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Best basement waterproofing pros near Valley Forge, PA

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Top-Rated Basement waterproofing pros in Valley Forge - Updated Nov 2026

Avatar for Waterproofing One
Waterproofing One
4.7(
152
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Valley Forge, PA and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Waterproofing One was extremely professional throughout the process and the entire team worked extremely hard. My crawlspace is very large so the team put in a lot of time and effort to ensure there would be no issues for many years to come."
Additional Photos
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+7

6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for AJ Waterproofing
AJ Waterproofing
4.8(
207
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Valley Forge, PA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"The job/work couldn’t have went any better and smoother then it did, not to mention the cleanliness and customer service provided from beginning to end went above and beyond my expectations. Inside my basement they made sure objects and furniture were moved out of the way of the working area and covered for protection. They also made sure the walkways and paths used to remove debris out of the basement and new materiel into the basement were covered to prevent surfaces from getting dirty or damaged. Just overall a very thorough and diligent process from start to finish. I would highly recommended AJ Waterproofing and most certainly would rehire them for any future business if needed."
Additional Photos
Additional Photos
Additional Photos
Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Basement Gurus, LLC
Basement Gurus, LLC
4.8(
217
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Valley Forge, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Warranties offered

"We had a great experience with Basement Gurus. Their team completed waterproofing work in our basement and was professional, knowledgeable, and thorough throughout the entire process. They took the time to explain the work, answered our questions, and made sure everything was completed properly. We appreciate their attention to detail and the peace of mind the completed waterproofing has given us. We would definitely recommend Basement Gurus to anyone in need of quality basement waterproofing services."
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
531 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.7(
113
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Valley Forge, PA and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Hired them for 3 projects I have installed this basement waterproofing solution in 2 homes. System speaks for itself. Nothing better on the market. Work was first rate. Expectations were presented prior to the project. Details on what would happen and how the project would go. Would not hesitate to use again ERV installed New basement egress. This project did not go as planned, but not at the fault of basement systems. Was originally supposed to get a BILCO door but due to unforseen issues, that was not able to happen. They ended up installing a new staircase from my basement to ground level. Work was first rate and ended up better than a bilco door. Company re landscaped and everything is as it was. All work performed was top notch and no issues on anything they have done"
Show Booth
Tough day
Found it in a crawlspace
What is it?
Found it in a crawlspace

+142

Response time1 day
Recommended by88%of homeowners
Avatar for Once & Done Waterproofing Solutions, LLC
Once & Done Waterproofing Solutions, LLC
4.6(
61
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Valley Forge, PA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"First attempt at remediation was disappointing, but subsequently a more aggressive effort was made. I must say I was pleasantly surprised at the level of customer service and concern. In a time when warranties and customer satisfaction are just lip service, it is a refreshing experience to deal with a company that values its customerâ s concerns. I would recommend you consider Once And Done for your basement waterproofing needs.."
job in progress
job in progress
job in progress
job in progress
job in progress

+14

Response time11 hrs
34 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Dry Tech Waterproofing Solutions
Dry Tech Waterproofing Solutions
4.4(
276
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - RepairBasement Drainage Channels - Install

Serving Valley Forge, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Every phase of the basement waterproofing project was first-rate. Through sketches, the inspector/technician took the time to explain how a sub-floor pressure relief system works. In a knowledgeable and professional manner, he designed the system for our basement and presented a detailed project proposal with drawings. An affordable cost estimate was reached. Also, financing guidance was given to obtain a deferred interest loan. Three days later, the construction crew arrived to begin installation of the system. They were attentive to specific concerns and answered all questions completely and politely. Through discipline and hard work, they completed the job in two days, one day ahead of schedule. Upon completion, including a thorough clean-up, a tour was given of the newly installed system. Dry Tech Waterproofing Systems is a high quality and efficient company that I will highly recommend to family, friends, neighbors, and others."
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%
180 neighbors recently requested a quote
Avatar for Del-Val Basement Waterproofing, LLC
Del-Val Basement Waterproofing, LLC
4.6(
18
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Valley Forge, PA and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"My basement was getting wet every time it rained.. I called and was able to have an inspector come out right away for a free estimate. Everyone was so nice and very professional. I now have a dry basement! I would highly recommend them if you are in need of any waterproofing or foundation services!"
Subfloor Pressure Relief
Drain board with system
Fortress Floor Coating
Dimple board
Exterior Sump area

+2

Response time9 hrs
Response rate99%
96 neighbors recently requested a quote
Basement Waterproofing Specialists
4.0(
597
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Valley Forge, 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
289 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Completely Dry Waterproofing
Completely Dry Waterproofing
4.6(
16
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Valley Forge, PA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"I would recommend Completely Dry Waterproofing because they have excellent salespeople who thoroughly explain the work to be done. They arrive promptly, work neatly, clean up thoroughly, and offer a very competitive price. And, my basement is dry where they completed their work."
Response time1 day
Response rate94%
8 neighbors recently requested a quote
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Showing 1-10 of 240
Basement Waterproofing FAQs, answered by experts

A vapor barrier can last over 20 years, but they are vulnerable to pests, flooding, and other natural disasters. If your home weathers a storm or is treated for any pest infestation, make sure to have a drywall pro come check the integrity of your vapor barrier. It’s also important to have a pro install a vapor barrier since improper installation can lead to tears or leaks in the barrier that shorten its lifespan.

The foundation repair that will work best varies based on the extent of the damage, the underlying cause, soil conditions, weather conditions, and more. Permanent foundation solutions like underpinning and exterior drainage solutions are better than temporary fixes that don’t address the source of the issue. Some examples of more temporary solutions include mudjacking or slabjacking, waterproof paint, and dampproofing. The best course of action is to have a reliable foundation specialist inspect your issue, treat the underlying problem, and restabilize your foundation.

No, you don’t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know how to waterproof your basement to prevent ongoing problems.

If a crawl space isn’t vented, there can be moisture buildup, which can lead to mold damage, easily destroying the foundation of your home. A closed-off crawl space can trap heat, which can be useful in the winter, but can also trap dangerous gases and prevent clean air from entering the home through the floorboards.

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

The Valley Forge, PA homeowners’ guide to basement waterproofing services

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