Shingle Roof Replacement in Philadelphia, PA
Plenty of twins, single homes and mid-century rows in Philadelphia, PA sit under pitched asphalt shingle roofs. This page compares three-tab, architectural and impact-rated shingles, shows 2026 Pennsylvania prices and lists what to ask about layers, underlayment and permits. Then one independent local roofer can price your house in writing.
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Architectural, Three-Tab or Impact-Rated
Shingles are the usual covering on the city's pitched roofs, from twins in West and Southwest Philadelphia to the rows and twins of the Northeast. They cost less than metal or slate, and estimates for them are easy to compare line by line because the parts are standard.
The median owner-occupied home in Philadelphia was valued at $243,100 (Census Bureau, 2020–2024), so a new roof is a real share of what many houses are worth. Knowing the grades first helps you sort needed upgrades from optional ones.
What This Covers
- Three-tab shingles. Flat, single-layer shingles with an even, plain look. They are the lowest-priced grade and still cover many older roofs around the city.
- Architectural shingles. Thicker, laminated shingles with more depth and shadow. This middle grade costs a bit more than three-tab.
- Impact-rated shingles. Made to resist cracking from hail and flying debris. Some insurers credit Class 4 shingles on their own terms, so ask yours first.
- Ice-and-water shield. A self-sealing membrane laid under the shingles at the eaves, where ice dams can force meltwater upward. Ask how far up the roof it will run.
- Attic ventilation. Trapped heat and moisture can age shingles early. Ask how the attic will vent and whether the ridge or soffit vents will change.
- Algae streaks. Dark streaks on shaded slopes can be algae rather than wear. If they bother you now, ask whether algae-resistant shingles are an option.
Rough Numbers for Shingle Roof Replacement
RoofObservations' 2026 Pennsylvania guide gives the installed prices below, per square foot of roof surface, with the metal rows for comparison. They are statewide figures, and the guide notes the Philadelphia metro runs highest. A steep pitch, an extra layer to strip or rotten decking adds more.
| Cost row | Figure | Source (year) |
|---|---|---|
| Pennsylvania 3-tab shingles, per sq ft | about $6.45 | RoofObservations, 2026 |
| Pennsylvania architectural shingles, per sq ft | about $7.10 | RoofObservations, 2026 |
| Pennsylvania premium shingles, per sq ft | about $8.80 | RoofObservations, 2026 |
| Pennsylvania exposed-fastener metal, per sq ft | about $9.50 | RoofObservations, 2026 |
| Pennsylvania standing-seam metal, per sq ft | about $14.65 | RoofObservations, 2026 |
For a planning range based on your home size and roof steepness, try the cost calculator.
The Usual Sequence
- Send the form. One independent local roofer receives it, and no one else.
- The roof visit. The roofer counts the existing layers, checks the deck from the attic where possible and measures each slope.
- The written estimate. Look for the shingle grade, underlayment, ice-and-water shield, ventilation, flashing, drip edge and haul-away.
- The permit. Inside the city, an L&I permit is needed and a City-licensed contractor must do the job. Townships each set their own rules; settle who files the paperwork.
- Tear-off and install. Old shingles come off, damaged decking is swapped out, and the new roof goes on, followed by cleanup.
What Sets This Apart
Shingle jobs are where shortcuts hide most easily: a new layer laid over the old one, no ice-and-water shield at the eaves, or rusty flashing reused around a chimney. An estimate that names each item makes those choices visible before anyone climbs a ladder.
Before signing, check the roofer's Pennsylvania Home Improvement Contractor registration on the Attorney General's website (the state has no roofing license), and in Philadelphia ask for its City contractor license. Request proof of liability insurance and workers' comp, a fixed local address and references. Skip anyone who wants cash only or full payment up front.
Common Questions
Can new shingles go over the old ones?
Rarely in Philadelphia. Under the City's EZ re-roofing standard, a roof that is damaged or already has two or more coverings must be stripped completely. Townships write their own limits; Lower Merion Township, PA, for one, caps shingles at two layers. Ask the roofer to note the layer count in the estimate.
Are impact-rated shingles worth it here?
Wind and snow cause more roof trouble around Philadelphia than hail, so the case rests mostly on your insurer. If it credits Class 4 shingles, the upgrade may pay part of its way; if not, architectural shingles may be the better value. Ask your insurer and compare both options on paper.
Why do ice dams form on shingle roofs?
Warm air leaking into the attic melts snow on the upper roof, and the water refreezes at the colder eaves. The ridge of ice can push water under the shingles. Ice-and-water shield, insulation and attic venting all help, so ask the roofer how the estimate handles each.
How should I compare two shingle estimates?
Check that both list the same shingle grade, tear-off, underlayment, flashing and venting, plus a price per sheet for any rotten decking. A lower total often means something was left out.
You May Also Need
Weighing a longer-lived roof? See metal roof replacement. If only part of the roof is failing, read about roof repair or take the repair-or-replace quiz.
See Shingle Prices for Your Home
Send a short request with your address, the roof's age and any leaks you have noticed. Only one independent local roofer sees it; that roofer looks over the roof and sends back a written price. Roofers pay this site for each referral it sends; homeowners pay nothing.