20 Best Window Companies in Wilton, NH (2023 Reviews)
Thinking of improving your house's value? The top window replacement companies can help.
We analyzed all the top-rated window companies in Wilton 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
The EcoWatch Reviews team is all about helping Wilton homeowners find eco-conscious solutions for their homes. According to the Department of Energy, heat gained or lost through traditional, outdated windows could make up 25-30% of heating and cooling usage.
That's bad news for both your bank account and the environment, but one of the best window installation companies can help you with that.
So if you're building a new home, renovating or changing out old windows in Wilton, this is the best place to get started.
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 Wilton
The EcoWatch Reviews team assessed many window companies in Wilton to find the top ones for our readers. The providers we've included in this article scored best in our categories, including energy-efficient offerings, availability, customer service, price 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 has windows expertise in Wilton. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window business for around 27 years. Hundreds of positive reviews on customer review websites back the company's reputation.
It has established itself as a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World’s commitment to sustainability shows in its 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 Wilton?Prices aren’t listed on Window World’s website, but it's known for offering some of the most affordable window installations around. Getting a free quote on its website is the best way to get more accurate information.

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 has the best availability in Wilton. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has been in the window business for around 27 years. Hundreds of positive reviews on customer review websites back the company's reputation.
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’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 Wilton?Prices aren’t listed on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Getting a free quote on its website is the best way to get more accurate 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 provides the best window installation for businesses in Wilton. It's an installer that mainly serves commercial and multifamily properties, and also specializes in railings. If you’re looking for residential window installations, you should probably refer to one of the other companies on this list. Aeroseal has over 23 years of experience in the industry, and it currently serves 13 states and Washington D.C. Hundreds of positive reviews from customers online back the company's reputation.
It has established itself as a company that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows carries 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. The company claims it helps businesses save on energy expenses and reduce their carbon footprints with energy-efficient windows, as well as practices like Low-E glass coating, weatherstripping and more.
How much does Aeroseal Windows cost in Wilton?Prices aren’t displayed on Aeroseal’s website, but it provides high-quality windows at a competitive price point. The best way to get more accurate pricing information is to request a free quote from the company.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct offers the best warranty in Wilton. It's a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has around 20 years of experience in the window replacement business.
Universal may be the company for you if you want one that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThe company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products. Not all of Universal’s offerings are Energy Star certified, so make sure you mention that you’d like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Wilton?Universal does not detail prices on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. The best way to know for sure is to receive a free quote from the company.
We have tried to stay unbiased and transparent by describing pros and cons for every installer. Additionally, any partnerships do not influence our reviews.
More Window Companies in Wilton
Renewal by Andersen of Boston
Northborough, MA-
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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Double-Hung
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Window Replacement
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Bay Windows
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Sliding Glass
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Commercial Windows
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Stained Glass
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Glass Showers
Window World of New Hampshire
Manchester, NH-
Free assessment
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Educational Website
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Good Customer Service
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Price Transparency
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Timely Service
Services Offered
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Double-Hung
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Sliding Glass
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Window Replacement
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Bay Windows
A Plus Energy Services
Milford, NH-
Free assessment
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Educational Website
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Price Transparency
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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Window Replacement
S R Windows & Doors Plus Inc
Amherst, NH-
Price Transparency
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Good Customer Service
Services Offered
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Sliding Glass
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Residential Windows
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Commercial Windows
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Custom Window Designs
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Window Replacement
Pella Windows & Doors of Bedford
Bedford, 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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Sliding Glass
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Double-Hung
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Window Replacement
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Residential Windows
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Bay Windows
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Custom Window Designs
Quantum Remodeling LLC
New Boston, NH-
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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Custom Window Designs
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Residential Windows
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Full-Service Installations
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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
Nashua Glass
Nashua, NH-
Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Fast Delivery
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Commercial Windows
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Custom Window Designs
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Window Replacement
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Tempered Glass
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Glass Showers
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Residential Windows
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Double-Hung
Dependable J M R Siding
Manchester, NH-
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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Residential Windows
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Fast Delivery
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Commercial Windows
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Double-Hung
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Window Replacement
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Custom Window Designs
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Sliding Glass
Granite State Glass
Manchester, NH-
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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Fast Delivery
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Custom Window Designs
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Aluminum Window Frames
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Glass Showers
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Commercial Windows
Rejean's Custom Quality Siding LLC
Manchester, NH-
Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Commercial Windows
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Residential Windows
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Custom Window Designs
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Window Replacement
Clear Choice Home Improvements
Manchester, NH-
Price Transparency
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Free assessment
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Good Customer Service
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Timely Service
Services Offered
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Bay Windows
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Fast Delivery
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Commercial Windows
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Glass Showers
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Double-Hung
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Window Replacement
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Residential Windows
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Custom Window Designs
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Sliding Glass
PIC Home Pros
Londonderry, NH-
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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Residential Windows
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Custom Window Designs
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Fast Delivery
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Window Replacement
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Glass Showers
Universal Windows Direct of Manchester
Manchester, NH-
Timely Service
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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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Bay Windows
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Commercial Windows
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Window Replacement
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Double-Hung
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Full-Service Installations
Queen City Glass & Mirror
Manchester, NH-
Price Transparency
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Good Customer Service
Services Offered
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Aluminum Window Frames
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Residential Windows
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Window Replacement
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Full-Service Installations
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Glass Showers
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Sliding Glass
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Commercial Windows
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Custom Window Designs
Fiori Construction LLC
Londonderry, 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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Window Replacement
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Custom Window Designs
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Residential Windows
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Commercial Windows
Solid State Construction
Shirley, MA-
Educational Website
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Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Custom Window Designs
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Window Replacement
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Commercial Windows
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Fast Delivery
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Residential Windows
C. Gosselin Siding & Windows
Manchester, NH-
Price Transparency
Services Offered
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Window Repair
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Sliding Glass
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Residential Windows
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Custom Window Designs
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Window Replacement
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Fast Delivery
Morgan Exteriors
Hooksett, NH-
Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Bay Windows
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Custom Window Designs
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Window Replacement
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Sliding Glass
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Double-Hung
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Residential Windows
Specialty Wholesale Supply
Gardner, MA-
Price Transparency
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Good Customer Service
Services Offered
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Double-Hung
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Window Replacement
Manny's Roofing
Pelham, NH-
Timely Service
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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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Window Replacement
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Custom Window Designs
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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 Wilton, NH 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 Wilton Saves You Money
By switching to energy-efficient windows, you can enjoy several benefits, including:
- Save on power bills: Once you upgrade to energy-efficient windows, you can see a reduction in your bills by about 12% since you'll use less energy to heat or cool your house.
- Protect your investment: The older your home is, the more likely it is that switching to energy-efficient windows will benefit you. Older homes usually have windows that are outdated, drafty or potentially even damaged in some way. Upgrading your windows could help increase the value of your property if you decide to sell.
- 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.
- Better temperature control in your home: Residing in a cold city like Wilton usually means relying on your heater to keep your house cool. Energy-efficient windows can cut back on how hard your heating system needs to work to heat your home.
Estimated Cost of Window Replacement in Wilton
Each window replacement company provides varying services and has varying costs depending on a few factors.
How Much Do New Windows Cost?
The average cost to install a single window is about $600 but can range anywhere from $200 to $1,200. But prices differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door installations, which will make your project cost more.
Keep in mind that energy-efficient windows may cost more upfront, but Energy Star predicts the upgrade will save you between $101 and $583 per year when you replace single-pane windows and between $27 and $197 per year when you replace double-pane, clear glass windows. Your savings will vary depending on your local climate, energy rates and individual home characteristics.
We advise getting free quotes from several window companies to find the right windows and the company that works best for your budget.
What Services do Window Installers Offer?
Generally, there are two kinds of window replacement services you can get: full-frame and pocket installations.
Full-frame installations are usually recommended when you want to change the style of your windows or your window has a lot of rot or deterioration. With this service, your installers will replace the complete window, including the sill, trim and frame. A pocket installation involves installing a new window within the frame that's already there. This means instead of tearing out the whole unit and rebuilding it, the contractor will just put the replacement window (also called a retrofit or insert window) into the frame.
If you're not sure which window installation service you should get, your installer should be able to advise you. Typically, the choice is influenced by factors such as the age and condition of the home, the type of building material, budget and time restrictions.
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 Wilton
EcoWatch reviews differ from most reviews because we're examining these companies through a sustainability lens. Along with energy efficiency, we evaluated each installer and ranked them based on the following methodology:
Service Area
This one is self-explanatory, but we've chosen to highlight window installation companies that serve the Wilton area so you can find the best window installation company near you.
Work Quality
We're certain that you're looking for a company to do a great job installing windows. We've vetted each installer included in our guide to make sure its contractors are well-qualified and that the company has received a lot of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent online reviews to find the companies with the highest rates of customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across most other categories, including quality of parts, professionalism, quality of installation, cost, warranty and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers try 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 give you lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have been in the industry for quite some time. Window installers that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.
Wilton, NH Window Replacement FAQs
How much does a window install cost?
The typical cost to install one window ranges between $450 and $650. There are a variety of factors that affect how much it costs, such as the number of windows, local labor costs, your property's location, styles and sizes of windows, how energy-efficient the windows are and the materials used in designing the windows.
Which kind of window should I get?
A window's energy efficiency depends on a variety of factors, including the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are usually the most energy-efficient and are certified by the U.S. Department of Energy.
Can you replace your own windows?
Although it is possible to install your own windows, doing so requires a lot of time and handiness. Hiring a professional can help ensure that the job is done properly and that you won't have to spend the time and effort to do it yourself.
What time of year should I replace my windows?
Even though you can install windows any time of year, warmer weather is usually better for installing replacement windows. Additionally, it shouldn't be raining, since rain can make the installation harder.