Below-Grade Waterproofing. Certified. Florida.

Foundation walls. Parking garages. Elevator pits. Tunnels. Planter boxes. We're certified applicators for the three manufacturers that own below-grade waterproofing — and we've proven it underground across Florida.

📞 Request a Bid — 786-696-4829 See Our Certifications ↓
Certified Waterproofing Applicator For
SIKA
Certified Applicator
TREMCO
Approved Applicator
SOPREMA
Certified Installer

Three World-Class Manufacturers. One Certified Installer.

We don't sell you a brand. We install the right system for your project — backed by the manufacturer's warranty because we're their certified applicator.

SIKA
✓ Certified Applicator

Industry Leader in Below-Grade

  • SikaProof A+ — Pre-applied blindside membrane with signal layer for leak detection
  • Sikalastic — Liquid-applied waterproofing for foundation walls and split-slab
  • SikaProof P — Post-applied sheet membrane for positive-side applications
  • Sika Injection Systems — Polyurethane and epoxy crack injection for remedial repair
  • SikaBond — Waterproofing adhesive systems for demanding substrates
TREMCO
✓ Approved Applicator

The Standard in Fluid-Applied

  • TREMproof 250GC — Single-component fluid-applied waterproofing membrane
  • TREMproof 260 — High-performance hot-applied rubberized asphalt
  • Vulkem 350/351 — Traffic-bearing waterproofing for decks and plazas
  • Vulkem 116 — Polyurethane sealant for joints and penetrations
  • TREMDrain — Drainage composite boards for foundation walls
SOPREMA
✓ Certified Installer

Sheet Membrane Specialists

  • COLPHENE BSW — Self-adhering below-grade sheet membrane
  • COLPHENE 3000 — Dual-compound self-adhering membrane for split-slab
  • ALSAN RS — PMMA liquid-applied waterproofing (ultra-fast cure)
  • SOPRALENE FLAM — Torch-applied modified bitumen for horizontal applications
  • SOPREMA Drainage Composites — Foundation protection and drainage

Which System for Which Application?

Every application has an optimal system. Here's what we recommend and why.

ApplicationSika SystemTremco SystemSoprema System
Blindside / Pre-AppliedSikaProof A+ ★COLPHENE BSW
Foundation Walls (Positive)SikalasticTREMproof 250GC ★COLPHENE 3000
Split-Slab / HorizontalSikalasticTREMproof 260COLPHENE 3000 ★
Traffic-Bearing / PlazaSikalastic DeckProVulkem 350 ★ALSAN RS
Crack Injection (Remedial)Sika Injection ★
Elevator Pits (New)SikaProof A+TREMproof 250GCCOLPHENE BSW
Elevator Pits (Remedial)Injection + Crystalline ★TREMproof negative-side

★ = Ocean Group's recommended first-choice system for this application

Below-Grade Waterproofing Scopes We Handle

🏗️

Foundation Wall Waterproofing

Continuous barrier from footing to grade. Fluid-applied or sheet membrane systems with drainage board and protection course. Penetration detailing at every pipe, conduit, and tie-hole.

Sika · Tremco · Soprema
🅿️

Parking Garage Waterproofing

Traffic-bearing membrane systems that protect the structural slab while handling vehicular loads. Split-slab waterproofing, expansion joint treatment, and concrete crack injection.

Vulkem 350/351 · Sikalastic · ALSAN RS
🛗

Elevator Pit Waterproofing

New construction and remedial solutions. Crystalline waterproofing, negative-side coatings, curtain grouting with polyurethane injection resins, and sump pump integration.

SikaProof A+ · Sika Injection · TREMproof
🌿

Planter Box & Amenity Waterproofing

Resort pools over parking garages. Rooftop planters over occupied space. Multi-layer assemblies with root barriers, drainage composites, and traffic coatings.

COLPHENE · Vulkem · Sikalastic
🔧

Tunnel & Utility Vault Waterproofing

Blindside and positive-side systems for structures that can't be accessed after backfill. Designed for continuous hydrostatic pressure in Florida's high water table.

SikaProof A+ · COLPHENE BSW
💉

Remedial Injection & Repair

Active leak repair without excavation. Polyurethane and epoxy crack injection, curtain grouting, negative-side cementitious coatings, and crystalline waterproofing.

Sika Injection Systems

Not Just a Roofer Who "Also Does" Waterproofing

We have dedicated waterproofing crews, manufacturer certifications, and the equipment to handle the hardest scopes in the state.

3

Manufacturer Certifications

Sika, Tremco, and Soprema. Not one — all three. Your architect specs it, we install it.

NDL

Warranty Capability

No Dollar Limit manufacturer warranties available through our certified applicator status.

2x

Dual Licensed

CCC1332364 (Roofing) + CGC1504639 (General Contractor). Both. Not just one.

FL

Florida Expertise

Limestone substrate, 2-4 ft water table, hurricane rain loads. We know what fails here and why.

48hr

Bid Turnaround

Below-grade is on the critical path. We don't sit on bid requests. 48 hours or less.

90%

Detail Obsession

90% of waterproofing failures happen at transitions, penetrations, and terminations. That's where we focus.

Below-Grade Waterproofing Questions

What's the difference between Sika, Tremco, and Soprema systems?

Each manufacturer has strengths. Sika leads in blindside/pre-applied (SikaProof A+) and injection systems. Tremco dominates fluid-applied foundation walls (TREMproof 250GC) and traffic coatings (Vulkem). Soprema excels in sheet membranes (COLPHENE) and fast-cure liquid systems (ALSAN RS). We install all three and recommend the best system for your specific application — not the one with the highest margin.

Why do manufacturer certifications matter?

Manufacturer warranties — especially NDL (No Dollar Limit) warranties — are only available when the system is installed by a certified applicator. If a non-certified contractor installs Sika or Tremco products, you get zero manufacturer warranty. The product warranty is void. Our certifications protect your building owner's investment.

What is blindside waterproofing?

Blindside (pre-applied) waterproofing is installed against the earth retention system (sheet piling, soldier piles, shotcrete) BEFORE the structural concrete is poured. The concrete bonds directly to the membrane. It's used when there's zero access to the exterior of the foundation wall after construction — common in urban and high-density Florida projects.

How much does below-grade waterproofing cost?

Foundation walls: $8-$25/SF depending on system. Parking garage traffic membranes: $12-$35/SF. Elevator pits: $5,000-$25,000 per pit depending on size and whether it's new or remedial. Contact us for a project-specific quote.

Can you fix a building that's already leaking below grade?

Yes. Remedial waterproofing is a core service. We use negative-side cementitious coatings, polyurethane injection, curtain grouting, and crystalline waterproofing to stop active leaks without excavation when possible. For severe cases, we coordinate excavation and positive-side membrane application.

Scope Your Below-Grade Waterproofing Project

Sika. Tremco. Soprema. Certified applicator for all three. Bid turnaround in 48 hours.

Call 786-696-4829 Email [email protected]
786-696-4829