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

Serving Chatham, MA and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"They advice, and had all our questions answered on sensible and affordable options. Very knowledgeable, prompt, polite, efficient, and thorough team! We are happy with their waterproofing services in our basement (fast sump pump and a grate trench with a discharge line that goes 15 feet to the outside bubbler) as well as crawl space shield installed under our addition. It works well, and Pioneer checked a month later and a year after for inspection and cleaning. A+ work and workers."
Additional Photos
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Additional Photos
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 Chatham, 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
107 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 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."
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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

"I can't say enough about Watchman Waterproofing and the owner Dave. I got a few estimates for a drain because of water coming into my basement and decided to go with this company based on speaking with the owner Dave (Great Personality) and a fair price. He was very through walking me through each step of the process and didn't try to sell me something I didn't need. I needed to have the work done as soon as possible as I'm in the process of moving and with all the rain we've had and the rest of the week was not looking good with more rain to follow. He told me they were extremely busy and wouldn't be able to squeeze me in for a couple of weeks.The other company could start in a few days and their price matched Watchman by a hundred dollars. The next morning I get a call from Dave and he told me they had a cancellation and could start the work the immediatley I was thrilled! The crew showed up and they were very professional from start to finish. Great Company and fantastic owner!!! Thanks Dave :)"
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

"They were professional from start to finish. They exceeded my expectations. My basement floor was in rough shape with glue stains from carpet and rust stains from a leaking boiler. They paid special attention to grinding all those imperfections away. The final result was one I'm so proud to show off for years to come. Thank you for making the basement Grey metallic epoxy a wonderful experience. I would recommend them to anyone who wants to upgrade their space and put the "wow" factor back in their home. Well done!"
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

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

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.

Typically, waterproofing a basement should last up to 10 years. However, it’s worth noting that with proper maintenance and depending on the waterproofing method and installation quality, you can probably squeeze another decade out of it.

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.

Yes, it is generally unhealthy and can be dangerous to live in a damp basement. The damp air can negatively affect your breathing and lungs, and the moisture promotes mold growth and pest infestations. Inhaling mold spores or waste particles from insects and rodents attracted to the moisture can be hazardous. This damp, moldy air can also circulate into your main living area. It is crucial to resolve any moisture problems and implement preventative measures before using your basement as a living space.

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.