
Waterproofing Contractors in Manhattan, NY
Basement, foundation, roof and facade waterproofing that stops leaks at the source and keeps your property dry. Serving every neighborhood in Manhattan with free on-site estimates.
- Licensed, bonded & insured
- Free on-site estimates
- Permits & filings handled
- Written, itemized pricing
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Tell us about your project — we reply within 24 hours.

Waterproofing Contractors in Manhattan
Basement, foundation, roof and facade waterproofing that stops leaks at the source and keeps your property dry. Grace General Construction Corp has provided waterproofing in Manhattan since 2008 as a licensed, bonded and insured contractor based in the Bronx.
Manhattan roofs are typically flat, crowded with bulkheads, water tanks and mechanical equipment, and they leak at flashing and parapets first. Below grade, cellars and vaults near the waterfront are prone to seepage.
Our waterproofing services in Manhattan include:
- Interior drainage and sump systems
- Facade and parapet waterproofing
- Roof coatings
- Breathable masonry coatings
- Basement and foundation waterproofing
- Crack injection

Signs you need waterproofing
Call us for a free inspection in Manhattan if you notice any of these:
- Efflorescence on foundation walls
- Peeling paint on exterior walls
- Leaks during heavy rain
- Damp or musty basement
- Water at the floor-wall joint
Catching problems early usually means a smaller repair instead of a bigger rebuild.
How we work in Manhattan
Manhattan jobs usually involve building management, alteration agreements and DOB filings, and street-facing work may need sidewalk sheds. We prepare contractor documents, insurance certificates and permits up front.
Tell us about the job
Call, text photos or book online — most requests get a reply the same day.
We inspect and measure
A senior estimator visits, checks the underlying cause and takes measurements.
Clear price and schedule
You get an itemized quote with start date, duration and any permits needed.
Build, clean, sign off
We complete the work, protect your property throughout and review the finished job with you.

Roofs and cellars in Manhattan buildings
Manhattan roofs are crowded with bulkheads, water tanks and mechanical equipment, and most leaks start at flashing around those penetrations or at the parapet. Below grade, cellars and vaults — especially downtown and near the rivers — need targeted waterproofing to stop seepage.

Neighborhoods we serve in Manhattan
Manhattan work is planned around building rules, freight elevators and street permits — we handle the logistics so the job runs on schedule. We provide waterproofing throughout Manhattan, including Harlem, Washington Heights, Inwood, Upper West Side, Upper East Side, Midtown, Chelsea, Greenwich Village, East Village, Lower East Side, Tribeca, SoHo, Financial District, Murray Hill, Hell’s Kitchen and Morningside Heights.
Also in Manhattan: roofing contractors, foundation repair. See all our construction services in Manhattan, or learn more about our waterproofing contractors across NYC.
Get a free estimate on your project
Call now or book online — we respond within 24 hours.
Waterproofing across New York City
Straightforward from the first call
How every Grace project runs — whether it’s a one-day repair or a full gut renovation.
Call or send photos
Tell us about your project — it takes less than 3 minutes. We respond within 24 hours.
Free on-site visit
We come to your property to assess scope, take measurements and answer questions.
Clear written estimate
A detailed, itemized cost breakdown and schedule — no hidden fees, no pressure.
Build & walkthrough
Permits, crews and inspections handled by us, then a final walkthrough with you.
What clients say about our waterproofing work
Our results speak loud — but our clients speak louder. Rated 4.9 out of 5 from 66 reviews on Google.
We hired Grace General Construction Corp for a roofing job after dealing with leaks for a while, and I’m really glad we chose them. From the start, they were easy to work with and explained everything in a way that made sense.
The crew showed up on time, worked efficiently, and kept the area clean. The new roof looks great, and we haven’t had any issues since. Overall, a smooth experience and fair pricing.
I’d definitely recommend them to anyone looking for a reliable contractor in the Bronx.
We had a persistent leak that several contractors tried to patch, but the problem kept coming back. It was frustrating and costly. Grace General Construction Corp carefully inspected the issue and performed a proper roof repair instead of just a quick fix. They explained the problem clearly and fixed it the right way. Since then, no more leaks, even during heavy rain. Very satisfied with their honest and professional service.
We own a property with a flat roof, and pooling water was becoming a serious issue. It was starting to cause interior moisture problems. Grace General Construction Corp assessed the drainage issue and installed a proper flat roof solution to prevent standing water. The difference is incredible, no more ponding, no more stress. Their expertise and fair pricing made the whole process smooth. Highly satisfied with their roofing services.
I really appreciate grace General Construction corp for quick service and fixing my Roof leak and installation of new roof on garage. Also they install driveway concrete and they fix basement foundation fix in my home in bronx. Thanks for your quick service
Great people to deal with i hire grace general construction in bronx they did fix my roof leak and also install perfect concrete. Thanks
I hired Grace General Construction Corp, the best general contractor near Bronxdale, for concrete work and general contracting at my property, and I’m very satisfied with the results. The team was professional, showed up on time, and explained everything clearly before starting the job. The concrete work came out smooth, strong, and very clean. They handled the project from start to finish without any stress.
Pricing was fair, communication was clear, and the work quality was solid. I would definitely recommend Grace General Construction Corp, the best general contractor near Bronxdale, for anyone looking for reliable concrete work or general contracting services
Helpful reading on waterproofing

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Are Cracks in Walls Normal or Dangerous? A Homeowner’s Complete Guide
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Read articleWaterproofing questions
Can you waterproof my basement from inside?
Many leaks can be stopped from inside with crack injection and drainage; some need exterior excavation. We tell you which.
Can you work within my Manhattan building’s alteration agreement?
Yes. We provide the insurance certificates, licenses and schedules management requires and follow the building’s work-hour and elevator rules.
Why does my Manhattan basement leak only in heavy rain?
Usually from saturated soil, poor grading, failed drains or open cracks. We trace the water path before quoting.
Do you waterproof walls above ground?
Yes — facade, parapet and roof waterproofing are part of what we do.
Do you serve all of Manhattan?
Yes — we work across Manhattan, including Harlem, Washington Heights, Inwood, Upper West Side, Upper East Side, Midtown and every other neighborhood in the borough.
Are estimates free in Manhattan?
Yes. On-site estimates for waterproofing in Manhattan are free and come with no obligation. Call (718) 775-8519 or book online.
More questions? Read our frequently asked questions or see our NYC construction price list.
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Flat roof installation, leak repairs and full roof replacement.
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General Contracting
One licensed team managing trades, permits and schedule from start to finish.
Learn more about General ContractingWhere we work
From the northernmost neighborhoods of the Bronx to the southern shores of Staten Island, we build and renovate across the entire city.
The Bronx, NY
Our home borough — every service, every neighborhood.
Manhattan, NY
Roofing, concrete, parapets and commercial work.
Brooklyn, NY
Brownstones, row houses and storefronts.
Queens, NY
Single and multi-family homes, driveways, basements.
Staten Island, NY
Roofing, siding, concrete and full renovations.
Visit or call our Bronx office
Whether you’re planning a new project, need expert advice, or want a free estimate — we’re here 7 days a week. Learn more about Grace General Construction.