20 Best Window Companies in Sanford, ME (2023 Reviews)
Looking to replace your home's windows? We've got all the information you need in this list of the top window installation companies.
We analyzed all the top-rated window companies in Sanford and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
A review of the top window installation companies in Sanford may not seem like the most compelling article on the EcoWatch site, but trust us, windows have a more direct impact on your life than you might think. If your house has old or damaged windows, your AC or heating system could be working extra hard to heat or cool your home. This means spending more on electric bills.
Thankfully, saving you energy with upgraded windows also helps our goals of reducing energy usage for the environment.
We've made this list of the best installation companies to help you in your research, so you can not only benefit from brand new windows, but also save money on your electric bills.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Sanford
The EcoWatch Reviews team assessed many window providers across Sanford to narrow our list down to the top ones. The providers we've reviewed in this article scored best in our categories: energy-efficient offerings, customer service, price, availability and more.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World provides windows expertise in Sanford. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation industry for about 27 years. Hundreds of positive reviews on customer review websites back the company'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 right company for you.
Energy Efficiency of Window World WindowsWindow World appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Sanford?Window World doesn’t have any pricing information listed on its website, but it's known for offering some of the most affordable window installations around. If you’d like more accurate pricing information, you can ask for a quote on the company’s website.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has over 27 years of experience in the industry, and it currently serves nearly every state except Mississippi and West Virginia. Hundreds of positive reviews on customer review websites back the company's reputation.
You may want to consider choosing Andersen if you're interested in a installer 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 shows 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 Sanford?Prices aren’t mentioned on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more accurate information on pricing, you can request a quote from the company.
We've recommended companies with good reputations, but note that some national companies have independently owned locations in Sanford, so your service may depend on your local crew. We have tried to be unbiased and transparent by describing pros and cons for each company reviewed.
More Window Companies in Sanford
Renewal by Andersen Window Replacement
Saco, ME-
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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Bay Windows
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Residential Windows
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Aluminum Window Frames
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Custom Window Designs
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Energy-Efficient Options
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Full-Service Installations
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Sliding Glass
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Window Replacement
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Double-Hung
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Fast Delivery
Window World of Southern Maine
Westbrook, ME-
Free assessment
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Educational Website
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Price Transparency
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Timely Service
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Good Customer Service
Services Offered
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Fast Delivery
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Sliding Glass
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Window Replacement
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Custom Window Designs
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Bay Windows
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Double-Hung
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Residential Windows
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Commercial Windows
Beach Glass & Window Company
Dayton, ME-
Educational Website
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Good Customer Service
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Price Transparency
Services Offered
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Commercial Windows
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Glass Showers
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Sliding Glass
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Residential Windows
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Window Replacement
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Custom Window Designs
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Fast Delivery
Portland Glass of Dover
Dover, NH-
Educational Website
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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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Residential Windows
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Commercial Windows
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Window Replacement
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Custom Window Designs
Portland Glass of Biddeford
Biddeford, ME-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Commercial Windows
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Window Replacement
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Custom Window Designs
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Residential Windows
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Glass Showers
Pella Windows & Doors of Scarborough
Scarborough, ME-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Sliding Glass
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Residential Windows
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Bay Windows
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Double-Hung
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Custom Window Designs
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Window Replacement
Pella Windows & Doors of Newington
Newington, NH-
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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Custom Window Designs
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Residential Windows
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Sliding Glass
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Window Replacement
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Fast Delivery
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Double-Hung
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Bay Windows
Granite State Glass
Wolfeboro, NH-
Good Customer Service
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Educational Website
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Price Transparency
Services Offered
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Glass Showers
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Window Replacement
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Fast Delivery
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Commercial Windows
David Deschaine Roofing
Scarborough, ME-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Residential Windows
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Window Replacement
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Custom Window Designs
Portland Glass of Portland
Portland, ME-
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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Residential Windows
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Glass Showers
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Commercial Windows
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Window Replacement
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Custom Window Designs
A-BEST Window
South Portland, ME-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Window Replacement
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Residential Windows
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Energy-Efficient Options
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Custom Window Designs
Paradigm Windows
ME, ME-
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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Bay Windows
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Sliding Glass
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Commercial Windows
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Custom Window Designs
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Window Replacement
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Residential Windows
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Double-Hung
The Window Source NH
Seabrook, NH-
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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Double-Hung
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Residential Windows
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Custom Window Designs
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Window Replacement
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Energy-Efficient Options
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Sliding Glass
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Bay Windows
Marvin Design Gallery by Eldredge
Portland, MEServices Offered
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Residential Windows
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Window Replacement
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Glass Showers
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Custom Window Designs
Pella Windows & Doors of Meredith
Meredith, NH-
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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Window Replacement
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Residential Windows
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Double-Hung
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Sliding Glass
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Custom Window Designs
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Bay Windows
F.B.I. Contracting LLC
Concord, NH-
Timely Service
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Good Customer Service
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Free assessment
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Educational Website
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Price Transparency
Services Offered
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Energy-Efficient Options
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Stained Glass
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Custom Window Designs
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Window Replacement
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Double-Hung
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Commercial Windows
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Residential Windows
Focalpoint Renovations
Seabrook, NH-
Price Transparency
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Educational Website
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Free assessment
Services Offered
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Full-Service Installations
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Commercial Windows
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Glass Showers
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Custom Window Designs
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Window Replacement
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Residential Windows
Morgan Exteriors
Hooksett, NH-
Good Customer Service
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Educational Website
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Free assessment
Services Offered
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Bay Windows
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Window Replacement
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Residential Windows
Universal Windows Direct of Manchester
Manchester, NH-
Good Customer Service
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Timely Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Full-Service Installations
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Double-Hung
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Sliding Glass
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Window Replacement
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Bay Windows
Beckett Glass & Aluminum
Concord, NH-
Price Transparency
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Free assessment
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Good Customer Service
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Educational Website
Services Offered
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Aluminum Window Frames
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Custom Window Designs
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Window Replacement
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Glass Showers
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Residential Windows
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Commercial Windows
Calculate how much you can expect to pay for window installation and replacement in Sanford, ME using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Sanford Saves You Money
When you upgrade to energy-efficient windows, you may see some perks, including:
- Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes tend to have windows that are outdated, leaky or maybe even damaged in some way. Updating your windows could help increase the value of your property if you decide to sell.
- Better temperature control in your home: Living in a warm city like Sanford often means depending on your air conditioner to keep your home cool. Energy-efficient windows can lower how much cool air is lost through your windows when cooling your home.
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, preventing fading of your furniture, carpet and other valuables.
- Save money on energy bills: According to the Department of Energy, heat gained or lost through windows makes up about 25-30% of household energy use. Replacing your windows with energy-efficient models can help reduce how much you have to pay, therefore saving you about 12% more on your bills.
Estimated Cost of Window Replacement in Sanford
Each window replacement company provides various services and has varying price points depending on several factors.
How Much Do New Windows Cost?
According to our research, the typical cost of installing a single window is about $600. However, window replacement costs can range from $200 to $1,200 a window. How much it will cost you depends on several factors, like type, material, number of windows, the location of your home, size and more.
It's important to note that windows with higher efficiency may cost more initially but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Sanford homeowners $383+ a year when replacing single-pane windows.
Costs will also vary depending on the material you choose for your window frames. Aluminum frames cost the least. They're sturdy, light and maintenance-free, but offer poor insulation. Vinyl frames are somewhat expensive and offer good insulation. Composite frames made from wood fibers encased in plastic also offer good insulation and are moderately expensive. Wood frames are the most expensive and are the most in-demand. They're also aesthetically pleasing and offer decent insulation for your home.
What Services do Window Installers Offer?
In regard to window replacements, in general there are two kinds that your installer will have: full-frame and pocket installations.
A full-frame installation is a total window replacement. This service involves taking out the old window, the windowsill, and the exterior and interior trim. It can also involve extra materials, including insulation and drip edges, which raise the overall cost of the project. It's also worth noting that you may have to touch up the paint around the window after a full-frame installation. Pocket installations (also known as retrofits) are when you replace a window without replacing the frame. Pocket installations are simpler and will be less expensive, but you can't do this type of installment if you have any pre-existing rot or water damage.
Your window installer can help you decide which type of installation you should get.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Sanford
In our search to find the most reliable, eco-friendly window installers in Sanford, the EcoWatch Reviews team assessed many companies before deciding on these. Along with energy efficiency, we reviewed each installer and ranked them using the following methodology:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installers that serve the Sanford area so you can find the right window installation company near you.
Work Quality
When picking new windows, the quality and variety of services often plays just as important of a role in insulation and performance as the brand you get. 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 customer feedback to find the companies with the highest rates of customer satisfaction. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across nearly every category, including professionalism, warranty, cost, quality of installation, quality of parts and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed, windows are a serious investment, so you'll want to make sure that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Sanford's climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of Sanford window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Sanford, ME Window Replacement FAQs
How much does window installation cost?
The typical cost to install a single window ranges between $450 and $650. There are many factors that affect the cost, including local labor costs, the materials used in designing the windows, the number of windows, your property's location, styles and sizes of windows and how energy-efficient the windows are.
Which type of window should I get?
A window's energy efficiency is affected by several factors, including the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are usually the most energy-efficient and are certified by the U.S. Department of Energy.
Can I install my own windows?
If you're handy and have experience with installing a replacement window, you may be able to install your own windows. However, if you don't have the time or experience, we recommend hiring a professional.
How long does it generally 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.
When is the best time of year to replace windows?
Replacement windows can be installed during any season, but autumn might be best. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into your house, so the temperature outside doesn't necessarily matter that much. What's most important is that the weather should be dry.