Commercial Waterproofing for Patios, Decks & Parking Structures
Water rarely announces itself. By the time a stain shows on a ceiling or a tenant reports a leak, intrusion has usually been moving through the structure for months. ADCO installs complete waterproofing systems, engineered assemblies, not spot repairs, that stop water where it starts and keep it out. For more than 35 years, Southern California property owners and managers have relied on ADCO to protect the surfaces most exposed to daily use: pedestrian decks, balconies, walkways, and parking structures.
Pedestrian Deck & Balcony Waterproofing
Parking Deck & Vehicular Coating Systems
Planter & Plaza Deck Waterproofing
"As a Board Member of a HOA in Marina Del Rey, and on behalf of our Association, we have had only positive feedback from our homeowners since we’ve been with ADCO."
Dee Eckman, Board Member
Villa Napoli Home Owners Association
Pedestrian Deck & Balcony Waterproofing
FOOT TRAFFIC SYSTEMS
Water intrusion at balconies and walkways is one of the most common causes of structural damage in multi-family properties.
We remove failed systems, repair substrate issues, and install manufacturer-approved acrylic and urethane traffic coating systems designed for:
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Daily foot traffic
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UV exposure
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Drainage control
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Long-term membrane performance
Applications include:
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Apartment balconies
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Walkways & corridors
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Stair landings
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Elevated decks
Proper detailing at edges, drains, and penetrations ensures lasting protection — not temporary patchwork.
Parking Deck & Vehicular Coating Systems
VEHICLE TRAFFIC SYSTEMS
Parking decks require waterproofing systems engineered for structural movement, vehicle loads, and chemical exposure.
ADCO installs high-performance vehicular traffic coatings that:
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Protect structural concrete
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Prevent water intrusion to occupied spaces below
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Resist tire wear and automotive fluids
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Extend service life of parking structures
We handle projects ranging from small podium decks to large commercial parking structures.
Planter & Plaza Deck Waterproofing
STRUCTURAL PROTECTION SYSTEMS
Planters and plaza decks are frequent sources of concealed water damage.
Failed membranes often lead to:
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Structural deterioration
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Concrete spalling
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Interior leaks
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Costly repairs
We provide complete system removal and replacement, including:
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Substrate preparation
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Drain detailing
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Root barrier integration
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Manufacturer-certified waterproof assemblies
Certified with leading manufacturers including:
Sika • Westcoat • Mer-Ko • PSI • NeoGard • Tremco
FAQ
How do I know if I need waterproofing or a roof repair?
Water often travels far from where it enters. Our inspection traces intrusion to its actual source — which may be a deck, a planter, or a transition detail rather than the roof field itself.
Can you work while our building stays open?
Yes. We phase deck and parking work to keep access open and coordinate scheduling with your property management team.
Do your waterproofing systems come with a warranty?
Qualifying systems carry a manufacturer warranty. We install to the manufacturer's specification so that coverage stays valid.
What areas do you serve?
Commercial, industrial, and multi-family properties across Southern California, with national reach.
Commercial Projects Delivered with Precision
Why ADCO for Waterproofing
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Certified with leading manufacturers
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Experienced in multi-family and commercial environments
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Detailed surface prep and substrate repair
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Clean, controlled job sites
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Serving Southern California since 1989
We don’t just patch leaks — we install complete systems designed to perform.