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(724) 941-8219

Serving Allegheny and Washington Counties Since 2002

Family Owned and Operated - No Subcontracting Here

(724) 941-8219


Serving Allegheny and Washington Counties Since 2002
Family Owned and Operated
No Subcontracting Here

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ROOFING -- You can put your trust in Knox's Construction

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SIDING - We install and replace with many beautiful siding options

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The Best Custom-Fit Seamless Aluminum Gutters

Knox's Construction installs seamless
aluminum gutter systems that we
manufacture on-site to meet the
exact specifications of your home.

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Knox’s Construction
Home Improvement & Roofing Company

Knox's Construction, located in Canonsburg, PA has offered roof repair, roof replacement, siding as well as gutter & downspout repair and replacement for over a decade.


We offer expert workmanship, quality and customer service.
Our skilled siding and roofing contractors have the  resources needed to get the job done right and ensure your satisfaction.


We’re a family-owned contracting and roofing company that cares about every home improvement project, no matter how large or small. Whether you need minor repairs or a major renovation, rest assured your job will be done right the first time.


Our Quality Services

Roofing company in the Pittsburgh, Washington and Allegheny County Areas

25 Year Workmanship Warranty!
You can trust Knox Construction.
No subcontracting • Professional roofers.

Siding installation in Pittsburgh, Washington and Allegheny County

We carry many beautiful siding options!
Repair or Replace your home's siding with confidence. 

Window Installation in Allegheny County, Washington County and Pittsburgh

Protect Your Home.
We are a company that can repair, replace or clean your gutters and protect them from leaves and debris.

Installation of Roof, Siding and Windows - Pittsburgh - Washington and Surrounding Areas

Our roofers are some of the best in the industry,
and it’s why we can offer an
on all of our roofing projects.


To maintain our high standards for quality, Knox's Construction does not subcontract any work. Our hand-selected roofing, siding and window installers must complete extensive training programs and pass certification before they can work on any of our projects.



  • We needed a whole new roof, decking and all. We spoke with Mr. Knox at the Pittsburgh Home Show and he personally came out a few days later to work on a quote. We selected Knox's Construction out of six other crews based on price, high quality materials (we selected Certainteed's Landmark Pro), shingle manufacturer certifications, and high customer ratings. 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. Took a couple of months to get the job started due to the weather, but once we got on the schedule we were contacted a week ahead of time to make sure everything was a go. 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
  • We would like give a shout out to these guys on the new roof and gutters they just completed on our home. 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. They are a local family owned company which we like dealing with and they do their own work, no sub contracting. We will definitely recommend them in the future to anybody for work on their homes. Look for them at the Home and Garden Show next March. 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
  • After a wind storm caused significant damage to our roof, we were referred to Knox's Construction by a friend who was familiar with their work. Professional from the beginning to the end. Fairly priced, top-grade materials, good communication throughout. Chad 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.
  • I am very impressed with the service that we received from Knox’s Construction. Buddy and crew replaced our roof about 3 weeks ago. 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 (a full 8-man crew!) arrived on time, started working immediately and cleaned up everything with no mess left behind at all. The entire project was completed in just one day! Would gladly hire Knox's Construction for additional work, if needed, and highly recommend them!
    Brad Burkholder