Roofing Contractor in Canonsburg, PA

Roofing Services in Canonsburg

We offer a full range of residential and commercial roofing services to homeowners in Canonsburg and Washington County. From emergency repairs to complete roof replacements, Roofing Pro Plus handles it all.

• Roof Replacement
• Roof Repair
• Storm Damage Restoration
• Waterproofing
• Roof Inspection
• Siding
• Air Barriers

Pike Street and the Old Borough Along Chartiers Creek

Canonsburg's first lots were laid out along the old road that became Pike Street, between the town and Chartiers Creek. That is still where the oldest housing sits. Expect narrow frame and brick homes, some sharing a wall, many with a low-slope rear section over a kitchen or back porch. On these houses we often find two layers of shingles on the main roof and a patched rolled roof out back. Pennsylvania code allows two layers, but on a house this age we tear down to the deck so the sheathing can be checked. The shared walls and chimneys get new flashing, and the flat rear section goes back with a real membrane instead of another layer of roll roofing.

East Canonsburg's Tin Plate Era Streets

East Canonsburg was platted from old farmland starting in 1902, after the Standard Tin Plate Company built its works there. The street grid still reads like a mill suburb, with modest two-story frame houses on tight lots that are now well over a century old. Original board sheathing on these roofs has usually dried out and split along the nail lines. Chimneys tend to have lost their mortar caps, and most attics were built with no intake venting at all. A new roof on one of these homes works best with ridge venting paired with real intake at the eaves, plus step flashing cut into the chimney instead of tar smeared over the joint. Gutters matter here too, because many lots drain straight toward the house next door.

Split-Levels and Townhome Plans Along Route 19

Outside the borough, North Strabane and Peters Township filled in with split-levels, colonials and townhome plans along Route 19 and near the I-79 interchanges. Many of those homes are 15 to 25 years old now, which puts them at or near their first roof replacement. Plain three-tab shingles were common on that generation of houses. When they come off, most owners step up to architectural shingles, and we add ice and water shield through the valleys. We also look for bath fans that were ducted into the attic instead of out through the roof, a frequent cause of frosty sheathing in January. On townhome rows, check with your association before choosing a color, since the whole building usually has to match.

Flat Roofs at Southpointe and on Downtown Storefronts

Southpointe, the business park along I-79 in neighboring Cecil Township, is mostly office and flex buildings under large low-slope roofs. Downtown Canonsburg has a different kind of flat roof: older two- and three-story storefronts with membranes hidden behind brick parapets. Both kinds tend to fail at the edges and penetrations before the field of the roof wears out. We install TPO, EPDM and modified bitumen, and the right pick depends on drainage and how often people walk on the roof. These are the spots we check first on a Canonsburg commercial roof:

• Parapet caps and coping joints
• Scuppers and internal drains
• Seams around rooftop HVAC units
• Low areas that hold water after a rain

Frequently Asked Questions

Get a free roof estimate in Canonsburg

Tell us what is going on up there and we will come out to Canonsburg and take a look. No charge for the estimate, and no one will chase you afterward.

Free estimate in Canonsburg or call (412) 510-2666

Also serving nearby communities:

• Peters Township
• Upper St. Clair
• South Fayette
• Bethel Park
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