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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."
Additional Photos
Additional Photos
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Additional Photos
Additional Photos

+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

"Stephen and Wendel's crew at Key Waterproofing Construction did an excellent job in waterproofing my basement with cement. They were extremely professional, and superfast. Completed the job in five hours, had a crew of six, to completed a foundation of 200 sq ft. The price was right and job was impeccable, crew left the site nice and clean."
Response time12 hrs
102 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 Groundworks
Groundworks
3.6(
485
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Nahant, MA and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Warranties offered

"Corey C of Basement Technologies performed our yearly maintenance inspection on our Basement Technologies sump pump, and did a fine job. He arrived within the expected timeframe, and provided us a detailed checklist of all items inspected. He also reviewed the operation of the alarm systems with us. He was friendly and courteous throughout."
Basement
Basement
Basement
Basement
Foundation

+16

Response time2 days
94 neighbors recently requested a quote
Recommended by81%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%
124 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

A sump pump can remove excess moisture from under a house if standing water is present. Other ways to protect your crawl space from moisture include installing a vapor barrier, using a dehumidifier, installing insulation, and using a fan to dry the space. Finally, keeping your gutters clear of debris and positioning your downspouts away from the home’s foundation can prevent moisture from getting into the crawl space in the first place.

Yes, outside leaks can easily cause damage to your home if you don’t have waterproofing measures in place. Regularly check your property for signs of a leak, ensure your home’s landscaping is at least at a 5% slope, your basement windows are sealed, and you have an aligned gutter system to catch rainwater.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

In most climates, contractors recommend closing your crawl space vents in winter. Keeping them shut protects your crawl space from freezing temperatures, pests, and cool breezes that can lead to chilly floors in your home. However, it's often best to speak with a local crawl space team about your specific design and its relationship to the winter season.

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.