Roof Replacement in Wilson, PA

Half of the 3,175 homes in Wilson were built before 1938. 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.

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.

A Pennsylvania stone-and-brick house with a new shingle roof

The rules for a reroof in Wilson

Permit

Local ordinance, not the state

Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The borough code office can say what Wilson requires.

Source: 34 Pa. Code § 403.1(b)

Layers

One old layer can stay; two cannot

A new roof may go over one existing layer; with two or more, or over slate, clay or cement tile, everything comes off to the deck (IRC R908.3.1.1). 88% of Wilson’s homes were built before 1980, so count the layers before comparing quotes.

Source: IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)

Ice barrier

Wilson’s climate table decides

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 borough code office or the contractor what Wilson’s says.

Source: IRC 2021, Chapter 9 (Pennsylvania edition, UpCodes)

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 Wilson

Of 2,888 occupied homes in Wilson, 1,716 (59%) are owner-occupied. By year built, 54% before 1940, 79% before 1960, 88% before 1980; 5% went up in 2000 or later. (ACS 2020–2024.)

By building type: 25% detached houses, 47% attached single-family houses (rowhouses, twins and townhouses), 16% buildings of two to four units.

With 47% of homes attached, many roofs here meet a neighbor’s roof at a party wall. Say so on the call, and ask the contractor how the new roof will be tied in where it meets the house next door.

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 34 Northampton County municipalities on this site, Wilson has the 2nd largest share of homes built before 1980: 88%, against a county range of 20% to 91%.

Wilson and the towns around it

Place	Median built	Before 1980	Owners	Row, twin	Hail days
Wilson	1938	88%	59%	47%	16
West Easton	1938	85%	88%	32%	16
Easton	1938	85%	45%	34%	15
Palmer	1979	51%	82%	15%	16
Forks	2000	20%	91%	26%	14
Williams Township, Northampton County	1994	37%	87%	15%	18

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 Wilson

Since 2006 the National Weather Service has logged hail of 1 inch or larger on 16 separate days within 10 miles of Wilson; the largest was 2 in on August 17, 2007. The most recent was July 3, 2025.

Remnants of Hurricane Ida (DR-4618, September 2021) is the latest of 6 federal storm declarations covering Northampton County since 2006. (OpenFEMA.)

A report says hail fell near Wilson, not that it damaged a roof. When wind or hail damage means a new roof.

What goes on the roof next

HUD’s useful-life figures are for planning; a warranty is a separate promise. For Wilson’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; 25% 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; 54% here predate 1940	Sound slate can be reused (R908.5); broken slate cannot
Flat roof: EPDM or TPO	15 years	Low-slope roofs and rear sections (47% of homes here are attached)	Seams at walls and drainage

Checking a contractor in Pennsylvania

A contractor who does $5,000 or more of home improvement work a year must be registered with the Pennsylvania Attorney General, and the number has to be on every contract and estimate (HICPA § 3, § 6). Ask for it before anyone starts on a roof in Wilson, and search it.

The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.

Questions about a new roof in Wilson

Does a roof replacement in Wilson need a permit?

Local ordinance, not the state. Under 34 Pa. Code § 403.1(b)(8), alterations to a house that make no structural change are outside the state code. The borough code office can say what Wilson requires.

Can a new roof go over the old one in Wilson?

How old are the houses in Wilson?

By the Census Bureau’s American Community Survey (2020–2024), the median home in Wilson was built in 1938, 88% of homes were built before 1980, 59% are owner-occupied.

How often does hail hit Wilson?

Hail of 1 inch or larger was reported on 16 days within 10 miles of Wilson 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 Wilson?

What they will ask on the phone

Where the house is: the Wilson address or ZIP
Detached, twin or rowhouse, and the number of stories
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 Wilson
That you are the owner and the one who decides

The full list: before you call.