Top-rated basement waterproofing pros.

Best basement waterproofing pros near Cambridge, MA

Enter your zip and get matched with up to 5 pros

TRUSTED BY CAMBRIDGE, MA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon91
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Cambridge - 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 Cambridge, 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 Drycrete Waterproofing
Drycrete Waterproofing
5.0(
19
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cambridge, MA and surrounding areas

Approved

In business since 1979

Free estimates

Warranties offered

"We had 4 basement waterproofing companies come into our home to do an assessment of our basement. We are updating our home and finishing our basement. Although we only had occasional and minor water leaks we wanted to protect our investment. Our time with Mike, Jason, and the rest of the team was professional and informative from the first moment. They were responsive with our estimate, fair with their pricing, and willing to answer our questions along the way. The crew arrived on time and ready to get the project started. We had a couple of large items that we needed help moving and they assisted so that we could keep the basement clean. The work that was performed was done so with care. The basement was kept as clean as possible, and our input was taken into consideration along the way. Hands down thankful for the experience and piece of mind that we now have."
Drain systems / Sump pump
On the job
Crew
3/4HP Pump
Sump pump

+9

Response time6 hrs
Response rate96%
Recommended by70%of homeowners
Avatar for New England Foundation Crack Repair, LLC
New England Foundation Crack Repair, LLC
5.0(
95
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cambridge, MA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"What a professional company. Timely, highly skilled and honest assessment. I would recommend them in a heartbeat and if I ever need foundation repair and waterproofing on any of my properties, they will be my contractor of choice. great job!!"
Response time4 hrs
2 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Shore Water Management System
Shore Water Management System
4.9(
18
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cambridge, 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 Cambridge, 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 ABALIA Construction, LLC
ABALIA Construction, LLC
4.9(
35
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cambridge, MA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Khaled and his team were outstanding. The attention to detail, the quality of the workmanship and Khaled's attention to my questions and concerns during the project were all top notch. As with any project this size (mine was an entire basement remodel approximately 800sqft that included some minor demo), there were some complications, but the measure of any situation is how the stakeholders address it and there too, Khaled proved that he is made of superior customer service mettle. He got in front of the problems we were facing and addressed them methodically and kept me apprised as needed. He has a marvelous crew and they are all quite fun and knowledgeable. I absolutely love my finished basement. The walls and the painting job alone makes it worthwhile, and that was just the finish work! Fantastic! Strongly recommend Abalia for all your construction and remodeling needs."
Bathroom Remodel
addition
addition
addition
addition

+71

Response time2 days
Response rate92%
Recommended by96%of homeowners
Avatar for Inner Boston Masonry & Construction, Corp.
Inner Boston Masonry & Construction, Corp.
5.0(
43
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cambridge, 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%
6 neighbors recently requested a quote
...
Showing 1-10 of 515
Basement Waterproofing FAQs, answered by experts

Yes, slab leaks are fairly common, especially in older homes and places that are prone to earthquakes which can move home foundations.

Some basement waterproofing methods can actually cause your water or moisture problems to get worse, which is why it’s so important to call in a professional who knows how to solve your underlying issue and use the appropriate waterproofing methods. An example of this would be applying latex waterproofing paint to the insides of your basement walls without fixing the water issue outside. Doing so can trap moisture in the basement walls, which can promote mold growth, peeling paint, and even damaged concrete. However, when done by a professional, the only downside to basement waterproofing is the up-front cost.

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.

Preventing water accumulation involves regular inspections, maintaining effective drainage systems, ensuring proper roof maintenance, and taking preventive measures against heavy rainfall or floods.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

The Cambridge, MA homeowners’ guide to basement waterproofing services

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