Water intrusion is one of the most costly threats to multi-unit properties. ALP Construction offers professional waterproofing services tailored for HOA communities and large residential buildings across the Greater San Francisco and Bay Areas — protecting everything from podium slabs to playgrounds.
What We Offer
Targeted Waterproofing for High-Risk Zones
We identify and treat the most vulnerable areas of your property with proven solutions that extend building life and reduce future repairs.
Podium Slabs & Planters
Sealing and repair solutions to prevent structural leaks at foundational and decorative levels.
Deck-to-Wall Transitions
Critical junctions where decks meet building walls — expertly sealed to block water intrusion and damage.
Balconies, Stairs & Landings
Weatherproofing for elevated surfaces to prevent water pooling, rot, and safety hazards.
Parking Garages
Moisture control for garage floors, ceilings, and expansion joints — keeping both the structure and vehicles protected.
Playgrounds & Recreation Areas
Waterproofing and drainage improvements for outdoor common areas, helping reduce surface wear and slip risk.
Emergency Repair & Water Intrusion Repairs services
As part of ongoing relationships with HOAs and long-term clients, we also handle general interior repair.
Stop Leaks Before They Start
Get expert waterproofing and drainage services that protect your community’s investment.