Ireland Contracting is a Pittsburgh roofing contractor specializing in complete roof replacements and new installations: a full tear-off and system replacement, not new shingles laid over old ones. Family-owned in Glenshaw since 1994, we've roofed homes from the North Hills to the South Hills and the eastern suburbs. As an Owens Corning Platinum Preferred Contractor, a certification held by fewer than 1% of U.S. roofers, we install asphalt shingle roofing systems backed by manufacturer warranties of up to 50 years.
Every roof replacement starts with a free, no-pressure inspection. We get on the roof and into the attic, and we assess the decking, ventilation, flashing, and underlayment, not just the surface shingles, so the new system performs for its full lifespan in Western Pennsylvania's freeze-thaw climate. You get a written, itemized estimate that shows exactly what's included, and a straight answer if what you actually need is a repair rather than a new roof.
What you get with an Ireland roof: a complete tear-off to the deck, replacement of any rotted or soft decking, synthetic underlayment across the whole roof, ice-and-water shield at the eaves, valleys, and around every penetration, new step and counter flashing at walls and chimneys, Owens Corning Duration architectural shingles with SureNail fastening, and ridge and soffit ventilation sized to the attic. Because we are manufacturer-certified and install the full system to spec, the roof qualifies for the strongest available Owens Corning warranties, coverage a layover or a mixed-brand roof can't get.
Most residential roofs are done in one to two days. Our crews protect landscaping and siding, run a magnet sweep for nails, haul every scrap of debris, and walk the finished roof with you before we leave. We register the warranty for you so it's on file with the manufacturer, not in a drawer.
Storm and hail damage is one of the most common ways a roof replacement gets paid for. We document the damage, meet the adjuster, and handle the insurance paperwork with you. For an active leak, missing shingles, or emergency tarping, our roof repair team takes small jobs too. You don't need a storm or a claim to call.
Not sure the roof needs replacing? Small leaks and storm damage go to our Pittsburgh roof repair team .
Flat porch or addition roof? We handle flat roof repair and EPDM rubber roofing .
A new roof is the right time to replace failing gutters. See our seamless gutter installation .
See a full replacement from tear-off to finish in our roofing project videos .
Own one of Pittsburgh's century-old slate roofs? Don't replace it. See our slate roof repair .
Why Pittsburgh roofs fail early, and how we build for it
Western Pennsylvania is hard on roofs. Repeated freeze-thaw cycles work meltwater under shingles and into cracks, then expand it as it refreezes. That is the single biggest driver of premature shingle failure and leaks in the Pittsburgh area. Heavy wet snow adds load, and ice dams form at the eaves when escaping attic heat melts snow that refreezes at the cold roof edge. Summer brings the other half: thunderstorms with straight-line winds that lift poorly sealed shingles and hail that bruises the granule surface.
The housing stock compounds it. The brick homes in Mt. Lebanon, Dormont, and Squirrel Hill often have steep pitches, multiple dormers, and chimneys that were flashed with tar decades ago. The 1950s and 60s ranches and split-levels in Shaler, Ross, McCandless, and Bethel Park have low-slope sections and under-built attic ventilation that traps heat and moisture and cooks shingles from below. Many still carry two or three layers of old roofing, which is the reason a tear-off matters and a layover doesn't.
So we design each replacement around the house, not the shingle. Ventilation is calculated for the attic volume, ice-and-water shield runs well past the interior wall line at the eaves, every valley gets metal or membrane, and every chimney and wall gets new step and counter flashing rather than a smear of sealant. It's why the roofs we installed in the late 90s are still on.
We work from our Glenshaw headquarters, so a Pittsburgh roofer is usually on your roof for the inspection within a few days, and after a storm rolls through the North Hills we're already in the neighborhood.
What's included
- Free, detailed roof inspection and written estimate
- Complete tear-off and system replacement, not a layover
- Owens Corning Platinum Preferred Contractor (top 1% of U.S. roofers)
- Duration shingles, synthetic underlayment, ice-and-water shield, new flashing
- Ventilation designed for the attic, not just replaced
- Licensed and insured under PA #026195, family-owned since 1994
- Warranties up to 50 years on qualifying systems
- Insurance-claim documentation and support
- Daily site protection, magnet sweep, and full cleanup
Options we offer
- Owens Corning Duration architectural shingles
- Owens Corning TruDefinition and designer lines
- 3-tab asphalt shingles for budget re-roofs
- Synthetic underlayment and ice-and-water shield
- Ridge vent, soffit vent, and attic ventilation upgrades
- New step, counter, and chimney flashing
- Skylight replacement during the re-roof
- EPDM rubber for flat and low-slope sections
Roofing products we install
We install premium, manufacturer-backed product lines. Here are the brands we trust.
Owens Corning Duration® Series Shingles
Architectural shingles built with patented SureNail® Technology for a clean, dimensional look and outstanding wind resistance.
- Triple-layer reinforced 'no-guess' nailing zone for superior fastener holding
- Engineered to outperform top competitors in high-wind testing
Limited lifetime warranty plus a 130 mph wind warranty
Our roofing process
- 1 Free inspection & estimate. We inspect decking, ventilation, flashing, and shingles from the roof and the attic, then give you a written, itemized estimate with no pressure.
- 2 Materials & scheduling. You choose your shingle line and color; we schedule the tear-off and handle permits and, where applicable, insurance coordination.
- 3 Tear-off & deck check. We strip the old roof to the deck, inspect for rot, and replace any compromised decking before anything goes back on.
- 4 System installation. We install underlayment, ice-and-water shield at the eaves and valleys, new flashing, shingles, and ventilation to manufacturer spec.
- 5 Cleanup & warranty. We magnet-sweep for nails, haul away all debris, do a final walkthrough, and register your manufacturer warranty.
Roofing across Western PA
We provide roofing throughout the Greater Pittsburgh area and Western Pennsylvania, including:
- Pittsburgh / Allegheny County
- Butler County
- Washington County
- Westmoreland County
- Beaver County
- Glenshaw
- Wexford
- Gibsonia
- Fox Chapel
- Sewickley
- Shaler
- Mount Lebanon
- Upper St. Clair
- Bethel Park
- Monroeville
- Cranberry Township
- Mars
- Butler
- McMurray
- Canonsburg
- Murrysville
- Monaca
- Beaver Falls
- Beaver
- Aliquippa
- Conway
- Chippewa
- Darlington
- Freedom
- Baden