprint: By using less energy once upgrading to energy-efficient windows, you'll also be reducing your carbon dioxide emissions by about 12%, according to Energy Star.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only insulate your home better, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
Estimated Cost of Window Replacement in Stonington
Windows come in various shapes, purposes and styles, so costs and services will vary tremendously based on several factors. Below, we describe the typical cost and services that you'll find from window installation companies.
How Much Do New Windows Cost?
According to our market research, the average cost of installing a single window is about $600. However, window replacement costs can range from $200 to $1,200 per window. How much it will cost you depends on several factors, including number of windows, type, the location of your home, material, size and more.
It's also worth noting that energy-efficient windows will usually cost more initially, but Energy Star estimates that switching out the windows on your Stonington home can mean an average energy savings of $236 to $319 each year for single-pane window replacement, or between $87 to $126 each year for double-pane windows. The amount of money you'll save by switching to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Requesting free quotes from several companies is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
There are generally two types of window installation services: full-frame and pocket installations.
A full-frame installation is a total window replacement. It involves taking out the old window, the sill, and the exterior and interior trim. It can also involve extra 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 (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are on the simpler end and won't carry as large a bill, but you can't do this type of installment if you have any pre-existing rot or water damage.
If you're still trying to decide which kind of installation to get, you can talk to your provider and get their advice. The choice mostly depends on how old the frames are and if there's any damage.
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Low prices relative to competitors
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Award-winning company
- Manufactures products in-house
- Member of US Green Building Council
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Manufactures products in-house
- Low number of customer complaints
- Custom Designs
- Not ideal for residential installations
How We Choose the Best Window Installers in Stonington
In our search to make your home improvements easier and more eco-friendly in Stonington, the EcoWatch Reviews team landed on the above companies as the top window installation companies in the city. Along with energy efficiency, we reviewed window companies all across the state and ranked them using the following methodology:
Service Area
Since this is a guide for Stonington, we gave more points to companies that provide services to the city. There are certainly reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in Stonington.
Work Quality
We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each company included in our guide to ensure its technicians 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 super important review factor. If the majority of customers don't have positive feedback about their experience with a certain installer, you won't see it featured on EcoWatch.
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 gave higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. That's why window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Stonington's climate, homeowners will want to mitigate rot, low efficiency and water damage. We factored in local experience to reflect the ability of Stonington window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Stonington, CT Window Replacement FAQs
What is the average cost to install new windows?
The average cost of replacing a window can range between $450 and $650. There are several factors that affect how much it costs, such as local labor costs, the number of windows, the materials used in designing the windows, styles and sizes of windows, your property's location and how energy-efficient the windows are.
Which type of window is the best?
A window's energy efficiency depends on a variety of factors, including the quality of the installation and what kind of window it is. 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 replacement companies provide?
Window installation professionals cover the entire process — from replacing old windows with brand new ones to cleaning up after the installation. Additionally, many companies offer window manufacturing, customization and repairs.
How long does it generally take to install windows?
Since a window takes about 30 minutes to install, around 16 windows can be installed in a typical 8-hour work day.
When is the best time of year to replace windows?
Even though you can install windows any time of year, warmer weather is generally better for replacing windows. Additionally, the weather should be dry, since rain can make the installation harder.