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Best basement waterproofing pros near Nahant, MA

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TRUSTED BY NAHANT, MA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon52
    Verified basement waterproofing services reviews

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

Avatar for Pioneer Basement
Pioneer Basement
4.5(
265
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Nahant, MA and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"It went well. They are being professional in their follow-up as they are trying to have us install an expensive basement drainage/pumping system. We haven't decided yet, as it will be part of our basement gut/rehab project."
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+5

Response time2 days
4 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Key Waterproofing Construction
Key Waterproofing Construction
4.6(
233
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Nahant, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2014

Free estimates

Warranties offered

"Recently needed some waterproofing work done in my basement, proceeded to look up 3-4 different companies thet did basement water proofing work decided to go with Key Waterproofing and it was a "GREAT CHOICE"!!! Was notified as to when the job was to be done, 3 great guys showed up,right on time, went right to work installing a Sump-Pump in our basement floor to takecare of our water problems. They did neat, high quality work everything was cleaned up with a "job that was well done". "Very satisfied" would highly recommend Key Waterproofing for all your waterproofing needs!!!!!!!"
Response time12 hrs
101 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for LEAL RESTORATION SERVICES INC
LEAL RESTORATION SERVICES INC
5.0(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Nahant, MA and surrounding areas

Approved

In business since 2002

Emergency services offered

Warranties offered

"We hired Leal Restoration to clean up water damage on three floors of our house. They came early on a Saturday morning, worked all weekend and finished the job on Monday. This included drying out the area, removing debris, and replacing a ceiling. The work was done efficiently and carefully. Leal turned a disaster area into a clean and back to normal living space in 3 days. Amazing!"
Mold Removal 100% Done
Mold Removal  Services
Black Mold Services
Black Mold Services
Black Mold Inspection Services

+52

Response time4 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Ben the Mason, Inc.
Ben the Mason, Inc.
4.8(
220
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Nahant, MA and surrounding areas

Approved

In business since 2011

Free estimates

Offers commercial services

"Ben & his sons know their craft. They showed up on time and communicated with us as the project progressed. They poured a concrete floor in our basement and created a gorgeous brick walkway in our yard after jack hammering up the old walk way. . I highly recommend Ben the Mason to anyone needed mason work."
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+6

Response time10 hrs
Response rate92%
Recommended by97%of homeowners
Avatar for Avalon Masonry and Construction
Avalon Masonry and Construction
4.8(
53
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Nahant, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"We’re very pleased with the repair of our driveway retaining wall and stone veneer construction. James gave us great direction on how to repair the wall and the workers did a fabulous job. The job was completed in a timely fashion despite rain delays and the post job cleanup was thorough. We highly recommend Avalon Masonry!"
Response time4 hrs
Response rate100%
119 neighbors recently requested a quote
Avatar for Eagle HS Improvement
Eagle HS Improvement
4.8(
27
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Nahant, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"They did an excellent job repointing the exterior of my foundation and brick piers in the basement. I had a tight schedule and they worked through the weekend without me asking. Showed up early and worked long days to get it done. One of the guys was able to shimmy into a very tight and awkward spot due to the porch structure to get every area of the foundation. I pointed out a couple missed areas and they happily came back the next day to finish the job. I will be using them for future projects."
Kitchen Remodel
Response time2 days
Response rate89%
3 neighbors recently requested a quote
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Basement Waterproofing FAQs, answered by experts

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

You can seal a concrete slab by cleaning the surface, filling in any cracks, etching the surface, applying a sealer, and letting it dry. Concrete slabs don't typically need sealing, but you can use a topical concrete sealer if you notice signs of water damage. If you haven't already fixed the cause of the leak, then you'll want to repair the plumbing before you seal a concrete slab.

Yes, crawl spaces can attract bugs, especially since moisture tends to build up in the space, and moisture attracts pests. A good way to prevent pest infestation in your crawl space is to install a vapor barrier—called crawl space encapsulation—on the interior to seal the space, along with a French drain or some other kind of foundation drainage system outside to keep runoff out of your crawl space. You can also seal foundation cracks and repair damages to cut off access to pests.

“Basement waterproofing” sometimes refers to applying a waterproof sealant to basement walls, in which case you would use a waterproof paint, often made of latex. However, there are many methods you can use to waterproof a basement, including exterior drainage systems, interior drainage systems, dehumidifiers, and more. As such, the materials you use can vary depending on the methods you use.

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

The Nahant, MA homeowners’ guide to basement waterproofing services

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