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The Family-Owned Window & Door Replacement Company Trusted by Homeowners Across NH, ME, & MA

At Window Authority Inc., we believe in taking a back-to-basics approach to business. Instead of using high-pressure sales tactics or gimmicks to get customers to spend more than they need to on new windows or exterior doors, we simply deliver the high-quality products homeowners want at the fair and honest prices they deserve. We’re a local, family-owned business, and we’ve worked hard to establish ourselves as the window company our customers can trust for a home improvement experience like no other.

Our Window & Door Replacement Solutions

Your house windows and exterior doors can affect everything from your home’s curb appeal to its energy efficiency, and no one understands that better than Window Authority Inc. That’s why we offer best-in-class replacement windows and doors, including options for:

No matter which product you turn to us for, you can rest assured that you’ll receive top-notch service from a team of trained experts who put your needs above all else.  

Areas We Serve

Based in North Reading, Massachusetts, we are proud to serve homeowners in:


1. Southern New Hampshire:

2. Southern Maine:

  • Berwick
  • Portland
  • Saco
  • Sanford
  • Wells
  • York

3. Northern Massachusetts

If you don’t see your city on this list, don’t worry. Feel free to reach out to our team to see if we can install new windows or doors at your home in a nearby community.  

Get Started With the Local Window Company of Choice

Don’t settle for windows or doors from just any company out there. Instead, turn to Window Authority Inc. for high-quality products and dedicated service that will have you feeling completely confident in your investment. For more information about the services we offer and the areas we serve, contact us today.

Five-Star Reviews

Read Our Testimonials

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Paul Smith

Tampa, FL

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Paul Smith

Tampa, FL

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Paul Smith

Tampa, FL