22 Best Window Replacement Companies in Groton, CT (2023 Reviews)
Window Companies Near Me
When it's time to upgrade your windows, our list of the best window installation companies can help you find the right provider for you.
We analyzed all the top window installers in Groton and selected the top 22 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
The EcoWatch team is all about finding solutions for eco-conscious homeowners in Groton. According to the Department of Energy, heat or cool air lost through traditional, outdated windows could be responsible for 25-30% of household energy climate control costs.
Replacement windows improve the insulation in your home, not only making you and your family more comfortable during extreme temperatures, but also saving you some money and helping the environment.
So if you're building a new home, renovating or updating your windows in Groton, this guide is the best place to get started.
Best Affordability
Window World
- Lifetime warranty
- Large serice area
- EnergyStar Partner
- 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 Residential Windows
Window Nation
- Manufactures products in-house
- Award-winning company
- Custom designs
- Installation not covered by warranty
Best Window Replacement Companies in Groton
The EcoWatch Reviews team researched many window providers across Groton to narrow our list down to the best ones. We assessed the providers on their energy-efficient offerings, coverage area, customer service, local experience, price and more.

Window World
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Lifetime warranty
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Large serice area
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EnergyStar Partner
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Quality of service will depend on your area
Window World has windows expertise in Groton. This window installation company has been operating since 1995 and currently provides services to 200 locations nationwide. The provider has plenty of glowing reviews from customers online.
You may want to consider picking Window World if you're looking for 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 is an Energy Star partner and offers 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 ask your Window World representative when inquiring about services.
How much does Window World cost in Groton?Window World doesn't have any prices available on its website, but it's known for offering some of the most affordable window installations around. For more detailed 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 is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This provider has 27 years of experience in the window installation industry, and it has established itself as one of the most reputable companies in Groton. Its reputation is backed by many positive reviews on customer review websites.
It has established itself as a company 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 WindowsA 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. Not all of Andersen's windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Groton?Andersen does not outline 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 get a quote from the company.

Window Nation
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Manufactures products in-house
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Award-winning company
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Custom designs
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Installation not covered by warranty
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This company has been in business since 2006 and currently serves residents within 75 miles of its showrooms, which are in 13 states. The provider has plenty of positive reviews from customers on online review websites.
It has established itself as a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality 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 Groton?Prices aren't listed on Window Nation's website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. The best way to know for sure is to ask for a free quote from the company.

Aeroseal Windows
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Many years of experience
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Great industry reputation
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Low number of customer complaints
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Manufactures products in-house
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Custom Designs
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No lifetime warranty
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Not ideal for residential installations
Aeroseal Windows has the best window installation for businesses in Groton. It's an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has been in the window business for around 23 years.
You may want to consider going with Aeroseal if you're looking for a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more. Not all of Aeroseal's windows are Energy Star certified, so be sure to mention that you'd like Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Groton?Prices aren't available on Aeroseal's website, but it provides high-quality windows at a competitive price point. The best way to get more accurate information is to request a free quote from the company.
We aim to remain unbiased and transparent by including pros and cons for each installer. Additionally, any partnerships do not influence our rankings.
More Window Replacement Companies in Groton
BP Builders | Roofer, Roof Replacement, Roofing Company & General Contractor CT
Waterford, CT-
Free assessment
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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
Services Offered
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Double-Hung
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Commercial Windows
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Sliding Glass
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Aluminum Window Frames
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Fast Delivery
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Glass Showers
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Custom Window Designs
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Residential Windows
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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Glass Showers
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Custom Window Designs
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Commercial Windows
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Fast Delivery
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Sliding Glass
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Full-Service Installations
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Stained Glass
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Residential Windows
Window World of Hartford
Manchester, CT-
Educational Website
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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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Award-Winning
Services Offered
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Residential Windows
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Sliding Glass
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Fast Delivery
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Bay Windows
Turner Home Improvement Contractors, LLC
Glastonbury, CT-
Good Customer Service
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Timely Service
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Educational Website
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Free assessment
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Price Transparency
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Award-Winning
Services Offered
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Commercial Windows
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Double-Hung
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Fast Delivery
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Custom Window Designs
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Full-Service Installations
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Residential Windows
Advanced Window Systems LLC
Cromwell, CT-
Educational Website
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Timely Service
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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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Sliding Glass
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Glass Showers
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Residential Windows
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Bay Windows
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Energy-Efficient Options
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Custom Window Designs
Window Nation
Wallingford, CT-
Educational Website
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Award-Winning
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Bay Windows
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Stained Glass
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Double-Hung
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Energy-Efficient Options
Pella Windows
RI, RI-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
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Award-Winning
Services Offered
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Custom Window Designs
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Bay Windows
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Glass Showers
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Sliding Glass
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Double-Hung
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Residential Windows
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Stained Glass
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Commercial Windows
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Fast Delivery
Tri-State Window Factor Corporation
Hartford, CT-
Free assessment
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Good Customer Service
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Award-Winning
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Price Transparency
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Educational Website
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Timely Service
Services Offered
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Fast Delivery
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Commercial Windows
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Residential Windows
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Double-Hung
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Custom Window Designs
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Bay Windows
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Sliding Glass
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Glass Showers
Window World of Rhode Island
Warwick, RI-
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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Bay Windows
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Double-Hung
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Sliding Glass
Mr. Handyman of Norwich, New London and Glastonbury
Norwich, CT-
Price Transparency
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Free assessment
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Educational Website
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Award-Winning
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Timely Service
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Good Customer Service
Services Offered
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Residential Windows
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Double-Hung
Home Services at The Home Depot
Waterford, CT-
Educational Website
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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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Glass Showers
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Residential Windows
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Custom Window Designs
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Bay Windows
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Commercial Windows
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Stained Glass
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Double-Hung
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Fast Delivery
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Sliding Glass
Clinton Glass
Clinton, CT-
Good Customer Service
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Price Transparency
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Educational Website
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Award-Winning
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Free assessment
Services Offered
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Glass Showers
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Fast Delivery
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Commercial Windows
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Custom Window Designs
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Sliding Glass
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Residential Windows
New England Glass & Mirror Company
Norwich, CT-
Good Customer Service
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Price Transparency
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Award-Winning
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Educational Website
Services Offered
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Glass Showers
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Residential Windows
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Fast Delivery
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Sliding Glass
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Double-Hung
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Commercial Windows
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Full-Service Installations
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Custom Window Designs
Advanced Performance Glass Inc
East Hartford, CT-
Price Transparency
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Good Customer Service
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Educational Website
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Timely Service
Services Offered
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Commercial Windows
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Custom Window Designs
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Full-Service Installations
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Fast Delivery
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Residential Windows
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Double-Hung
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Aluminum Window Frames
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Energy-Efficient Options
NEWPRO
Unit 2, CT-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Glass Showers
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Fast Delivery
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Residential Windows
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Commercial Windows
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Custom Window Designs
Creative Enclosures
Bozrah, CT-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Double-Hung
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Fast Delivery
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Custom Window Designs
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Glass Showers
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Residential Windows
Allstate Windows
Rocky Hill, CT-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Aluminum Window Frames
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Residential Windows
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Fast Delivery
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Custom Window Designs
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Bay Windows
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Commercial Windows
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Double-Hung
Wallingford Glass
Wallingford, CT-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Tempered Glass
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Fast Delivery
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Commercial Windows
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Stained Glass
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Custom Window Designs
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Glass Showers
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Double-Hung
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Residential Windows
CT Tint
Meriden, CT-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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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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Sliding Glass
Home Services at The Home Depot
Berlin, CT-
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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Stained Glass
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Commercial Windows
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Bay Windows
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Glass Showers
Fagan Door Systems
Coventry, RI-
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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Aluminum Window Frames
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Stained Glass
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Custom Window Designs
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Double-Hung
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Residential Windows
North Shore Window Inc.
Bridgehampton, NY-
Price Transparency
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Award-Winning
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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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Fast Delivery
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Custom Window Designs
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Aluminum Window Frames
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Residential Windows
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Commercial Windows
How Installing Energy-Efficient Windows in Groton Saves You Money
There are quite a few benefits of switching to energy-efficient windows. A few reasons you may want to consider making the change include the following:
- Save money on electricity bills: The Department of Energy estimates that heat gained or lost via windows accounts for about 25-30% of energy use in your home. Upgrading to energy-efficient windows can help reduce that number, which helps you save more on your bills.
- Reduce your carbon footprint: Decreasing how much energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 147 pounds.
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes usually have windows that are outdated, leaky or maybe even damaged in some way. Upgrading your windows could help increase the value of your home if you decide to sell.
- Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
Estimated Cost of Window Replacement in Groton
Windows come in all shapes and sizes, so costs and services will vary considerably. Here are the typical costs and services that you'll find from window installers.
How Much Do New Windows Cost?
According to our research, the national average cost of replacing a single window is around $600. However, window installation costs can range from $200 to $1,200 a window. But prices differ considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door installations, which will make your project cost more.
With windows, efficiency is the most important factor for most homeowners. Windows with higher efficiency may cost more initially, but by increasing the efficiency of your home — especially during the summer and winter — they can give you decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Groton homeowners $424+ a year after replacing single-pane windows.
Another factor that influences the overall cost is the material you pick for your frame. Aluminum frames are generally the least pricey and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames cost the most, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.
What Services do Window Installers Offer?
Generally, there are two kinds of window installation services companies offer: full-frame and pocket installations.
A full-frame installation is a replacement of the total window. This service involves removing the old window, the sill, and the exterior and interior trim. It also involves additional materials, such as insulation and drip edges, which increase the overall cost of the project. Also worth noting: it's not uncommon for homeowners to have to touch up the paint surrounding the window after a full-frame installation. A pocket installation entails installing a new window within the old frame. So, instead of removing the whole window and rebuilding it, the window installer will just put the replacement window (also called a retrofit or insert window) into the frame.
Your window installation company should be able to help you choose what's best for your needs. In Groton, the decision will mostly depend on the age of your windows and if there's any damage. Wood can decay if it's not properly maintained over the years, so it's good to have a professional assess your frames and window sills.
Best Affordability
Window World
- Lifetime warranty
- Large serice area
- EnergyStar Partner
- 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 Residential Windows
Window Nation
- Manufactures products in-house
- Award-winning company
- Custom designs
- Installation not covered by warranty
How We Choose the Best Window Installers in Groton
The EcoWatch Reviews team differs from other reviewers because we assess these companies through a sustainability lens. We have assessed the best window installation companies in Groton mostly based on their energy efficient offerings, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows can cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve a wide variety of states and cities so you can find the best window installation company near you.
Work Quality
When it comes to new windows, the quality and range of services often plays just as important of a role in overall efficiency and performance as the type of window you choose. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
We analyzed patterns in recent customer feedback to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it reflects the quality of services across most other categories, including warranty, cost, quality of parts, professionalism, quality of installation and more.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies may not provide the highest quality service. Still, we want to ensure we're highlighting companies that provide a wide range of price and financing options so they're accessible to most homeowners.
Warranty
As discussed previously, windows are a sizable investment, so you'll want to be certain that investment is well protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a good track record in the industry. Window installers that have more years of experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Groton, CT Window Replacement FAQs
How much does a window install cost?
The national average cost to replace a single window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is generally dependent on the size of the window, the location of your property and the type and material of the window. Also, remember that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What are the most common types of replacement windows?
There are several different types of windows you can get for your home, including slider windows, transom windows, bay windows, awning windows, picture windows, double-hung and single-hung windows and casement windows.
Do you really need to use a window installation company?
You should hire a window installation professional whenever you need to upgrade your windows. Installing windows is a complex process that can be difficult to do on your own, so it's best left to the professionals.
How often do you need to replace your windows?
Windows typically have a lifespan of about 20 to 30 years, but anytime you notice damage on your windows, it's a good time to have them checked by an expert to determine if they are in need of a repair or replacement.
Should I replace my windows all at once?
If your windows are more than 20 years old, you probably need to replace all of them. By that point, they are often less efficient, leakier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less time.