Berwick Borough has 4,927 homes, and half of them were standing by 1954. The rules below decide how much of the old roof has to come off and what goes under the new one.
New Roofing Costs connects homeowners with independent local roofing contractors. We do not perform roofing work.
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 Berwick Borough
Permit
Ask Berwick Borough first
The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). Whether Berwick Borough wants a permit is in its own ordinance; ask the borough code office before the old roof comes off.
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 87% of Berwick Borough’s homes were built before 1980, so count the layers before comparing quotes.
The code requires an ice barrier where the local climate table (Table R301.2) says so, and each Pennsylvania municipality fills that table in. The contractor or the borough code office in Berwick Borough will know.
Rules as read on October 24, 2026. Code edition, permit and contract rules for the whole state: roof replacement in Pennsylvania.
Homes and roofs in Berwick Borough
Of 4,643 occupied homes in Berwick Borough, 2,801 (60%) are owner-occupied. By year built, 36% before 1940, 56% before 1960, 87% before 1980; 3% went up in 2000 or later. (ACS 2020–2024.)
By building type: 61% detached houses, 13% attached single-family houses (rowhouses, twins and townhouses), 20% buildings of two to four units, 3% manufactured homes.
On a house built before 1940, ask what the deck is (boards or plywood) and whether slate sits under the later layers: slate can’t be roofed over.
Of the 22 Columbia County municipalities on this site, Berwick Borough has the 3rd largest share of homes built before 1980: 87%, against a county range of 42% to 93%.
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.
Storm record around Berwick Borough
Since 2006 the National Weather Service has logged hail of 1 inch or larger on 4 separate days within 10 miles of Berwick Borough; the largest was 1 in on June 26, 2024.
That is fewer than most places in the state on this site (median 12 days).
Federal major-disaster declarations for storms in Columbia County since 2006: 2, most recently DR-4408, Severe Storms and Flooding, declared November 2018. (OpenFEMA.)
HUD’s useful-life figures are for planning; a warranty is a separate promise. For Berwick Borough’s houses: 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; 61% 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
Low pitches and long runs
Standing seam that carries its own loads can skip the tear-off (R908.3.1)
Slate
75 years
Older houses; 36% here predate 1940
Can’t be roofed over; check the framing for the weight
Flat roof: EPDM or TPO
15 years
Porches, additions, low-slope rears
Seams at walls and drainage
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 Berwick Borough and look it up.
Do I need a permit to replace a roof in Berwick Borough?
Ask Berwick Borough first. The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). Whether Berwick Borough wants a permit is in its own ordinance; ask the borough code office before the old roof comes off.
Can a new roof go over the old one in Berwick Borough?
On a roof that already carries two layers, or slate or tile, the code allows no recover: it is a tear-off (IRC R908.3.1.1). 87% of Berwick Borough’s homes were built before 1980, so count the layers before comparing quotes.
How old are the houses in Berwick Borough?
By the Census Bureau’s American Community Survey (2020–2024), the median home in Berwick Borough was built in 1954, 87% of homes were built before 1980, 60% are owner-occupied.
Does Berwick Borough get hail that damages roofs?
Hail of 1 inch or larger was reported on 4 days within 10 miles of Berwick Borough from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
How do I check a roofing contractor in Berwick Borough?
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 Berwick Borough and look it up.
What they will ask on the phone
The street address in Berwick Borough, or at least the ZIP code
One story or two (or more), detached or attached
What is on the roof now (asphalt shingles, metal, slate, tile, or a flat membrane) and roughly how old it is
Whether there is one layer or more, if you know
That you want a new roof or a full replacement, and when you want the work done
Any historic-district or HOA rules on the house in Berwick Borough