30 Best Window Replacement Companies in Berlin, CT (Jan 2023)
Window Companies Near Me
When it's time to replace your windows, our guide to the top window installation companies can help you find the provider for you.
We analyzed all the top window installers in Berlin and selected the top 30 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated January 12, 2023
Why you can trust EcoWatch
Although eco-friendly energy sources like wind and solar are important when it comes to reducing your carbon footprint, improving your house's energy efficiency can also have a big impact on home energy conservation. If your house has old or damaged windows, your AC or heating system could be working overtime to heat or cool your house. This means higher electric bills.
That's also bad for the environment, as the extra energy used by outdated windows increases your carbon footprint.
Unlike other sites, EcoWatch ranks window installation companies on energy efficiency while also considering cost, customer satisfaction and service area.
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Manufactures products in-house
- Award-winning company
- No lifetime warranty
Best Affordability
Window World
- Great industry reputation
- Low prices relative to competitors
- Lifetime warranty
- Quality of service will depend on your area
Best for Residential Windows
Window Nation
- Custom designs
- Wide variety of products and services
- Manufactures products in-house
- Installation not covered by warranty
Best Window Replacement Companies in Berlin
The EcoWatch Reviews team assessed dozens of providers that serve the Berlin area to find the best window installation companies by our standards. The companies in this article scored best in our categories, which include energy-efficient offerings, price, availability, customer service and more.

Renewal by Andersen
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Member of US Green Building Council
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Manufactures products in-house
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Award-winning company
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No lifetime warranty
Renewal by Andersen offers the best availability in Berlin. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation business, and it has established itself as one of the most reputable companies in the business. The company has hundreds of positive reviews from customers on online 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 WindowsRenewal by Andersen is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to mention that you want energy-efficient windows to your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in Berlin?Prices aren't displayed 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. You can ask for a free quote on its website for more information about the cost.

Window World
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Great industry reputation
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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 offers windows expertise in Berlin. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window industry for about 27 years. Its reputation is backed by all the positive reviews on customer review websites.
Window World may be the company for you if you want one 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 carries some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. 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 Berlin?Prices aren't displayed on Window World's website, but it's known for offering some of the most affordable window installations around. You can request a free quote on its website for more information about pricing.

Window Nation
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Custom designs
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Wide variety of products and services
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Manufactures products in-house
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Installation not covered by warranty
Window Nation provides the best residential windows in Berlin. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. Window Nation has about 16 years of experience in the window installation business. Its reputation is backed by hundreds of positive reviews on customer 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 is an Energy Star partner and has 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 make 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 Berlin?While pricing information is not readily available on Window Nation's website, 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 get 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 Berlin. Aeroseal has around 23 years of experience in the window replacement business.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThere are a wide range of window types available from Aeroseal Windows, 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 Berlin?Though prices are not readily available on Aeroseal's website, it provides high-quality windows at a competitive price point. Getting a free quote on its website is the best way to know for sure.
We've recommended installers with shining reputations, but bear in mind that these are national companies, so the quality of service may vary depending on your local crew. We have tried to stay unbiased and transparent by including pros and cons for each company reviewed.
More Window Replacement Companies in Berlin
Renewal by Andersen - Branford
Branford, CT-
Free Quotes
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Timely Service
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No-Hassle Pricing
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Locally Recognized for Quality
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
TL Home Improvement LLC
Shelton, CT-
Excellent Customer Service
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Locally Recognized for Quality
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Educational Website
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Price Transparency
Services Offered
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Residential Windows
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Fast Delivery
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Timely Service
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Free Quotes
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Good Customer Service
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Consistent Workmanship
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay & Bow Windows
Nu-Face Home Improvements
Plantsville, CT-
Locally Recognized for Quality
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Reliable Appointment Windows
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Residential Windows
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
Advanced Window Systems LLC
Cromwell, CT-
Excellent Customer Service
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Timely Service
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No-fee Quotes
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Dependable Service
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Eastern Glass & Shower Door
Milford, CT-
Educational Website
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No-Hassle Pricing
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No-fee Quotes
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Excellent Customer Service
Services Offered
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Doors
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Full-Service Installations
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Custom Windows
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Tempered Glass
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Residential Windows
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Commercial Windows
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Aluminum Window Frames
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Sliding Glass
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Glass Showers
Mainville Windows & Doors
Newington, CT-
Helps Educate Customers
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Price Transparency
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Dependable Service
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Good Customer Service
Services Offered
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Residential Windows
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
United Glass & Mirror Co
Bozrah, CT-
Locally Recognized for Quality
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No-Hassle Pricing
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Good Customer Service
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Educational Website
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Heavy Glass
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Tempered Glass
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Doors
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Custom Window Designs
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Commercial Windows
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Sliding Glass
Window World of Hartford
Manchester, CT-
Helps Educate Customers
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Timely Service
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Free Quotes
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Award-Winning
Services Offered
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Custom Windows
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Fast Delivery
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Sliding Glass
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Double-Hung
V. Nanfito Roofing & Siding
Meriden, CT-
Reliable Service
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Award-Winning
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Helps Educate Customers
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No-Hassle Pricing
Services Offered
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Residential Windows
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Commercial Windows
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Full-Service Installations
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Custom Window Designs
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Excellent Customer Service
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Award-Winning
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No-fee Quotes
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No-Hassle Pricing
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
Reliable Service
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Good Customer Service
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Free Quotes
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Educational Website
Services Offered
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Residential Windows
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Commercial Windows
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Full-Service Installations
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Custom Window Designs
Peter L Brown
Granby, CT-
Good Customer Service
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Price Transparency
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Helps Educate Customers
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Free Quotes
Services Offered
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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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Double-Hung
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Sliding Glass
Capitol Glass Co Inc
West Hartford, CT-
Helps Educate Customers
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Price Transparency
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Residential Windows
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Architectural Glass
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Doors
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Sliding Glass
Torrington Replacement Windows
Torrington, CT-
Good Customer Service
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Price Transparency
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Helps Educate Customers
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No-fee Quotes
Services Offered
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Architectural Glass
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Clinton Glass
Clinton, CT-
Free Quotes
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Good Customer Service
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No-Hassle Pricing
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Locally Recognized for Quality
Services Offered
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Residential Windows
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Glass Showers
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Fast Delivery
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Custom Windows
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Business Windows
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Sliding Glass
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
Excellent Customer Service
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Free Quotes
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Residential Windows
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Architectural Glass
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Doors
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Custom Window Designs
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Business Windows
Villwell Builders, LLC
Waterbury, CT-
Free Quotes
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Consistent Workmanship
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No-Hassle Pricing
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Reliable Appointment Windows
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
Thomas Garbati Builders, LLC
Waterford, CT-
Excellent Customer Service
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Dependable Service
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Arrives on Time
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Helps Educate Customers
Services Offered
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Custom Windows
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Residential Windows
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Double-Hung
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Reliable Service
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Good Customer Service
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No-fee Quotes
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Price Transparency
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay Windows
Wallingford Glass
Wallingford, CT-
Consistent Workmanship
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Good Customer Service
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No-fee Quotes
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No-Hassle Pricing
Services Offered
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Residential Windows
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Tempered Glass
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Doors
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Custom Windows
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Commercial Windows
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Double-Hung
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Stained Glass
Ring's End
Madison, CT-
Excellent Customer Service
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No-Hassle Pricing
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No-fee Quotes
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Helps Educate Customers
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Commercial Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Ring's End
Branford, CT-
No-Hassle Pricing
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Free Quotes
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Helps Educate Customers
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Good Customer Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Business Windows
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Aluminum Window Frames
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Architectural Glass
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Fast Delivery
Cussons Sash
Glastonbury, CT-
Excellent Customer Service
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Supports Charities
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Reliable Service
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Helps Educate Customers
Services Offered
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Custom Windows
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Residential Windows
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Commercial Windows
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Sliding Glass
Fiderio & Sons
Meriden, CT-
No-Hassle Pricing
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Free Quotes
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Consistent Workmanship
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
Vovk Home Improvement Siding~Roof~Windows
Feeding Hills, MA-
Reliable Service
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Excellent Customer Service
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Free Quotes
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Price Transparency
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
J C Tonnotti Window Co
Southington, CT-
Reliable Appointment Windows
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Dependable Service
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Excellent Customer Service
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Sliding Glass
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Double-Hung
Window Nation
Wallingford, CT-
Free Quotes
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Dependable Service
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No-Hassle Pricing
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Award-Winning
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Pella Windows & Doors of Monroe
Monroe, CT-
Excellent Customer Service
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No-fee Quotes
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Award-Winning
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Educational Website
Services Offered
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Residential Windows
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
A Plus Exterior LLC
Milford, CT-
No-fee Quotes
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Educational Website
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Arrives on Time
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Consistent Workmanship
Services Offered
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Custom Window Designs
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Sliding Glass
How Installing Energy-Efficient Windows in Berlin Saves You Money
There are several benefits of switching to energy-efficient windows. Some reasons you may want to consider making the change are the following:
- Save money on energy bills: Once you switch to energy-efficient windows, you can expect a reduction in your bills by about 12% because you'll use less energy to heat or cool your home.
- Reduce your carbon footprint: In Berlin, you can lower your indirect greenhouse gas emissions by about 147 pounds per year when you upgrade to energy-efficient windows.
- 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 potentially even damaged in some way. Updating your windows could help raise the value of your home if you decide to sell.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent your floors, carpets and furniture from fading by filtering out UV rays.
Estimated Cost of Window Replacement in Berlin
Windows come in varying purposes, styles and shapes, so costs and services will vary greatly depending on several factors. Below, we describe the typical cost and services that you'll find from window installation companies.
How Much Do New Windows Cost?
According to our market research, the national average cost to replace a single window is about $600. However, window installation costs can range from $200 to $1,200 for each window. But prices differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door replacements, which will add extra costs to your project.
It's also worth noting that energy-efficient windows will cost more initially, but Energy Star predicts that switching out the windows on your Berlin home translates to an average energy savings of $236 to $319 a year for single-pane window replacement, or between $87 to $126 a year for double-pane windows. The amount of money you'll save by upgrading to energy-efficient windows depends on your local climate, energy rates and other factors unique to your home.
Requesting free quotes from multiple companies is the best way to figure out which one will work best for your budget.
What Services do Window Installers Offer?
The first step when considering a window installation is to think about whether you want a full-frame or pocket installation.
Full-frame installations are necessary when you want to change the style of your windows or your window has a lot of deterioration. With this service, your professionals will replace the full window, including the trim, sill and frame. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are simpler and won't carry as large a bill, but you can't do this kind of installment if you have any pre-existing rot or water damage.
Your window replacement company will be able to help you choose what's best for your needs. In Berlin, the decision will mostly depend on how old your windows are and if there's any moisture damage. Wood can decay if it's not properly maintained over the years, so it's a good idea to have a professional examine your frames and window sills.
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Manufactures products in-house
- Award-winning company
- No lifetime warranty
Best Affordability
Window World
- Great industry reputation
- Low prices relative to competitors
- Lifetime warranty
- Quality of service will depend on your area
Best for Residential Windows
Window Nation
- Custom designs
- Wide variety of products and services
- Manufactures products in-house
- Installation not covered by warranty
How We Choose the Best Window Installers in Berlin
EcoWatch differs from most reviewers since we look at these companies through a sustainability lens. Along with energy efficiency, we reviewed several window installers in Berlin and ranked them based on the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve the Berlin area so you can find the right window installation company near you.
Work Quality
When picking new windows, the quality and breadth of services often plays just as important of a role in insulation and performance as the brand you opt for. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across most other categories, including quality of parts, quality of installation, professionalism, warranty, cost and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers' prices, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important. That's why window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a proven track record in the industry. Window installers that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.
Berlin, CT Window Replacement FAQs
How much does a window install cost?
The national average cost of installing a single window is around $600 but can range from $200 to $1,200, depending on several factors. The price is usually influenced by 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 upfront but can save you hundreds of dollars a year in energy bills.
What type of window is the best for energy efficiency?
A window's energy efficiency is affected by a variety of factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are typically the most energy-efficient and are certified by the U.S. Department of Energy.
What do window installers do?
Window installation professionals visit your home to remove your old windows and replace them with new ones. Some companies install products sold by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation is complete.
How long does it usually take to install windows?
Because the average installation time of a window is 30 minutes, about 16 windows can be installed during a typical 8-hour work day.
How often do you need to replace your windows?
Windows generally have a lifespan of 20 to 30 years, but anytime you notice damage on your windows, it's a good idea to have them looked at by an expert to determine if they are in need of a repair or replacement.