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Best basement waterproofing pros near Lynn, MA

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TRUSTED BY LYNN, MA HOMEOWNERS

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    Average homeowner rating
  • Verified reviews icon57
    Verified basement waterproofing services reviews

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

Avatar for Key Waterproofing Construction
Key Waterproofing Construction
4.6(
233
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Lynn, 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 Start 2 Finish Waterproofing Construction
Start 2 Finish Waterproofing Construction
5.0(
9
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Lynn, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Excellent company to go for.. Highly professional team. Dependable and right on time. Ed and Bob are so precise in their work and completed as per plan.I would highly recommend S2F to anybody looking for preventing water penetration in basement"
Water Leak Basement
Water Leak Basement
Basement Finishing
Basement Finishing
Basement Stairway

+44

Response time8 hrs
Response rate96%
Recommended by50%of homeowners
Avatar for Shore Water Management System
Shore Water Management System
4.9(
18
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Lynn, MA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Shore water management systems did an excellent job containing the water in my basementâ ¦ They were very professional and made arrangements with my tenants when they had to leave and come back which was very commendableâ ¦"
waterproofing
Freeze flow
Waterproofing
Waterproofing
Waterproofing

+18

Response time1 day
Response rate93%
30 neighbors recently requested a quote
Avatar for LEAL RESTORATION SERVICES INC
LEAL RESTORATION SERVICES INC
5.0(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Lynn, 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 Lynn, MA and surrounding areas

Approved

In business since 2011

Free estimates

Offers commercial services

"Hired them in August to repoint all of the foundation outside and about half inside of the basement (brick repointing) also added some waterproofing and everything looks great and I haven't had any water come in the basement as a result of Ben The Mason and his son's great work. Highly recommend them for any masonry project, we also talked about redoing my front steps which I will follow up with sometime in the near future."
A
A
A
A
A

+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 Lynn, 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
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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, 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.

Crawl space encapsulation typically lasts between 10 to 20 years. If you experience a catastrophic event, like a flood, or poorly encapsulate your space with low-quality materials, it may only last a decade. Otherwise, as long as you properly maintain your crawl space, a high-quality encapsulation can last more than 20 years.

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

Yes, cleaning a crawl space is worth the cost. Although it's an out-of-sight area, neglecting it can lead to significant problems like pest infestations (including termites and carpenter ants), mold, and fungal growth, which can cause structural damage. Regular cleaning helps prevent these issues. While hiring a contractor has ongoing costs, the price for cleaning—typically between $0.50 and $4 per square foot—is much lower than the cost to remediate a pest or mold problem. Additionally, a clean crawl space can lead to improved indoor air quality and more comfortable temperatures in your home.

The Lynn, MA homeowners’ guide to basement waterproofing services

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