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Top-Rated Waterproofing pros in New Bedford - Updated Nov 2026

Avatar for Key Waterproofing Construction
Key Waterproofing Construction
4.6(
233
)
Inspection - Waterproofing

Serving New Bedford, 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 Pioneer Basement
Pioneer Basement
4.5(
265
)
Inspection - Waterproofing

Serving New Bedford, 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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+5

Response time2 days
4 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Inner Boston Masonry & Construction, Corp.
Inner Boston Masonry & Construction, Corp.
5.0(
43
)
Inspection - Waterproofing

Serving New Bedford, 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 Groundworks
Groundworks
3.6(
485
)
Inspection - Waterproofing

Serving New Bedford, MA and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Warranties offered

"Lenny Miranda and Izaiah Ramos did an amazing job on our basement! They were efficient and kept us updated every step of the way! It looks great and is now fully waterproofed!"
Basement
Basement
Basement
Basement
Foundation

+16

Response time2 days
54 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Watchman Waterproofing
Watchman Waterproofing
4.7(
14
)
Inspection - Waterproofing

Serving New Bedford, 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
Avatar for DryZone Basement Systems
DryZone Basement Systems
4.7(
112
)
Inspection - Waterproofing

Serving New Bedford, MA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"DryZone was extremely professional from start to finish. They came out and performed a detailed inspection of the basement to prepare their estimate, and spent a great deal of time explaining different options for waterproofing and finishing the basement. They provided a comprehensive proposal with detailed educational materials and background information on all the component equipment.
They showed quite a bit of flexibility in scheduling and completing the work, to adjust for the construction schedule of other work being done on the house at the same time. They arrived on time, and completed the work on schedule. During the course of the project, they also worked well with our general contractor to problem solve minor issues and offer creative solutions.
Very happy with the work.
"
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TripleSafe Sump Pump
WaterGuard and CleanSpace Wall

+3

Response time1 day
Response rate100%
Recommended by90%of homeowners
Oceans Edge Window Cleaning and Gutter Cleaning
5.0(
10
)
Inspection - Waterproofing

Serving New Bedford, MA and surrounding areas

In business since 2001

Free estimates

Emergency services offered

Buisness was started in 2001, this is the 10 year anniversary. Company is based out of Boston Mass. But Oceans Edge services southern New Hampshire, Newport and Middleton, and coastal Rhode Island, North Shore and South Shore of Boston, and Cape Cod. We work alongside with realators, and property management companies to ensure jobs are finished on time and exceed the expectations of the clients they represent. Some of our clients include The Boston Balllet, and Harvard Univerity. But Oceans Edge does 90% of its work in the residential sector and we focus on building a solid customer base, and working one on one w the individual to get every detail correct before we leave a property. Residential and Commercial window cleaning is our speciality, but we also offer gutter clearing, power washing, screen and storm window repairs and replacements,painting and deck staining, spring and summer yard cleanups, basement and attic junk and damaged material removal, small tree and limb removal, brush clearing, basement waterproofing, energy efficency w/solar panel cleaning and snow removal in the winter. Owner of the company is at every job no matter how large or small the job may be till completion. Unlike most larger companies Oceans Edge will come to the residence to give their free estimates. The company is fully insured and has an excellent track record for outstanding professionalism, including an A rating w Angies List and The Better Buisness Bureau. The owner is excellent communicating w clients and potential clients and displays a flawless work ethic.

Recommended by100%of homeowners
Avatar for Dennis Diffley Drain Services
Dennis Diffley Drain Services
4.7(
128
)
Inspection - Waterproofing

Serving New Bedford, MA and surrounding areas

In business since 1976

Free estimates

Credit card accepted

"Dennis came by promptly and gave an estimate on price and on when the work would be done. They were able to get the job done a week early (because parts for the drain channel came in on time and they has a space in their schedule). The team (led by Dennis' son) came on the day specified and on time and worked steadily until it was done (and done correctly). They swept up the footprints (rock dust and cement dust and whatever) tracked between the basement door and garage door. They even set up the dehumidifier I bought so it drains into the sealed sump directly. The installation meets the buyer's requirements and looks nice. It's definitely an upgrade for the basement space. Carol (the owner and Dennis' mom) and her office team were also a pleasure to work with on this basement waterproofing job. Since the office was less than 2 miles away from our home and time was short, I went there to execute the contract and place the deposit (rather than waiting for the postal service). You can contract and schedule remotely (via phone, mail, etc.) but then you wouldn't have the pleasure of meeting a team that loves their business and wants to do right by the customers."
Additional Photos
High Pressure Water Jetting
Video Camera Inspections
Sewer Connections
Water Line Installation

+1

Recommended by97%of homeowners
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