29 Best Window Replacement Companies in New London, CT (2023 Reviews)
Window Companies Near Me
If you're thinking about upgrading to new windows, our list of the top window installation companies can help.
We analyzed all the top window installers in New London and selected the top 29 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
Although eco-friendly energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your home's energy efficiency can also have a big impact on home energy conservation. According to the Department of Energy, heat gained or lost through old or damaged windows could be responsible for 25-30% of residential energy climate control costs.
That's not great for your bank account or the environment, but one of the best window installation companies can help you with that.
Because windows are so important for your home, picking the right company for you is a big decision to make. That's why the EcoWatch team has made this list of the best window replacement companies, so you can make an informed decision more easily.
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- EnergyStar Partner
- Low prices relative to competitors
- Lifetime warranty
- Quality of service will depend on your area
Best for Residential Windows
Window Nation
- Award-winning company
- Wide variety of products and services
- Custom designs
- Installation not covered by warranty
Best Window Replacement Companies in New London
The EcoWatch Reviews team evaluated dozens of installers across the country to find the top window replacement companies for our readers. The companies we've mentioned in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

Renewal by Andersen
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Award-winning company
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Great industry reputation
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Member of US Green Building Council
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More expensive than competition
Renewal by Andersen offers the best availability in New London. It's 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 become one of the most reputable companies in New London. Hundreds of positive reviews on customer review websites back the company's reputation.
Andersen may be the company for you if you're looking for one 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 WindowsThere are a wide variety of window types available from Renewal by Andersen, some of which are Energy Star products. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in New London?Andersen does not mention 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. Receiving a free quote on its website is the best way to get more accurate information.

Window World
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EnergyStar Partner
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Low prices relative to competitors
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Lifetime warranty
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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 been in the window installation business for around 27 years. Its reputation is backed by all the positive reviews from customers online.
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, this may be the provider for you.
Energy Efficiency of Window World WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want high-quality Energy Star windows when inquiring. 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 New London?Although pricing information is not available on Window World's website, it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about the cost.

Window Nation
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Award-winning company
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Wide variety of products and services
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Custom designs
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Installation not covered by warranty
Window Nation offers the best residential windows in New London. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has over 16 years of industry experience, and it currently serves residents within 75 miles of its showrooms, which are in 13 states. The company has hundreds of glowing reviews from customers on online review websites.
You may want to consider opting for Window Nation if you're interested in 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 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 Window Nation representative when inquiring about services.
How much does Window Nation cost in New London?Window Nation doesn't have any cost information listed 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. The best way to get more accurate information 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 provides the best window installation for businesses in New London. 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 installation industry for around 23 years.
It installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThere are a wide range of window types that Aeroseal Windows offers, some of which are Energy Star products. 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 New London?Prices aren't available on Aeroseal's website, but it provides high-quality windows at a competitive price point. Requesting a free quote on its website is the best way to get more accurate pricing information.
One thing to note is that the companies in this section are national, which means the quality of the service may vary depending on your local team. We have tried to be unbiased and transparent by including both pros and cons for each company.
More Window Replacement Companies in New London
BP Builders | Roofer, Roof Replacement, Roofing Company & General Contractor CT
Waterford, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Double-Hung
Henderson Roofing
Westerly, RI-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Stained Glass
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Residential Windows
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Fast Delivery
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Commercial Windows
Window World of Hartford
Manchester, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Turner Home Improvement Contractors, LLC
Glastonbury, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Custom Window Designs
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Full-Service Installations
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Advanced Window Systems LLC
Cromwell, CT-
Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Energy-Efficient Options
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Glass Showers
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Bay Windows
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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
Window Nation
Wallingford, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Energy-Efficient Options
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Stained Glass
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Residential Windows
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Double-Hung
Tri-State Window Factor Corporation
Hartford, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Mr. Handyman of Norwich, New London and Glastonbury
Norwich, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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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
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Glass Showers
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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
Home Services at The Home Depot
Waterford, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Sliding Glass
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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
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Commercial Windows
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Double-Hung
Clinton Glass
Clinton, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial 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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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Advanced Performance Glass Inc
East Hartford, CT-
Good Customer Service
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Price Transparency
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Timely Service
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Educational Website
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Full-Service Installations
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Double-Hung
NEWPRO
Unit 2, CT-
Good Customer Service
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Educational Website
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Price Transparency
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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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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
Home Services at The Home Depot
North Haven, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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Custom Window Designs
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Stained Glass
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Residential Windows
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
Creative Enclosures
Bozrah, 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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Glass Showers
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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
Allstate Windows
Rocky Hill, 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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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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Aluminum Window Frames
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Commercial Windows
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Double-Hung
Wallingford Glass
Wallingford, CT-
Good Customer Service
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Price Transparency
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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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Stained Glass
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Residential Windows
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Fast Delivery
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Tempered Glass
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Double-Hung
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Commercial Windows
ΛUTOMOTIVΛTED
North Haven, CT-
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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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
CT Tint
Meriden, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Sliding Glass
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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
Home Services at The Home Depot
Berlin, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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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
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Commercial Windows
Fagan Door Systems
Coventry, RI-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Custom Window Designs
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Stained Glass
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Residential Windows
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Aluminum Window Frames
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Double-Hung
North Shore Window Inc.
Bridgehampton, NY-
Good Customer Service
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Award-Winning
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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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Residential Windows
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Fast Delivery
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
Home Services at The Home Depot
700 Centre Of NE Blvd, RI-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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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
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Commercial Windows
Home Services at The Home Depot
Wallingford, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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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
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Commercial Windows
Home Services at The Home Depot
Uncasville, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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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
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Commercial Windows
EcoView Of New Haven
Wallingford, CT-
Good Customer Service
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Award-Winning
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Energy-Efficient Options
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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
Home Services at The Home Depot
Manchester, CT-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Glass Showers
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Bay Windows
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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
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Commercial Windows
Coastal Concepts
Westbrook, CT-
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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Residential Windows
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Custom Window Designs
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Fast Delivery
How Installing Energy-Efficient Windows in New London Saves You Money
When you upgrade to energy-efficient windows, you may see some benefits, such as:
- Protect your valuables: Many Energy Star certified windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Save money 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. Switching to energy-efficient windows can help decrease that amount, which helps you save more on your bills.
- Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its real estate value.
- Decrease your carbon footprint: In New London, you can reduce your indirect greenhouse gas emissions by about 147 pounds per year when you switch to energy-efficient windows.
Estimated Cost of Window Replacement in New London
Windows come in all shapes and sizes, so costs and services will vary remarkably. Here are the average costs and the primary services that you can find from window installers.
How Much Do New Windows Cost?
The average cost to install one window is about $600 but can range from $200 to $1,200. This is because the cost of window installations depend on a variety of factors specific to your home, such as the size, material and number of windows you need to replace, as well as where your property is located.
Whether or not you want to install energy-efficient windows is another factor that will determine the cost. These will typically cost more than other windows, but on the other hand, you can save about $424 a year on your energy bills in New London.
How much your window installation costs will also vary depending on the kind of window material you choose for the frames. Wood windows are generally the most expensive, but it depends if they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be somewhat more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
The first step when considering an installation is to clarify whether you want a full-frame or pocket installation.
Full-frame installations are usually recommended when you want to change the style of your windows or your window has significant deterioration. With this service, your professionals will replace the total window, including the trim, frame and sill. Pocket installations (or retrofits) involve replacing a window within the existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any rot or deterioration, you will most likely need a full-frame installation instead.
If you're unsure which kind of window installation service you should get, your installer should be able to advise you. Typically, the choice depends on factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Overall
Renewal by Andersen
- Award-winning company
- Great industry reputation
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- EnergyStar Partner
- Low prices relative to competitors
- Lifetime warranty
- Quality of service will depend on your area
Best for Residential Windows
Window Nation
- Award-winning company
- Wide variety of products and services
- Custom designs
- Installation not covered by warranty
How We Choose the Best Window Installers in New London
EcoWatch reviews are different from other reviews since we evaluate these companies through a sustainability lens. Along with energy efficiency, we analyzed several window installers in New London and ranked them based on the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve New London so you can find the right 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 opt for. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Another self-explanatory yet very important review factor is customer feedback. If most customers don't have positive feedback about their service from a certain company, it won't be featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a hefty investment, so you'll want to be certain that investment is protected. Window installation companies that have 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 a good track record in the industry. Window installation companies 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.
New London, CT Window Replacement FAQs
What is the average cost to install windows in a home?
The average cost to install a window can range between $450 and $650. There are many factors that influence how much it costs, including the number of windows, local labor costs, your property's location, the materials used in designing the windows, styles and sizes of windows and how energy-efficient the windows are.
Which type of window is the best?
A window's energy efficiency depends on a number of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.
What do window installers do?
Window installers travel to your home to remove your old windows and replace them with new ones. Some providers install products sold by other companies, whereas others install their own windows. The installer will also clean up after the installation.
How long does it take to install windows?
Each window takes around 30 minutes to install based on the kind of window. However, the window installation can take two days or more if you have a lot of windows that must be installed.
Should I replace all my windows at once?
If your windows are greater than 20 years old, you most likely 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 once will involve less paperwork and less stress.