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Ireland Contracting logo, 1-800-NEW-ROOF
Residential neighborhood in Allegheny County near Pittsburgh, PA

Areas We Serve

Allegheny County Roofing & Exterior Services

Roofing, siding, and exterior services across Pittsburgh and all of Allegheny County.

Allegheny County is Ireland Contracting's home turf. Our headquarters sits in Glenshaw, just north of Pittsburgh. From the North Hills to the South Hills and the eastern suburbs, we've protected county homes from heavy snow, wind, and freeze-thaw cycles for over 30 years.

Roofing a county built on hillsides

Allegheny County is 130 separate municipalities wrapped around Pittsburgh and its three rivers, more than any other county in Pennsylvania, and very little of it is flat. Homes sit on cut-and-fill hillsides in the North Hills, on ridge tops above the valleys, and on tight lots in the river boroughs. That terrain decides how a job runs before a single shingle comes off: where the dumpster goes, how material reaches the roof, and how we protect landscaping on a steep lot.

It also decides where roofs fail. North-facing slopes on a shaded hillside hold snow and ice long after the sunny side has cleared, and the low-slope porch and addition roofs tacked onto older houses are the first place we look when a homeowner calls about a winter leak.

The oldest housing stock in the region

The median Allegheny County home was built in 1957, and 28 percent of the county's houses went up before 1940, the highest share of pre-war housing anywhere we work. Only about one home in ten dates from 2000 or later. In practice that means brick foursquares and Tudors in the inner-ring boroughs, capes and ranches from the postwar townships, split-levels and colonials in the 1970s and 80s plans, and comparatively little new construction outside the northern and southern growth corridors.

Each era shows up differently on an estimate. The oldest houses often still carry original slate that needs targeted repair rather than a tear-off. Midcentury homes tend to have undersized gutters and attics that were never properly vented. The 1980s plans are where we find first-generation vinyl gone brittle and chalky over shingles well past their service life.

What our weather actually does to a roof

NOAA's 1991 to 2020 normals for Pittsburgh International put average annual snowfall at 44 inches and annual precipitation at just under 40 inches. The number that matters more for a roof is the roughly 80 days a year when the temperature climbs above freezing and drops back below it. Every one of those cycles works at flashing, at sealant, and at any water already sitting in a seam.

Summer brings the other half of the problem. The straight-line thunderstorm wind that knocked out power to more than 400,000 homes across the region on April 29, 2025 hit Allegheny County communities including Gibsonia, Allison Park, and Monroeville hard enough to take nine days to fully restore. Wind damage of that kind lifts and creases shingles without them ever leaving the roof, which is why an inspection after a storm is worth doing even when nothing looks obviously wrong from the ground.

Our services in Allegheny County

Communities we serve in Allegheny County

Nearby areas

We also serve Pittsburgh, North Hills, South Hills, Ross Township, McCandless, and the surrounding communities.

Allegheny County FAQs

Does Ireland Contracting serve Allegheny County?

Yes. Ireland Contracting provides roofing, roof repair, siding, windows, gutters, and more throughout Allegheny County, PA. We've served the area since 1994 and offer free estimates.

Do you offer free estimates in Allegheny County?

Yes. We provide free, no-pressure in-home estimates in Allegheny County. Just call (412) 492-7663 to schedule.

Is Ireland Contracting licensed and insured to work in Allegheny County?

Yes. Ireland Contracting is licensed, bonded, and insured under PA License #026195, serving Allegheny County and the surrounding area.

Do you work on steep hillside properties in Allegheny County?

Yes. Hillside lots are routine work for us across the county. We plan access, staging, and property protection during the free estimate so there are no surprises on install day.

Which parts of Allegheny County do you cover?

All of it, from the North Hills communities near our Glenshaw headquarters to the South Hills, the East End, and the river towns. Our crews work the whole county from one location.

Serving Allegheny County: get your free estimate

Get a no-pressure inspection and written estimate. Family-owned, certified, and trusted across Western PA since 1994.

1-800-NEW-ROOF Free Estimate