(724) 941-8219

Family Owned and Operated Roofing Company

Professional Roofing Since 2002 


(724) 941-8219


Serving Allegheny and Washington Counties Since 2002
Family Owned and Operated

Knox's Construction
Washington County's Roofing Company

Knox's roofing company offers quality roof contracting, roofing replacement & repair, as well as expert siding, gutter and downspout products and services.  From areas surrounding Canonsburg to Washington and Ellsworth, you will find the same quality roofing.

Knox's Construction has all of the roofing solutions that you need for your Washington County home.  We offer competative pricing in addition to Certainteed's best available warranties.  As a CertainTeed Select ShingleMaster, we can offer way better roofing warranties that other roofing companies. We also cover all new roof installations with a 25 year workmanship warranty.


You just can go wrong when you select Knox's Construction as your roofing company.


Roofing is typically a pretty big investment, so select the roofing company that knows what we are are doing.  Experience goes a long way to affordability and expert roofing.

  • We needed a whole new roof. After his initial inspection, Mr. Knox took the time to explain what we needed, and did not try to up-sell us any extras that were not necessary, keeping the price very reasonable. The crew arrived on time and were extremely professional and efficient. The foreman on the job kept us updated, and they completed the job in less than two days. Roof looked great and the yard looked like no one was ever there. The crew even fixed some loose siding they noticed. They definitely knew their stuff. Highly recommended.
    Robert Vybiral
  • Only giving Chaz, Buddy & his crew 5 stars because this site won’t let me give them more. I don’t write reviews (ever) but wanted to share my experience with Knox Construction. Fast, super professional & did qualify work. Would recommend to anyone and already did!
  • These guys came here on Friday and went right to work, only stopping when a thunderstorm forced them stop. After it passed they stayed late and finished the shingles before stopping for the weekend. On Monday they finished the entire job and did it very quickly and efficiently. Very good clean up and great quality work and attention to detail. We will definitely recommend them in the future to anybody for work on their homes. Great job to Chaz and your crew!
    Cheryl Williams
  • Chaz and his crew are very professional. There were lots of choices for our roofing job and we are happy we chose Knox's construction. Great work at a fair price. Local company with his own crew. We are 100% satisfied.
    Ken H
  • Professional from the beginning to the end. Fairly priced, top-grade materials, good communication throughout. Chaz worked to squeeze us into the schedule because of our emergency. The crew members are highly skilled, hard-working, and true gentlemen. Offered excellent suggestions to resolve a couple unexpected issues.
  • They were professional, courteous and good at what they do. They showed up on time and worked quickly to replace our roof in just a few days. Chaz kept me well informed through the whole process. I am more than pleased with the way our roof looks as well. I definitely feel that I got my money’s worth and will definitely use them again when I have a need. I would like to thank Chaz and his crew for such a great job. A new roof is not a cheap expense and Knox’s Construction lived up too and far exceeded my expectations.
  • Completely satisfied. Had the roof and shed roof replaced as well demo of an awning and some gutter work for a very reasonable price. Chaz provided excellent communication before the project to schedule the work, during the project to provide updates and after to follow up and make sure everything was completed correctly. The crew arrived on time, started working immediately and cleaned up everything with no mess left behind at all. Would gladly hire Knox's Construction again.
    Brad Burkholder