Waterproof coatings and sealers for patios and outdoor living areas, so water runs off instead of soaking into the structure below.
A patio looks solid, but water works into every unsealed crack and joint, and when the patio sits over living space or against the house, that moisture ends up in walls, framing, and foundations.
We waterproof and seal patios across Los Angeles and Orange County, from coated walking surfaces to sealed concrete, matched to how the space is built and used, most projects backed by our 8-year warranty.
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.
Most projects backed by our warranty.
Fully licensed & insured.
Fast, local, no-obligation quotes.
“I had the pleasure of working with Capital Deck recently and had a great experience. I go off of energy and I knew they would be the right fit once the quote to come out went well. Very knowledgeable, professional, on time daily and took them a reasonable amount of days to finish even due to the holidays. I definitely recommend them.”
“Quick response. Needed complete balcony decking, waterproofing and floor finishing. Very good presentation on the work process. I reached out to several companies, none were as professional as Capital. Reasonable price fantastic work, good communication. Robb showed a sample of the layers, measured and took the photos of the project and came up with an estimate quickly.”
“Had a huge issue in the new year with my balcony leaking. Thankfully, even during holidays they came by quickly to quote and had availability pretty quick. There were heavy rains for a while here, so I’m glad we got it situated and under control. Definitely would recommend. Thanks again and happy new year”
Yes. Patios over living space need a true walking-deck waterproof system, not just a sealer, and that is exactly the kind of system we install.
Yes. We apply penetrating sealers and protective coatings that keep water, stains, and wear out of concrete patios and walkways.
Yes. Where tile is going on top we install an under-tile membrane system (Tremco Vulkem 350NF) so the waterproofing sits below the finish.
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.
Proudly serving Beverly Hills, Studio City, Sherman Oaks, West Hollywood, Van Nuys, Tarzana, Santa Monica, Pasadena, North Hollywood, Hollywood, Glendale, Encino, Calabasas, Burbank, Reseda, Long Beach, Anaheim, Huntington Beach, Santa Ana, San Diego, and communities across Los Angeles & Orange County.
Protect your property, talk to a local waterproofing expert.