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Did you know?

The Window Source NH has an A+ business rating with the BBB!
We have pretty great reviews on Angie's List, too! We take our business seriously and put our customers first.

  • EPA Lead Safe
  • Installation Masters
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Replacement Windows by The Window Source Serving New Hampshire, Southern Maine, and Massachusetts

The Window Source’s Replacement Window Difference…

Are you a homeowner in New Hampshire, Southern Maine, or Massachusetts looking for new windows? Then Window Source is the perfect destination for you. We offer the highest-quality replacement windows available at factory-direct pricing. We guarantee our customers get a premium, energy-efficient product for a fraction of the cost of our competitors’ models. No need to shop at the Big Box stores ever again. That’s the Window Source advantage.

Need more than just windows? We also specialize in sliding doors, patio doors, and vinyl siding. Just fill out the quick form below and we’ll have one of our friendly sales professionals contact you right away.

Our Window Replacement Process

“Done right the first time”

Window replacement is a major decision for any homeowner. At The Window Source, we guide you through our process, from measuring to installation, one step at a time. When you choose The Window Source, you know your windows will be installed by certified professionals in a timely fashion. Measure twice, install once is our philosophy. You’ll wonder why you waited so long to call! We’re confident you’ll love how your new windows make your home look and feel, and we know you’ll love those new heating/cooling bills when you see the savings. Just fill out the form below for a free in-home consultation.

Why Our Replacement Window Service is The Best

100% Customer Satisfaction Guarantee

We aren’t happy unless you’re happy. Following every installation we make sure our customers are thrilled with their new windows, and that the jobsite is properly cleaned-up. We want our customers bragging to their neighbors about us!

We Offer Factory Direct Pricing

What does factory direct pricing mean to you? It means we cut out the middle man to save you money. Why deal with paying more from big box stores when we bring the windows to you right off the production line. Each job we have windows custom ordered to ensure they fit your home. All this service and competitive prices? That’s what factory direct means to you.

Our Replacement Windows Are 100% Green & Energy Efficient

Almost all of our windows are Energy Star® compliant. Low-emissive (Low-E) glass is window glass that has been treated with an invisible coating. Windows treated with Low-E coatings are proven to reduce energy consumption, decrease fading of fabrics, such as window treatments, and increase overall comfort in your home. Repeat after me… “LowE glass with the argon gas!”

We Are Family Owned and Operated

The Window Source of New Hampshire is a family owned business. From the consultation to the installation, we do it all!

Watch our commercial on WBIN-TV!

The Window Source NH recently finished a commercial with WBIN-TV, what do you think? We always bring you the safety, security, and dependability when providing you with professionally installed replacement windows. Our windows are energy efficient, too! So if you're in Maine, Massachusetts, or New Hampshire, then call us today!

*Please note: prices in commercial are subject to change. For latest pricing information call us or reference our website. Thank you!

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We would like to extend our gratitude to Graig the installer on how a great job he did on everything, right down  to the  clean-up. He was very professional and he let us know every step he was taking before he did them. We are also very please with the windows themselves. We are glad the we chose The Window Source, and will recommend you to everyone we know that wants new windows installed. Once again, it is a pleasure doing business with you.

July 18, 2016

Seabrook NH Office

99 Ledge Rd. Suite 7
Seabrook, NH 03874

Manchester NH Office

103 Liberty St
Manchester, NH 03104

Boxford MA Office

256 Georgetown Road Suite 8
Boxford, MA 01921

Over 50 Years Combined Experience In The Industry

(888) 282-2912

We Are HomeAdvisor Approved!

Get your fast & friendly free estimate today.

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Thank you for visiting The Window Source of NH, MA, and ME.
We look forward to talking with you!

Miss Pink Pagent - Life Is More Charity

The Window Source understands that Life is More!

The Window Source desires to support Local Charities! This past year we have had the privilege to link with a Community Park Renovation Team, support a local family adoption and most recently, The Miss Pink Pageant. Please call 1.888.282.2912 and speak to any of our representatives about this opportunity.

"I did want to mention one other reason why I chose to contact you and that was the reviews from your customers. Excellent reviews, of integrity, great quality and good workmanship! We want to partner with businesses with great reputations and people who want to help and serve the well being of others." - Tiffany, Organizer of The Miss Pink Pageant (