Below Grade Waterproofing Contractor Florida

Expert below grade waterproofing for foundations, parking podiums, elevator pits, and below-grade walls — engineered systems designed to last decades.

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Below Grade Waterproofing Specialists

Below grade waterproofing protects building foundations, parking podiums, elevator pits, utility tunnels, and any structural element below the water table or grade level from hydrostatic pressure and soil moisture. In South Florida's high water table environment, below grade waterproofing is a critical life-safety and structural longevity issue.

Restore Group FL Inc designs and installs comprehensive below grade waterproofing systems for new construction and remedial applications. Our licensed engineers specify the appropriate system — crystalline, sheet membrane, bentonite, or composite — based on site conditions, substrate type, and hydrostatic pressure.

Our Below Grade Waterproofing Contractor Florida Services Include:

  • Crystalline Waterproofing
    Penetrating crystalline systems applied to concrete walls, slabs, and foundations to block water at the molecular level.
  • Sheet Membrane Systems
    Pre-applied and post-applied sheet membrane waterproofing for below-grade foundation walls and slabs.
  • Bentonite Clay Systems
    Sodium bentonite waterproofing panels for below-grade applications with complex geometry or high water table.
  • Elevator Pit Waterproofing
    Complete elevator pit waterproofing including drain systems, sump pumps, and interior membrane lining.
  • Podium Deck Waterproofing
    Traffic-bearing and non-traffic waterproofing systems for parking podium decks and plaza decks.
  • Drain & Drainage Board
    Drainage board installation and drain system restoration to direct water away from below-grade structures.

Frequently Asked Questions

What is the difference between negative side and positive side waterproofing?
Positive side waterproofing is applied to the exterior face of the wall or slab — where water contacts the structure first. Negative side waterproofing is applied to the interior face, against hydrostatic pressure. Positive side is preferred but requires excavation; negative side is used for remedial applications where excavation is not feasible.
How do you waterproof an active water leak below grade?
Active leaks require immediate injection grouting to stop water flow before applying a permanent waterproofing system. We use polyurethane or epoxy injection to seal active leaks, then apply the appropriate long-term waterproofing solution. Our team has extensive experience in occupied buildings where minimizing water intrusion is urgent.

Ready to Restore Your Property?

Contact us for a no-obligation structural assessment. Our licensed engineers respond within 24 hours.