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TRUSTED BY SOMERVILLE, MA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon154
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Somerville

Avatar for Key Waterproofing Construction
Key Waterproofing Construction
4.6(
227
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Somerville, 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
33 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Drycrete Waterproofing
Drycrete Waterproofing
5.0(
19
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Somerville, 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%
4 neighbors recently requested a quote
Avatar for New England Foundation Crack Repair, LLC
New England Foundation Crack Repair, LLC
5.0(
95
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Somerville, 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 Beantown Strong Construction Corp
Beantown Strong Construction Corp
5.0(
69
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Somerville, MA and surrounding areas

Approved

Free estimates

"I hired Beantown Strong Construction for a shingle roof replacement and gutter drainage work, and the results were amazing. William and Tony worked very professionally and kept everything clean throughout the project. The new roof looks strong and perfectly installed. Their attention to detail really impressed me. Highly recommend them for roofing services and drainage solutions."
Siding repairs
Siding repairs
Siding repairs
Siding repairs
Siding repairs

+6

1 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 Somerville, 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 Erickson Foundation Solutions
Erickson Foundation Solutions
4.6(
10
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Somerville, MA and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"Took waaaay to long. 6 months, albeit, we started in late November but it was the nicest winter in history. Promise was late February for completion. I finally conceded in June that they had finally met all contractual obligations. There were several reasons it took so long from my point of view: not showing up when they say they are, poor workmanship requiring lots of rework (all caught by me, not the so called Project Manager), no dedicated project manager, unclear instructions/requirements flowed down to the contractors sent to do the work, company too focused on the next jobs instead of completing this one, etc..I could go on and on...Damaged my driveway and blamed the driveway even though I asked upfront if there would be any harm to it. "No we do this all the time" was the response. Damaged my neighbors lawn and I'm still fixing that. Overall, a bad experience. I'd rate them a "D" but they did eventually fix most of the quality problems. The rest I have, or will take care of. Cutting the ties with this contractor. Would not recommend."
View of the cracked and bowing field stone foundation wall.
PowerBrace wall supports are installed, and the new steel reinforced concrete wall is formed around them to fully stabilize the bowing foundation wall.
The auxiliary wall is anchored to the floor below and joists above and stabilized with PowerBrace wall supports.
Additional Photos
Additional Photos

+54

Response time2 days
Response rate100%
6 neighbors recently requested a quote
Avatar for WS Builders Corp
WS Builders Corp
4.1(
69
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Somerville, MA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"The Project was excellent. The communication on when they could start the project was exceptional . The quality of work was superb. With the new vinyl flooring covering on wthe cement basement, the room looks so new. I am very pleased with the results."
Addition
Basement renovation
Roof Renovation
KITCHEN REMODELING
2 and 3 Floor Addition

+75

Response time10 hrs
4 neighbors recently requested a quote
Recommended by82%of homeowners
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Basement Waterproofing questions, answered by experts

Installing storm windows can protect your home’s interior from heavy storms. Most storm windows are made with enamel-coated aluminum with screens and sliding glass panels. They also make your house more energy-efficient. The average storm window cost is $12,000, ranging between $4,250 and $19,850, depending on mounting, window types, glass types, and frame materials.

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.

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

Water damage to concrete is often gradual and can take months, if not years, for a concrete structure to be fully destroyed. The process often starts with cracks on the surface, followed by sinking slabs and eventually crumbling cement. Therefore, it is important to repair minor damages early to prevent the situation from worsening.

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.

The Somerville, MA homeowners’ guide to basement waterproofing services

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