Commercial Plumbing
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Licensed John Plumbing technicians ready around the clock. Flat-rate pricing, workmanship warranty, no overtime charges.
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Full-Service Commercial Plumbing
Downtime Costs Businesses Thousands Per Hour
A burst pipe in a restaurant kitchen, a broken restroom in an office building, or a failed water heater in an apartment complex — commercial plumbing failures don't just inconvenience people, they shut down operations and drain revenue. John Plumbing's commercial division is built for speed, scale, and compliance.
Our commercial team brings licensed plumbers, proper insurance certificates, W-9 documentation, and after-hours availability. We work around your schedule to minimize disruption — not the other way around.
Industries We Serve
Who We Serve
Restaurants & Food Service
Grease trap cleaning, commercial dishwasher lines, floor drain maintenance, health-code compliance, and emergency kitchen plumbing — we keep your doors open.
Office Buildings
Multi-floor restroom retrofits, water pressure balancing, ADA-compliant fixture upgrades, and scheduled maintenance programs for property managers.
Apartment Complexes
Tenant plumbing emergencies, common-area drain lines, water heater replacement, backflow prevention, and bulk-service pricing for property management companies.
Industrial Facilities
Process water lines, eye-wash station plumbing, fire suppression connections, high-volume drain systems, and OSHA-compliant fixture installations.
Our Capabilities
Commercial Plumbing Services
Backflow Prevention Certification
Annual backflow preventer testing and certification required by municipal code for commercial properties. We test, repair, replace, and file the required compliance reports with your water authority — all in one visit.
Grease Trap Cleaning
Restaurant grease traps require cleaning every 1–3 months to prevent health code violations and sewer backups. We pump, inspect, and document grease trap service to keep your kitchen inspection-ready.
Commercial Water Heaters
We install, service, and replace commercial tankless and tank-style water heaters — including high-BTU units for restaurants, multi-unit buildings, and industrial applications. Same-day emergency replacement available.
Water Main Repair
Broken or leaking water mains serving your commercial property require immediate attention to prevent service interruption and water damage. We dispatch crews with trench equipment and full repair capability.
Restroom Retrofits
ADA compliance upgrades, sensor faucet installation, low-flow fixture retrofits, and full commercial restroom remodels. We work overnight or on weekends to avoid disrupting business hours.
W-9 Billing & Documentation
We understand commercial accounts require proper vendor setup. We provide W-9 forms, COI certificates, net-30 invoicing, detailed work orders, and lien waivers — everything your AP department needs.
How We Work
Minimal Disruption. Maximum Reliability.
Site Assessment
A commercial plumbing specialist visits your facility to evaluate existing systems, identify code deficiencies, and document the scope of work. We understand your operational constraints before recommending anything.
Scope & Quote
You receive a detailed written scope of work with line-item pricing, timeline, and crew requirements. For property managers and large accounts, we accommodate purchase order workflows and multi-location billing.
Minimal-Disruption Repair
We schedule work during your off-hours when possible — nights, weekends, or early mornings. Our crews clean up thoroughly and provide completion documentation before your next business day begins.
Common Questions
Commercial Plumbing FAQs
Do you provide W-9 forms and COI certificates for vendor setup?
Yes — we're fully equipped for commercial vendor onboarding. John Plumbing provides:
- W-9 forms for tax and AP setup
- Certificate of Insurance (COI) naming your company as additional insured
- Net-30 invoicing with itemized work orders
- Lien waivers upon payment for projects over $1,000
- Multi-location billing for property management portfolios
Contact our commercial accounts team at (844) 624-1566 to get started.
Do you work nights and weekends to avoid disrupting our business?
Absolutely. We understand that plumbing work during business hours can disrupt customers and staff. John Plumbing offers:
- After-hours and overnight scheduling
- Weekend and holiday availability
- 24/7 emergency response for active failures
- Quiet-work protocols for occupied buildings
When you call, let us know your operating hours and preferred work window — we'll build the schedule around your business, not ours.
How often should commercial grease traps be cleaned?
The general rule is the "25% rule": when the combined depth of floating grease and settled solids reaches 25% of the trap's liquid depth, it must be pumped. In practice, this translates to:
- High-volume restaurants: every 4–6 weeks
- Mid-volume kitchens: every 1–3 months
- Low-volume food service: every 3–6 months
Neglected grease traps cause sewer backups, health code violations, and fines. We offer scheduled service plans so you never miss a cleaning and always have documentation for inspectors.
What is backflow prevention and why does my property need annual certification?
Backflow occurs when contaminated water flows backward into the clean water supply — a serious public health hazard. Commercial properties are required by law to have backflow preventer assemblies installed at their water service connection, and most municipalities require annual testing and certification by a licensed tester.
Our certified testers inspect the device, perform the required pressure differential tests, repair or replace failed components, and file the test report with your water authority. Failure to maintain certification can result in fines or water service shut-off. We'll remind you when your annual test is due.