Doors N Windows - The Door and Window Specialists - Call us Toll-Free at (877) 218-4695

About Us

Doors N Windows has been serving the Inland Empire with window and door installation since 1985. Our service area includes Upland, Ontario, Claremont, Rancho Cucamonga, Chino, La Verne, Glendora, West Covina, Covina, San Dimas and Diamond Bar.

What You Can Expect From Us

  • The best deals on doors and windows
  • Knowledgeable information you can trust
  • Professional, fast service
  • The highest quality installation

Expect to save up to 20% against competitors prices on the same product & service!

Windows

Come Standard with:

  • 2 automatic locks
  • New LowE3
  • Vent stops
  • Even site lines
  • Stronger frame
  • Dual wall fins
  • New no tab screens
  • Tilt feature on SH
  • Double weather stripped
  • Easy slide action
  • Argon gas filled
  • Double strength glass
  • Lifetime warranty
  • Warranty includes accidental glass breakage

Patio Sliders

Come standard with:

  • Keyed lock
  • Easy slide action
  • Twin tandem ball bearing rollers
  • New LowE3
  • Screen
  • Additional secondary lock
  • Locked vent opening
  • Dual wall fins
  • Interior matching trim
  • Argon gas filled
  • Duel lock mortise
  • Lifetime warranty

Testimonials

I obtained six estimates before selecting The Door and Window Specialist. The knowledge and professionalism of the sales representative was the deciding factor, along with the price and unique outside design of the windows. The windows were installed on the date that TDWS promised and the installers arrived at the scheduled time. The installers were courteous and worked well together, and they completed the job in the established time frame. I am extremely pleased with the overall experience and especially how beautiful the windows are. Best of all, my neighbors are so jealous!! Thank you, TDWS!!!!

B. A. Camping
Glendale, CA

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Contact Us

Call us Toll-Free at (877) 218-4695.

Or schedule a welcome call to speak to a professional by filling out the form below!

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