26 Best Window Replacement Companies in Marlborough, CT (Mar 2023)
Window Companies Near Me
If you're thinking of upgrading to new windows, our list of the best window installation companies can help.
We analyzed all the top window installers in Marlborough and selected the top 26 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
The EcoWatch Reviews team is all about helping Marlborough homeowners find eco-conscious solutions for their homes. Outdated windows could lead to spending more on electric bills during the winter or summer months.
Replacement windows improve your home's insulation, not only making you more comfortable during extreme temperatures, but also saving you some money and helping the environment.
Unlike other review sites, EcoWatch ranks window installation companies on energy efficiency while also taking into consideration cost, customer satisfaction and service area.
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Member of US Green Building Council
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Great industry reputation
- Manufactures products in-house
- Low number of customer complaints
- Not ideal for residential installations
Best Window Replacement Companies in Marlborough
The EcoWatch team researched dozens of window providers across Marlborough to narrow our list down to the top ones. The installers mentioned in this article scored best in our categories: energy-efficient offerings, customer service, availability, price and more.

Window World
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EnergyStar Partner
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Lifetime warranty
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Great industry reputation
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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 around 27 years of experience in the window installation sector.
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 company for you.
Energy Efficiency of Window World WindowsThere are a wide variety of window types that Window World offers, some of which are Energy Star products. 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 Marlborough?Window World doesn't have any pricing information displayed 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 receive a quote from the company.

Renewal by Andersen
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Manufactures products in-house
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Award-winning company
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Member of US Green Building Council
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No lifetime warranty
Renewal by Andersen provides the best availability in Marlborough. Andersen has been in the window installation business for around 27 years. Its reputation is backed by many positive reviews from customers online.
It has established itself as a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen has 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. 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 Marlborough?Andersen does not list prices on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on pricing, you can ask for a quote from the company.

Aeroseal Windows
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Great industry reputation
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Manufactures products in-house
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Low number of customer complaints
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Not ideal for residential installations
Aeroseal Windows has the best window installation for businesses in Marlborough. This provider has 23 years of experience in the window installation business, and it has established itself as one of the most respected companies in Marlborough. Its reputation is backed by several positive reviews from customers online.
If you're looking for a company that installs windows and doors at businesses across the Eastern U.S, this may be the company for you.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner and offers a variety of energy-efficient windows. 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 Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Marlborough?Aeroseal does not mention prices on its website, but it provides high-quality windows at a competitive price point. For more detailed information on pricing, you can ask for a 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 provides the best residential windows in Marlborough. This window installation company has been operating since 2006 and currently services residents within 75 miles of its showrooms, which are in 13 states. Its reputation is backed by several positive reviews from customers online.
Window Nation may be the company for you if you're looking for one that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation has some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you ask for high-quality Energy Star windows when inquiring. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Marlborough?Prices are not available on Window Nation's website since the cost of window replacement depends on how many and what type(s) of windows you need. However, 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 detailed information on pricing, you can receive a quote from the company.
We strive to be unbiased and transparent by mentioning pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Replacement Companies in Marlborough
Renewal by Andersen - Branford
Branford, CT-
Excellent Customer Service
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Helps Educate Customers
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Free Quotes
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No-Hassle Pricing
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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Stained Glass
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Sliding Glass
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Bay Windows
Renewal by Andersen - Southern New England
Windsor Locks, CT-
Educational Website
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Good Customer Service
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Dependable Service
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Free Quotes
Services Offered
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Residential Windows
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Custom Windows
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Business 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-
Reliable Service
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Free Quotes
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Educational Website
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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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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Sliding Glass
Advanced Window Systems LLC
Cromwell, CT-
Free Quotes
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Helps Educate Customers
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Price Transparency
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Good Customer 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 Windows
Mainville Windows & Doors
Newington, CT-
No-Hassle Pricing
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Dependable Service
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Free Quotes
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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-
Price Transparency
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Educational Website
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Award-Winning
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Excellent Customer Service
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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Business Windows
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Sliding Glass
Window World of Hartford
Manchester, CT-
Dependable Service
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Excellent Customer Service
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Free Quotes
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Locally Recognized for Quality
Services Offered
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Custom Window Designs
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Fast Delivery
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Sliding Glass
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Double-Hung
V. Nanfito Roofing & Siding
Meriden, CT-
Excellent Customer Service
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Award-Winning
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Educational Website
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Reliable Appointment Windows
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 Windows
Mr. Handyman of Norwich, New London and Glastonbury
Norwich, CT-
Free Quotes
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Award-Winning
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Timely Service
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Educational Website
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
Mr. Handyman of Guilford, North and East Haven
East Haven, CT-
Dependable Service
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Timely Service
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Good Customer 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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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
Good Customer Service
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Arrives on Time
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No-Hassle Pricing
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Consistent Workmanship
Services Offered
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Residential Windows
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Business 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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Free Quotes
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Consistent Workmanship
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Educational Website
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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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
Clinton Glass
Clinton, CT-
Excellent Customer Service
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Helps Educate Customers
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Locally Recognized for Quality
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No-Hassle Pricing
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 Window Designs
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Business Windows
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Sliding Glass
Plymouth Glass & Mirror, Inc.
Thomaston, CT-
Price Transparency
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Good Customer Service
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Award-Winning
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No-fee Quotes
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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Commercial Windows
Villwell Builders, LLC
Waterbury, CT-
Arrives on Time
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Helps Educate Customers
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
Thomas Garbati Builders, LLC
Waterford, CT-
Dependable Service
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Locally Recognized for Quality
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Educational Website
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Good Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Double-Hung
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Good Customer Service
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Free Quotes
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Reliable Service
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No-Hassle Pricing
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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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-
No-Hassle Pricing
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Excellent Customer Service
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No-fee Quotes
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Dependable Service
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-
No-fee Quotes
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Price Transparency
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Excellent Customer Service
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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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Excellent Customer Service
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Educational Website
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No-fee Quotes
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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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
Cussons Sash
Glastonbury, CT-
No-Hassle Pricing
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Charitable Giving
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Dependable 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-
Arrives on Time
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Dependable Service
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No-Hassle Pricing
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Free Quotes
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
Major Home Improvements LLC - Roofing
Springfield, MA-
Educational Website
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No-Hassle Pricing
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Reliable Service
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Free Quotes
Services Offered
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Custom Windows
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Residential Windows
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Aluminum Window Frames
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Double-Hung
Vovk Home Improvement Siding~Roof~Windows
Feeding Hills, MA-
No-Hassle Pricing
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Excellent Customer Service
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Reliable Appointment Windows
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Dependable Service
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-
Free Quotes
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No-Hassle Pricing
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Excellent Customer Service
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Helps Educate Customers
Services Offered
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Custom Windows
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Aluminum Window Frames
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Sliding Glass
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Double-Hung
How Installing Energy-Efficient Windows in Marlborough Saves You Money
There are quite a few benefits of switching to energy-efficient windows. Some reasons you may want to consider making the switch are the following:
- Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Upgrading your windows can make your home more comfortable and also help increase the value of your house if you decide to sell.
- Save money on power bills: Once you upgrade to energy-efficient windows, you can expect a reduction in your bills by about 12% because you'll need less energy to heat or cool your home.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out harmful UV rays, preventing your furniture, carpet and other valuables from fading.
- Decrease your carbon footprint: You can reduce your carbon footprint by about 12% when you install Energy Star certified windows. In Marlborough, that's about 147 pounds per year on average.
Estimated Cost of Window Replacement in Marlborough
Let's go over the cost of installing new windows and the kinds of services offered by installers.
How Much Do New Windows Cost?
The average cost to replace a single window is about $600 but can range anywhere from $200 to $1,200. This is because the cost of window installations are based on several 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.
With windows, efficiency is one of the most important factors for many homeowners. High efficiency windows may cost more upfront, but by increasing the efficiency of your home — particularly during the summer and winter — they can give you decades of energy savings. According to Energy Star, purchasing certified energy-efficient windows can save Marlborough homeowners $446+ per year after replacing single-pane windows.
How much your window installation costs will also vary based on the kind of material you choose for the frames. Wood windows are typically the most expensive, though it depends if they are completely 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?
When considering window replacements, in general there are two kinds that your installer will have: full-frame and pocket installations.
Full-frame installations require replacing the whole window — the sill, frame, trim and all. These are typically done when you want to change the style of your window or when it has a great amount of rot or deterioration. Full-frame installations involve more time and labor and will increase overall costs. A pocket installation involves installing a new window without replacing the frame. So, instead of removing the whole window and reinstalling it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.
Your window replacement company will be able to help you figure out what's best for your needs. In Marlborough, the decision will mostly be based 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 good to have a professional evaluate your frames and window sills.
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Great industry reputation
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Member of US Green Building Council
- No lifetime warranty
Best for Businesses
Aeroseal Windows
- Great industry reputation
- Manufactures products in-house
- Low number of customer complaints
- Not ideal for residential installations
How We Choose the Best Window Installers in Marlborough
In our search to find the most reliable, eco-friendly window installers in Marlborough, EcoWatch assessed dozens of companies before deciding on these. Along with energy efficiency, we evaluated several window installers in Marlborough and assigned rankings based on the following methodology:
Service Area
Because this is a guide for Marlborough, we gave more points to companies that provide services to the city. There are certainly other reputable providers that didn't make the list because of the low odds that they would serve the average homeowner in Marlborough.
Work Quality
When selecting new windows, the quality and variety of services can often play just as important of a role in insulation and performance as the type of window you opt for. We do rate window installers higher if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent online reviews to find the companies with the most consistent customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it reflects the quality of services across nearly every category, including quality of installation, quality of parts, cost, warranty, professionalism and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing the prices of providers, we gave higher scores 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 provide 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 a while. Window installation companies that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.
Marlborough, CT Window Replacement FAQs
What is the typical cost to install windows?
The average cost to replace one window can range between $450 and $650. There are many factors that influence the cost, which include how energy-efficient the windows are, styles and sizes of windows, local labor costs, the materials used in designing the windows, your property's location and the number of windows.
Which kind of window should I get?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. To be sure you're getting the most energy-efficient windows, look for models that have the blue Energy Star certification attached to them — that means they're certified energy-efficient by the U.S. Department of Energy.
Do I really need to use a window installation company?
You should use a window installation professional whenever you need new windows. Installing windows is a involved process that can be difficult to do on your own, so it's best left to the professionals.
How often do you need to replace your windows?
Windows typically last around 20 to 30 years, but anytime you see damage on your windows, it's a good time to have them checked by an expert to determine if they are in need of a repair or replacement.
Should I replace my windows all at the same time?
If your windows are greater than 20 years old, it's most likely time to replace all of them. At that point, they are often less efficient, draftier and/or more damaged than new windows. Doing your windows all at the same time will involve less paperwork and less stress.