Hiring a roofing contractor in Somerville means hiring one who has worked on what the borough is built from. The older homes near the center of town fail differently than the postwar capes on the outskirts: steep slate pitches, shallow eaves that ice up in January, and additions tied into original rooflines.
William Penn Roofing & Exteriors has roofed Pennsylvania and New Jersey properties since 2008, licensed under NJ Registration 13VH12052900 and installing as a GAF Authorized contractor and CertainTeed Master Shingle Applicator.
Photos tell you more about a roofer than any claim on a website. Our project gallery shows before and after work across New Jersey, including slate restorations, full tear offs, and flat roof replacements.
Our residential roofing crews handle everything from a single failed valley to a complete tear off on a century old home.
We check the full system, not just the surface: shingles, flashing, valleys, decking, and attic ventilation. You get a written report with photos, so you can plan repairs instead of reacting to them.
Patched past the point of return means down to the deck, rotted sheathing replaced, and ice and water shield at the eaves and valleys. Our repair versus replacement guide covers the call.
Wind, hail, and tropical remnants moving up the Raritan Valley cause most of the sudden damage here. Active leaks get tarped 24/7, and our storm damage team documents everything for your adjuster.
Price comes down to size, pitch, material, and what we find under the old shingles. Older Somerville homes often carry two or three existing layers, which adds tear off and disposal that a quote based on square footage alone will miss.
We handle flat and low slope work for downtown storefronts, office buildings, and multi tenant properties across Somerville. See our commercial roofing in New Jersey for full scope.
Ponding, seam separation, and clogged drains cause most of what we get called for, and all three cost less caught early. Property managers across Somerset County, including near Martinsville, keep us on a maintenance rotation.
We install and replace TPO, PVC, modified bitumen, and EPDM systems, spec'd to the building's drainage, foot traffic, and rooftop equipment. Work is phased around your hours so the business stays open.
Coatings and targeted restoration often add years to a flat roof for a fraction of replacement cost. We inspect first and tell you honestly when a building has passed that point.
Asphalt shingles are a cost-effective choice offering reliable weather protection and wide design flexibility. They’re ideal for homeowners seeking affordable, durable roofs that can withstand New Jersey’s seasonal winds and snow.
Standing seam resists wind, sheds snow, and reflects heat, though it costs more upfront. Best for long hold properties, and our metal roofing and shingles comparison covers the rest.
Common on the older homes near downtown, and most of those roofs do not need replacing. They need flashing and cracked tiles handled by someone who will not break twenty more walking the field.
Natural insulation and a look that works where asphalt falls flat on older architecture. It needs upkeep in a humid climate, so we cover the maintenance schedule and realistic lifespan first.
Usually reserved for bay windows, porch roofs, and valley flashing rather than a full roof. Those valleys outlast anything else you can put in them.
These membranes serve commercial buildings and low slope sections like rear additions and porch roofs. Selection comes down to slope, drainage, foot traffic, and UV exposure.
Roofs do not work alone. When a project turns up a related water problem, we can handle the connected exterior work too.
Undersized or clogged gutters are a leading cause of ice damming and fascia rot on older homes. We clean, repair, and install seamless systems through our gutter installation team.
Vinyl and fiber cement replacement pairs naturally with a roof project, since staging and access are already in place. See our siding installation work.
Curb mounted and deck mounted units, flashed properly and installed during a roof replacement whenever possible. That is when it costs least and leaks least. More on skylight installation.
Stucco remediation that addresses cracking and trapped moisture before it damages the structure behind it.
Missing kickout flashing lets water run behind stucco, where it rots sheathing out of sight for years. Our stucco remediation crews open the wall, dry it, and rebuild it correctly.
Somerset County crews who know the Borough's permit process and which older blocks near downtown and Bridgewater need alley access for a dumpster
Roofing Pennsylvania and New Jersey properties since 2008, more about our team
GAF Authorized, CertainTeed Master Shingle Applicator, Owens Corning Preferred, BBB Accredited
Written line item estimates covering materials, labor, tear off, and disposal
Insurance claims documented on the roof with your adjuster, not argued over email
Workmanship and manufacturer warranties both registered after completion
Permits pulled and code compliance handled in house
Verified Google reviews, read what clients say
If your home sits in a designated historic area, material and color choices may need review before work starts. We check with the Borough during the permit stage so it does not stall your project.
If the field slate is sound and only flashing and scattered tiles have failed, repair is almost always cheaper and preserves the home’s value. Full slate failure is a different conversation, and we will tell you which one you are having.
Late spring through early fall gives the widest weather window and the best shingle sealing conditions. Winter replacements are possible with the right products and sequencing, and often come with shorter lead times.
We handle all permits and ensure full compliance with Somerville building codes.
Older homes here tend to have shallow eaves, limited attic insulation, and poor ventilation, which is the exact recipe for melt and refreeze. Our breakdown of how ice dams destroy roofs covers the fix.
Yes. We plan dumpster and material staging before the crew arrives, including alley access and street placement where needed. Streets in Somerville and nearby Bradley Gardens share the same constraint and we handle it routinely.
Water does not wait for a convenient quarter. By the time a stain reaches drywall, it has already been in the decking and insulation for weeks, and the repair is no longer a repair.
Book a free roof estimate and get a written report with photos, whether you hire us or not. We serve Somerville, the surrounding Somerset County boroughs, and the neighborhoods around Green Knoll.
