Commercial Plumbing for Businesses Across Greater Philadelphia
Downtime costs you money and customers. Duncan Family Plumbing keeps restaurants, offices, retail, and multi-unit buildings running with fast repairs, code compliance, and scheduled maintenance.

Commercial plumbing keeps businesses compliant and open — grease traps, backflow testing, commercial water heaters, boilers, high-capacity drains, and restroom fixtures. Duncan Family Plumbing services restaurants, offices, retail, hotels, and apartment buildings across Bucks County, Montgomery County, and Northeast Philadelphia, 24/7, with upfront pricing.
A Plumbing Failure Can Shut Your Business Down
A failed grease trap, an overdue backflow test, or a clogged main can mean a health-code violation, a forced closure, and lost revenue — often on your busiest day.
What you’re dealing with
- ✓Grease traps and interceptors backing up the kitchen
- ✓Overdue or failed backflow tests risking compliance
- ✓High-capacity drains clogging under heavy daily use
- ✓Water heater or boiler failures stopping operations
How we solve it
- ✓Rapid response to keep you open and compliant
- ✓Certified backflow testing and documentation
- ✓Scheduled preventive maintenance that prevents surprises
- ✓Upfront pricing and clean, minimally disruptive work
Commercial Plumbing Services We Provide
From a single storefront to a multi-building property, we keep the water moving.
Office Building Plumbing
Restaurant Plumbing
Retail Plumbing Systems
Commercial Water Heater
Boiler Installation Maintenance
Grease Trap Cleaning
Backflow Testing & Compliance
Restroom Fixture Installation
High Capacity Drain Cleaning
Preventive Maintenance Contracts
ADA Compliance Plumbing
Multi-Unit & Apartment Plumbing
Hotel Plumbing Services
Fire Sprinkler Plumbing
Commercial Sewer Septic
Water Efficiency Retrofitting
Keep Your Business Running — Call Now
Fast, compliant commercial plumbing with upfront pricing, 24/7 across Bucks and Montgomery County.
How We Work With Your Business
Assess and schedule
We learn your operation, hours, and pressure points, then plan work around your busiest times.
Diagnose and quote
We pinpoint the issue and give a clear, upfront price your manager can approve fast.
Service with minimal disruption
We work efficiently and cleanly so your doors stay open whenever possible.
Document and maintain
We provide compliance documentation and set up preventive maintenance so problems don’t recur.
Why Local Businesses Rely on Us
24/7 response
Emergencies handled any hour to limit downtime.
Compliance-ready
Backflow testing and code work documented properly.
Maintenance plans
Scheduled service that prevents costly failures.
Upfront pricing
Clear quotes with no surprise invoices.
Call Us When Your Business Sees
- ✓Slow or backing-up floor and kitchen drains
- ✓A backflow test notice or failed inspection
- ✓Grease trap odors or overflow
- ✓Inconsistent hot water or boiler trouble
- ✓Recurring clogs under heavy daily use
Serving Bucks County, Montgomery County & Northeast Philadelphia
Based in Newtown, PA, we cover the whole region — from Yardley and Doylestown to Abington, Willow Grove, and the Northeast Philadelphia neighborhoods.
Commercial Plumbing Questions, Answered
Can you service my restaurant without closing us down?
Do you do certified backflow testing?
What does commercial plumbing service cost?
Do you offer preventive maintenance contracts?
Can you handle multi-unit and apartment buildings?
More Ways Duncan Family Plumbing Can Help
Schedule Commercial Plumbing Service
Repairs, backflow testing, or a maintenance plan — one call gets it handled. Talk to Duncan Family Plumbing today.