Underground fire line work is one of our specialties.  We work well with the agencies, municipalities, water districts and fire departments in Marin County and the Bay Area.

If you need a vault for your detector check valve for a 5 year inspection?  We can build your vault.  We get the job done with as little disruption as possible.

We install new above grade detector check valves, we repair leaking fire lines and we perform Forward Flow Tests to satisfy inspecting authorities.  

We work effortlessly with your fire sprinkler contractor and the alarm companies.

Contact us for a free estimate.