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Best basement waterproofing pros near Saint Thomas, PA

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Top-Rated Basement waterproofing pros in Saint Thomas - Updated Nov 2026

Basement Waterproofing Specialists
4.0(
597
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Saint Thomas, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I had a serious basement flooding problem. I had my basement waterproofed 2 times. it didn't work! Basement Waterproofing Specialists installed a commercial drain system and after 2 years I have never had a drop of water they are AMAZING, thank you Basement Waterproofing specialists YOU ARE THE BEST!"
Foundation Repair
 Before and After Stone Work
 Mirra Drain
 Mold Remediation
 Clean Work Areas

+67

Response time11 hrs
240 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Once & Done Waterproofing Solutions, LLC
Once & Done Waterproofing Solutions, LLC
4.9(
62
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Saint Thomas, PA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Once and done waterproofing helped me out with a small annoying leak Iâ  ve had around a pipe. The owner called me right away, came out the next day for an estimate, and fixed the leak the day after. His crew is friendly and courteous and hard working. Explained every step they weâ  re doing. Did such a great job, I had the bury some drain pipes and install a rain water reservoir. Very reasonable pricing and veteranâ  s discount."
Demo and Install Phase
Demo  Phase
Demo and Install Phase
Install Phase
Demo and Install Phase

+14

Response time12 hrs
Response rate90%
5 neighbors recently requested a quote
Avatar for Liberty Basement Systems
Liberty Basement Systems
5.0(
1
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Saint Thomas, 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

32 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Trim-Tek Plumbing
Trim-Tek Plumbing
4.1(
9
)
Basement Drainage Channels - Install

Serving Saint Thomas, PA and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"We were fortunate to employ Trim-Tek Plumbing to repair a leaking supply line in an upstairs bathroom. Although this project was not a dire emergency, there were visible water stains on the ceiling in the lower level. Eli arrived exactly on time, diagnosed the problem quickly, and repaired the leak in a short time. Eli was both professional and personable. If we encounter any future plumbing problems, we will contact Trim-Tek. Martin C."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for MD Waterproofing & Radon Reduction, Inc.
MD Waterproofing & Radon Reduction, Inc.
3.9(
115
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Saint Thomas, PA and surrounding areas

In business since 1991

Free estimates

Emergency services offered

"Roland jr and his crew from MD Waterproofing did a great job under difficult circumstances. A previous renovation by a previous owner dropped the basement floor. What we didnâ t realize is that they had never added underpins so the foundation was undermined. Once Rolandâ s crew broke into a wall to solve a leak, they saw this. They explained the issue clearly and explained the remedy. We were able to quickly get a new quote for the additional work from our company contact, Steve Maney, who was very professional throughout this. Total cost for our house was just over $20k for underpinning two walls and redoing the associated French drains. We will definitely go with MD Water proofing to finish the last two walls, once we have the money saved"
Excavation
Finished Product
PVC pipe installation
Finished Product
Draintile Installation

+4

Response time3 days
Response rate94%
Recommended by87%of homeowners
Avatar for Thompson's Basement Waterproofing
Thompson's Basement Waterproofing
4.1(
226
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Saint Thomas, PA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"The work was messy but The crew was very hard working. The jackhammer hit a pipe under our sink. They came back to fix that. While the amount of water was drastically reduced in our basement, I will never feel secure enough to finish it. They have returned 4-5 times to troubleshoot the problem because their service has a lifetime guarantee. The last time they came (2 years after original job) they added another sump pump and redug one of the ditches. It seems to have helped but I still see a very small amount of water seeping through a few cracks in the floor. With two small kids in the house, it's exhausting to keep having service people in and out of your house. I'm not happy it took so many visits, but I think overall that they were fairly quick in responding to my calls and getting out to our house."
SUMP PUMPS
CRAWL SPACE AND REPAIR
FOUNDATION REPAIR
MOLD REMOVAL
Recommended by82%of homeowners
Avatar for Egress Windows by Cottrell
Egress Windows by Cottrell
3.8(
107
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Saint Thomas, PA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Denny recommended coating the walls with epoxy to seal the blocks and also an E•Z Breathe® Air Ventilation System. He and his coworker did a fine job, even going out of the way to coat the wall behind the oil tank. Due to the new ventilation system, we've already seen an improvement in the air quality in our home and notice that the basement smells fresh now. And we no longer have to run a dehumidifier! We'll certainly call them again if any further work is needed."
Handymen Project
Windows - Egress Project
Handymen Project
Windows - Egress Project
Windows - Egress Project

+18

Recommended by76%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 Saint Thomas, 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
Showing 1-10 of 32
Basement Waterproofing FAQs, answered by experts

Some basement waterproofing methods can actually cause your water or moisture problems to get worse, which is why it’s so important to call in a professional who knows how to solve your underlying issue and use the appropriate waterproofing methods. An example of this would be applying latex waterproofing paint to the insides of your basement walls without fixing the water issue outside. Doing so can trap moisture in the basement walls, which can promote mold growth, peeling paint, and even damaged concrete. However, when done by a professional, the only downside to basement waterproofing is the up-front cost.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

Installing storm windows can protect your home’s interior from heavy storms. Most storm windows are made with enamel-coated aluminum with screens and sliding glass panels. They also make your house more energy-efficient. The average storm window cost is $12,000, ranging between $4,250 and $19,850, depending on mounting, window types, glass types, and frame materials.

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

Yes, water and water vapor can seep through cracks in your basement floor, which means you should address all basement floor cracks, even if they don’t indicate structural issues. Sealing settling cracks and shrinkage cracks is a good idea to keep water and moisture outside where it belongs. Doing so can improve your indoor air quality, reduce the risk of mold growth, make your home more comfortable, and help prevent pest infestation.

The Saint Thomas, PA homeowners’ guide to basement waterproofing services

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