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Open 24 hours · Call (201) 565-6664
ADZ Roofing

CENTRAL JERSEY · MERCER COUNTY, NJ

Roofing & Siding Contractor in Mercer County, NJ

Cedar shake siding on a Victorian home

Need a roofing contractor in Mercer County, NJ for an older row home or a suburban house? ADZ Roofing repairs and replaces roofs and siding from Trenton to Princeton, by appointment from Clifton.

Trusted by homeowners. Rated 5.0 on Google.

Customer reviews & industry credentials

Kevin D.

5 out of 5 stars on Google

Hired ADZ for a roof replacement and left a 5-star Google review. April 2025.

Digi Compass

5 out of 5 stars on Google

“Fast, clean, and very professional.”

New flat roof with chimney and vent on a New Jersey home

Florian S.

5 out of 5 stars on Google

Hired ADZ for a roof replacement, left a 5-star Google review and would hire the team again. April 2025.

New rafters and roof sheathing going on during a roof replacement

Erdis C.

5 out of 5 stars on Google

Needed a fast roof inspection for a home buyer and left a 5-star Google review. February 2026.

  • BBB Accredited Business
  • GAF Certified contractor
  • Google Guaranteed

27

5-star Google reviews

5.0

average Google rating

Roofers working on a brick home in New Jersey
New rafters and roof sheathing going on during a roof replacement
Read all on Google →
New roof decking going down on a brick home

MERCER COUNTY ROOFS

Older homes, flat roofs, shared walls.

Trenton’s older neighborhoods are full of attached, flat-roofed homes. Those roofs wear differently from a pitched suburban roof.

  • Row homes on shared roofs

    Attached homes share a roof line. A leak next door or a poorly sealed seam between roofs can send water into your home.

  • Ponding on flat roofs

    Water that sits for days after rain breaks down seams and flashing. Fixing low spots and drains matters as much as the patch.

  • Ice dams and freeze–thaw

    Melting snow refreezes at cold edges and gutters, backing water under shingles. Repeated freezing also cracks old masonry.

Water pooling on your flat roof? Call (201) 565-6664 for a free roof inspection.

Call about your roof (phone call)
New rafters and roof sheathing

SIMPLE FROM START TO FINISH

Our simple 3-step roofing process.

  1. Inspection & estimate

    We inspect your roof and explain what we find. Your estimate outlines the recommended work, materials and next steps, with time to ask questions before you decide.

  2. Repair or installation

    After you approve the plan, we agree on a schedule and explain how to prepare your home. The team completes the repair or installation and keeps you informed about any changes.

  3. Final check & cleanup

    We review the finished work and clean up the work area. A final walkthrough lets you ask questions and discuss the care and warranty information that applies to your roof.

New roof decking going down on a brick home

WHY CHOOSE US

Good work. Care for your home.

  • Less disruption

    A clear schedule and a team that keeps the work moving.

  • Lasting protection

    Careful attention to the details that help your roof do its job.

  • Clear communication

    Know what is happening and who to ask along the way.

  • Care for your property

    Protection during the work, followed by a thorough cleanup.

PLAN WITH CONFIDENCE

Payment & protection.

PAYMENT OPTIONS

A plan that fits your project.

Ask about available payment plans. Review rates, eligibility and terms before choosing.

Ask about payment options →

WARRANTY PROTECTION

Know what’s covered. Know who to call.

See the written coverage for materials and workmanship, including any exclusions.

Discuss warranty coverage →

MERCER COUNTY TOWNS

From Trenton to Princeton.

We work in Mercer County by appointment. If your town isn’t listed, send your ZIP code and we’ll confirm scheduling.

  • Trenton
  • Hamilton Township
  • Ewing Township
  • Lawrence Township
  • Princeton
  • West Windsor
  • East Windsor
  • Robbinsville
  • Hopewell Township
  • All service areas →

Don’t see your town?

Ask us about service in nearby communities.

Call (201) 565-6664 (phone call)

MERCER COUNTY ROOFING FAQS

Questions? Start here.

Yes, by appointment. We’re based in Clifton, in North Jersey, and schedule Mercer County jobs in advance, from Trenton to Princeton. Send us your town and ZIP code and we’ll confirm a date for your free inspection.

Each owner is usually responsible for their own section, but water doesn’t follow property lines. We inspect your section and the seams where it meets next door, and explain where the water is coming from so you can talk to your neighbor.

We install torch-down modified bitumen on flat and low-slope roofs. The seams are heat-welded, which holds up well against standing water. We also correct low spots and clear drains so water leaves the roof.

Often it’s an ice dam. Snow melts over a warm attic, refreezes at the cold edge and backs water under the shingles. Better insulation and ventilation help, and a new roof can include a waterproof underlayment along the eaves.

It depends on whether the roof is flat or pitched, its size, how many layers come off, decking repairs and the material. After a free inspection, you get a written estimate that lists the work so nothing is a surprise.

Yes. We repair chimneys and masonry, including loose brick, worn mortar and the flashing where the chimney meets the roof. On older homes, fixing both at once often stops leaks that keep coming back.

Yes. We install and repair vinyl siding and cedar shake. On older homes we check the trim and sheathing behind the siding for rot, and can plan siding with a roof job so the flashing ties in cleanly.

Move belongings, catch the water and keep people away from any bulging ceiling. Then call (201) 565-6664. We answer 24/7 and will confirm when a crew can reach your Mercer County home to secure the roof.

Roof tear-off on a brick colonial home

LET’S TALK ABOUT YOUR ROOF

Get your free roofing estimate.

Tell us a little about your project.

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