Commercial Plumbing
Commercial plumbing built for businesses that can't afford downtime — restaurants, retail, multi-family, light industrial — handled by licensed crews on your schedule.
Trusted Commercial Plumbing Across Southern California
Downtime is the real cost of a commercial plumbing problem — closed restaurants, displaced tenants, failed inspections. Reliable Pros Services runs commercial plumbing across Los Angeles, Orange, Riverside, and San Bernardino counties the way a business actually needs it: scheduled work outside operating hours, signed manifests for compliance, and licensed crews carrying liability the size of your property.
We work with restaurant operators, retail and office property managers, HOA boards, and light-industrial facilities. The mix of work is broad — scheduled grease-line jetting and trap service, backflow recertification, water heater banks, repipes for tenant improvements, and emergency main-line response when something fails mid-service.
Most commercial clients move to a preventive plan after the first emergency: a single monthly cadence that catches grease lines, backflow recerts, and water heater service before they become a closed restaurant on a Friday night. Tell us what your property runs on and we’ll size a plan around it.
The Full Range of Commercial Plumbing, Under One Roof
Targeted solutions our licensed Southern California pros handle every day — every job done right the first time, with up-front pricing and a written warranty.
Sewer & Drain Services for Businesses
Scheduled jetting, grease-trap maintenance, camera surveys, and main-line repair for restaurants, food service, multi-tenant retail, and HOA properties.
Backflow Testing & Certification
Annual RPZ, double-check, and PVB testing by certified backflow assemblers. We file the certification directly with the water purveyor and track next-year deadlines.
Tenant Improvement & Repipes
Repipes, water heater banks, ADA fixture upgrades, and TI build-outs coordinated with your GC and the local building department. Permits and inspection sign-off handled.
Commercial Plumbing Services
Day-to-day repairs, fixture replacements, scheduled preventive maintenance, and after-hours emergency response sized for businesses that can't afford to close.
Commercial Plumbing — Answered
What homeowners across LA, Orange, Riverside, and San Bernardino counties ask us most often. Have another question? Call or write — a real human always answers.
Can you work outside our business hours so we don't have to close?
Yes — and most of the time we recommend it. Restaurants, retail, and offices typically get after-hours or pre-open dispatch for any work that disrupts water service, fixtures, or floor space. We staff overnight crews and bring temporary fixtures (portable handwash stations, for example) when health-department compliance during a multi-day job is at stake. The schedule is built around your operating hours, not ours.
Do you handle grease traps and food-service compliance?
Yes. We service grease interceptors and traps on the schedule your jurisdiction requires — typically every 30 to 90 days depending on size and use — and our licensed haulers provide signed manifests for every pump-out, ready for your health inspector. We also handle hydro-jetting on grease-line branches that the trap can't fully catch, plus repair and replacement when an aging interceptor starts failing inspection.
Are your plumbers licensed and insured for commercial work?
Yes — fully licensed (C-36 plumbing) and carrying general liability and workers' comp policies sized for commercial projects. We provide certificates of insurance naming your property management or landlord as additional insured at no charge before the first visit. For tenant improvement work, we'll coordinate with your GC, architect, and the local building department as required.
Do you do backflow testing and certification?
Yes. Our certified backflow testers handle annual testing, repair, and replacement of RPZ, double-check, and PVB assemblies, and we file the certification directly with the local water purveyor. We also install new backflow assemblies for tenant improvements, irrigation systems, and food-service equipment that triggers the requirement. Reminders go on the calendar so you don't miss next year's deadline.
Can you set up scheduled preventive maintenance for our property?
Yes — and most multi-tenant retail, HOA, restaurant, and light-industrial clients save real money by doing this. We design a preventive plan around your fixtures and known failure points: quarterly jetting for grease lines, semi-annual main-line camera, annual water heater service, backflow recerts, grease-trap pumps on the right cadence. You get a single monthly or quarterly invoice and avoid the panic dispatch.