20 Best Window Companies in Kensington, CT (2023 Reviews)
Thinking about improving your house's appearance? The best window replacement companies can help.
We analyzed all the top-rated window companies in Kensington and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
Although renewable energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your home's efficiency can also have a large impact on home energy conservation. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.
That's bad news for your wallet and the environment, but one of the top window installation companies can help you with that.
Efficient windows are of particular importance in Kensington, where the temperature varies throughout the year. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $446 a year.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Kensington
The EcoWatch Reviews team researched many window providers across Kensington to narrow our list down to the top ones. The providers in this article scored best in our review categories, which include energy-efficient offerings, price, availability, local expertise, customer service and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World offers windows expertise in Kensington. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has about 27 years of experience in the window installation sector.
It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Kensington?Window World does not mention prices on its website, but it's known for offering some of the most affordable window installations around. For more accurate information on pricing, you can request a quote from the company.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window installation business for about 27 years. Its reputation is backed by all the positive reviews on customer review websites.
It uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen 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 offerings are Energy Star certified, so be sure to mention that you’re interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Kensington?Prices aren’t listed on Andersen’s 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 request a 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 offers the best window installation for businesses in Kensington. 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. Its reputation is backed by a considerable amount of positive reviews from customers online.
If you’re looking for a company that installs windows and doors at businesses across the Eastern U.S, Aeroseal may be the right provider for you.
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 Kensington?Aeroseal doesn’t have any prices listed on its website, but it provides high-quality windows at a competitive price point. The best way to know for sure is to get a free quote from the company.

Window Nation
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Award-winning company
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Manufactures products in-house
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Custom designs
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Wide variety of products and services
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Installation not covered by warranty
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Limited service area
Window Nation is a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has been in the window installation business for about 16 years. Its reputation is backed by all the positive reviews on customer review websites.
It 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’re interested in Energy Star windows when inquiring.
How much does Window Nation cost in Kensington?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. For more accurate information on pricing, you can request a quote from the company.
We aim to stay unbiased and transparent by including pros and cons for every provider. Additionally, any partnerships do not influence our rankings.
More Window Companies in Kensington
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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Commercial Windows
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Double-Hung
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Custom Window Designs
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Window Replacement
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Stained Glass
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Residential Windows
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Sliding Glass
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Glass Showers
Window World of Hartford
Manchester, CT-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
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Timely Service
Services Offered
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Double-Hung
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Window Repair
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Fast Delivery
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Sliding Glass
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Window Replacement
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Bay Windows
Window Nation
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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Custom Window Designs
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Double-Hung
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Stained Glass
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Residential Windows
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Bay Windows
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Window Replacement
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Energy-Efficient Options
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Sliding Glass
Nu-Face Home Improvements
Berlin, CT-
Price Transparency
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Educational Website
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Good Customer Service
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Free assessment
Services Offered
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Custom Window Designs
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Fast Delivery
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Energy-Efficient Options
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Double-Hung
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Residential Windows
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Commercial Windows
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Window Replacement
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Glass Showers
Yargueta Construction
Newington, CT-
Price Transparency
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Good Customer Service
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Educational Website
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Timely Service
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Free assessment
Services Offered
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Custom Window Designs
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Residential Windows
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Window Replacement
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Double-Hung
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Commercial Windows
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Full-Service Installations
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Glass Showers
Finestra Windows & Installation
West Hartford, CT-
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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Tempered Glass
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Double-Hung
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Glass Showers
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Residential Windows
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Window Replacement
J.C. Tonnotti Window Company
Southington, CT-
Educational Website
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Good Customer Service
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Timely Service
Services Offered
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Window Replacement
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Commercial Windows
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Residential Windows
Mainville Windows & Doors
Newington, CT-
Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Custom Window Designs
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Glass Showers
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Bay Windows
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Residential Windows
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Aluminum Window Frames
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Sliding Glass
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Commercial Windows
Coastal Construction Group LLC
Cheshire, CT-
Good Customer Service
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Free assessment
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Timely Service
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Educational Website
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Price Transparency
Services Offered
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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
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Double-Hung
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Window Replacement
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Stained Glass
Peoples Products - HR40 Windows
Newington, CT-
Educational Website
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Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Window Replacement
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Fast Delivery
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Aluminum Window Frames
Highland Window Company, LLC
West Hartford, CT-
Free assessment
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Good Customer Service
Services Offered
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Window Replacement
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Residential Windows
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Double-Hung
Castle Windows
East Berlin, CT-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
Hometech Sunrooms & Remodeling
Southington, CT-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Window Replacement
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Fast Delivery
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Custom Window Designs
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Full-Service Installations
Turner Home Improvement Contractors, LLC
Glastonbury, CT-
Free assessment
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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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Residential Windows
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Commercial Windows
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Window Replacement
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Fast Delivery
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Custom Window Designs
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Double-Hung
Energy Busters LTD
Hartford, CT-
Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Window Replacement
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Energy-Efficient Options
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Residential Windows
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Custom Window Designs
Window Restorations of Connecticut - formerly Bi-Glass of Connecticut
Berlin, CT-
Price Transparency
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Good Customer Service
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Timely Service
Services Offered
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Residential Windows
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Window Replacement
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Energy-Efficient Options
Home Services at The Home Depot
Berlin, CT-
Price Transparency
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Educational Website
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Free assessment
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Good Customer Service
Services Offered
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Glass Showers
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Custom Window Designs
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Fast Delivery
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Commercial Windows
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Stained Glass
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Window Replacement
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Residential Windows
Bencar Building Systems LLC
Wallingford, CT-
Good Customer Service
Services Offered
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Glass Showers
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Custom Window Designs
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Window Replacement
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Residential Windows
Cussons Sash
Glastonbury, CT-
Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
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Commercial Windows
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Fast Delivery
ProEdge Remodeling by Custom Built
Windsor, 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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Bay Windows
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Residential Windows
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Double-Hung
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Energy-Efficient Options
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Custom Window Designs
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Fast Delivery
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Sliding Glass
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Window Replacement
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Commercial Windows
Calculate how much you can expect to pay for window installation and replacement in Kensington, CT using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Kensington Saves You Money
Upgrading to energy-efficient windows can improve the comfort of your home and help you save on power bills. Here are more details about how upgrading your windows could benefit you:
- More efficient energy use in your household: In Kensington where the winters can be very cold, energy-efficient windows decrease the amount of heat that is lost through your windows, which makes it easier to keep your house warm.
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% once you install Energy Star certified windows. In Kensington, that's about 147 pounds per year on average.
- Protect your valuables from fading: When you upgrade to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will fade less due to their ability to filter out damaging UV rays.
- Protect your investment: Upgrading and repairing your windows is an important part of maintaining your property and its real estate value, especially if your home is on the older side.
Estimated Cost of Window Replacement in Kensington
Windows come in various styles, shapes and purposes, so costs and services will differ considerably based on your project. Below, we describe the average cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
The average cost to replace one window is about $600 but can range anywhere from $200 to $1,200. This is because window installations are based on several factors specific to your home, including the size, material and number of windows you need to replace, as well as where your property is located.
It's important to bear in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in certified energy-efficient windows can save Kensington homeowners $446+ a year when replacing single-pane windows.
Costs will also vary based on the material you choose for your window frames. Aluminum frames have the lowest price. They're sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are a bit more expensive and offer good insulation. Composite frames made from wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
Generally, there are two kinds of window installation services you can get: full-frame and pocket installations.
A full-frame installation replaces the entire window, such as the sill, frame, trim and the window panes. As this kind of installation is more involved, it will cost more than a pocket installation. Pocket installations are on the simpler end and won't cost as much, as they involve merely replacing the window within its existing frame. But if the frame has any damage or deterioration, you should opt for a full-frame installation instead.
Your window installation company can help you figure out which type of installation you need.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Kensington
EcoWatch reviews are different from other reviews, as we examine these companies through a sustainability lens. Along with energy efficiency, we evaluated several window installers in Kensington and assigned rankings using the following methodology:
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
We're certain that you're not looking for a company to do a shoddy job installing windows. We've vetted each installer featured on this list to make sure its technicians are well-qualified and that the company has received plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent online reviews to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the factor we place the most value on, as it reflects the quality of services across most other categories, including warranty, quality of parts, quality of installation, professionalism, cost and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that offer 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 been in the industry for quite some time. Window installation companies that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Kensington, CT Window Replacement FAQs
How much should a window install cost?
The average cost of installing a window can range between $450 and $650. There are many factors that influence the cost, such as how energy-efficient the windows are, your property's location, local labor costs, the materials used in designing the windows, styles and sizes of windows and the number of windows.
What are the most common types of replacement windows?
There are several different types of windows you can get for your home, such as picture windows, bay windows, slider windows, double-hung and single-hung windows, casement windows, awning windows and transom windows.
Do I really have to use a window installation company?
Unless you have experience with home improvement projects and have the time needed to replace your own windows, we recommend hiring a professional. The window installation process is complex and can take anywhere from four to six hours for a single window. Although it's tempting to try to save some money by doing it yourself, hiring a company is a faster, more efficient and safer alternative.
How often do you need to replace your windows?
Windows have an average lifespan of about 20 to 30 years. If your windows are older than that, they probably need to be replaced. Other than that, if your windows have any damage on them, or they have become difficult to open or close, they may need to be replaced.
Should I replace my windows all at the same time?
If your windows are more than 20 years old, it's probably time to replace all of them. By that point, they are often less efficient, leakier and/or more damaged than new windows. Replacing your windows all at the same time will involve less paperwork and less time.