Permit
Ask Haverford first
Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The township code office can say what Haverford requires.
Source: 34 Pa. Code § 403.1(b)
Roof Replacement in Haverford, PA
The median home in Haverford was built in 1950; there are 18,637 of them. What the code requires when that roof is replaced, and who signs off, is below.
New Roofing Costs connects homeowners with independent local roofing contractors. We do not perform roofing work.
Call (833) 781-1806 Replacement and new roofs only · homeowners
This number connects homeowners who are planning a new roof or a full roof replacement with independent local roofing contractors. It is not for leak repairs or patch jobs. The call must come from the homeowner who decides on the roof. Calls may be recorded.
The rules for a reroof in Haverford
Layers
Two layers means a tear-off
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 90% of Haverford’s homes were built before 1980, ask what is under the newest layer.
Ice barrier
Set by the local climate table
The code requires an ice barrier where the local climate table (Table R301.2) says so, and each Pennsylvania municipality fills that table in. Ask the township code office or the contractor what Haverford’s says.
Checked against the code text on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
Homes and roofs in Haverford
Of 18,166 occupied homes in Haverford, 15,873 (87%) are owner-occupied. Counting by decade, 32% before 1940, 75% before 1960, 90% before 1980 of the housing was in place, and 4% dates from 2000 on. (ACS 2020–2024.)
The housing is 68% detached houses, 19% attached single-family houses (rowhouses, twins and townhouses).
Older houses hide their history: ask the contractor to confirm the deck (board or sheet) and every layer above it before pricing, because slate or two layers mean a full tear-off.
Of the 48 Delaware County municipalities on this site, Haverford has the 12th largest share of homes built before 1980: 90%, against a county range of 20% to 98%.
ZIP codes: 19003 · 19041 · 19083
Haverford and the towns around it
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Haverford | 1950 | 90% | 87% | 19% | 15 |
| Marple | 1962 | 75% | 84% | 9% | 16 |
| Upper Darby | 1948 | 92% | 58% | 48% | 12 |
| Narberth | 1938 | 94% | 55% | 18% | 18 |
| Lower Merion | 1955 | 81% | 75% | 12% | 18 |
| Millbourne | 1944 | 93% | 34% | 36% | 14 |
Median built: median year the homes were built. Before 1980: share of homes built then. Owners: share of homes that are owner-occupied. Row, twin: share of homes that are rowhouses, twins or townhouses. Census ACS 2020–2024. Hail days: days with hail of 1 inch or larger within 10 miles, 2006–2025, NOAA Storm Prediction Center.
Hail and storms near Haverford
Within 10 miles of Haverford, hail of an inch or more was reported on 15 days between 2006 and 2025, the biggest stones 1.75 in on June 6, 2023. The most recent was April 4, 2025.
At the county level, Haverford shares Delaware County’s record of 3 storm disaster declarations since 2006, the newest DR-4618 (Remnants of Hurricane Ida, September 2021). (OpenFEMA.)
Storm reports are what observers logged, not a measure of damage to any roof. When wind or hail damage means a new roof.
What goes on the roof next
Useful life is HUD’s planning figure, not a warranty. More in the guides to shingles, metal, slate and flat roofs.
| Material | HUD useful life | Fits a house like | Watch for |
|---|---|---|---|
| Asphalt shingles | 20 years | Most pitched roofs; 68% of homes here are detached | Wind class set by the design wind speed (IRC Table R905.2.4.1) |
| Metal (standing seam, panels) | 50 years | Roofs that will carry solar later | A complete standing-seam system may go over the old roof (R908.3.1) |
| Slate | 75 years | Older houses; 32% here predate 1940 | Never a base for a new layer (R908.3.1.1); heavy |
| Flat roof: EPDM or TPO | 15 years | Low-slope roofs and rear sections (19% of homes here are attached) | Coating is not a replacement |
Checking a contractor in Pennsylvania
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Haverford and look it up.
Contracts, deposits and the right to cancel: checking a roofing contractor. What moves the price: new roof cost in Pennsylvania.
Questions about a new roof in Haverford
Is a permit required for a new roof in Haverford, PA?
Ask Haverford first. Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The township code office can say what Haverford requires.
Do the old shingles have to come off in Haverford?
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 90% of Haverford’s homes were built before 1980, ask what is under the newest layer.
When were most homes in Haverford built?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Haverford was built in 1950, 90% of homes were built before 1980, 87% are owner-occupied.
How often does hail hit Haverford?
Hail of 1 inch or larger was reported on 15 days within 10 miles of Haverford from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
What license or registration should a roofer in Haverford have?
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Haverford and look it up.
What they will ask on the phone
- Where the house is: the Haverford address or ZIP
- One story or two (or more), detached or attached
- The roof you have today, shingle, metal, slate, tile or flat, and its rough age
- Whether there is one layer or more, if you know
- That the job is a full replacement or a new roof, and your timing
- Whether the house is in a historic district or an HOA
- That you own the home and decide on the roof
The full list: before you call.