Deck Waterproofing
Durable waterproof coatings that protect walking decks, roof decks, and balconies from water intrusion.
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We handle building permits and city inspections for waterproofing and repair projects across Los Angeles & Orange County, keeping your job compliant from submittal to final sign-off.
Waterproofing and structural repairs often require permits, and every city runs its own Building & Safety process with its own forms, fees, and inspectors. Missed paperwork or a failed inspection can stall a project for weeks and leave owners exposed with non-compliant work.
Capital Deck & Stair has experience with Building & Safety departments in every city we serve. As the licensed contractor (#1005325), we prepare the paperwork, pull the permit, schedule the inspections, and see the job through to final sign-off.
Notice any of these? Call 818-697-6334 for a free on-site evaluation.
We assess the substrate, drainage, and existing coating to pinpoint the real source of water intrusion, not just the symptom.
We remove failed coatings, repair cracks and dry rot, and rebuild a sound, stable substrate before anything else.
We install the right coating system for your surface, traffic, and exposure, applied to code by experienced crews.
We review the finished work with you and back most projects with our industry-leading 8-year warranty.
Decades of waterproofing across LA & OC.
Guaranteed workmanship that lasts.
Fully licensed & insured.
Fast, local, no-obligation quotes.
Durable waterproof coatings that protect walking decks, roof decks, and balconies from water intrusion.
Learn more →Code-compliant balcony systems that stop leaks, dry rot, and structural damage before they start.
Learn more →Slip-resistant, weatherproof coatings for exterior stairs and landings that last for years. We also design and fabricate custom iron based precast staircases for minimal maintenance.
Learn more →Expert magnesite repair and replacement to restore worn, cracked, and failing deck substrates.
Learn more →Waterproofing for apartments, HOAs, and commercial properties, built to pass inspection and last.
Learn more →We do. As the licensed contractor (#1005325) we prepare the application, pull the permit, and schedule the city inspections for the work we perform, in every city we serve.
A professionally installed waterproofing system typically lasts many years. Capital Deck & Stair backs most projects with an 8-year warranty on workmanship, and proper maintenance can extend the life well beyond that.
Cost depends on the surface size, condition, and the coating system required. We provide a clear, itemized quote after a free on-site inspection, with no obligation and no pressure.
Most residential decks, balconies, and stairs take about a week from start to finish, depending on prep, repairs, and weather. We give you a firm timeline before work begins.
Yes. We handle residential, HOA, and commercial waterproofing across Los Angeles and Orange County, and we are licensed (#1005325) and insured for projects of every size.
Protect your property today, talk to a local waterproofing expert.