About Us


Waterproofing One located in Phonenixville, Chester County PA delivers excellence, proficiency, and professional results. It is from great results that we find the fulfillment of our business goals. When you choose to work with us, you will expect to work with a company that truly cares about your objectives, time, and spending plan.

We understand how important it is for our clients to trust us. Our clients depend on us to be ethical, reliable and responsible. We have a track record of integrity, expertise and customer satisfaction.



Best Professionals and Top Notch Service


Our dedication to quality services is proven when clients are happy about the results and when more than half of our ongoing businesses are from client referrals. We give importance to the relationship we establish with our clients and they trust our commitment to work excellence, budget, and schedule. We make sure our clients get expected results; we look at their satisfaction as the cornerstone of our success.

We pay attention to the smallest details of the projects we work on. We offer honest and competitive pricing without compromising on quality of service. From roofing, basement waterproofing, water damage repair, and water restoration projects, down to other general contractor services, you can expect great results from us.

40 Reviews

Reviews From and more

Garry M.
April 27, 2018
12-22-2017 Review by Garry M. in Douglassville, PA Project: Waterproof a Basement or Foundation Waterproofing One did an outstanding job waterproofing my basement. They were very professional when they were on site. They made sure no dust entered the living space and covered e ...
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Aurelien E.
April 26, 2018
03-26-2018 Reviewed by Aurelien E. in Claymont, DE Very professional, a crew of 8 came and spent only about five hours re-doing the draining system of my basement, and treating the mold. The work was excellent and I have had a dry basement ever since!
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Jason C
April 26, 2018
Review by Jason C. in Franklinville, NJ Project: Waterproof Inspection / Certification Service Waterproofing One did a great job waterproofing one side of my basement. Very friendly and reasonably priced.
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Mark Towns
April 25, 2018
Joe came in an he was the first contractor that fixed my foundation crack and got rid of the water problem we had for years. He is a wonderful person and a great contractor.
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Steve Heller
April 16, 2018
We were very happy with the price ,service and the results. It has been three years since any water problems.
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Martin Perns
April 15, 2018
They did an excellent job and finally, after years of other companies trying to correct a foundation/waterproofing problem, they did the job. Thank You
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Herb Robinson
April 14, 2018
I was told to call them by my sister. Wow was she correct. Joe saved me thousands of dollars and my foundation repair also corrected a water problem we had for years, Great people and the work was excellent.
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Chip Kelly
April 14, 2018
They did a perfect job and finally after suffering with water problems we found the right company.
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Jen Shur
April 14, 2018
We were very pleased with their work. thank you
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Art Polite
April 13, 2018
Waterproofing One fixed a problem we have had for many years. They were the first company that actually corrected a huge issue for my house.
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Scott Peterson
April 13, 2018
Waterproofing One was a pleasant experience. They did as promised and all went well. Thank You
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(800) 508-4144

Waterproofing One

4093 Hollow Rd
Phoenixville, PA 19460

Serving Pennsylvania, New Jersey and Delaware

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Pa Lic#: Pa057647
NJ Lic#: 13VH09291700
DE Lic#: 17-92051-13-000