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Best basement waterproofing pros near Chatham, MA

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TRUSTED BY CHATHAM, MA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon19
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Chatham - 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 Chatham, 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
105 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Inner Boston Masonry & Construction, Corp.
Inner Boston Masonry & Construction, Corp.
5.0(
43
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Chatham, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Contacted Mark within 3 days he was at my home and providing a detailed quote. Might seem small but he was the only one out of 4 contractors who actually measured the space to provide an accurate and detailed estimate. He while discussing what I wanted with me made many recommendations and even mentioned ways to get the job done but at a lower cost. He had the estimate to me within 2 days and it was super detailed and broken down with 3 different ways to complete it. He was on time daily as was his crew. Work areas were cleaned daily. He closed up a broken window for us, redid a dirt floor with drainage and concrete, repointed and waterproofed our basement foundation, ripped out and fully replaced basement access stairs. He even noticed a window that was broken we didn’t and closed it up for no charge. He added a drain to the exterior steps at no charge wasn’t in contract he just knew it was needed, the steps he replaced had asphalt around them and he even repaired the asphalt at no c"
My jobs
My jobs
My jobs
My jobs
My jobs

+11

Response time4 hrs
Response rate99%
5 neighbors recently requested a quote
Avatar for DryZone Basement Systems, Inc.
DryZone Basement Systems, Inc.
4.0(
18
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Chatham, MA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

DryZone Basement Systems, Inc., is your local expert for ALL THINGS BASEMENTY! We specialize in basement waterproofing, foundation and crawl space repair, as well as sump pump installation. We offer free estimates for property owners across Massachusetts and Rhode Island.\n\nThe company is a trusted and valued member of the Basement Systems network and upholds the high standards of the company. DryZone Basement Systems, Inc., thoroughly trains their staff and experts for crawl space and basement waterproofing at the Basement Systems, Inc., corporate headquarters in Connecticut and always offers a 100% customer satisfaction guarantee.

Before
After
Basement Bathroom
Drain System
Drain System

+51

Response time1 day
24 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Groundworks
Groundworks
3.6(
485
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Chatham, 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
61 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for DryZone Basement Systems
DryZone Basement Systems
4.7(
112
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Chatham, MA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"DryZone Basements kept me up to date on my Appointment, called the morning of, arrived on time, checked in with me at the beginning to review scope of work, set up a dust barrier, two (2) workers and the job lead, worked hard throughout the time here. The lead would check in with me in intervals, they were open to answering any questions. Upon finishing, the lead took me around the whole job, explained the work, and allowed me to ask any questions, and provided me responses, and cleaned up the work area very well. Hopefully, we will never have to use, but definitely worth the piece of mind. Thank you."
Additional Photos
Additional Photos
Additional Photos
TripleSafe Sump Pump
WaterGuard and CleanSpace Wall

+3

Response time1 day
Response rate100%
Recommended by90%of homeowners
Avatar for Watchman Waterproofing
Watchman Waterproofing
4.7(
14
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Chatham, MA and surrounding areas

In business since 2011

Free estimates

Emergency services offered

"Dave was extremely helpful and super nice (and patient). We had some delays in our overall project and he continue to connect with me via phone and check in. The work in the basement was done quickly and neatly. I am so impressed with the Watchman team from Doreen in the office, Dave and the person who did the installation. You will not be disappointed with Watchman!!!"
Wet
Basic Sump Pump
Downspout Management
Water under the floor
Clean Install

+4

Recommended by90%of homeowners
New England Waterproof
5.0(
9
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Chatham, MA and surrounding areas

In business since 2002

Free estimates

At New England Water Proofing we take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional and friendly manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Response time10 mins
Response rate100%
Avatar for Custom Coatings
Custom Coatings
5.0(
42
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Chatham, MA and surrounding areas

In business since 2004

Free estimates

Warranties offered

"I highly recommend Custom Coating. My mahogany deck hasn t looked so good since it was installed over 15 years ago; they power washed, sanded and stained it back to looking new. The only drawback was this high heat and humidity which made drying process slow. I would have them come for maintenance next time but in early spring."
Industrial Garage floor
Industrial Garage floor
Industrial Garage floor
Industrial Garage floor
Before Picture

+53

Response time2 days
Response rate98%
Recommended by85%of homeowners
Showing 1-10 of 49
Basement Waterproofing FAQs, answered by experts

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

Yes, it’s worth it to repair a crawl space foundation, even if the issue seems relatively minor. Foundation problems often get worse and more expensive to fix if you leave them untreated. Additionally, your entire home, from the framing and flooring to the roof system, relies on the foundation for even and level support. Issues with your foundation will almost always manifest as problems in and above your living space, so it’s important to find a solution.

To maintain an outdoor structure, perform regular inspections for damage, leaks, and weak joints. Clean the structure regularly, treat or repaint wood surfaces for weather resistance, and reinforce any weak joints to prevent deterioration and ensure its longevity.

A vapor barrier can last over 20 years, but they are vulnerable to pests, flooding, and other natural disasters. If your home weathers a storm or is treated for any pest infestation, make sure to have a drywall pro come check the integrity of your vapor barrier. It’s also important to have a pro install a vapor barrier since improper installation can lead to tears or leaks in the barrier that shorten its lifespan.

The best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.

If you have more significant water problems, the solution will need to be more robust:

  • For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.

  • For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.

Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.

The Chatham, MA homeowners’ guide to basement waterproofing services

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