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Best basement waterproofing pros near Andover, MA

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TRUSTED BY ANDOVER, MA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon43
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Andover - 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 Andover, 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
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 Andover, 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
97 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Start 2 Finish Waterproofing Construction
Start 2 Finish Waterproofing Construction
5.0(
9
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Andover, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"I highly recommend Start2Finish Waterproofing. Ed was wonderful to work with. He was timely, informative, and honest. There?s no inspection fee like most other companies. Their quote was very reasonable and has a lifetime warranty. Bob and the install crew were very efficient and left my basement in the same condition as when they came. For basement water issues this is the company to use!!"
Water Leak Basement
Water Leak Basement
Basement Finishing
Basement Finishing
Basement Stairway

+44

Response time8 hrs
Response rate96%
Recommended by50%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 Andover, 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 LEAL RESTORATION SERVICES INC
LEAL RESTORATION SERVICES INC
5.0(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Andover, 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 ABALIA Construction, LLC
ABALIA Construction, LLC
4.9(
35
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Andover, MA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Khaled and his crew built a large 2-story garage for us and it came out wonderful. Khaled managed multiple sub-contractors, engineers, and the town's building department. The build did not always go according to plan and it did end up taking longer than anticipated, but that is to be expected with construction projects - especially in this worker & supply-limited climate. Despite delays and setbacks, Khaled always has his customer's interest at heart, and will make sure that the work is done well. I would recommend Abalia Construction and will use them again in the future."
Bathroom Remodel
addition
addition
addition
addition

+71

Response time2 days
Response rate92%
Recommended by96%of homeowners
Avatar for Eagle HS Improvement
Eagle HS Improvement
4.8(
27
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Andover, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"They did an excellent job repointing the exterior of my foundation and brick piers in the basement. I had a tight schedule and they worked through the weekend without me asking. Showed up early and worked long days to get it done. One of the guys was able to shimmy into a very tight and awkward spot due to the porch structure to get every area of the foundation. I pointed out a couple missed areas and they happily came back the next day to finish the job. I will be using them for future projects."
Kitchen Remodel
Response time2 days
Response rate89%
3 neighbors recently requested a quote
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Showing 1-10 of 318
Basement Waterproofing FAQs, answered by experts

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.

The first step to preventing foundation cracks is to repair any current ones. When one crack forms, it becomes more likely that a second crack will follow. A few other tips include performing regular foundation checks, cleaning spouts and gutters, and installing exterior drains if needed. For those living in a hot and arid area, you should water your foundation every other day.

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.

One handy thing about whole-house dehumidifiers is, once installed, you don’t have to worry about placement or changing the dehumidifier’s position. But if you are using a portable dehumidifier, we suggest keeping it away from walls, vents, and furniture. It needs a central, unobstructed spot with access to lots of air to do its job.

Thankfully, you do have a few sump pump backup options in case it fails. One option is a battery-powered backup sump pump. Another option is using a portable backup generator as a power supply for your sump pump. Unlike a battery-powered backup which has limited power, a generator can run around the clock for as long as you need it. 

Or you can opt for a water-powered backup pump, which uses your home’s water supply as a source of power. However, this may not be the best option if you find your house frequently has low water pressure.

The Andover, MA homeowners’ guide to basement waterproofing services

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