About United Plumbing PDX
Locally owned, master licensed, and committed to honest flat-rate pricing. We deliver dependable plumbing, drain, and emergency services to homeowners across the Portland metropolitan area.
A Personal Approach to Master Plumbing in Oregon
United Plumbing PDX was founded with a clear objective: provide transparent, expert plumbing services without the aggressive sales tactics and hidden dispatch fees typical of national franchises.
Headquartered at 621 SW 5th Ave in Downtown Portland, our team of licensed master plumbers brings over a decade of specialized experience in Pacific Northwest infrastructure. From navigating 1920s vitrified clay sewer laterals and uninsulated crawlspaces to installing state-of-the-art condensing tankless water heaters, we hold ourselves to the highest craftsmanship standards.
We know that calling a plumber often happens during a moment of high stress. That is why our technicians arrive on time, diagnose the root cause thoroughly with fiber-optic cameras, and provide an upfront written estimate before any work begins.
Our Oregon Certifications & Credentials:
- Oregon Construction Contractors Board (CCB) #234891
- Oregon Plumbing Specialty Code (OPSC) Compliant
- Licensed Backflow Prevention Assembly Tester
- NW Natural Gas Certified Pipe Fitter
- EPA Lead-Safe Certified Firm
Request Free Plumbing Estimate
Direct dispatch response in 30–60 minutes. Upfront pricing before any work starts.
Our Core Company Values
The foundational principles that guide every service call we make.
Upfront Flat-Rate Pricing
You will always receive a written estimate detailing the exact project cost before work starts. We never charge surprise travel surcharges or ambiguous hourly dispatch fees.
24/7 Rapid Emergency Response
Plumbing emergencies don't keep business hours. Our on-call technicians respond day and night with fully stocked vans to stop flooding and restore water fast.
100% Workmanship Guarantee
Every repair, repipe, and water heater installation is backed by our master plumbing guarantee and installed strictly to the Oregon Plumbing Specialty Code.
Our Journey & Apprenticeship Standards
Founded in 2012 by Mark Evans, United Plumbing PDX began with a single fully stocked service van and a commitment to transparent flat-rate pricing. Today, our master-level technicians protect historic bungalows, modern high-rises, and commercial facilities throughout Oregon.
Foundation in Historic Neighborhoods
We specialized in diagnosing and retrofitting vintage galvanized and cast-iron plumbing systems across East Portland, Irvington, and Hawthorne without compromising architectural integrity.
Trenchless & Emergency Fleet Expansion
Invested in cutting-edge CIPP epoxy relining, pneumatic pipe bursting, and high-pressure hydro-jetting equipment, establishing our 24/7 central dispatch hub at 621 SW 5th Ave.
Statewide Reach & Heat Pump Leadership
Partnered with Energy Trust of Oregon to accelerate heat pump water heater adoption and expanded dispatch coverage to 67 communities across the Willamette Valley and Northern Oregon Coast.
Trade Leadership Guided by Master Plumber Mark Evans
With more than 22 years of licensed trade experience in Oregon, founder Mark Evans established United Plumbing PDX to prove that high-stakes emergency plumbing and mechanical installations could be delivered with transparent, flat-rate pricing and uncompromising craftsmanship.
Every journeyman and apprentice technician on our staff completes a rigorous 4-year, 8,000-hour state-certified apprenticeship, followed by bi-monthly training in the latest revisions of the Oregon Plumbing Specialty Code (OPSC). We never sub-contract our service calls to third-party handymen.
State licensed, bonded, and backed by $2,000,000 in commercial liability coverage.
Certified containment protocols protecting families in pre-1978 historic homes.
Our Non-Negotiable Customer Standards
- Written Quote Before Work Starts:No turning a wrench until you examine and sign our exact flat-rate written proposal.
- Floor Protection & Spotless Clean-Up:Technicians wear protective shoe booties, lay runner tarps, and leave your work area cleaner than they found it.
- Code-Compliant Municipal Permits:We pull all required City of Portland BDS or county plumbing permits on your behalf.
Inside Our Mobile Workshop & Service Fleet
Every United Plumbing PDX van is a self-contained mobile mechanical workshop carrying over $25,000 in specialized equipment and universal replacement fittings to resolve 94% of plumbing emergencies on the initial trip.
Optical Sewer Cameras
Full-color Ridgid SeeSnake optics with 512 Hz sonde depth locators pinpointing cracks, bellies, and roots up to 200 feet out.
4,000 PSI Hydro-Jetters
Trailer-mounted and portable high-velocity water jetting machines scouring heavy grease and root intrusions out of sewer laterals.
Uponor ProPEX Systems
Commercial battery-hydraulic cold-expansion tooling for fast, leak-free, freeze-resilient PEX-A whole-home repiping.
Acoustic & Thermal Sensors
FLIR thermal imaging and ground microphones to detect hidden slab leaks and in-wall pinholes without destructive demo.
Frequently Asked Questions About Our Company
Who owns and operates United Plumbing PDX?
United Plumbing PDX is locally owned and directed by Mark Evans, an Oregon licensed master plumber with over 22 years of hands-on plumbing and mechanical experience. Mark personally oversees technician training, quality assurance, and complex diagnostic projects throughout the Portland metro area.
What licenses and insurance coverage does United Plumbing PDX maintain?
We operate under Oregon Construction Contractors Board (CCB) license #234891 and state plumbing specialty license #PB-9421. We carry comprehensive commercial general liability coverage of $2,000,000, state bonding, and complete workers' compensation insurance to fully protect our customers and their homes.
How does United Plumbing PDX ensure quality across historic Portland homes?
Vintage Craftsman, Victorian, and mid-century homes in Portland feature delicate architectural details and aging galvanized or cast-iron piping. Our master plumbers utilize non-invasive fiber-optic camera scopes and ultrasonic acoustic listening sensors to pinpoint line failures without indiscriminate drywall or tile damage.
What is your upfront flat-rate pricing guarantee?
Before turning a wrench, our technician conducts a comprehensive on-site diagnosis and provides a firm, itemized written estimate detailing all labor, materials, permits, and warranty terms. If unexpected field complications arise, we never proceed without your explicit written approval.
Our Central Portland Location
Located in the heart of Downtown Portland at 621 SW 5th Ave, our central dispatch coordinates service vans across Multnomah, Washington, and Clackamas counties for rapid response times.
United Plumbing PDX
621 SW 5th Ave
Portland, OR 97204
Phone: (831) 290-4327
Experience the United Plumbing PDX Difference
Call (831) 290-4327 today to discuss your plumbing project or request an upfront estimate.