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Verified Reviews for Basement Waterproofing pros in Gap, PA

*The Angi rating for Basement Waterproofing companies in Gap, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Gap, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on April 27, 2026

Find Basement waterproofing pros in Gap

Avatar for Waterproofing One
Waterproofing One
4.7(
152
)

Serving Gap, PA and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Fast Estimate , had many estimates from other companies and Waterproofing One was the best price for Us , Joe was very confident and knowledgeable and gave Us good suggestions for our leaking basement, the crew that installed the French drain inside were great, install looks very professional. I figured we’d have a mess to clean up after the install understandably. But wow they did an incredible job cleaning up afterwards. Not a speck, they even spent time cleaning off the driveway and front lawn. We have been through one major rain storm since the install and not a drip of water. So far so good , we are getting an expected 3” in the next 24 hours and it’s a relief to know I don’t have to stress about rain storms anymore!"
Additional Photos
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+7

11 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
183
)

Serving Gap, PA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"I helped my daughter with this crawlspace encapsulation work on her house. I solicited 3 quotes and it was an easy choice to go with Basement Waterproofing Nationwide. From the initial inspection and quote with Tim, the financing and finally the work with Will and his crew, everything went well. They completed the job to my expectations, answered all my questions and kept me informed all along the way. They actually finished the job in 3 days instead of 4. I highly recommend giving them a chance."
Additional Photos
Response time2 days
32 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Basement Gurus, LLC
Basement Gurus, LLC
4.7(
207
)

Serving Gap, 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
642 neighbors recently requested a quote
Recommended by72%of homeowners
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Basement Waterproofing Specialists
4.0(
596
)

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

Serving Gap, 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%
152 neighbors recently requested a quote
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Avatar for Highlander Waterproofing, Inc
Highlander Waterproofing, Inc
4.2(
163
)

Serving Gap, 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
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Avatar for Caln Concrete and Waterproofing, LLC
Caln Concrete and Waterproofing, LLC
4.9(
5
)

Serving Gap, PA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

We are a small business located in Caln Township that services the Chester County area. We specialize in basement waterproofing and foundation crack repairs, while also taking on other small home improvement jobs. We are licensed, insured and BBB accredited. Check out pictures of our work on HomeAdvisor and also at our website. Have questions or want to schedule an estimate? Give us a call at 610-597-9379.\n\n

Finished Job
Finished Job
Drywall Installation
French Drain
Front Room

+9

Response time10 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Groundworks
Groundworks
3.8(
359
)

Serving Gap, PA and surrounding areas

Approved (Corporate)

In business since 1975

Free estimates

Warranties offered

"Installed waterproofing system for our basement. Professional, timely and easy to work with. The system is working very well."
Basement
Basement
Basement
Basement
Foundation

+16

Response time11 hrs
397 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for The Driveway Lady LLC
The Driveway Lady LLC
4.2(
254
)

Serving Gap, PA and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"Quality work. Very meticulous. I would recommend this company for driveway sealing -- a good choice."
Additional Photos
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Additional Photos

+36

Response time2 days
Response rate99%
1 neighbors recently requested a quote
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Avatar for Zoom Drain
Zoom Drain
4.5(
118
)

Serving Gap, PA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

Here at Zoom Drain, we are best known for fast response times and our ability to provide focused solutions to drain & sewer problems. If you are having issues or planning for future maintenance, call us now at 610-628-3360 for a FREE on-site estimate. From sinks, toilets and tubs to main lines and sewers, our team of drain & sewer professionals are ready to provide you with fast, expert services.

Excavate front yard to expose old sewer line. Install shoring for safety at depths greater than 5’. Remove old sewer line and install new PVC sewer. Make connections to remaining pipe with underground couplings. Water test to ensure proper drainage with no leaks and encase new pipe in stone for support and protection. Remove shoring and backfill with existing soil. Tamp soil and grade trench.
Residential Sewer Cleanout Installation
Residential Curb Trap Replacement
Excavate front yard to expose old sewer line. Install shoring for safety at depths greater than 5’. Remove old sewer line and install new PVC sewer. Make connections to remaining pipe with underground couplings. Water test to ensure proper drainage with no leaks and encase new pipe in stone for support and protection. Remove shoring and backfill with existing soil. Tamp soil and grade trench.
Residential Sewer Cleanout Installation

+27

Response time2 hrs
Response rate96%
63 neighbors recently requested a quote
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Showing 1-10 of 92
Basement Waterproofing questions, answered by experts

Make sure you're calling in the right expert to help repair and/or clean your crawl space. A serious issue may require multiple experts that include a local mold remediation pro, an HVAC pro, a foundation pro, and a plumber. You should also consider using a nearby junk removal service to avoid handling debris that could be covered in mold, fungi, rot, or asbestos.

A sump pump can be added to an existing basement. To do this, you will need to use a jackhammer or sledgehammer to break up the concrete and dig a pit. You will also need to create a hole in your basement wall to run the discharge pipe through.

There are a few downsides to a wet room, the most important of which is the risk of mold growth from the moisture and humidity. Standard bathrooms can have the same issue, but wet rooms are more likely to experience problems because water is less carefully contained. You also have less privacy since the entire bathroom is open, and the room must include waterproofing, which makes wet rooms more expensive to install than regular bathrooms.

Yes, you can finish a basement that leaks, as long as you address the leak first. Before finishing a basement, you’ll need to repair any cracks in the walls and waterproof the basement to prevent future leaks. It’s much harder to clean up a water leak from a finished basement than an unfinished one, so preemptively addressing any leaking areas prevents expensive repairs in the future.

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 Gap, PA homeowners’ guide to basement waterproofing services

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

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