HULK spray-applied waterproofing membrane being installed on a foundation wall by Mariner Construction

Foundation Waterproofing

Dry Foundations.
For the Long Haul.

Certified installers of HULK Waterproofing Systems. Seamless spray-applied membrane for new foundations, ICF construction, and basements that are already taking on water.

Foundation waterproofing


Below grade, water is a load like any other, and it is the one nobody can inspect once the hole is closed. A seamless spray-applied membrane bonds directly to the wall, with no laps and no fasteners for water to find. Not the black tar coating most foundations get, which slows moisture but does not stop water. Mariner Construction is a certified installer of HULK Waterproofing Systems.

We excavate, form, pour, waterproof, install drainage board, and backfill. We also take the waterproofing scope on its own as a sub for other builders.

  • Below-grade and above-grade
  • Adheres to concrete, masonry, wood, and metal
  • Compatible with drainage boards, insulation, and full foundation assemblies
  • Residential, commercial, and agricultural construction
Completed waterproofing membrane on a basement foundation wall — Mariner Construction, Central Maine
Certified installer

Where we work


We waterproof foundations across Central Maine, around Augusta and the Belgrade Lakes: Augusta, Manchester, Winthrop, Readfield, Mount Vernon, Belgrade, Rome, Smithfield, Fayette, Wayne, Sidney, Litchfield, Gardiner, and West Gardiner.

Get an Estimate


Tell us about your project, whether it's a full set of plans or just an idea. We follow up to talk it through, usually within two business days.

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