Deck & Balcony Waterproofing
Protect elevated outdoor living spaces from leaks, UV exposure, wear, and hidden damage.
Licensed C-39 Waterproofing Contractor
Protect the Deck, Balcony, or Structure You Rely on Every Day
SPL Waterproofing helps homeowners, property managers, and builders protect decks, balconies, roof decks, foundations, and commercial properties across Los Angeles and Orange County with systems installed the right way.
Deck & Balcony Waterproofing
Roof Deck Systems
Foundations & Below-Grade
Commercial & Multi-Family
Licensed • Bonded • Insured
Why clients call SPL
Core Waterproofing Services
Choose the service path that matches your project. Each page should speak directly to the right audience and intent.
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Roof Deck Waterproofing
Install systems that help roof decks handle sun, standing water, and outdoor use.
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Foundation & Below-Grade Waterproofing
Reduce moisture intrusion and protect foundations, retaining walls, and lower structures.
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Commercial & Apartment Waterproofing
Support property managers and owners with systems for multi-family and commercial buildings.
Water Damage Usually Starts Before People Notice It
A good-looking surface can hide weak seams, failed flashing, or moisture below the finish. Once water gets into the system, repairs become more expensive and more disruptive.
Leaks at transitions and penetrations
Door thresholds, railings, corners, and seams are common failure points.
UV and coastal exposure
Sun, salt air, and weather cycles can age finishes faster than expected.
Hidden substrate deterioration
Moisture can quietly damage the structure below the visible surface.
How We Approach a Project
A strong waterproofing result comes from discipline, not shortcuts.
01
Evaluate the condition
We assess the surface, details, access, and likely failure points.
02
Explain the scope
You get a clear breakdown of what needs repair, replacement, or preparation.
03
Install in phases
We follow the proper sequence for prep, membrane, reinforcement, and finish.
04
Review and maintain
We explain care, maintenance, and what to watch for over time.
Why Clients Choose SPL
Professional waterproofing is part technical work and part trust. Clients want honesty, documentation, and a contractor who stands behind the process.
Licensed, Bonded & Insured
Professional service from a California C-39 contractor.
Detailed Scopes
We explain materials, phases, exclusions, and pricing clearly.
Manufacturer-Based Systems
We use system-based approaches instead of guessing with mismatched products.
Built for Real Clients
We work with homeowners, property managers, architects, and builders.
Service Locations
Commercial Waterproofing in Los Angeles & Orange County
We service commercial office parks, industrial complexes, retail centers, and multi-family communities across Southern California.
Orange County
Irvine Costa Mesa Newport Beach Anaheim Santa Ana Dana Point Huntington Beach Laguna Beach San Clemente
Los Angeles County
Downtown Los Angeles Long Beach Pasadena Venice Santa Monica Malibu Pacific Palisades Manhattan Beach Beverly Hills
Trusted Products and Systems
We work with manufacturers and product systems suited to the demands of Southern California properties.
Got Questions?
Frequently Asked Questions
Everything property managers and owners need to know about our apartment complex waterproofing process.
Have a unique property situation?
We evaluate complex stairwell layouts, multi-building sites, and active leak emergencies.
Talk to a SpecialistWhat types of waterproofing projects do you perform?
We handle decks, balconies, roof decks, foundations, below-grade structures, commercial buildings, apartment complexes, and HOA projects.
Where do you provide service?
We serve Los Angeles County, Orange County, and surrounding Southern California communities, including many coastal cities.
Are you licensed and insured?
Yes. SPL Waterproofing is a California C-39 licensed contractor, and we also carry the appropriate insurance and bonding for our work.
Do you provide detailed estimates?
Yes. We provide scopes of work that explain materials, phases, and the details involved so clients can understand the project clearly.
Can you help me choose the right system?
Yes. We recommend systems based on the surface, exposure, condition, intended use, and project goals.
Need a Waterproofing Contractor You Can Actually Trust?
If you want a clear scope, honest guidance, and a waterproofing system built for Southern California conditions, contact SPL Waterproofing today.