Building-Grade Plumbing for Class A Properties.
Riser systems, mechanical rooms, restroom cores, backflow compliance, and tenant improvement plumbing handled by a single C-36 licensed contractor with a 29-year track record on corporate campuses and multi-story office buildings. We work the way your building engineering team operates — with PO-referenced dispatch, documented field work, after-hours access, and reporting that closes the loop for your asset manager.
Schedule a Building Assessment
Tell us about your property and we'll be in touch.
Office Buildings Run on Systems Most Plumbers Don't Service.
Multi-story risers, mechanical room water heaters, restroom cores serving hundreds of occupants, backflow assemblies protecting municipal supply, and tenant buildout plumbing that has to meet Class A standards — that's a different scope than clearing a drain in a strip mall.
We've been the plumbing contractor for corporate campuses and office buildings since 1997. Our clients include Fortune 500 facilities teams, global REITs, and property management firms that manage Class A portfolios across Southern California.
One contractor. Building systems, tenant spaces, and common areas. Your building engineer makes one call, and we handle the dispatch, the access coordination, and the documentation your asset manager expects.
Our team services corporate campuses and office buildings across Orange County, Los Angeles, and greater Southern California.
Built on 29 Years of Building-Grade Work.
Completed and documented across office buildings, corporate campuses, and multi-tenant commercial properties. 99.8% completion rate with full field documentation on every job.
Equity Office Properties, Hines, and other institutional office owners trust us with their Southern California portfolios. That's not maintenance calls — that's building systems work at scale.
Commercial plumbing is all we've done since 1997. No residential side jobs, no divided focus. Every system, process, and technician is built for commercial properties.
The Plumbing Services Office Properties Need Most.
Office buildings touch more plumbing disciplines than they appear to — risers, mechanical rooms, restroom cores, tenant spaces, and common areas. We handle all of it under one contract.
Drain & Sewer Service
Restroom core drains, kitchen drains, mainline sewer, and storm lines. Cabling, hydro-jetting, and camera inspection for multi-story buildings with shared waste stacks and long lateral runs.
Backflow Testing & Repair
Annual compliance testing for domestic, irrigation, and fire suppression backflow devices. We test all assemblies on the property, file with the county, and deliver a compliance report your engineering team can act on.
Water Heater & Boiler
Mechanical room water heaters, point-of-use units in tenant breakrooms, and recirculation systems that serve multi-story buildings. Repair, replacement, and scheduled maintenance with code-compliant installation.
Water Leak Detection
Non-invasive electronic detection for supply lines, risers, and concealed piping. In a multi-story building, a leak on one floor can damage three. We locate the source before we open the wall.
Gas Line Service
Gas line repair, leak detection, and pressure testing for building heating systems, kitchen equipment in tenant cafe spaces, and rooftop mechanical units. Permitted work with fire marshal coordination.
Emergency Response
24/7 dispatch with a 2-hour P1 response target. Flooding from a riser failure, sewer backup in a lobby restroom, gas leak in a mechanical room — the problems that can't wait until Monday.
The Office Property Types We Work With.
Corporate Campuses
Multi-building properties with centralized mechanical systems, campus-wide backflow devices, shared infrastructure, and facilities management teams that need one plumbing vendor across the entire site. We dispatch to the building, not just the address.
Class A Office & High-Rise
Multi-story risers, mechanical room water heaters, lobby and common-area restrooms, and tenant suites with individual plumbing demands. We coordinate with your building engineer and work around occupant schedules.
Multi-Tenant Office
Shared waste stacks, common-area restrooms, individual tenant breakrooms and kitchenettes, and backflow devices that serve the building. One vendor for landlord scope and tenant requests — with documentation that separates the two.
Medical & Professional Office
Specialized drainage for dental and medical suites, ADA-compliant fixture upgrades, and hot water systems that serve patient-facing spaces. We work around practice hours and patient schedules.
What Your Building Engineering Team Needs From a Plumber.
Building Systems We Service
Vertical supply lines feeding restrooms, breakrooms, and tenant spaces on every floor. Leak detection, valve replacement, and riser repair without shutting down the entire building.
Shared drain stacks serving multiple floors and tenant spaces. Camera inspection, cleaning, and repair for cast iron and PVC systems — including buildings with aging infrastructure.
Central water heaters, recirculation pumps, pressure-reducing valves, and mixing valves that serve the entire building. Repair, replacement, and preventive maintenance on a schedule your engineering team sets.
High-traffic restrooms with commercial flush valves, sensor fixtures, and floor drains that see more use than residential plumbing sees in a year. We service, repair, and replace at the component level.
What We Deliver
Field reports, invoices, and completion summaries tied to your purchase order number and property address. Clean records for your asset manager and your ownership group.
We coordinate with your building engineer, your security team, and your tenants. Alarm codes, escort requirements, freight elevator access — we handle the logistics.
Scheduled drain maintenance, water heater inspections, backflow testing, and system checks on a calendar your engineering team approves. We manage the schedule and report the findings.
Breakroom buildouts, restroom additions, kitchenette installs, and suite reconfigurations. Rough-in through finish with permit coordination and final inspection.
Need a Plumbing Vendor Your Engineering Team Can Rely On?
We'll assess your building's plumbing infrastructure, review your backflow compliance, and identify deferred maintenance — with a written report your team can act on immediately.
The Contractor Building Engineers Keep on Speed Dial.
We manage a Class A office portfolio across Irvine and Newport Beach — six buildings, all multi-tenant. California Coast Plumbers handles the building systems, tenant requests, and backflow testing across the entire portfolio. One vendor, one rate sheet. The documentation is detailed enough that our institutional ownership group has never pushed back on a plumbing invoice.
Building Engineer • Class A Office Portfolio, South OC
We had a riser leak on the fourth floor of a five-story building during business hours. CCP had a tech on-site within 90 minutes, isolated the leak without shutting down water to the entire building, and completed the repair the same day. That's the kind of response and problem-solving you need in a Class A building — you can't have tenants without water for two days.
Facilities Manager • Corporate Campus, Orange County
Tenant turnover on our campus means constant buildout work — new breakrooms, restroom reconfigurations, kitchenette installs. CCP handles the plumbing for every TI project and then rolls into the preventive maintenance program once the tenant moves in. It keeps our vendor list short and the quality consistent across buildings.
Director of Facilities • Multi-Building Corporate Campus
Add Us to Your Building's Vendor List.
Whether you manage a single office building or a campus of ten, we operate the same way: documented field work, PO-referenced invoicing, after-hours coordination, and a named contact for your account.
Schedule a Building Assessment
We'll review your backflow compliance and identify deferred maintenance — written report included.
Where We Serve
Serving Office Properties Across Southern California.
We dispatch from Anaheim and service corporate campuses and office buildings throughout Orange County, Los Angeles, Riverside, San Bernardino, and San Diego Counties.