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Best basement waterproofing pros near Merrick, NY

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Top-Rated Basement waterproofing pros in Merrick - Updated Nov 2026

Avatar for New York Waterproofing
New York Waterproofing
4.3(
28
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Merrick, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"AFFORDABLE BASEMENT WATERPROOFING WITH A LIFETIME GUARANTEE! My basement walls had 3 cracks in them. They leaked water into the basement when we had heavy rains. To fix these cracks I called in top rated waterproofing companies for their estimates to do their repair work. I found these companies to be very expensive and give minimum time on their warranty's for their work, for the money you have to pay them! Then I found New York Waterproofing Inc. and owner George Carpozi III, George has been in the basement waterproofing business for many years and knows how to fix any type of basement water problem. He has waterproofed residential as well as commercial basements, fresh and ocean salt water problems, leaking basement walls, windows, joints, and water coming up through the basement floor. George can stop the leaks! He has his own system to do this without digging up outside your property! He is so sure he can fix your leak George gives a WRITTEN LIFETIME GUARANTEE on the work he has done for you. Who else does that? I hired George to repair my basement cracks, George and his crew came to my home the Sunday before the NY area had days of RECORD RAINFALLS last week. With all the rain we had, none of the cracks George repaired leaked! The pice I paid New York Waterproofing Inc, and with a written lifetime guarantee on the repairs they made, was about HALF the cost of the lowest estimate I received from the other waterproofing companies I called in! If you have any type of basement water problem, my recommendation is to call and get estimates, but DO NOT SIGN anything, until you call George Carpozi III, and New York Waterproofing Inc. You owe it to yourself, and your pocket! I don't know of any other basement waterproofing company who will give you a written lifetime guarantee on their work. I wish all with wet basements the best, and a happy dry basement to come as well, now go make that call!"
Stopping Ocean Water's Hydrostatic Pressure
Foundation Crack From Shrinkage
250 Year Old House Water Entering Brick Foundation
Hydrostatic Water Permanently Sealed
The Hamilton

+12

Response time10 hrs
Response rate93%
5 neighbors recently requested a quote
Avatar for Home Healthy Homes, Inc.
Home Healthy Homes, Inc.
4.3(
120
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Merrick, NY and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"They were very helpful and professional. Glen responded to all of my questions in depth and worked hard to get my business to waterproof and eliminate mold. There have been a few hard rains since they completed their work, and I haven't had any water in the basement so far."
Newsday Article
Response time4 hrs
Recommended by91%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Merrick, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I hired Long Island handyman construction group to remodel a 400sf basement and bathroom in Melville. They were priced in the middle compared to other bids. I picked them thanks to their out of the box advice which saved me thousands of dollars. There was one problem with the plumbing which cost an extra 1800 dollars. The owner settled with me 50/50 even though it was a pre-existing issue. The project was started early and completed early. All mess was cleaned up and the crew was very friendly and fully aware. Very reputable guys and very easy to deal with. Thanks Moises and Eddy."
before demo
kitchen demolition
demolition complete
kitchen tile job in progress
kitchen tile

+172

Response time7 hrs
Recommended by76%of homeowners
Avatar for Dynamic Drainage LLC
Dynamic Drainage LLC
5.0(
50
)
Basement Drainage Channels - Repair

Serving Merrick, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Called about a basement sewer backup and couldn't be happier with the service. This guy is the doctor of draining — diagnosed the issue fast and had everything flowing again in no time. Professional, honest, and clearly knows what he's doing. Highly recommend, don't hesitate to call him if you're dealing with a drain or sewer issue!""
Mainline stoppage
Plumbing
19 neighbors recently requested a quote
Avatar for Patzan Home Improvement
Patzan Home Improvement
5.0(
15
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Merrick, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"All their work was excellent. Not only did they replace our roof and repair water damage in our dining room, we had them do other jobs too. Replacement basement windows, outdoor lighting, and fencing. I would definitely hire them again."
Foundation
Response time1 day
Response rate99%
4 neighbors recently requested a quote
Avatar for Foundation Crack Repair, LLC
Foundation Crack Repair, LLC
4.5(
16
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Merrick, NY and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Im am so happy with the work that was done on my house. Tyler came and gave a very fair estimate on lifting my concrete side entrance stairs to my basement. He explained every step of the process and did exactly what we wanted with no issues. Everything was done to perfection. No damage was done and you cant even tell the stairs ever needed a repair in the first place. I would highly recommend this company and would hire again for any future jobs."
Foundation Repair Ex.
Basement Repair Project
Response time2 days
Response rate99%
42 neighbors recently requested a quote
Avatar for Boccia Waterproofing & Masonry Specialists
Boccia Waterproofing & Masonry Specialists
3.7(
7
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Merrick, NY and surrounding areas

Approved

In business since 1955

Warranties offered

Credit card accepted

Boccia Inc has been providing basement waterproofing and masonry restoration services since 1955. With thousands of projects completed, the experts at Boccia have accumulated a wealth of knowledge and experience that has been relied upon to across Nassau, Suffolk and Queens. \n\nWe are family owned and operated Servicing Residential And Commercial Properties offering;\nBasement Waterproofing,\nBasement Emergency Escape Windows,\nStucco Repair & Coatings,\nFaçade Restoration & Waterproofing,\nCrawl Space Waterproofing \nMasonry\nCall 516-747-7727 Today!\n\n\n\n

Egress Window
Basement Escape Egress Window
Baasement Escape Egress Window
Stucco Repair
Stucco Repair

+4

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

Yes. Water can penetrate through a concrete foundation wall. This can happen whether or not you have cracks, as concrete is a porous material. You’ll want to take steps to waterproof your basement or crawl space.

Costs depend on the area's size and condition, damage extent, and chosen method. A professional evaluation provides a tailored estimate based on specific needs.

The primary downside to crawl space encapsulation is the high cost, which can be several thousand dollars. Additionally, the process can make future repairs more complicated by limiting access to plumbing and electrical wiring within the crawl space. Encapsulation also requires sealing off any vents, which can be a disadvantage for home designs that benefit from the airflow they provide. It's recommended to consult with a crawl space contractor to determine if the benefits outweigh these potential drawbacks for your specific home.

You should always hire a structural engineer or a professional and licensed foundation repair company for crawl space repair. These professionals will often be able to treat the symptoms of the issue as well as the underlying problem so that you don’t have ongoing damage. They’ll also often take preventative measures to stop the issue from recurring in the future.

The Merrick, NY homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.