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  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon32
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Northampton

Avatar for New England Foundation Crack Repair, LLC
New England Foundation Crack Repair, LLC
5.0(
95
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Northampton, MA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"This business was professional, communicative, and on time from my initial inquiry to when the job was performed. When I initially called, they were able to get someone out to provide a quote within 2 weeks and had me booked within another couple weeks. I was provided a quote online, and that's what I ended up paying. No fine print. Everything was completely transparent. William and another person came to do the actual sump pump installation. They were on time and finished a rather challenging installation (the pipe exit needed to be in a different room than the actual pump) within 4 hours or so. He explained everything to me clearly and was friendly, courteous, and professional. I would absolutely recommend these guys if you're looking for any kind of basement repair/waterproofing."
Response time4 hrs
1 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Advanced Basement Waterproofing LLC
Advanced Basement Waterproofing LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Northampton, MA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs.\nIt is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project.\nIn order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer \nin a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Knell walls
Knee Walls
After
Before
Concrete Work

+1

321 neighbors recently requested a quote
Avatar for ACO Masonry & Heating & AC
ACO Masonry & Heating & AC
4.4(
41
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Northampton, MA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I found Adam here on homeadvisor.com and I could not be more satisfied! From start to finish he is a professional that knows what he's doing. He repaired an old concrete foundation, sealed the basement windows, dug out the exterior to make sure he completely sealed the cracks and even found an exposed electrical wire down in the basement and fixed that. I could not be more pleased!! His response with an estimate, quote, time to complete the job, everything was just right on. Very pleasant and extremely professional. I highly recommend ACO an excellent company to deal with. I would definitely hire them again anytime! Thank you!"
Recommended by94%of homeowners
Avatar for Fox Excavating LLC
Fox Excavating LLC
5.0(
6
)
Basement Drainage Channels - Install

Serving Northampton, MA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

5 Years combined experience. We specialize in Septic Installations and Repairs as well as flat concrete work. We also resurface and install gravel driveways. We strive to do professional, quality work and make sure our customers are 100% satisfied.

Septic Tank Project
Septic Tank Project
Recycled asphalt millings parking lot
Septic Tank Project
Concrete pad

+14

Response time7 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for James Finn
James Finn
4.6(
7
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Northampton, MA and surrounding areas

Approved

In business since 1990

Warranties offered

Small jobs welcome

"After completing our amazing screened in sun porch (which we spend all our time in now), we hired James and Chris Finn to do all 3 of our bathrooms! They are fantastic. Kept me updated and involved every step of the way and continued to help with other things around the house. Quality beautiful and affordable bathrooms from top to bottom! We will next use these guys to redo our decks!"
Deck
Kitchen
New home
New home
New home

+93

Response time9 hrs
2 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for New London Home Improvements LLC
New London Home Improvements LLC
2.6(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Northampton, MA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"We had a leak in our foundation that flooded our finished basement newlondonhomeimprovements came to our property and took a look at what we had going on. They did there inspection and found a solution for the issue. They came out dug the out side of the foundation found the issues with our foundation and then sealed our foundation with a drainage system Now our basement is completely dry thanks again newlondonhomeimprovements"
7 neighbors recently requested a quote
Avatar for DryZone Basement Systems
DryZone Basement Systems
4.7(
112
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Northampton, MA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"DryZone Basements kept me up to date on my Appointment, called the morning of, arrived on time, checked in with me at the beginning to review scope of work, set up a dust barrier, two (2) workers and the job lead, worked hard throughout the time here. The lead would check in with me in intervals, they were open to answering any questions. Upon finishing, the lead took me around the whole job, explained the work, and allowed me to ask any questions, and provided me responses, and cleaned up the work area very well. Hopefully, we will never have to use, but definitely worth the piece of mind. Thank you."
Additional Photos
Additional Photos
Additional Photos
TripleSafe Sump Pump
WaterGuard and CleanSpace Wall

+3

Response time1 day
Response rate100%
Recommended by90%of homeowners
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Basement Waterproofing questions, answered by experts

You should plan on waiting at least a year and ideally two to three years after construction before finishing your basement. This will give the foundation time to settle in response to the weight of your home and the expansion of the surrounding soil. You can then repair your foundation and seal any cracks as needed before finishing it to reduce your risk of future leaks or other issues.

Yes, if your crawl space is prone to humidity, a dehumidifier can help keep it dry. For use in a crawl space, you’ll need a high-capacity and high-efficiency dehumidifier with built-in air filtration. It’s also wise to purchase one with a self-draining feature. Otherwise, you’ll need to climb into the crawl space to empty the dehumidifier.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

If a crawl space isn’t vented, there can be moisture buildup, which can lead to mold damage, easily destroying the foundation of your home. A closed-off crawl space can trap heat, which can be useful in the winter, but can also trap dangerous gases and prevent clean air from entering the home through the floorboards.

While water in your basement is unlikely to make you sick unless it’s coming from a sewage backup, mold is likely to start to grow in wet areas within 24 hours, and mold can make you sick. According to the Centers for Disease Control and Prevention (CDC), inhaling mold spores can cause allergy symptoms, including runny nose, itchy eyes, difficulty breathing, wheezing, and itchy skin. Individuals with pre-existing respiratory issues like asthma and immunocompromised individuals are at an elevated risk of symptoms when inhaling mold spores.

The Northampton, MA homeowners’ guide to basement waterproofing services

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