Top 10 Commercial Plumber in Portland, OR
The best commercial plumbing companies in Portland, OR for 2026 include Cornel's Plumbing, Heating & Air Conditioning (4.9), Service Plus Plumbing (5), D&F Plumbing, Heating and Cooling (4.5). All handle commercial buildouts, maintenance contracts, grease traps, backflow testing, and emergency service.
D&F Plumbing, Heating and Cooling
Alchemy Plumbing & Drain Cleaning
Henco Plumbing Services
Service Plus Plumbing
Perfect Service Plumbing and Drain Cleaning
Lovett Inc.
Proline Plumbing
Cornel's Plumbing, Heating & Air Conditioning
Black Cat Plumbing
Crown Plumbing
How We Ranked These Portland Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Portland market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How is commercial plumbing different from residential?
Commercial plumbing involves larger pipe sizes, more complex systems, code requirements specific to business types, grease traps, backflow preventers, and often requires specialized licensing.
How much does commercial plumbing cost in Portland?
Commercial plumbing rates in Portland are $100-$200/hour, higher than residential due to complexity. Service contracts for maintenance run $200-$500/month depending on the building size and fixtures.
Do restaurants need special plumbing?
Yes. Restaurants require grease traps (cleaned monthly), separate waste lines, commercial dishwasher connections, floor drains, and regular backflow testing. Health department inspections verify compliance.