The Hat Works in Kitchens Now.
For over 30 years, the One Hat name has meant one thing in San Diego: everything handled under one hat. One Hat Construction builds. One Hat Engineering designs. One Hat Plumbing keeps the water running. And now — OH Grease Trap Pumping keeps Southern California's commercial kitchens pumped, flowing, and compliant.
We started OH because we kept seeing the same broken setup in every restaurant we worked in: a grease hauler who disappears after pumping, a plumber who won't go near the trap, a hood company on a third schedule, and an owner stuck in the middle holding four invoices and all of the liability. Nobody owned the whole problem.
So we built the company that does. Grease trap and interceptor service, licensed restaurant plumbing, hood and exhaust cleaning, oil recycling, and compliance paperwork — one crew, one schedule, one number: (888) 557-7997.
What we stand on
Show up when we said
Kitchens run on prep schedules; so do we. Early mornings, overnights, off-peak — your hours, not ours.
Document everything
Photos before and after, manifests filed every visit, records kept for years. If it isn't documented, it didn't happen — inspectors agree.
Tell the truth about money
Published pricing, quotes confirmed before work starts, and honest advice even when it means selling you less.
Fix the real problem
If your trap keeps failing because of a broken baffle, pumping it monthly forever is a subscription to a problem. We're licensed to actually fix it — so we do.
CA Licensed & Insured — Lic. #1061807 · Registered grease transport & manifest documentation on every service · Part of the One Hat family of companies, San Diego.