Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Winthrop, MA

Enter your zip and get matched with up to 5 pros

TRUSTED BY WINTHROP, MA HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon74
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Winthrop

Avatar for Pioneer Basement
Pioneer Basement
4.5(
264
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Winthrop, MA and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"It went well. They are being professional in their follow-up as they are trying to have us install an expensive basement drainage/pumping system. We haven't decided yet, as it will be part of our basement gut/rehab project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Response time2 days
7 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Key Waterproofing Construction
Key Waterproofing Construction
4.6(
229
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Winthrop, 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
56 neighbors recently requested a quote
Recommended by89%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 Winthrop, 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
1 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for LeBlanc Basement Waterpoofing, LLC
LeBlanc Basement Waterpoofing, LLC
5.0(
3
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Winthrop, MA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"I was impressed with his knowledge and professionalism. He installed a French drain system with a vapor barrier on the walls. He prepped the area to protect our belongings, made sure everything was cleaned up after the end of each day, and provided exceptional service and quality. I would highly recommend him!"
Ion sump pump
Airtight solid sump cover
Ashburnham, MA.
Ashburnham, MA.
Ashburnham, MA.

+28

Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for LEAL RESTORATION SERVICES INC
LEAL RESTORATION SERVICES INC
5.0(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Winthrop, 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%
5 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 Winthrop, MA and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"Mixed review I had spoken with other radon remediation companies and received quotes before meeting with Erickson Foundation Solutions. The salesman, Chris, seemed much more thorough in his approach and he gave a presentation explaining radon, its danger and the process to remove it. The quote was slightly higher than another quote, but I felt more confident. And with the added fan moisture guard, the system came with a 10-year warranty. So I agreed to the proposed plan and paid a deposit. Later I decided to not install concrete in the adjacent (but not connected) basement/crawl space. I asked Erickson to quote installation of plastic sheeting to seal that space. John, the sales manager’s quote doubled the total price. I already had found durable plastic sheeting for about $300. So how would that become $2000 extra? John explained that there would be a drainage mat under the plastic and it would be attached every few inches to the walls and then sealed with caulking. But besides sealing the area, the quote also included another extraction hole and piping to connect it to the fan. This seemed to me like over-kill for a 1200 square-foot house. But he said without the second extraction location, they would not warranty the job. So I accepted the “up-sell” and signed. Today the office called to tell me when the crew would arrive and they arrived on time and were very pleasant. However, they did not have the drainage mat. They called their supervisor and was told that it was not included in the quote and would be an additional charge. In fact it had been a verbal inclusion, not written. The crew was surprised that a second extraction hole was quoted, since the radon levels were not very high to start (3.8 and 5.4). So I feel that I accepted a possibly unnecessarily elaborate system, more elaborate than I probably really need, for twice the price. And didn’t receive the drainage mat that I was told would be part of it."
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%
5 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 Winthrop, 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
3 neighbors recently requested a quote
Recommended by82%of homeowners
...
Showing 1-10 of 351
Basement Waterproofing questions, answered by experts

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

Regular inspections, proper drainage management, and ensuring soil stability help prevent future settlement issues.

Methods include interior sealants, exterior excavation and waterproofing membranes, sump pump installation, and vapor barriers for encapsulation. Techniques vary based on the structure and severity of moisture issues.

A crawl space can be as little as 42 inches below the grade of your house, but this is not always recommended in flood-prone areas. At a minimum, there must be at least 16 inches of clearance between the ground and the floor joists to access the space in an emergency.

The Winthrop, MA homeowners’ guide to basement waterproofing services

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