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Diamond Bar Window and Door Replacement

Since 2005, Design Windows and Doors has provided homeowners with the benefits of high-performance windows, doors, and whole-house fans. Our family-owned Diamond Bar window and door installation company insist on the best for our customers, so we only use top-rated brands and provide next-level service from start to finish.

But don’t take our word for it!

It only takes a look at images of our past work and browsing a few of our customer reviews to see the exceptional results you can expect when you choose us for:

Expertly Installed High-Performance Windows

Don’t let one more season go by in which you’re paying too much for your heating and cooling costs! Enjoy significant savings with high-performance windows from two brands, including:

  • Simonton Windows
  • Milgard Windows

You’ll have your choice of many styles, such as double-hung, bay, bow, picture, sliding windows, and more.

Stylish New Doors for Your Diamond Bar Home

Installing new doors is an upgrade that adds curb appeal, enhanced security, and energy efficiency to your Diamond Bar home. We provide entry and patio doors in many styles, so it’s easy to find one that suits your home. Expert installation ensures you’ll get the best possible performance from your new doors.

Enjoy a Cooler Home and Improved Air Quality with a Whole House Fan

A QuietCool whole house fan provides ventilation that keeps your home 5° to 10° degrees cooler and improves air quality by removing dust, pet dander, and other airborne impurities. Design Windows and Doors is pleased to install this top-rated brand of fan, which provides long-lasting performance at a competitive price.

Contact Our Top-Rated Diamond Bar Window and Door Specialists to Learn More

Design Windows and Doors loves helping customers add value, style, and energy efficiency to their homes. Contact us to learn more about all of our Diamond Bar services, including:

  • Replacement Windows
  • Replacement Doors
  • QuietCool Whole House Fans

Call today to speak with a member of our team or fill out our online form now to request a free, no-obligation consultation and accurate cost estimate.