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Roofing Contractor in Lawrence Township, NJ

Allabaugh Construction repairs and replaces roofs across Lawrence Township, including the village of Lawrenceville, and throughout Mercer County. Free estimates, call (609) 477-0487.

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★★★★★
5.0 from 233 Google reviews
GAF-certified
roofing contractor
10-Year Workmanship
+ lifetime manufacturer's warranty
Licensed & Insured
NJ #13VH09734600 · PA #PA162561
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Roofing services in Lawrence Township

Lawrence Township sits between Trenton and Princeton, with the Route 1 corridor running through the middle. Its housing ranges from older homes in the village of Lawrenceville to mid-century neighborhoods and newer townhouse and condo communities. Our crew works on all of them:

Want a starting number before we come out? Our Instant Roof Quote gives you a ballpark in minutes.

Why Lawrence Township roofs wear out

Three kinds of housing, three sets of problems

Lawrence doesn't have one typical house, so it doesn't have one typical roof problem.

Older homes in and around Lawrenceville village. Older houses tend to have steep roofs, dormers, chimneys and valleys, all places where flashing ages and fails. The decking underneath is often board sheathing that has dried out over time, and older attics weren't built with modern ventilation. The result is ice dams in winter and shingles that cook from underneath in summer.

Mid-century neighborhoods. Many of the township's post-war neighborhoods have simpler roofs, but they're often on their second or third replacement. Common issues include limited soffit ventilation, bathroom fans venting into the attic, and decks that have been roofed over more than once.

Townhouses and condos. Lawrence added about 2,000 housing units between 2000 and 2010, according to census counts, and the township has its share of townhouse and condo communities. Attached roofs share party walls and long runs of connected shingles. The weak spots are the seams between units, step flashing at the walls between different roof heights, and valleys where several roof planes meet. When one unit's roof gets replaced and the next one doesn't, the tie-in has to be done carefully or it becomes the next leak.

Central Jersey weather

Lawrence gets the same weather as the rest of Mercer County. Nor'easters bring wind-driven rain, summer thunderstorms can bring hail and strong gusts, and winters swing above and below freezing. Freeze-thaw cycling opens small gaps in flashing and sealant a little more each winter. Ice dams form at the eaves when attic heat melts snow that refreezes at the colder overhang.

Lawrence also has a lot of mature trees and open space. Shade keeps roofs damp and mossy, leaves fill gutters and valleys, and limbs come down in storms.

How shared roofs work on townhouses and condos

If you live in an attached home, your roof is physically connected to your neighbors' roofs, even if the paperwork says each owner is responsible for their own section. That affects how a replacement gets done:

  • Who's responsible. Start with your HOA or condo documents. Some associations replace every roof in a building at once on a set schedule. Others leave it to each owner but control the shingle brand, color and style.
  • The party-wall seam. Where your roof meets your neighbor's, we cut in cleanly and weave or flash the new shingles into the existing ones, so water can't get in at the joint. We don't strip your neighbor's roof or leave their side exposed.
  • Walls between roof heights. Where a two-story unit sits next to a one-story section, step flashing along the wall carries water away. When that flashing fails, water can run into the wall of the unit next door, not just yours.
  • Timing. When several owners in the same building are all due at once, it often makes sense to coordinate. The seams come out cleaner, and everyone gets the same product.

Chimney and wall flashing on older homes

On older homes in Lawrenceville and throughout the township, the most common leak we find is failed flashing, not failed shingles. Step flashing along walls and dormers rusts or pulls loose. Counter-flashing on brick chimneys lets go as the mortar joints weaken. Over the years, someone often tries to fix it with roofing tar, which works for a season and then cracks. During a replacement we tear all of that out and install new step flashing, counter-flashing and, on wider chimneys, a cricket that diverts water around the back. If we find the brick or mortar needs work, we'll show you so it can be repointed before the new roof goes on.

When to call for an inspection

Most roof problems give you some warning before they become ceiling problems. Call us for a look if you notice:

  • Water stains on upstairs ceilings or along exterior walls, especially after a snowmelt. That can be an ice dam.
  • A musty smell or damp insulation in the attic, or frost on the underside of the roof deck in cold weather.
  • Shingles in the yard after a windstorm, or tabs that are visibly lifted along one slope.
  • Heavy granule loss, meaning a sandy buildup in the gutters or at the bottom of downspouts.
  • Curling, cracking or cupping on the slopes that get the most afternoon sun.
  • Moss, heavy algae streaking, or debris piling up in valleys under the trees.
  • A roof past 20 years old that has never had a professional inspection.

An inspection costs you nothing, and you'll get photos of what we find and an honest read on whether it's a repair, a replacement, or nothing to worry about yet.

Lawrence Township neighborhoods we cover

We work throughout the township, starting with the village of Lawrenceville. The village is home to the Lawrenceville School, and the Lawrence Township Historic District takes in the village and its stretch of Main Street along Route 206. We also work in Slackwood, Eldridge Park, Colonial Lakelands, Lawrence Station, Princessville, Clarksville and Quaker Bridge. If you're near Rider University, Quaker Bridge Mall, or the neighborhoods off the Route 1 corridor, we're there regularly too.

Each part of the township brings a slightly different job, from narrow lots and older homes in the village to cul-de-sacs and townhouse rows elsewhere. We plan access, deliveries and the dumpster around your street.

Township lines don't mean much to a roof. Lawrence borders Trenton, Ewing, Princeton, Hamilton Township, West Windsor and Hopewell, and we serve all of them. See the full list on our Mercer County page.

Permits and code in Lawrence Township

Permits in Lawrence Township go through the Construction Code Enforcement Division. The township's permit guidance says a permit must be obtained before any new construction or alteration, with the exception of ordinary repairs. Here's how that works for roofs:

  • Detached one- and two-family homes: Under New Jersey's Uniform Construction Code, re-roofing a detached one- or two-family home has been classified as ordinary maintenance since March 2018. That means no permit and no inspection.
  • Townhouses, condos and other attached homes: The ordinary-maintenance exemption for roofing doesn't cover them, so a permit is generally required.
  • Commercial buildings need a permit. Lawrence also requires contractors on commercial projects to hold an annual Lawrence Township contractor's license.
  • HOA communities often have their own approval process for color and material, separate from the township.

When a permit is needed, we prepare and pull it with the Construction Code Enforcement Division and coordinate the inspection.

Permit or not, we install every roof to the manufacturer's specifications and code-compliant practice. That includes ice and water barrier at the eaves and valleys, synthetic underlayment, drip edge, new step and counter-flashing, and ridge ventilation balanced with soffit intake. That's what keeps the roof dry and the manufacturer's warranty in force.

How a roof replacement works with us

  1. Inspection. We look at the roof, flashing, gutters and attic so you can see it.
  2. Written estimate with the scope, materials and warranty spelled out. We tell you if a repair makes more sense.
  3. Approvals and permits. For attached homes, we pull the township permit, and we can give your HOA the product details it needs.
  4. Protection. Tarps over plantings, protected siding and windows, and a dumpster placed to keep your driveway usable.
  5. Tear-off to the deck, with damaged decking replaced.
  6. Installation. Ice barrier, underlayment, flashing, architectural shingles, ridge vent, and careful tie-ins at party walls.
  7. Cleanup. Debris hauled away for nails.
  8. Walkthrough. We review the work with you and go over the warranty.

Why Lawrence Township homeowners choose Allabaugh

  • NJ HIC #13VH09734600, plus PA HIC #PA162561 for our Pennsylvania work.
  • GAF-certified roofing contractor.
  • Lifetime manufacturer's warranty and a 10-year workmanship warranty on roof replacements.
  • Financing available.
  • 5.0 stars from 233 Google reviews.
  • 20+ years in the trade under owner Jared Allabaugh.
  • Free estimates with photos and plain-English answers.

Call (609) 477-0487 for a free inspection anywhere in Lawrence Township or Lawrenceville, or start with an Instant Roof Quote.

Landmarks Around Lawrence Township

Whether you live near Village Park or along Main Street in Lawrenceville, these are two local landmarks in the Lawrence Township area we serve.

Village Park

Village Park

Park

Village Park is a 60-acre township park with picnic areas, lighted soccer fields, tennis courts and a stop on the Lawrence Hopewell Trail. Neighborhoods near open fields like these feel every gust of a summer thunderstorm, and so do their roofs.

Weeden Park

Weeden Park

Park

Weeden Park sits at Main Street and Craven Lane along Route 206, known for its white gazebo in the heart of Lawrenceville village. Village homes nearby are often older, and their roofs reward careful, detail-minded work.

Landmark photos via Google Maps.

Neighborhoods & ZIP Codes We Serve in Lawrence Township

Allabaugh Construction LLC provides roof replacement, roof repair, siding and gutter work across Lawrence Township and the rest of Mercer County.

ZIP Codes

  • 08648

Recent Allabaugh Roofing Projects

Finished architectural shingle roof on a two-story home Front of a colonial home after a new dark shingle roof Side elevation of a home with a newly installed shingle roof Framing a roof for a home addition Roof framing over an addition mid-construction New shingle roof seen from the ridge with chimney

Photos from Allabaugh Construction jobs. See the full gallery.

What Our Customers Say

5.0 stars from 233 reviews on our Google Business Profile.

★★★★★
“They were very fast coming out for a leaking skylight and fixed it with no issues. Great company to work with.”
Google review · April 2026
★★★★★
“We arrived home one evening in November to find a section of our roof and siding was damaged due to the high winds. The siding was scraping across our roof, causing further damage. We contacted Allabaugh Construction and they immediately responded. They arrived the next day, secured the loose siding and then guided us...”
Google review · April 2026
★★★★★
“Great quality and a great price for a new roof! We also had new gutters installed and, like the new roof, they look fantastic! Jared is a super nice guy and addressed all of our questions in a timely fashion! Highly recommended!”
Google review · March 2026
Read more reviews →

Rated 5.0 Stars by 233 Homeowners on Google

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Our Lawrence Township Service Area

Allabaugh Construction LLC

New Jersey: (609) 477-0487

Pennsylvania office: (814) 330-4897

Hours:
Mon – Fri: 9:00 AM - 5:00 PM
Sat – Sun: 9:00 AM - 12:00 PM

Financing available · Free estimates

View us on Google

Lawrence Township Roofing FAQs

Is Lawrenceville the same as Lawrence Township?

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Lawrenceville is a village within Lawrence Township, so it's part of the same municipality. The township also includes other sections and communities like Slackwood, Eldridge Park and Colonial Lakelands. For roofing, it means the same township offices, the same construction rules and the same service from us, whether your address says Lawrenceville or Lawrence Township.

Do I need a permit to replace my roof in Lawrence Township?

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Lawrence Township requires a permit before new construction or alterations, with an exception for ordinary repairs. Under New Jersey's construction code, re-roofing a detached one- or two-family home counts as ordinary maintenance, so it generally doesn't need a permit. Townhouses, condos and other attached homes usually do, as do commercial roofs. When a permit is required, we file with the township's Construction Code Enforcement Division and pull it.

I live in a townhouse community. Can you replace just my section?

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Often, yes, but it depends on your association's rules. Many HOAs control roof color, material and timing, and some handle roofs for the whole building. Check your governing documents or ask your management company first. If you're responsible for your own roof, we'll match the approved shingle, tie the new section in cleanly at the party walls, and pull the permit that attached homes generally need.

Can you replace a roof on an older home in Lawrenceville village?

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Yes. Older homes need extra attention at the chimneys, valleys and walls, and the decking under the shingles is often original board sheathing that needs repair. We install architectural asphalt shingles and EPDM flat roofing. If your home has slate or another material outside our shingle and EPDM work, we'll tell you so upfront and give you an honest assessment anyway.

What causes leaks around my chimney?

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Most chimney leaks come from failed flashing, not the chimney itself. Step flashing and counter-flashing crack, pull loose or get covered in tar over the years, and water slips behind them. Wide chimneys may also need a small cricket behind them to divert water. We rebuild chimney flashing as part of every replacement and can do it as a standalone repair.

Do you offer a warranty on new roofs?

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Yes. Our roof replacements come with lifetime manufacturer's warranty and a 10-year workmanship warranty. We put the details in writing with your estimate so there are no surprises. The manufacturer's coverage depends on the roof being installed to their specifications, which is how we install every roof, whether or not the township requires a permit or an inspection for your home.

Need a Roofer in Lawrence Township?

Free estimates · Financing available · Lifetime manufacturer's warranty and a 10-year workmanship warranty.

Call (609) 477-0487 Instant Quote