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Best basement waterproofing pros near Cambridge, MA

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    Average homeowner rating
  • Verified reviews icon91
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Cambridge - 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 Cambridge, 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
Additional Photos
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 Cambridge, 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 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

"Our experience with DryCrete Waterproofing was excellent, 5 Stars. The basement flooded twice this past fall and spring prompting our search for a solution. This company provided everything covered in the quote, to the letter and exact price. I would recommend them to my family or friends."
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

"Paul the technician was great. He was professional and informative. I have some foundation issues in my basement and he was able to waterproof everything that was a problem for a decent price. Highly recommended"
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

"Gerald took the time to understand my needs for making a basement for finished. He explained the options. We decided on self leveling concrete and covering the exposed French drain we had. We decided on a schedule, everything was done on schedule. I now have a Waterproof basement floor with total usable space. Extremely satisfied with the teams work."
waterproofing
Freeze flow
Waterproofing
Waterproofing
Waterproofing

+18

Response time1 day
Response rate93%
34 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

LEAL CLEANING AND RESTORATION SERVICES INC Just call 978-778-6676 , We are Specializes in Water Damage Services and Cleanup & Restoration of Residential & Commercial properties after disaster Lime Flood Damage , Sewer Backup Fire Damage , Smoke Odor Removal, or Any Water Damage Situation. Leal Cleaning and Restoration Services Inc Ready for you Open 24Hours , Just call 978-778-6676 , also We do mold Removal & mildew Removal from your home or business. Our staff & crews are highly trained in property damage restoration. From initial & ongoing training at our corporate training facility to regular industry certification, you can be assured our staff are equipped with the knowledge they need to restore your property. With advanced "real-world" training facilities you know you are in good hands with , Quality working if you need help call us 978-778-66 \n

Mold Removal 100% Done
Mold Removal  Services
Black Mold Services
Black Mold Services
Black Mold Inspection Services

+52

Response time4 hrs
Response rate100%
10 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

"I recently contracted with Abalia Construction to finish my basement, and overall, my experience was great! Things that stand out for working with Khaled are his communication style, his ownership/creativity to meet the design in delivering the end-product and his efforts to keep our project timeline and budget. He brought fresh and innovative ideas to the table, transforming our basement into a unique space that stands out. The incorporation of creative elements added a distinct touch, making the final result more interesting and personalized. Khaled demonstrated an ability to manage time effectively, ensuring that the basement was completed within the specified period and provided a realistic cost estimate from the beginning which they stuck to. There were still some unforeseen delays to the project due to either material back-order or unavailability of workers, but still Khaled worked personally to keep the project on task and within reasonable time. Communication with Khaled was great as we were able to approach with any issues/concerns and he was able to have a logical cordial discussions to reach to an aligned position. He was responsive to queries and concerns. While the basement looks great quality there were still instances where attention to detail seemed lacking. The subcontractors and workers employed were also skilled professionals however their attention to details could have been better. Moreover, communication with workers/sub-contactors was little challenging due to fact them not speaking English. Clearer communication on these fronts could have mitigated some of the concerns I had during the construction process. However, Khaled overcame these challenges by taking an active role in addressing any issues even when it meant that he had to re-do some of the activities again, bringing his workers back, or even him spending long hours to complete the job to our satisfaction. In summary, Abalia Construction delivered a basement finishing project that showcased creativity and was completed within the agreed-upon timeframe and within budget all with an excellent communications. Without any doubt, they will be the first I reach out to for my next project."
Bathroom Remodel
addition
addition
addition
addition

+71

Response time2 days
Response rate92%
Recommended by96%of homeowners
Avatar for LBJ Masonry
LBJ Masonry
5.0(
41
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cambridge, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1997

Free estimates

Warranties offered

"I was really happy with the guys they made it very easy and done an excellent job. We had multiple leaks in our basement and they repaired the foundation and waterproofed it for us. Thanks again would highly recommend !!"
chimney repointed.
basement foundation leak repair.
exterior foundation repair
retaing wall build
chimney rebuild

+2

Response time4 hrs
Response rate97%
42 neighbors recently requested a quote
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%
5 neighbors recently requested a quote
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Basement Waterproofing FAQs, answered by experts

Mold and mildew are the things in basements that actually cause the musty odors, but moisture is the underlying issue that causes mold and mildew growth. Addressing moisture and water problems and then removing materials that are moldy are some of the best ways to get rid of the musty odors. Preventive measures after that—like installing air fresheners and a dehumidifier—can help keep musty odors from returning.

Yes, you can enclose your crawl space. Enclosing your crawl space can promote energy efficiency and reduce the risks of pests and mold by limiting factors like humidity. It can also reduce heat loss, which is why doing so for the winter can make your home more comfortable.

Topical sealers adhere to the surface of concrete to create a protective layer. In many cases, this is all you need for concrete that sees light to moderate traffic, such as your basement. Penetrating sealers, on the other hand, bond with the free lime in the top layer of concrete to form calcium silicate, which prevents liquid from passing through. This type of sealer protects the surface from water, oil, and gasoline spills.

In most cases, a crawl space will not dry out on its own unless the moisture comes from an uncommon flood and isn’t expected to be a recurring issue. For most homeowners, moisture problems in the crawl space will only continue to get worse over time, so addressing the underlying problem with gutter systems or a foundation drainage system and setting up a preventative solution like a dehumidifier is necessary.

Several factors can impact the cost of waterproofing your basement. Some of the most common cost factors include:

  • Location

  • Square footage

  • Cause of the water leak

  • Type of foundation

  • Accessibility

  • Waterproofing method

  • Materials

  • Contractor experience and availability

  • Engineering reports, if needed

  • Structural and other repairs

  • Permits

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.