Serving PA & NJ Since 1989
Providing expert basement waterproofing & crawl space repair for a healthier home!
Jamison Basement Waterproofing is Healthy Basement Contractor in Greater Philadelphia

Jamison Basement Waterproofing is your Grate Products® Healthy Basement Contractor in Greater Philadelphia

In 2006, Grate Products, LLC was founded to distribute quality basement & crawl space drainage & moisture control products to exclusive authorized contractors throughout North America. Grate Products establishes best practices and provides employee trainings for their certified contractors in customer service, business development and home improvement installation, effectively raising the bar in the home services industry. GrateDrain™, GrateSump™ and GrateTrench™, among other industry innovations, have revolutionized the health, and increased the usable space in thousands of homes. Founder and inventor, Steve Andras, pioneered the idea of closed drainage systems, protecting homes from damp, unhealthy and unconditioned air from infiltrating the family's living space.

The authorized Grate Products installation companies are a close network of contractors spread out across North America, committed to protecting homeowners from the dangerous conditions that can exist in their basements or crawl spaces by providing the Grate Products' innovative solutions and processes. The goal at Grate Products is to make every home in the world healthier by helping contractors to provide their clients with products & services that promote a healthy basement and crawl space environment.

Steve continually strives to help homeowners make their basements, crawl spaces & homes healthy and energy efficient. He has served as President of the National Association of Waterproofing & Structural Repair Contractors (NAWSRC) in 2000-2001 and President of the Basement Health Association (BHA) in 2010-2011. Steve currently serves as the Education Committee Chairman of the Basement Health Association. 

With his leadership, Steve is helping create a new and exciting industry, with the goal of improving the quality of life for millions of people through total basement health. Steve's vision is to raise the bar for all the home service trades, starting in the basement environment and evolving throughout all home services, to the benefit of all consumers.

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The exclusive network of local, Grate Products' Authorized Contractors provide you with a complete, customized solution that suits your needs and your budget. The Grate Products' goal is to provide you with a permanent solution to your basement issue -- one that is backed by a written lifetime warranty, and is transferable to the next owner of the home, should you decide to sell in the future.  Best of all, the "Healthy Basement Certificate" warranty, provided by all Grate Products Authorized Contractors is nationally backed by the Grate Products International Headquarters. If something ever happened to your local Grate Products contractor, and they were unable to perform your warranty service; Grate Products, LLC would take responsibility and back the local warranty to its fullest. 

With a healthy, Grate Products solution to your basement or crawl space problem, you have the "peace-of-mind" that your home will be a healthier place to live, with more usable space for your family to enjoy. That, is the Grate Products Promise!  

Call our basement waterproofing experts today at 610-200-6858 or fill out our inquiry form for a free basement inspection.

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Philadelphia’s highest rated and most reviewed basement waterproofing company!

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Why Choose Jamison Basement Waterproofing?

Your Basement Is Our Passion

From consultation to completion, we take the extra time to make sure each job is done right, insuring your Basement will look great and function efficiently for years to come.

Quality & Trust

At Jamison Basement Waterproofing we take great pride in quality workmanship and customer focused service. We have been awarded multiple Houzz and Angie's list honors and encourage our customers to reference our testimonials.

Experience And Assurance

Family Owned and Operated for over 25 years – Our certified staff will exceed your expectations. As with all of the work we do, your family's comfort and safety are our highest priority.


Healthy Basement & Healthy Crawl Space Certificate

Our high standard of quality ensures a healthy basement with a Nationally Backed Warranty.

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Jamison's Affiliates
  • Jamison Basement Waterproofing is Angieslist super service awarded
  • You Deserve a Healthy Home | Basement Health Association
  • bbb accredited business a+ | Jamison Basement Waterproofing
  • Jamison Basement Waterproofing Angie's List 2015 Award
  • Certified Egress Specialist
  • Lead Safe Certified
  • The Main Line Chamber