Roofing & chimney contractor · Licensed & insured · Free estimates Cliffside Park, NJ Mon – Sat: 9:00 AM – 8:00 PM njassetconstruction@gmail.com

Roof Repair · Lambertville, Hunterdon County

Roof Repair in Lambertville, NJ

Most Lambertville roof leaks come from the places where buildings meet.

  • Licensed & insured
  • Free written estimates
  • Mon – Sat: 9:00 AM – 8:00 PM
  • Based in Cliffside Park, NJ

Roof Repair for Lambertville homes and buildings

Most Lambertville roof leaks come from the places where buildings meet. On rowhouses and twins, the joint between neighboring roofs, the flashing at a party-wall chimney and the tie-in where a low-slope rear addition meets the back wall of the main house are all common entry points. Flat and low-slope roofs over kitchens and additions develop ponding, open seams and failed flashing well before the pitched main roof wears out.

On the commercial streets, flat roofs behind parapets and cornices depend on drains and scuppers staying clear. We inspect from the roof and the inside, trace the water to its source and repair it with compatible materials, whether shingle, flashing or flat membrane. Asset Roofing & Chimney is licensed and insured, estimates are free, and we document storm damage for insurance claims.

Lambertville housing

Lambertville's housing is predominantly 1800s and early-1900s: brick and frame rowhouses, twins and narrow detached homes on small lots, many with low-slope or flat roofs over rear kitchens and additions. Chimneys are often built into party walls and shared between neighbors. The commercial streets have older buildings with flat roofs behind parapets or cornices. Asphalt shingle, flat membranes and some older metal and slate are all present.

Weather & exposure

The city sits on the Delaware floodplain, with the land rising to the east. Humidity off the river and canal keeps roofs and masonry damp, and freeze-thaw cycling is hard on old brick. Houses packed close together shade one another, and debris collects in the narrow gaps and valleys between buildings. Wind is moderated by the valley and the surrounding hills, but summer storms still bring heavy, fast rain that tests every gutter and drain.

Roofers repairing a shingle roof section beside a dormer
Asset crew at work. Photos are from our own jobs across North New Jersey.

Repair or replace? What we tell Lambertville homeowners

On attached homes, a lasting repair sometimes needs a conversation with the neighbor, since the failing detail may straddle both roofs. We explain exactly where the problem is and what the repair involves so owners can coordinate. On low-slope rear roofs, a seam or flashing repair is often enough if the membrane is otherwise sound; if it has blistered, split or been patched repeatedly, replacing that section is the better value.

Commercial owners should have flat roofs and drains checked before winter and after leaf fall. Clearing a drain and sealing a seam costs far less than water damage to a shop or apartment below. If an older building has slate or metal on a visible section, we can assess it and advise you; our specialty is shingle and flat roofing.

Lambertville Specifics

Roof problems we see in Lambertville

Rear additions with low-slope roofs

Many Lambertville homes have a kitchen or bath addition at the back with a nearly flat roof. Ponding, worn membrane and the flashing where it meets the main house wall are frequent causes of leaks into the rear rooms.

Shared roof joints between attached homes

Where two rowhouses or twins meet, the roofing on each side was often installed at different times with different materials. The joint between them is easy to neglect and can let water into either home.

Party-wall chimney flashing

Chimneys built into shared walls rise between two roofs. The flashing around them must tie into both, and when one side is reroofed without the other, gaps open at the chimney.

Parapet and drain leaks downtown

Flat commercial roofs in the business district rely on parapet flashing, drains and scuppers. Leaves and debris block drains, water ponds and seams fail under freeze-thaw, showing up as leaks in storefront ceilings.

Built-in and box gutters on old houses

Older homes sometimes have gutters built into the cornice. When their linings fail, water soaks into the wall and soffit rather than draining away, causing rot and interior staining near the top of the wall.

FAQ

Roof Repair in Lambertville: your questions

The leak is in my back kitchen, not the main house. What is likely?

Rear additions in Lambertville often have low-slope roofs, and the most common failures are ponding, open seams and the flashing where the addition roof meets the back wall of the house. We inspect both and repair the actual entry point.

My neighbor and I share a roof line. Can you fix just my side?

Often yes, and we make sure the joint between the two roofs is properly sealed and flashed. If the problem is on your neighbor's side or straddles both, we explain what we find so you can coordinate the repair.

Do you repair flat roofs on commercial buildings in town?

Yes. Flat roofing is one of our specialties. We inspect drains, scuppers, seams, parapets and rooftop penetrations, repair the failure with compatible materials and work around business hours where possible.

Are there restrictions on roofing older buildings in Lambertville?

Requirements vary by property, and we do not assume what applies to yours. We recommend checking with the city before exterior work on an older building, and we will explain the roofing scope so you can ask the right questions.

Nearby

Roof Repair near Lambertville

We serve every town in Hunterdon County. Nearby towns with their own roof repair page are linked.

Special offers

Current deals & promotions

All offers and terms
  • $1,000 Off

    $1,000 Off Your First Roof Replacement

    New customers save $1,000 on a complete roof replacement, shingle or flat. Includes tear-off, new underlayment, flashing and a full clean-up, with the price in writing before we start.

    Code NEWROOF1000 Ends Dec 31, 2026
    Get a Replacement Estimate
    Terms

    New customers only. Applies to full roof replacements. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • 10% Off

    Veterans, Active Military & First Responders: 10% Off

    Thank you for your service. Veterans, active-duty military, police, firefighters and EMS receive 10% off any roofing or chimney job, repair or replacement.

    Code SERVICE10 Ongoing
    Claim Your Discount
    Terms

    Valid ID or proof of service required. Discount up to $1,500 per project. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • 5% Off

    Senior Discount: 5% Off

    Homeowners 65 and over save 5% on roofing and chimney work. Just mention it when you call or send the form.

    Code SENIOR5 Ongoing
    Get a Free Estimate
    Terms

    Homeowner must be 65 or older. Discount up to $750 per project. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • $250 Off

    $250 Off a Chimney Rebuild or Stainless Liner

    Save $250 on a chimney rebuild from the roofline up or a new stainless steel liner installation. Both include a written inspection report with photos.

    Code CHIMNEY250 Ends Dec 31, 2026
    Request Chimney Service
    Terms

    Applies to chimney rebuilds and full liner installations. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • $200 Off

    Storm Damage Special: $200 Off Repairs

    After a nor'easter or wind storm, we document the damage for your insurance claim and take $200 off the repair. Call as soon as you notice missing shingles or a leak.

    Code STORM200 Ends Apr 30, 2027
    Request Storm Damage Repair
    Terms

    Applies to storm-related roof repairs of $1,000 or more. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • $100 Reward

    Refer a Neighbor, Get $100

    Know someone who needs a roof or chimney? When they sign a contract with Asset, you receive $100 and they get a free inspection report with photos.

    Code NEIGHBOR100 Ongoing
    Refer Someone
    Terms

    Reward paid after the referred project is completed and paid in full. Referrer must be named before the estimate. No limit on referrals.

Free Estimates · Licensed & Insured

Ready to schedule roof repair in Lambertville?

Tell us what you are seeing. We will come out, take a look, explain what we find, and give you a free written estimate. No pressure.

Request Roof Repair (201) 727-3113

Mon – Sat: 9:00 AM – 8:00 PM