Mar-flex offers a comprehensive line of waterproofing solutions.

Along with insulation services St. Croix Insulation offers waterproofing and damp-proofing services to all of Western Wisconsin. The St. Croix River Valley chooses St. Croix Insulation more times then not in all their water proofing and damp-proofing needs. Mar-Flex is one of St. Croix Insulations main suppliers for waterproofing and damp-proofing.

Mar-flex offers a comprehensive line of waterproofing solutions – from virgin polymer membranes to fortified elastomeric membranes, in both water based and solvent based. And they come with one of the best warranties in the industry.