27 Best Window Replacement Companies in Sandown, NH (Mar 2023)
Window Companies Near Me
When it's time to upgrade your windows, our guide to the top window installation companies can help you find the provider for you.
We analyzed all the top window installers in Sandown and selected the top 27 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
A guide on the best window replacement companies in Sandown may not seem like the most riveting article on the EcoWatch site, but trust us, windows impact your life more than you might realize. Poor windows can decrease your home's energy efficiency by up to 30%, according to the Department of Energy. In Sandown, that's almost $435 a year that you could save on your electricity bills after making the switch.
That's not great for either your wallet or the environment, but one of the best window installation companies can help you with that.
Unlike other sites, EcoWatch ranks window replacement companies based on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Large serice area
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Great industry reputation
- Award-winning company
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Great industry reputation
- Many years of experience
- Low number of customer complaints
- Not ideal for residential installations
Best Window Replacement Companies in Sandown
The EcoWatch Reviews team evaluated dozens of window companies in Sandown to find the top ones for our readers. The providers we've included in this article scored best in our categories, which include energy-efficient offerings, availability, price, customer service and more.

Window World
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EnergyStar Partner
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Lifetime warranty
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Large serice area
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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. This company has 27 years of experience in the windows business, and it has established itself as one of the most reputable companies in the business. Its reputation is backed by hundreds of positive reviews from customers online.
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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's windows are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Window World cost in Sandown?Window World does not display prices on its website, but it's known for offering some of the most affordable window installations around. If you'd like more accurate information, you can get a quote on the company's website.

Renewal by Andersen
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Member of US Green Building Council
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Great industry reputation
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Award-winning company
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More expensive than competition
Renewal by Andersen has the best availability in Sandown. Andersen has been in the window installation business for about 27 years.
If you're looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the right provider for you.
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 Sandown?Prices aren't available 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. If you'd like to know for sure, you can inquire about a quote on the company's website.

Aeroseal Windows
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Great industry reputation
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Many years of experience
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Low number of customer complaints
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Not ideal for residential installations
Aeroseal Windows has the best window installation for businesses in Sandown. This window installation company has been operating since 1999 and currently provides services to 13 states and Washington D.C. Its reputation is backed by many positive reviews on customer review websites.
Aeroseal may be the company for you if you want one 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 Sandown?Prices aren't listed on Aeroseal's website, but it provides high-quality windows at a competitive price point. You can inquire about a free quote on its website for more information about the cost.

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 has the best warranty in Sandown. Universal has about 20 years of experience in the windows industry, and it currently serves 27 states nationwide. Its reputation is backed by all the positive reviews from customers online.
If you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the company for you.
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 windows are Energy Star certified, so be sure to mention that you'd like Energy Star windows when inquiring.
How much does Universal Windows Direct cost in Sandown?Universal does not list 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. If you'd like to know for sure, you can request a quote on the company's website.
We strive to stay unbiased and transparent by including pros and cons for each company. Additionally, any partnerships do not affect our reviews.
More Window Replacement Companies in Sandown
Coastal Windows & Exteriors
Beverly, MA-
Helps Educate Customers
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Locally Recognized for Quality
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Free Quotes
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Price Transparency
Services Offered
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Architectural Glass
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Stained Glass
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Sliding Glass
Merrimack Valley Glass & Mirror
Newburyport, MA-
No-fee Quotes
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Timely Service
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Educational Website
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Excellent Customer Service
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
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Stained Glass
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Residential Windows
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Business Windows
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Sliding Glass
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Aluminum Window Frames
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Glass Showers
NEWPRO
Woburn, MA-
Free Quotes
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Good Customer Service
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Helps Educate Customers
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No-Hassle Pricing
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
Nashua Glass
Nashua, NH-
Price Transparency
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Good Customer Service
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No-fee Quotes
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Award-Winning
Services Offered
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Residential Windows
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Architectural Glass
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Tempered Glass
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Doors
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Custom Window Designs
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Business Windows
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Double-Hung
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Sliding Glass
Northern Glass LLC
Ipswich, MA-
Reliable Service
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No-Hassle Pricing
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No-fee Quotes
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Good Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Tempered Glass
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Doors
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Custom Window Designs
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Full-Service Installations
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Business Windows
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Sliding Glass
The Window Source NH
Seabrook, NH-
Helps Educate Customers
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Locally Recognized for Quality
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Good Customer Service
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No-fee Quotes
Services Offered
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Architectural Glass
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Fast Delivery
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Energy-Efficient Options
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Custom Window Designs
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Double-Hung
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Sliding Glass
Window World of Boston
Woburn, MA-
Excellent Customer Service
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Helps Educate Customers
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No-fee Quotes
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Reliable Service
Services Offered
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Sliding Glass
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Custom Window Designs
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Energy-Efficient Options
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Double-Hung
Timberlane Glass and Mirror
Plaistow, NH-
Helps Educate Customers
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Price Transparency
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Full-Service Installations
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Business Windows
Southers Construction
Dover, NH-
Excellent Customer Service
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Helps Educate Customers
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Locally Recognized for Quality
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No-Hassle Pricing
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Window Designs
Weaver Glass LLC
Beverly, MA-
Excellent Customer Service
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Educational Website
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No-Hassle Pricing
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Free Quotes
Services Offered
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Residential Windows
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Glass Showers
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Doors
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Custom Windows
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Commercial Windows
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Double-Hung
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Sliding Glass
Rite Window
Woburn, MA-
Free Quotes
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Locally Recognized for Quality
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Excellent Customer Service
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Educational Website
Services Offered
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Custom Window Designs
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Glass Showers
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Energy-Efficient Options
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Double-Hung
Pro Entry Installs LLC
Salem, NH-
Reliable Service
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Helps Educate Customers
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No-Hassle Pricing
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Excellent Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Double-Hung
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Bay Windows
Window World of New Hampshire
Manchester, NH-
No-Hassle Pricing
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Good Customer Service
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Educational Website
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Charitable Giving
Services Offered
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Custom Windows
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Architectural Glass
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Sliding Glass
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Double-Hung
A&A Services Home Improvement
Salem, MA-
Free Quotes
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Arrives on Time
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No-Hassle Pricing
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Educational Website
Services Offered
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Custom Window Designs
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Fast Delivery
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Architectural Glass
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Double-Hung
Melrose Glass Co
Melrose, MA-
Educational Website
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No-Hassle Pricing
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Locally Recognized for Quality
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Free Quotes
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Business Windows
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Double-Hung
Guaranteed Aluminum & Vinyl Inc
Lowell, MA-
Consistent Workmanship
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Good Customer Service
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Price Transparency
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No-fee Quotes
Services Offered
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Residential Windows
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
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Double-Hung
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Sliding Glass
Demers Plate Glass Co
Haverhill, MA-
Educational Website
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Free Quotes
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Good Customer Service
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No-Hassle Pricing
Services Offered
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Residential Windows
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Architectural Glass
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Doors
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Custom Window Designs
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Aluminum Window Frames
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Business Windows
Pella Windows & Doors of Woburn
Woburn, MA-
Helps Educate Customers
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Good Customer Service
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Award-Winning
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Gives to charity
Services Offered
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Custom Windows
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Sliding Glass
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Double-Hung
Clear Choice Home Improvements
Manchester, NH-
Dependable Service
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Locally Recognized for Quality
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Arrives on Time
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Price Transparency
Services Offered
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Custom Window Designs
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Sliding Glass
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Double-Hung
Milford Windows & Siding
Milford, NH-
No-fee Quotes
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Good Customer Service
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Educational Website
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Consistent Workmanship
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
Queen City Glass & Mirror
Manchester, NH-
Dependable Service
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Price Transparency
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Excellent Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Commercial Windows
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Sliding Glass
Pane Free Glass
Manchester, NH-
Price Transparency
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No-fee Quotes
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Good Customer Service
Services Offered
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Residential Windows
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Glass Showers
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Custom Windows
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Full-Service Installations
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Commercial Windows
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Double-Hung
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Sliding Glass
Blind Gallery New England
Stratham, NH-
Excellent Customer Service
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Dependable Service
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No-Hassle Pricing
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No-fee Quotes
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Energy-Efficient Options
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Sliding Glass
Alton Bay Blinds of New England
Hampton, NH-
No-Hassle Pricing
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Helps Educate Customers
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Free Quotes
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Good Customer Service
Services Offered
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Custom Window Designs
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Sliding Glass
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Business Windows
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Double-Hung
Concord Lumber & Building Center
Littleton, MA-
Price Transparency
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Helps Educate Customers
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Excellent Customer Service
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Reliable Service
Services Offered
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Custom Window Designs
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Fast Delivery
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Residential Windows
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Commercial Windows
Atlantic Window Warehouse
Newburyport, MA-
Good Customer Service
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Helps Educate Customers
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No-Hassle Pricing
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Timely Service
Services Offered
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Custom Windows
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Residential Windows
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Sliding Glass
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Double-Hung
City Mirror & Glass Co
Lowell, MA-
Free Quotes
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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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Glass Showers
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Residential Windows
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Custom Window Designs
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Business Windows
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Sliding Glass
How Installing Energy-Efficient Windows in Sandown Saves You Money
There are quite a few perks of upgrading to energy-efficient windows. Some reasons you may want to consider making the change include the following:
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes usually have windows that are outdated, drafty or maybe even damaged in some way. Upgrading your windows could help increase the value of your home if you decide to sell.
- Save money on electricity bills: The Department of Energy estimates that heat gained or lost through windows makes up around 25-30% of household energy use. Upgrading to energy-efficient windows can help lower that number, which helps you save more on your bills.
- Reduce your carbon footprint: You can reduce your carbon footprint by about 12% when you install Energy Star certified windows. In Sandown, that's about 152 pounds per year on average.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
Estimated Cost of Window Replacement in Sandown
Windows come in various shapes and sizes, so costs and services will differ remarkably. Here are the typical costs and the primary services that you can find from the average window installation company.
How Much Do New Windows Cost?
Typically, Sandown homeowners can anticipate their window installations to range from $250 to $1,200. The most common installations sit at around $600. These numbers are based on specific characteristics of your installation, including the location of your home, material, type, size, number of windows and more.
It's important to note that windows with the best efficiency may cost more initially but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save Sandown homeowners $435+ a year when replacing single-pane windows.
Something else that influences the overall cost is the material you pick for your frame. Aluminum frames are generally the least expensive and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames are the most expensive because they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.
What Services do Window Installers Offer?
The first thing to ask yourself when planning on installing new windows is: Do you need a full-frame installation or a pocket installation?
Full-frame installations involve replacing the whole window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has significant damage. Full-frame installations are more time-consuming and will increase overall costs. A pocket installation involves replacing a window within the existing frame, which tends to be less expensive than a full-frame installation.
Your window installation company will be able to help you figure out what's best for your needs. In Sandown, the decision will mostly be based on how old your windows are and if there's any moisture damage. Wood can decay if not properly maintained over the years, so it's a good idea to have a professional evaluate your frames and window sills.
Best Affordability
Window World
- EnergyStar Partner
- Lifetime warranty
- Large serice area
- Quality of service will depend on your area
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Great industry reputation
- Award-winning company
- More expensive than competition
Best for Businesses
Aeroseal Windows
- Great industry reputation
- Many years of experience
- Low number of customer complaints
- Not ideal for residential installations
How We Choose the Best Window Installers in Sandown
EcoWatch reviews differ from most reviews because we evaluate these companies through a sustainability lens. Along with energy efficiency, we analyzed window companies all across the state and assigned rankings using the following methodology:
Service Area
This one is self-explanatory, but we've chosen to highlight window installers that serve Sandown so you can find the right window installation company near you.
Work Quality
We're willing to bet that you're looking for a company to do a great job installing windows. We've vetted each installer on this list to ensure its technicians are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent online reviews to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the most important factor, as it indicates the quality of services across most other categories, including warranty, professionalism, quality of parts, quality of installation, cost and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers' prices, we gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed, windows are a significant investment, so you'll want to be certain that investment is protected. Window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Sandown's climate, homeowners need to be wary of rot, low efficiency and water damage. We factored in local experience to reflect the ability of Sandown window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Sandown, NH Window Replacement FAQs
How much should a window install cost?
The national average cost to replace a window is around $600 but can range between $200 and $1,200, based on a variety of factors. The price is typically influenced by the size of the window, the type and material of the window and the location of your property. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
What are the different kinds of windows?
The most common kinds of windows for homes include: awning windows, slider windows, casement windows, transom windows, double-hung and single-hung windows, bay windows and picture windows.
Do you really have to use a window installation company?
You should use a window installation company whenever you want new windows. Installing windows is a involved process that can be difficult and time-consuming, so it's best left to the professionals.
When is the best time of year to replace windows?
Although you can install windows any time of year, warmer weather is usually better for installing replacement windows. Additionally, the weather should be dry, as rain can make the installation harder.
Should I replace my windows all at once?
If your windows are greater than 20 years old, you most likely need to replace all of them. By that point, they are often less efficient, leakier and/or more damaged than new windows. Replacing your windows all at the same time will involve less paperwork and less time.