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Best basement waterproofing pros near Sullivan, PA

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

Avatar for Groundworks
Groundworks
3.7(
362
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Sullivan, PA and surrounding areas

Approved (Corporate)

In business since 1975

Free estimates

Warranties offered

"I am very happy with the work that Bakers Waterproofing did for my basement! They were quick, efficient, and took care doing a great job. Lukas Selleck, Jason Shaeffer, and Dalton Bardole were virtuous and professional. I would highly recommend them to anyone that are in need of waterproofing."
Basement
Basement
Basement
Basement
Foundation

+16

Response time11 hrs
558 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for NEPA Buildworks LLC
NEPA Buildworks LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sullivan, PA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

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

Basement Water Mitigation
4 neighbors recently requested a quote
Avatar for Liberty Basement Systems
Liberty Basement Systems
5.0(
1
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sullivan, PA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Seamless experience from start to finish. Todd was super knowledgeable and through on the consult/ sales end. The install team made quick work of the project. Their work was top notch and my basement is now completely dry. I would recommend their services to anyone with basement or foundation issues."
Stair-step cracks on your foundation wall are a common sign of foundation problems caused by settlement and soil issues.
During heavy rainfall, water leaked into the basement through the walls.
Bottom beam anchored to the floor.
SaniDry Sedona is the world's most efficient, high-performance dehumidifier and filtration system and is a crucial element in basement waterproofing and crawl space repair. As a result of its compact size, it occupies less space in a basement and can easily be tucked away in a crawl space. The unit eliminates damp, musty odors by drying and filtering the air, and it costs less to run than other dehumidifiers. It filters mold spores, dust mite droppings, dust and other particles, and it keeps hu
The wall height is measured to cut PowerBrace beam to its length and the bottom of the beam is anchored to the floor. The top bracket is installed and the beam is secured. This patented design can be straightened over time, eliminating future bowing, buckling, or inward tilting movements.

+18

34 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Midstate Basement Authorities, Inc
Midstate Basement Authorities, Inc
4.7(
39
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sullivan, PA and surrounding areas

In business since 2012

Free estimates

Warranties offered

"In response to my initial email inquiry, Eric, the owner, came to the house and we discussed all of the issues and how they would deal with them. He took measurements and pictures and was very professional, polite and encouraging. Within a few days he emailed me a very precise and detailed proposal outlining all three jobs and the estimated cost. I immediately accepted. Adam came to the house and took some more measurements and pictures and said the work would begin the following week and take three days. The required permits were taken care of right away. As scheduled, Paul (the onsite foreman), Lloyd and TJ showed up and began to work. Braces were installed against the basement wall after the cracks were repaired. On the exterior a French drain was put in along the side of the house extending to the ditch out front. The old walkout was excavated and a new permentry door was installed. The work went as planned with no problems and was finished in three days. All debris was taken care of and they cleaned up when they were through. All of my questions and concerns were answered. Adam followed up the day after the work was completed to see if I was satisfied and to answer any additional questions. I also must give kudos to Cynthia, the office manager, who made the paperwork and payment process smooth and effortless. The quality of the work and the quality of the employees is just exceptional.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Recommended by96%of homeowners
Avatar for Better Basements & Beyond
Better Basements & Beyond
4.7(
30
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sullivan, PA and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"I was very impressed with Seth and his crew! We had a horrible water situation in our basement (bought an older home and the first heavy rain revealed serious water issues! ugh!) and knew it needed a serious solution if we wanted to be able to use our basement for storage. Seth provided a free quote and even suggested additional solutions with pricing options. He communicated with me quickly by text and took the time to explain every step of the process. At the end of each work day, he would walk me through all the work that had been done that day (again, answering any of my questions). The guys worked hard for four days, in some pretty hot and humid conditions! Seth also pointed out some other problem areas in my basement as they did their work and made recommendations on how to resolve those issues (there was some wood rot on the stairway area and a leaking water bib; he even gave me the name of a contractor for replacing my rain gutters outside when I was ready). Seth installed a basement dry system along all four walls of the basement, two sump pumps in opposite corners, and a lateral across the middle of the basement. I chose Better Basements & Beyond because it is a local company (not some big box company just out to make a buck) but also because Seth actually does the work himself (again, no fancy representative doing a sales pitch who doesn't get his hands dirty). He stands by his work and makes sure it it done to the highest standards. I would HIGHLY recommend this company to anyone who needs water mitigation services."
Built into a office
Office
Tiled floor
Tiled floor
Welping station

+21

Response time20 mins
Recommended by96%of homeowners
Avatar for Mid Atlantic Waterproofing
Mid Atlantic Waterproofing
3.5(
45
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sullivan, PA and surrounding areas

In business since 1999

Free estimates

Warranties offered

"Don't be pressured into having the work done on their schedule. I had way too much "stuff: in my basement, that is now pushed to the center of the basement and even though is was covered with plastic, everything is covered with white dust. As far as the finished drainage work, I'm very pleased."
 Before
Before
Before
  After
After

+30

Recommended by57%of homeowners
Avatar for Pursell Basement Solutions
Pursell Basement Solutions
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Sullivan, PA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"I got a great price from Zac, for digging a trench around my inside basement walls, more than 50 percent less then another company, his crew showed up and finished the job in 2 days cleaned up great and where very courteous, no more problems with a wet basement. Brian Bechtold from Penns Creek"
Showing 1-10 of 24
Basement Waterproofing FAQs, answered by experts

You don’t always need to install a dehumidifier in your encapsulated crawl space, but it might be a good idea in certain instances. If you notice obvious signs of condensation, mold, or musty smells permeating from your crawl space, a dehumidifier can help. It’s ideal for homes in humid areas.

In a worst case scenario, structural damage like rust on metal beams, rotting wood, and swelling on doors and windows can signal moisture problems that would benefit from a dehumidifier.

Yes, crawl spaces can attract bugs, especially since moisture tends to build up in the space, and moisture attracts pests. A good way to prevent pest infestation in your crawl space is to install a vapor barrier—called crawl space encapsulation—on the interior to seal the space, along with a French drain or some other kind of foundation drainage system outside to keep runoff out of your crawl space. You can also seal foundation cracks and repair damages to cut off access to pests.

Yes, it is possible to over-dehumidify a house by removing too much moisture from the air. This can create an overly dry environment that negatively affects those with respiratory or skin issues, and may cause your skin, hair, and sinuses to feel dry. However, this is unlikely to happen with most modern dehumidifiers, as they are equipped with moisture sensors and adjustable settings. These features allow the unit to pause automatically when the desired humidity level is reached, preventing the air from becoming uncomfortably dry. In contrast, older or more basic dehumidifiers left running for too long could potentially over-dry the air. To avoid this, aim for a balance between removing excess moisture and maintaining a comfortable environment. You can often monitor your home's humidity levels using a modern thermostat for guidance.

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.

The Sullivan, PA homeowners’ guide to basement waterproofing services

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