Flat Roof Specialist · 23+ Years

Roofer in Jersey City, NJ | Roof Repair and Replacement

Gaby Roofing is a Jersey City roofing contractor based ten minutes away in Union City, serving Downtown, the Heights, Journal Square, Greenville and the West Side since 2003. We install torch down flat roofs, silicone restorations and architectural shingles, handle Jersey City building department permits, and give a written estimate before any work. Licensed and insured (NJ HIC #13VH11705800), 4.9 stars on Google from 170+ reviews. Call 201-638-8556.

Architectural shingle roof replacement on a Jersey City NJ row home — Gaby Roofing
23+ Years Family Owned
NJ HIC #13VH11705800
★★★★★4.9 on Google
Firestone · Owens Corning · Tri-Built
Insured & Bonded
What We Do

Roofing Services
in Jersey City

Jersey City’s roof stock is the most varied in Hudson County — historic Downtown brownstones, the Heights district’s pitched-roof colonials, Journal Square multifamilies, and Bergen-Lafayette frame houses each demand different systems. We handle torch-down modified bitumen on the brownstones, Owens Corning architectural shingles in the Heights, and silicone restorations across the multifamily belt down to Greenville. Twenty-three years of relationships with Jersey City’s Department of Housing, Economic Development & Commerce means our filings clear faster than out-of-area contractors’.

Flat Roofing

Modified bitumen torch-down and Tri-Built 985 silicone coatings — the systems that hold up to Jersey City winters and Hudson humidity.

Learn more → Flat roof repair →

Shingle Roofing

Owens Corning architectural shingles for the pitched roofs you’ll find around Jersey City and the surrounding Hudson County area.

Learn more → Roof repair →

Exterior Siding

Hardie board, vinyl, and full façade replacements — paired with roofing for whole-exterior projects.

Learn more →
Jersey City’s Roof Stock

Why Flat Roofs Rule Jersey City’s Skyline

From the Heights down to Greenville, Jersey City rooftops tell one story: block after block of low-slope membrane running parapet to parapet. The brownstones Downtown, the walkups around Journal Square, the multifamily belt through Bergen-Lafayette — most of it went up attached, and attached buildings get flat roofs. But the Heights and the West Side tell a second story — street after street of pitched shingle homes, and they’re a real share of our work. We replace those roofs with Owens Corning, GAF, and CertainTeed architectural shingle systems — full tear-off, never an overlay. Flat roofing made Gaby Roofing’s name in Jersey City, NJ; shingle roofing keeps our crews just as busy. Twenty-three years on these roofs taught us which details fail first — and it’s almost never the field membrane. It’s the edges, the drains, and the flashing.

85%
of Jersey City homes sit in multi-unit buildings — the Downtown brownstones, Heights three-families and Journal Square mid-rises that are almost all flat or low-slope. Source: U.S. Census Bureau, 2020–2024 ACS
1,400–2,400
Typical sq ft of a Jersey City row-home or multi-family flat roof.
10–15 yr
Service life on a properly applied Tri-Built 985 silicone coating in Jersey City’s Hudson microclimate.
Roof Repair

Roof Repair
in Jersey City

Most calls we get from Jersey City start with a leak — water staining a top-floor ceiling in a Heights row home, a flat roof ponding after a storm Downtown, flashing pulled loose around a chimney or skylight near Journal Square. We get on the roof, find the source, photograph what we find, and give you a written line-item estimate before any work starts. If a repair will hold, we repair it. If the roof is past that point, we tell you straight.

Roof Leak Repair

Tracing leaks to the source — failed seams, cracked flashing, vent pipe boots, chimney and skylight details — and fixing the cause, not just the stain.

Roof repair →

Flat Roof Repair

Torch-down patches, seam, blister and split repairs, ponding and drain corrections, and silicone restoration for Jersey City flat roofs that still have life in them.

Flat roof repair →

Emergency Roof Repair

Active leak during a storm? Call 201-638-8556. We prioritize active leaks, get the roof watertight first, then plan the permanent fix.

Emergency repair →

Own or manage a commercial or mixed-use building in Jersey City? See our commercial roofing page.

Gaby Roofing flat roof specialist branded truck and ladder rack at a Jersey City NJ residential job site
City-Specific Conditions

Brownstones, Walkups, and Roof Drainage in Jersey City

There’s no single playbook for Jersey City roofs. A Downtown brownstone with a roof deck and shared parapets is a different job from a Journal Square walkup with tenants in place — and both differ from a wood-frame Heights home catching river wind. What they share is water that has nowhere to go unless somebody engineered it a path.

We rebuild scuppers, replace internal drains, reset parapet flashing, and slope insulation toward the drain instead of away from it. On deck roofs, we lift or remove the deck, re-membrane underneath, and put it back — most leaks on those buildings start at deck mounts and flashing transitions, not in the open field.

Then there’s the logistics Jersey City, NJ demands: staging material on tight lots, keeping sidewalks clear, working floor by floor in occupied buildings so nobody gets displaced. After 23 years here, that part is routine for Gaby Roofing. For a contractor coming in cold, it’s where the job goes sideways.

JC’s six neighborhoods each carry different roof needs — Heights pitched roofs catch wind off the river and need 130 mph-rated shingles, Downtown brownstones need parapet flashing and roof-deck expertise, Journal Square multifamilies need systems that can be replaced without displacing tenants, and the West Side single-families run more like suburban roofs. Different specs, different prices, different installation timelines.

Permits & Inspections

Jersey City Roofing
Permits, Inspections, &
The Building Department

Jersey City’s permit process runs through one of the busiest building departments in the state — and after 23 years of filings, Gaby Roofing knows exactly what its reviewers want to see.

  • Complete applications the first time, so reviews don’t bounce back
  • Experience with Jersey City’s historic districts and the documentation reroofing there requires
  • Tenant and property-manager coordination for the multifamily belt around Journal Square and Bergen-Lafayette
  • Inspection scheduling handled by us from permit to final sign-off
📍 Jersey City Department of Housing, Economic Development & CommerceOne Jackson Square, 364 Martin Luther King Drive, Jersey City, NJ 07305
New Jersey Roofing Code

The 25% Rule in Jersey City

Here’s the part of New Jersey’s reroofing code that catches Jersey City owners off guard: repair more than 25% of your roof within any 12-month stretch and the code stops calling it a repair.

25%

The whole roof must then meet current standards — ice-and-water shield, drip edge, correct underlayment, the works. The code also caps how many roofing layers can stack up before a tear-off becomes mandatory. On Jersey City’s older brownstone and walkup roofs, where one tired membrane often hides another underneath, a “small patch” can trip that wire fast. Before we touch anything, we measure the affected area against the 25% threshold and tell you which side of the line you’re on. Get this wrong and you’re looking at a revoked permit, a failed inspection, or a problem surfacing when you sell.

For Jersey City homeowners, this matters because patchwork repairs on an aging flat roof can quickly cross the 25% line. We assess every job up-front and tell you exactly where you stand: small repair, full replacement, or a silicone restoration that rides between the two.

Why it matters: doing this wrong opens you up to permit revocation, failed inspections, and insurance issues at sale time.

Who We Are

Local Jersey City Roofing Company

Variety is the defining thing about roofing in Jersey City, NJ. Brownstones along Newark and Wayne Downtown, Victorians off Central Ave in the Heights, the multifamily stretch through Journal Square and Bergen-Lafayette, single-families out toward the West Side — we’ve put roofs on all of them, and we price each one by what it needs, not off a per-square chart.

You won’t reach a call center at 201-638-8556; you’ll reach a roofer. Damian still walks every estimate himself, and the crew that quotes your roof is the crew that builds it. No franchise, no commissioned salespeople — just Gaby Roofing, a licensed, bonded, and insured Hudson County family company (NJHIC #13VH11705800) with a 4.9-star Google rating across 155 reviews and 23 years at this. Verify our license anytime through the New Jersey Division of Consumer Affairs.

— DamianFounder · NJ HIC #13VH11705800
Reviews from Jersey City Homeowners

What Our Jersey City Clients Say

Recent reviews from homeowners and property managers around the city.

★★★★★

“The team at Gaby’s roofing was a pleasure to work with. They quickly scheduled a time to inspect our roof and provided us an estimate for necessary repairs. They were knowledgeable about the work that needed to be done.”

JJackie Rowe3 reviews · Google review
★★★★★

“A very professional, timely, detailed installation. Gaby Roofing kept me informed of all the steps throughout the process. I highly recommend them!”

NNancy Vargas5 reviews · Google review
★★★★★

“Had a wonderful experience. Great communicators. They came as promised. Worked quickly and cleanly. Damien answers you whenever you call or text him.”

LLourdes Dykhouse4 reviews · Google review
Frequently Asked

Roofing FAQ — Jersey City

A professionally installed torch-down flat roof in Jersey City will typically last anywhere from 15-25 years depending on drainage, roof access, weather exposure, and long-term maintenance. Gaby Roofing backs full roof replacement systems with a 10-year workmanship warranty. Because Jersey City has everything from Downtown brownstones to Heights wood-frame homes and mixed-use buildings, each roof needs to be evaluated based on its specific access, slope, flashing, and drainage conditions.
Yes. Most full roof replacements and major roofing repairs in Jersey City require permits through the Jersey City building department located at One Jackson Square, 364 Martin Luther King Drive, Jersey City, NJ 07305 (201-547-5055). Gaby Roofing handles permit applications, project documentation, inspection scheduling, and city coordination from start to finish. Jersey City projects can vary widely depending on whether the property is a row home, brownstone, mixed-use building, multi-family property, or commercial structure, so we build the permit and scope around the actual roof conditions.
Flat roof replacement costs in Jersey City depend on roof size, access conditions, existing roof layers, decking condition, roof deck removal, flashing complexity, insulation upgrades, and drainage corrections. Downtown row homes, Heights properties, Journal Square mixed-use buildings, and Greenville multi-family homes can all require different staging and waterproofing approaches. Gaby Roofing provides an on-site inspection and detailed written scope so property owners understand the full project before work begins.
Gaby Roofing can typically respond to active roof leaks in Jersey City the same day or within 24 hours depending on weather conditions and emergency call volume. Emergency service may include temporary waterproofing, tarping, drain clearing, and leak tracing around roof decks, skylights, parapet walls, penetrations, or flashing transitions. Call 201-638-8556 for emergency roof leak service in Jersey City.
Yes. Gaby Roofing works throughout Downtown Jersey City, The Heights, Journal Square, Greenville, Bergen-Lafayette, the West Side, and surrounding neighborhoods. Each area has different roofing conditions: Downtown row homes often involve roof decks and shared parapets, the Heights may include older wood-frame homes and tight access, and mixed-use buildings often require tenant coordination and staging plans. We tailor the scope to the building type instead of using the same approach for every Jersey City roof.
Yes, in many cases. Roof decks are very common on Jersey City row homes, especially in Downtown, Paulus Hook, Hamilton Park, and other dense neighborhoods. Gaby Roofing can often remove or lift deck sections, replace the membrane underneath, reinforce flashing details, and reinstall the deck after waterproofing is complete. Many leaks on roof-deck properties come from deck mounts, penetrations, and flashing transitions rather than the field membrane itself, so those details are carefully inspected before work begins.
Look for a roofer in Jersey City who is licensed and insured in New Jersey, works on flat roofs every week (most Jersey City homes have torch down or modified bitumen roofs, not shingles), gives you a written estimate that spells out the scope and the price, and backs the work with a written workmanship warranty. Ask how long they have been in business and read their recent Google reviews. Gaby Roofing has been roofing Hudson County since 2003, holds a 4.9 rating from more than 160 Google reviews, and puts every Jersey City estimate in writing before any work starts.
Written Estimate

Request a Written Jersey City Roof Estimate

Tell us what you’re seeing and where in Jersey City. We reply the same day, come out to look at the roof in person, and give you a written estimate. Or just call: 201-638-8556.

Talk to a Jersey City Roofer Today

Whether it’s a Heights shingle roof or a Downtown brownstone membrane, Gaby Roofing will come out and look at it in person. Same week visits anywhere in Jersey City, a straight answer, and a written price that holds, backed by our written workmanship warranty.

Call 201-638-8556 Get an Estimate