Lic. #882415 · SD & OC

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Division 07 · Waterproofing Specialists

Engineered Protection for Critical Infrastructure

The leading choice for subterranean waterproofing and concrete restoration in Southern California. We deliver high-performance membranes and structural repairs that stand the test of time.

Technician applying waterproof membrane to a concrete foundation

Trusted Partner

"Optimal Waterproofing consistently delivers the highest standard of technical precision on our multi-unit residential projects. Their 20-year track record is evident in every detail."

Marcus Chen

Senior Project Manager

Division 07

Subterranean & Above-Grade Waterproofing

From deep-foundation blindside systems to intricate balcony membranes, we apply high-solids fluid-applied and sheet systems from industry-leading manufacturers to ensure a lifetime seal.

  • Fluid-Applied Membranes
  • Hot Rubberized Asphalt
  • Sheet Waterproofing
  • Bentonite Systems
  • Below-Grade Foundations
  • Plaza Decks & Balconies
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Foundation excavation with waterproofing membrane installation
Commercial parking garage with fresh epoxy floor coating
Division 03

Concrete Restoration & Epoxy Coatings

Structural repair and aesthetic protection for parking structures and industrial floors. We handle spall repair, carbon fiber reinforcement, and high-performance traffic coatings.

Performance Specs

Compressive Strength8,500 PSI
Chemical ResistanceGrade A (ASTM D1308)
Cure Time24–48 Hours
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About Optimal

Two decades of structural integrity, delivered on every job site.

Optimal Waterproofing & Concrete Restoration is San Diego's and Orange County's premier waterproof coating company, with over 20 years of experience in product applications ranging from subterranean and above-grade waterproofing to deck repairs and decorative coatings.

We pair material science with disciplined field execution to protect the assets our clients depend on. Credit card payments are accepted for all project sizes.

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20+

Years Experience

1.5k

Projects Completed

100%

Warranty Fulfillment

SD/OC

Locally Operated

20+

Years Experience

1,500+

Projects Completed

100%

Warranty Fulfillment

Licensed

C-33, C-61 / D-12

Ready for a Technical Consultation?

Our estimators and field technicians are available for site inspections and architectural plan reviews across Southern California. Reach out and we'll respond within one business day.