Commercial
Commercial sump pump installation in LA and the South Bay.
Sump systems for commercial basements, elevator pits, and below-grade spaces in LA and the South Bay — sized, installed, and maintained by one licensed crew.
Why sump pump installation/service
Below-grade water in commercial buildings
Commercial sump work in LA and the South Bay is mostly below-grade: basement storage and mechanical rooms, elevator pits that hold water against their inspection schedule, and tenant spaces a few steps down from the sidewalk. We size the pump and basin to the real inflow, wire it on a dedicated circuit with an alarm, and route the discharge to a point the city will accept — then put the system on a service schedule so it gets tested before the rainy season instead of during it.
Built for owners, not just buildings
Most of this work comes through owners and property managers we already serve. That relationship changes the job: we know the building's panel capacity, its drainage history, and which tenant calls first when the carpet is wet. As a licensed A/B general contractor we can also correct the grading, waterproofing, or structural condition feeding the pit — a plumber alone can't.
Parking structures
Stormwater pumps in parking structures and garages are their own discipline — duty/standby pairs, control panels, and code-driven capacity. That work lives with our parking team: see parking structure sump pump service.
Why DECOMA
One license, three disciplines, forty years.
Family-run South Bay general contractor since 1978. We design, build, and manage — under one license — so the team you start with is the team that hands you keys and the team that answers the phone when something needs fixing in year ten.
- Years building
- 48+
- Projects delivered
- 3,000+
- Repeat clients
- 300+
- CSLB Class
- A/B
Service areas
Sump pump installation/service across the South Bay.
Born in Harbor City, working across LA County since 1978. Same crew, same license number, same shop at 25941 Frampton Ave, Harbor City.
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One business day for a scope, timeline, and budget range. CSLB #375508 A/B.