30 Best Window Replacement Companies in Westford, MA (2023 Reviews)
Window Companies Near Me
Are you looking to replace your windows? Our guide to the best window installation companies can help you pick the right one for you.
We analyzed all the top window installers in Westford 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 May 04, 2023
Why you can trust EcoWatch
Whether you're doing renovations or have damaged windows, windows play a key role in conserving your home's energy. According to the Department of Energy, heat gained or lost through old or damaged windows could account for 25-30% of residential energy climate control usage.
Installing upgraded, efficient windows on your house can help you save money each month on your electric bills — and you can help the environment as well.
Efficient windows are of particular importance in Westford, 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 $464 each year.
Best Affordability
Window World
- Large serice area
- 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
- More expensive than competition
Best for Residential Windows
Window Nation
- Award-winning company
- Wide variety of products and services
- Custom designs
- Installation not covered by warranty
Best Window Replacement Companies in Westford
The EcoWatch Reviews team examined dozens of installers across the country to find the top window companies for our readers. The providers mentioned in this article scored best in our review categories, which include energy-efficient offerings, local expertise, customer service, availability, price and more.

Window World
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Large serice area
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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 about 27 years of experience in the window replacement sector. Many positive reviews from customers online back the provider's reputation.
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 perfect provider for you.
Energy Efficiency of Window World WindowsWindow World carries some Energy Star windows, but note that not all its windows are energy-efficient, so 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 Westford?Prices aren't available on Window World's website, but it's known for offering some of the most affordable window installations around. Requesting a free quote on its website is the best way to know for sure.

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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More expensive than competition
Renewal by Andersen offers the best availability in Westford. Andersen has around 27 years of experience in the window installation industry.
You may want to consider going with Andersen if you're interested in 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's commitment to sustainability can be seen in its energy-efficient window offerings. 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 Westford?While prices are not available on Andersen's website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to get more accurate information is to receive a free quote from the company.

Window Nation
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Award-winning company
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Wide variety of products and services
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Custom designs
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Installation not covered by warranty
Window Nation has the best residential windows in Westford. 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 replacement business. Hundreds of positive reviews on customer review websites back the company's reputation.
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 is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to ask your Window Nation representative when inquiring about services.
How much does Window Nation cost in Westford?Prices are not available on Window Nation's website since the cost of window installment 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. Receiving a free quote on its website is the best way to get more accurate pricing information.

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 is 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 about 23 years of experience in the industry, and it currently serves 13 states and Washington D.C. The company has hundreds of positive reviews from customers on online review websites.
You may want to consider picking Aeroseal if you're interested in a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsThe company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more. Not all of Aeroseal's windows are Energy Star certified, so be sure to mention that you'd like Energy Star windows when inquiring.
How much does Aeroseal Windows cost in Westford?Prices aren't available on Aeroseal's website, but it provides high-quality windows at a competitive price point. For more detailed information on the cost, you can get a quote from the company.
Please note that the companies in this section are national, which means the quality of customer service may depend on your local crew. We have tried to be unbiased and transparent by mentioning both pros and cons for every provider.
More Window Replacement Companies in Westford
Window World of Boston
Woburn, MA-
Educational Website
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Timely Service
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Award-Winning
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Double-Hung
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Bay Windows
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Commercial Windows
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Energy-Efficient Options
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Stained Glass
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Residential Windows
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Fast Delivery
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Sliding Glass
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Custom Window Designs
Nashua Glass
Nashua, NH-
Good Customer Service
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Price Transparency
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Educational Website
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Award-Winning
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Free assessment
Services Offered
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Residential Windows
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Commercial Windows
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Fast Delivery
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Glass Showers
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Sliding Glass
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Custom Window Designs
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Double-Hung
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Tempered Glass
Pella Windows & Doors of Natick
Natick, MA-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
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Award-Winning
Services Offered
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Double-Hung
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Sliding Glass
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Residential Windows
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Bay Windows
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Fast Delivery
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Custom Window Designs
Mr. Handyman of Lowell, Andover and Haverhill
Tyngsborough, MA-
Free assessment
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Good Customer Service
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Price Transparency
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Timely Service
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Educational Website
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Award-Winning
Services Offered
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Double-Hung
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Residential Windows
Mr. Handyman of Greater Newton
Auburndale, MA-
Educational Website
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Timely Service
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Award-Winning
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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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Commercial Windows
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Double-Hung
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Residential Windows
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Glass Showers
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Custom Window Designs
Melrose Glass Co
Melrose, MA-
Price Transparency
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Educational Website
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Award-Winning
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Good Customer Service
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Free assessment
Services Offered
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Aluminum Window Frames
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Fast Delivery
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Commercial Windows
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Residential Windows
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Glass Showers
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Custom Window Designs
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Double-Hung
R&M Glass
Tewksbury, MA-
Timely Service
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Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Residential Windows
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Full-Service Installations
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Custom Window Designs
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Glass Showers
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Commercial Windows
Red Dog's Roofing LLC
Fitchburg, MA-
Free assessment
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Good Customer Service
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Price Transparency
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Educational Website
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Award-Winning
Services Offered
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Fast Delivery
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Stained Glass
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Residential Windows
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Custom Window Designs
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Commercial Windows
Pella Windows & Doors of Woburn
Woburn, MA-
Award-Winning
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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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Custom Window Designs
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Residential Windows
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Sliding Glass
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Double-Hung
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Bay Windows
Solid State Construction
Shirley, MA-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
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Award-Winning
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 Window Designs
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Commercial Windows
Rite Window
Woburn, MA-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
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Award-Winning
Services Offered
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Residential Windows
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Custom Window Designs
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Glass Showers
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Double-Hung
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Energy-Efficient Options
Elite Roofing and Siding Massachusetts
Lowell, MA-
Timely Service
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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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Glass Showers
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Fast Delivery
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Sliding Glass
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Commercial Windows
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Energy-Efficient Options
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Custom Window Designs
Home Services at The Home Depot
Methuen, MA-
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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Residential Windows
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Bay Windows
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Commercial Windows
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Custom Window Designs
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Fast Delivery
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Double-Hung
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Glass Showers
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Stained Glass
Novus Exteriors
Office 80, MA-
Free assessment
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Educational Website
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Timely Service
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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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Custom Window Designs
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Bay Windows
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Residential Windows
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Commercial Windows
Guaranteed Aluminum & Vinyl Inc
Lowell, MA-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Sliding Glass
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Residential Windows
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Commercial Windows
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Bay Windows
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Aluminum Window Frames
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Custom Window Designs
Woodland HomeWorks
Billerica, MA-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Custom Window Designs
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Residential Windows
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Fast Delivery
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Commercial Windows
Pro Entry Installs LLC
Salem, NH-
Price Transparency
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Award-Winning
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Good Customer Service
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Timely Service
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Educational Website
Services Offered
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Bay Windows
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Residential Windows
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Double-Hung
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Custom Window Designs
Portland Glass of Methuen
Methuen, MA-
Educational Website
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Price Transparency
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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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Commercial Windows
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Residential Windows
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Double-Hung
Portland Glass of Nashua
Nashua, NH-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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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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Commercial Windows
Arlmont Glass & Mirror
Medford, MA-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Custom Window Designs
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Double-Hung
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Residential Windows
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Commercial Windows
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Glass Showers
Home Services at The Home Depot
Tewksbury, MA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Stained Glass
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Glass Showers
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Fast Delivery
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Bay Windows
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Custom Window Designs
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Commercial Windows
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Residential Windows
Pelicar Professional Window Tinting
Medford, MA-
Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Fast Delivery
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Custom Window Designs
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Double-Hung
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Commercial Windows
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Sliding Glass
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Residential Windows
Home Services at The Home Depot
Londonderry, NH-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Glass Showers
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Bay Windows
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Commercial Windows
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Fast Delivery
Paul's Plate Glass Co
Fitchburg, MA-
Price Transparency
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Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Commercial Windows
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Fast Delivery
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Custom Window Designs
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Sliding Glass
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Glass Showers
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Residential Windows
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Full-Service Installations
TLC Custom Design Construction
Wakefield, MA-
Good Customer Service
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Free assessment
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Award-Winning
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Educational Website
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Price Transparency
Services Offered
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Glass Showers
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Custom Window Designs
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Residential Windows
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Full-Service Installations
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Commercial Windows
O'Sullivan Installs
Billerica, MA-
Free assessment
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Educational Website
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Price Transparency
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Award-Winning
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Good Customer Service
Services Offered
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Energy-Efficient Options
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Bay Windows
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Residential Windows
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Fast Delivery
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Custom Window Designs
Westford Glass
Westford, MA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Double-Hung
Lynne Greene Interiors
Burlington, MA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Residential Windows
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Custom Window Designs
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Glass Showers
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Commercial Windows
Innuwindow
Natick, MA-
Good Customer Service
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Price Transparency
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Educational Website
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Free assessment
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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Glass Showers
City Mirror & Glass Co
Lowell, MA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Residential Windows
How Installing Energy-Efficient Windows in Westford Saves You Money
By switching to energy-efficient windows, you and your family can take advantage of several benefits, including:
- Save on power bills: After you upgrade to energy-efficient windows, you can see a reduction in your bills by about 12% because you'll use less energy to heat or cool your home.
- Protect your valuables from fading: When you switch to energy-efficient windows that have low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out harmful UV rays.
- Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Updating your windows can improve the insulation in your home and also help increase the value of your property if you decide to sell.
- Reduce your carbon footprint: In Westford, you can lower your indirect greenhouse gas emissions by about 139 pounds per year once you switch to energy-efficient windows.
Estimated Cost of Window Replacement in Westford
Let's take a look at the cost of installing new windows and the types of services you may need for your home.
How Much Do New Windows Cost?
Generally, homeowners in Westford can anticipate that most window installations will range from $250 to $1,200, with the most common installations sitting at around $600. But costs 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 companies also offer door installations and replacements, which will make your project cost more.
Bear in mind that energy-efficient windows may come at a higher price point, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.
Requesting free quotes from multiple companies is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
Generally, there are two types of window replacement services companies offer: full-frame and pocket installations.
Full-frame installations are necessary when you want a new style or your window has significant rot. With this service, your installers will replace the total window, including the trim, frame and sill. A pocket installation means replacing a window within the existing frame, which tends to be cheaper than a full-frame installation.
If you're still trying to decide which type of installation you should get, you can ask your provider and get their advice. The decision mostly depends on the age of your window frames and if there's any damage.
Best Affordability
Window World
- Large serice area
- 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
- More expensive than competition
Best for Residential Windows
Window Nation
- Award-winning company
- Wide variety of products and services
- Custom designs
- Installation not covered by warranty
How We Choose the Best Window Installers in Westford
EcoWatch reviews differ from most reviews because we look at these companies through a sustainability lens. We have decided to assess the top window replacement companies in Westford primarily based on their energy efficient offerings, as it's what's best for the environment and for you as a homeowner. Energy-efficient windows can reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
Since this is a guide for Westford, we only included companies that serve the city. There are certainly other reputable providers that didn't make the cut because they wouldn't be able to serve homeowners in Westford.
Work Quality
We're willing to bet that you're not looking for a company to do a shoddy job installing windows. We've vetted each company included in our guide to make sure its technicians are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another very important review factor. If most customers don't have good feedback about their experience with a certain window installation company, you won't see it featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installers won't always provide the highest quality service. On the other hand, we want to make sure we're highlighting companies that offer a range of price and financing options so they're accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. That's why window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Westford's climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Westford window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Westford, MA Window Replacement FAQs
How much should window installation cost?
The national average cost of replacing a window is about $600 but can range between $200 and $1,200, based on several factors. The price is often 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 initially but can save you hundreds of dollars a year in energy bills.
Which type of window is the best?
Generally, double-pane windows are more efficient than single-pane windows and windows that don't open will be more efficient than windows that do. If you want 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.
What services do window replacement companies offer?
Window installation professionals cover the entire process — from replacing your old windows with brand new ones to cleaning up after the windows have been put in place. In addition, a lot of companies offer window manufacturing, customization and repairs.
How do you know it's time to replace your windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, then they probably need to be replaced. Other than that, if your windows have damage anywhere on them, or they have become difficult to operate, they may need to be replaced.
Should I replace all my windows at once?
If you want to get more efficient windows and save money on energy costs, replacing all of your windows at the same time is the only way to gain that benefit. On the other hand, if you have just one or two windows that are broken or leaky, you can replace just those.