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Best basement waterproofing pros near Marion, MA

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TRUSTED BY MARION, MA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon32
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Marion - Updated Nov 2026

Avatar for Key Waterproofing Construction
Key Waterproofing Construction
4.6(
233
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Marion, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2014

Free estimates

Warranties offered

"I highly recommend Key Waterproofing. I have a main basement and a small storage basement. Both flood every time it rains. Our drainage was not working and we called Key Waterproofing. Ed and Wendell along with their team were fantastic. The job was finished within the timeframe we were given and the price was very good compared to their competitors. Overall we are very happy with the results."
Response time12 hrs
101 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Hydroseal, LLC
Hydroseal, LLC
5.0(
10
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Marion, MA and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Johnathan is a honest hard working man. He walked me through the whole process and delivered exactly what he promised and more! You just donâ t find customers service like this anymore. Itâ s been over a year since my basement drainage system has been installed and he has checked in on serval rain storms just to make sure everything was ok! He has even given my some pointers on things I can do around my home to further improve my drainage issues. He even called me back from his tropical vacation. He definitely goes above and beyond . I have had many contractors over the years and he is at the top of my list! I would highly recommend him!"
French Drain System
French Drain System
Basement Waterproofing
Battery Back Up Sump Pump
French Drain System

+15

Response time2 days
11 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Inner Boston Masonry & Construction, Corp.
Inner Boston Masonry & Construction, Corp.
5.0(
43
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Marion, 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 Beacon Drain Service, LLC
Beacon Drain Service, LLC
5.0(
17
)
Basement Drainage Channels - Install

Serving Marion, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Your company is outstanding and we are extremely happy. Our technician Garett was prompt and polite. He was very knowledgeable and explained things about our situation that we were totally unaware of. Potentially saving us time and money down the road. Garrett was attentive to our to our needs and was very careful of our pets as he was working. We would definitely use Beacon Drain Service again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time1 day
Recommended by93%of homeowners
Air Guardian Inc.
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Marion, MA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

Air Guardian Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you! \n

Aponte Contracting
4.1(
34
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Marion, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Small jobs welcome

"Mr. Aponte is a true craftsman and professional. We needed a bedroom ceiling replaced and window framing, trim work done. Mr. Aponte reached out quickly and was able to visit us for a quote in a short amount of time. His pricing was very fair and he had a very creative solution to our problem. Mr. Aponte was an excellent communicator both on site and by phone. He always showed up exactly when he said he would. It was very much appreciated! Our ceiling is absolutely perfect. Now, you can’t tell that any work was done at all, and I am pretty picky. His craftsmanship is incredible. He also pointed out some problems that a different installer had made which allowed us to have our window re-insulated and waterproofed. That will save us so much money in heating costs and potential insect, water damage—he has a real heart for his clients and wants to make sure their house is perfect as possible. We will be hiring Mr. Aponte again for additional projects very soon, thank you so much!"
Response time6 hrs
4 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for GEM Plumbing & Heating
GEM Plumbing & Heating
1.0(
2
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Marion, MA and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

With over 75 years of experience, GEM provides trusted plumbing services for homeowners in the Plymouth, MA area, as well as across Cape Cod. Our licensed plumbers handle everything from leak repairs and drain cleaning to water heaters, fixture installations, and emergency plumbing service.\n\nWhether you're dealing with a clogged drain or a sudden leak, we deliver fast, reliable solutions to keep your home running smoothly.

New Thermostat
During the removal
During the removal
After
During the removal

+16

Response time40 mins
Response rate100%
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Basement Waterproofing FAQs, answered by experts

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 not properly maintained, an underground downspout may damage your home's foundation. A clogged downspout can back up, causing water to pool around the base of your home and seep into the foundation. Regular inspections and maintenance keep your downspout in good working order, preventing damage and protecting your home.

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.

Standing water under your house can threaten its structural integrity. If water pools in your crawl space, it can damage the foundation and the structure above ground, causing wood rot, mold, and other problems. If you have a concrete foundation, standing water under your house can also make your foundation slabs crack.

In most cases, a crawl space will not dry out on its own unless the moisture comes from an uncommon flood and isn’t expected to be a recurring issue. For most homeowners, moisture problems in the crawl space will only continue to get worse over time, so addressing the underlying problem with gutter systems or a foundation drainage system and setting up a preventative solution like a dehumidifier is necessary.

The Marion, MA homeowners’ guide to basement waterproofing services

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