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TRUSTED BY CORNWALL, PA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon25
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Cornwall

Avatar for Basement Gurus, LLC
Basement Gurus, LLC
4.7(
207
)

Serving Cornwall, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Warranties offered

"From start to finish this company gets things done the right way. I would highly recommend to anyone needing any type basement work done especially waterproofing. These guys are the best in the business! Thank you Basement Gurus for my dry basement."
100 Ft 4 inch HDPE to drywell
Concrete Replacement
Egress Installation
Walls After Wall Pin Installation
After Concrete has been removed

+339

Response time1 day
543 neighbors recently requested a quote
Recommended by72%of homeowners
Avatar for Once & Done Waterproofing Solutions, LLC
Once & Done Waterproofing Solutions, LLC
4.6(
61
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"I had a previous company come in to waterproof my basement and they charged me more than Once and Done and did a horrendous job. They didn't do it correctly and more mold grew. Once and down came in, tore out the previous work and put in their system and my basement is completely dry even during the wettest months & completely mold-free. They gave excellent customer service and priced the job VERY reasonably. This is an honest company and do super work. I would give them 10 stars if I could."
job in progress
job in progress
job in progress
job in progress
job in progress

+14

Response time11 hrs
43 neighbors recently requested a quote
Recommended by92%of homeowners
Basement Waterproofing Specialists
4.0(
596
)

Serving Cornwall, 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
158 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Dry Tech Waterproofing Solutions
Dry Tech Waterproofing Solutions
4.4(
273
)

Serving Cornwall, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Super professional, efficient, and great finished product. Weâ re very happy with the work and would definitely recommend this company to anyone looking for a basement waterproofing system."
Digging out the area
Filling in the crack
During
Insulation board is placed over the Water Shield
Water Shield

+24

Response time8 hrs
Response rate99%
148 neighbors recently requested a quote
Avatar for Highlander Waterproofing, Inc
Highlander Waterproofing, Inc
4.2(
163
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Giulio and Kevin went above and beyond to help us get this job finally done..customer service was also fantastic..foreman John was very nice and explained everything when we had questions..i would definitely recommend Highlander waterproofing to anyone who needs their services..they are exceptional"
Before and After
After Pic of Basement Wall Rebuild
After Pic of Basement Waterproofing Project
After Pic of Basement Waterproofing Project
After Pic of Basement Waterproofing Project

+18

Recommended by90%of homeowners
Avatar for Groundworks
Groundworks
3.8(
359
)

Serving Cornwall, PA and surrounding areas

Approved (Corporate)

In business since 1975

Free estimates

Warranties offered

"This is the second time we have hired Groundworks (formerly Bakers Waterproofing) to perform work at our house. The first project was in 2017 when we had the waterproofing system installed. We called Groundworks a few weeks ago to get an estimate on lifting our front sidewalk and stairs that have sunk a lot over the past year. The steps had sunk to the point that the railings were not connected to the house, making it very unsafe for anyone coming into the front of our home. Aaron Lenker & Corbin Gillichbover were very professional and knowledgeable when they arrived to assess our sidewalk and steps to lift them. They left our sidewalk and the surrounding area better than when they arrived. Our steps and sidewalk are now level, and the railings are securely attached to the house again. We are thrilled! I would highly recommend Groundworks if you need a basement waterproofing system or any concrete lifted."
Basement
Basement
Basement
Basement
Foundation

+16

Response time11 hrs
372 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Liberty Basement Systems
Liberty Basement Systems
5.0(
1
)

Serving Cornwall, 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

20 neighbors recently requested a quote
Recommended by100%of homeowners
Hydro-Solutions, Inc.
3.2(
3
)

Serving Cornwall, PA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

Hydro-Solutions, Inc., are experts in Basement Waterproofing and Foundation Repair. We are a locally owned and operated company, that values honesty and integrity in all aspects of our business. Our dedicated team of professionals, have many years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

Response time5 hrs
Recommended by100%of homeowners
Avatar for American Waterproofers, Inc.
American Waterproofers, Inc.
4.7(
69
)

Serving Cornwall, PA and surrounding areas

In business since 1990

Free estimates

"American Waterproofers provided excellent work and were very fair and accommodating. It has rained several times since the work was done and the basement has been bone dry. I highly recommend this company for all your waterproofing needs."
My jobs
My jobs
My jobs
My jobs
My jobs

+27

Response time10 mins
Response rate100%
Recommended by96%of homeowners
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Basement Waterproofing questions, answered by experts

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

In most cases, it is safe to live in a home with minor foundation problems, but you should not let the issues persist. Virtually all foundations have small cracks from normal settlement, which are not a structural concern but should be sealed to prevent water intrusion. However, major damage—such as large structural cracks, sinking foundations, or bulging walls—can make a home unsafe. Other issues that can pose safety and health risks include poor indoor air quality from mold or pests, uneven floors, and rotten beams or joists. It is always best to have a foundation repair expert or structural engineer inspect any issues to determine if your home is safe to live in.

The best way to ensure the ground next to your home’s foundation drains properly is to divert water away from it as much as possible. While a flood wall can stop water from entering the house, gutters and spouts can help direct rainwater and melting snow away from the foundation. Keep your gutters as clear as possible from dead leaves and other yard debris so they can effectively divert water from your house. Add extenders to the spouts so the water runs out and away from your home, not into the surrounding soil.

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

The Cornwall, PA homeowners’ guide to basement waterproofing services

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