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Foundations, Parapets, Roof Terraces, Parking Decks.

Below & Above Grade Waterproofing.

Full-envelope waterproofing systems for foundations, parapet walls, parking decks, and rooftops.

Family-Owned Since 1947

Four Generations · Paul-Led

Written Proposal

Fixed Total · Clear Scope

Tri-State Coverage

NJ · PA · NYC · FL

By Paul Pennacchi·Fourth-Generation Owner, A. Pennacchi & Sons

Waterproofing is not one service. It is a whole-building discipline that separates the interior from weather at every plane. A. Pennacchi & Sons executes below-grade foundation waterproofing, above-grade parapet and cornice waterproofing, roof-terrace assemblies, and parking deck systems across New Jersey, Pennsylvania, and New York City. Four generations of Pennacchi craftsmen. Paul-led on every project.

Below & Above Grade Waterproofing: Below-Grade Waterproofing.

Below-Grade Waterproofing.

Foundations, basement walls, and exterior slabs below the finished grade. We install bituminous or polymer membrane systems, drainage boards, and perimeter drains on excavated foundations. On existing buildings without excavation access, we work interior with French drain systems, crack injection, and vapor barriers. Both approaches require correct detailing at penetrations, transitions, and terminations.

  • Foundation waterproofing with drainage board
  • Basement perimeter French drain systems
  • Foundation crack injection and carbon-fiber reinforcement
  • Exterior excavation and membrane application
  • Grade-level flashings and termination details
  • Sump pump systems with battery backup
Below & Above Grade Waterproofing: Above-Grade Waterproofing.

Above-Grade Waterproofing.

Parapets, cornices, copings, and transitions between masonry and roofing are where most commercial buildings leak. Water gets in at the top of the wall and travels laterally before it shows inside, which is why the interior leak is often nowhere near the actual failure. We rebuild parapets, reinstall through-wall flashing, replace stone or terra cotta copings, and detail transitions correctly. Commercial clients retain us specifically for this scope because most general contractors skip the flashing details.

Below & Above Grade Waterproofing: Roof Terrace And Parking Deck Systems.

Roof Terrace And Parking Deck Systems.

Urban roof terraces and mid-rise parking decks are hybrid structures that require a waterproofing membrane, a drainage layer, and a pedestal or overburden assembly. Failure of any layer compromises the whole system and typically damages interior finishes below. We install traffic-rated hot-fluid-applied membranes, hot rubber, and EPDM-based systems with redundant drainage paths. These are multi-phase projects coordinated with roofers and structural engineers.

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What Our Clients Say

A Reputation Built On Referrals.

5.0
Countless Google Reviews
MA

Michael Atkin

8 reviews

10 Months Ago

Knowledgeable, professional, reliable. Sent 6 masons to get the waterproofing job done quickly. Highly recommended. Has the knowhow to get the job done right the first time. A trustworthy expert firm.

Basement Waterproofing
LH

Lauren Hilton

1 review · 1 photo

A Year Ago

I had a roofer come out for a small leak in my attic. He fixed it and while up on the roof took pictures of my chimney. Told me I had a big problem. Lot of mortar missing. I called A. Pennacchi & Sons. Paul came out the next day. He told me what needed to be done and gave me a price. I asked him if I should add a few bricks to the top. He said "why do you want to spend more money?" What contractor says that? The men came out a few days later. On time, polite, got right to work, and cleaned up like they were never there. Paul had given me a choice of colors. His price was the best one. My chimney now looks absolutely beautiful. I would give them 10 stars.

Chimney Repoint
RT

Rich Treichler

11 reviews

A Year Ago

Great experience with Paul and the Pennacchi team. We contracted this firm to waterproof our basement and replace our basement windows. Nick was excellent at coordinating the effort, including preparation, window replacement, waterproofing, clean up, and follow up to inquire about and resolve a few questions. Happy to recommend Pennacchi and Sons.

Basement Waterproofing
BG

Brenda Giannacio

1 review

A Year Ago

A. Pennacchi & Sons has offered outstanding service since our first meeting. Honest, reliable, knowledgeable, and very responsive. The staff take pride in their work and are very respectful of your home. We highly recommend using them if you are having issues with a wet basement. We cannot thank them enough.

Basement Waterproofing
JA

Jackson Adolph

2 reviews

A Year Ago

Pennacchi sealed our basement 2 years ago. After a recent heavy rain we noticed seepage and asked Pennacchi to look at it. They sent Nick, who did an excellent job diagnosing the problem, finding the most likely seepage site, and then repairing it. Nick came by the next day, inspected the repair, and also improved sealing of 2 utility pipe entries. The rapid response, competency, diligence, and follow-up were excellent.

Basement Waterproofing Repair
MA

Mmm Aaa

Local Guide · 19 reviews · 24 photos

2 Years Ago

We are so impressed with Pennacchi & Sons. Multiple people recommended this company as the best in the region. For a company with a huge legacy, working throughout the county, there was no hesitation to see what our small job looked like and whether they could help. The crew was friendly, timely, and efficient. Ray walked us through the process, gave us a play-by-play for the best understanding of the work, and answered tons of questions. The end result was better than the original.

Masonry Restoration
MS

Michael Su

Local Guide · 11 reviews · 1 photo

2 Years Ago

Pennacchi has an exceptional reputation and we now have firsthand experience of their stellar work. The precision craftsmanship and professionalism are impressive. We had our chimneys repointed, brickwork restored, and a basement wall resealed. It all blends seamlessly and looks gorgeous. Ask for Sam as your foreman if you can, he was amazing. The entire crew was fantastic. Kudos to Paul and the leadership for building a great team. Impeccable service and beautiful finished product.

Chimney & Basement Sealing
AA

Adam Arif

Local Guide · 98 reviews · 1,020 photos

2 Years Ago

Pennacchi & Sons does amazing work. They restored my front door steps which were in bad condition. They fixed all the chips and cracks and painted them. Very professional and great service.

Stone Step Restoration
VC

Victoria Chow

9 reviews · 9 photos

3 Years Ago

Water was getting into my house because of the old brick exterior. It needed to be repointed and painted on the interior. Although this was a very small job, Paul and his son Paul Junior were incredibly professional, listened, and addressed my concerns. I left their crew to complete the work without being home and everything was safe and secure when I got back. They kept their work areas clean and took away their trash. Paul’s price was the most competitive. HIGHLY RECOMMEND.

Brick Repointing
WR

Wayne Richardson

8 reviews · 1 photo

3 Years Ago

My basement was leaking really bad and had 2 different companies come out and try to fix the problem with no luck. Decided to try a third time and luckily I came across APS. They came out and did amazing work and solved all my issues. Put in a French drain, sump pump, and stuccoed the walls. They had to fix all the problems the other companies did, and it was a great experience working with them. Paul was extremely professional. Highly recommend if you need the job done right the first time.

French Drain & Waterproofing
SB

S. B.

Local Guide · 14 reviews

3 Years Ago

These guys did a great job on my chimney with stucco.

Chimney Stucco
SS

Shibani Sharma

8 reviews

3 Years Ago

Excellent work. Very professional.

General Masonry
ES

Ellen Scanlon

Local Guide · 13 reviews · 1 photo

5 Years Ago

Pennacchi is the best. We had several jobs done in the past few months and found Paul and team to deliver exceptional work and service for reasonable prices. Very knowledgeable and professional. We had the basement waterproofed, foundation redone, and steps repointed. Extremely satisfied.

Foundation & Waterproofing
BC

Bill Cunningham

Local Guide · 78 reviews · 265 photos

5 Years Ago

The best in the business. Ask for Paul. Tell him Billy C. sent ya.

General Masonry
KT

Katia Ten Eyck

Local Guide · 24 reviews · 69 photos

6 Years Ago

We hired Pennacchi and Sons to waterproof our basement. We did not necessarily have issues, we just wanted to prevent any moisture problems in the future. We consulted with a few other people before speaking with Paul, the owner. Paul came up with an effective and cost-effective solution for us. We are very happy with the service and highly recommend Paul to everyone.

Basement Waterproofing
JM

John Monsport

7 reviews · 1 photo

6 Years Ago

These guys did an amazing job for us. 20 years of trying to get my basement dry and these guys finally got it to work. We actually had another company do it 15 years ago but we always got water back. Paul and his brothers worked hard and they cleaned us up as well. Thanks for letting me tell this story guys.

Basement Waterproofing
MS

Mike Salvador

2 reviews

6 Years Ago

I hired Pennacchi and Sons to do repair work on my chimney. In the 3 days they were here, they did an excellent job from start to finish. They also left my home in the same condition as it was before they came. I could not recommend this company more and would definitely hire them again if I needed future masonry work done.

Chimney Repair
MB

MeghanB

16 reviews · 2 photos

6 Years Ago

Gorgeous job repairing and painting my chimney.

Chimney Repair & Paint
BK

B. K.

Local Guide · 56 reviews · 1 photo

6 Years Ago

You want the best, call Paul at Pennacchi & Sons. Great work and he stands by all his work. A++

General Masonry
MP

Marcus Padulchick

Local Guide · 102 reviews · 32 photos

7 Years Ago

I would use them again. We needed a front porch and patio repaired. They did a great job and are very responsive to follow up. Attention to detail is certainly something I was impressed with.

Porch & Patio Repair
Our Process

How We Work.

  1. Step 01

    Request An Estimate

    Submit the form or call the Hamilton headquarters. A specialist replies within one business day to confirm scope and book the site visit.

  2. Step 02

    Site Visit

    A Pennacchi craftsman meets you at the property, identifies the failure mode, documents the scope with photographs, and reviews options with you on the spot.

  3. Step 03

    Written Proposal

    Within 5 business days you receive a fixed-price written proposal with a clear scope of work and a total price. No time-and-materials. No surprises.

  4. Step 04

    Production & Cleanup

    Our crews execute the work, tarp landscaping, enforce strict debris control, and cure the final joints before we invoice. Project leadership stays consistent start to finish.

Cost Of Waiting

Every Season Of Delay Makes The Fix Bigger.

Masonry failure is not a maintenance item. It is a cascade. A hairline mortar crack lets water in, freeze-thaw widens it, brick spalls, the wall destabilizes, and what was a modest repoint two winters ago becomes a full-envelope rebuild. On every below & above grade waterproofing project we quote, the scope is always smaller now than it will be next year. The earlier you book a site visit, the smaller the job.

What Is The Difference Between Waterproofing And Damp-Proofing?
Waterproofing is a continuous membrane designed to resist hydrostatic pressure. Damp-proofing is a surface coating that resists vapor but not liquid water. Residential foundations often ship with damp-proofing; when water intrudes, the fix is to upgrade to true waterproofing.
Can You Waterproof A Parapet Without Rebuilding It?
Sometimes. If the parapet masonry is sound and only the coping and flashing have failed, we can restore watertightness by replacing coping, reinstalling flashing, and repointing joints. If the brick itself is rotating or the cavity has collapsed, the parapet requires rebuild.
How Long Does A Foundation Waterproofing Membrane Last?
A properly installed bituminous or polymer membrane system lasts 30 to 50 years when protected with a drainage board at installation. Unprotected membranes can fail at 10 to 15 years from soil abrasion and root intrusion.
Start Your Project

Ready To Discuss Your Below & Above Grade Waterproofing Project?

Call the Hamilton headquarters or submit the form. A specialist replies within one business day to confirm scope and schedule a site visit.

Call Now Get Estimate