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Below-Grade Waterproofing Supplies – Commercial Construction

Garvin is your distribution and training partner for leading waterproofing systems to protect your building envelope. Our products and systems safeguard your structure and help mitigate future repair costs.

Below grade waterproofing

We supply a wide array of below-grade waterproofing products in three areas:


  • Blind-side (positive) membranes
  • Cold-applied membranes
  • Damp-proofing products
  • Liquid-applied membranes

Waterproofing accessories:

  • Primers
  • Mastics
  • Insulation
  • Protection board
  • Self-adhered flashings
  • Drainage composite & fabrics
List of Manufacturers

Waterproofing Supplies

We’re intentionally picky – Garvin only sells the best below-grade and foundation waterproofing products. We’re a licensed distributor for top companies such as:

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Why Garvin for Commercial Waterproofing Supplies?

Through nearly 75 years and three generations, Garvin has been synonymous with commercial waterproofing systems. Scratch that – we mean waterproofing solutions. As with all construction weatherproofing product lines we offer, you’re getting a true partner in business:


Commercial waterproofing is our expertise, unlike many other Northeast distributors who have a broader focus on building materials. Our dedicated Product Managers can explain the nuances of each good/better/best option, and guide you toward the right application and budget fit.


We’re the Northeast’s only waterproofing supplier with in-house training services for new products and systems. And we’ll work with you transparently to help you navigate market changes, alternative sourcing solutions, and bid opportunities.


Managing a project supply chain is complex work – so we go above and beyond to give you faster, fuller support.

From a liquid waterproofing membrane for a plaza, to the Sept. 11 Memorial Reflecting Pools, Garvin has a solution for every commercial construction job:

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Contact Garvin

Is building-envelope waterproofing stressing you out? Garvin is a waterproofing material supplier for the entire Northeast, with convenient locations in New York, New Jersey, Maryland, Massachusetts, and Connecticut.

To consult with our sourcing and materials experts, fill out this form: