Mar-flex Waterproofing and Building Products is a leader in above- and below-grade building envelope systems. Our mission to help architects, builders and contractors ensure the safest, driest environments possible.

View our full product line or browse our website to learn about all of our residential basement waterproofing, commercial foundation waterproofing, and window wells, along with concrete repair, air barriers, and more green contractor products.

In order to develop premium products for residential, multi-family and commercial construction, the research labs at Mar-flex are continuously pursuing new solutions to keep pace with changing codes, regulations and requirements.

Our commitment to "best quality" air barrier systems, waterproofing membranes, drainage boards, and egress window wells, in particular, has allowed us to become a leader in the building industry.

We want to be sure you're fully satisfied with Mar-flex as your one-stop source for foundation waterproofing and concrete building products.