2017 EBSCO Research Best Pick
281-738-2412

Allied Siding & Windows

5th year as a Best Pick

  • A-Rated
  • Verified General Liability

"We install more Generations and Prism Simonton windows than anyone in Texas. We provide great prices for brand-name products installed by manufacturer-trained professionals with exemplary customer service. We're affordable, local, and reliable—three great reasons to choose Allied now and come back in the future."

Leonard Courtright | President

Areas Served:

West Houston Suburbs, North Houston Suburbs, Fort Bend County & Southwest Houston, The Heights/Midtown

  • Services Offered
    Allied specializes in installing brand-name window products for residential customers. Other home improvements include siding and gutter installation, roof replacement, attic radiant barriers, room additions, and custom patio covers.
  • Services Not Offered
    Allied does not offer repairs.
  • Warranty
    Allied Siding & Windows offers a lifetime labor warranty on all work, and Simonton products come with a transferable double-lifetime warranty.
  • Distinctions
    Allied is a Simonton Certified Master Installer and an EPA Lead-Safe Certified Firm.
  • Company History
    Allied has been serving Texas homeowners since 1988. Company president Leonard Courtright has over 25 years in the service industry.
  • Additional Information
    The company exclusively sells the private-label Generations window line from Simonton in the Houston, Dallas, and Austin areas.

Select Quotes from Customer Interviews

A selection of 369 homeowner reviews:


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Allied did window work for me. Everybody from the gentleman that did the review to the people that did the actual removal and installation was very professional and courteous. I'm very pleased. The overall experience was A+, and I've recommended them to others.
They replaced the front and back doors. The best part of the whole job was that when they found damage, they fixed it. They went above and beyond. It was an A+ experience.
They did good, quality work. They did siding and windows for me, and I was satisfied with all of their work. I would grade them as an A. I've recommended them already.
It was a great experience. Everything was done properly, and they cleaned up after their work. They did windows and two doors. I'd give Allied an A.
It was window work and it was excellent; I have no complaints.
They did excellent work. I would recommend them.
They did fine. They installed windows and there was stuff that needed to be redone. I like that they did good work. Overall, I'd give them an A+.
My windows are working fine as of today. I would say my overall experience was A+.
They did siding and windows for me. I would grade my overall experience an A.
They did window replacement for me. I had never gotten windows before, so I don't have anything to compare it to, but they're great. I'd give my overall experience with them an A. Everything went great and I would recommend them.
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