/ Commercial · Washington, DC

Commercial Plumbing Contractors in Washington, DC

Licensed commercial and industrial plumbing contractors serving Washington offices, hotels, hospitals, restaurants, schools, and manufacturing facilities. Submit an RFQ and we route it to vetted firms with capacity.

Industrial Systems

Capabilities our Washington firms hold

Process piping

Carbon steel, stainless, and copper process loops for manufacturing, lab, and food-grade applications. ASME B31.3 compliant fabrication.

Backflow & cross-connection

RPZ, DCVA, and PVB installation, annual testing, and reporting. Certified testers for DC, MD, and VA water utilities.

Grease interceptors

Sizing, install, and scheduled pumping for restaurants, hospitals, and institutional kitchens. FOG program documentation included.

Medical gas systems

NFPA 99 compliant O2, N2, vacuum, and WAGD piping. Brazed copper with certified verification testing for hospitals and outpatient facilities.

Boiler & hot water loops

Commercial boiler piping, glycol systems, pressure reducing stations, and condensate return. Closed-loop chemistry monitoring.

Industrial drains & jetting

Floor drains, trench drains, oil/water separators, and scheduled hydro-jetting for production lines, parking decks, and loading bays.

Commercial Facilities

Facility types we cover

Office towers

+Stacked riser maintenance
+Tenant fit-out coordination
+After-hours valve work

Hotels & hospitality

+Room-by-room rough-in
+Recirculation pump replacement
+Pool & spa piping

Hospitals & clinics

+Medical gas certification
+Infection-control protocols
+Phased shutdowns

Restaurants & QSR

+Grease trap install + service
+Equipment hookup
+Health-department compliance

Schools & universities

+Summer-break repipes
+Fixture flush programs
+Backflow testing fleets

Warehouses & manufacturing

+Fire suppression coordination
+Process water loops
+Trench drain service

Restaurant Specialty

Restaurant & QSR plumbing in Washington

Restaurants are the most plumbing-intensive commercial buildings per square foot. Grease, high flush volumes, equipment hookups, and health-department deadlines mean a generalist plumber is the wrong call. Our restaurant specialists handle FOG program compliance, equipment hookup, and emergency response with menus, not blueprints, as the priority.

Grease interceptor install & pumping

Sized to fixture-unit count and local FOG ordinance.

Equipment hookups

Dish machines, combis, prep sinks, ice — gas, water, drain.

Floor drains & trench drains

Slope correction, strainer service, scheduled jetting.

Backflow on water service

Required for most jurisdictions; annual testing included.

Hot water sizing

Submit your scope once. We route to firms with relevant licensing, bonding, and current capacity in your facility class. Responses typically within 1–2 business days.