
COMMERCIAL PLUMBING | FIRE PROTECTION | BACKFLOW PREVENTION
Innovating since 1989
Proudly serving North Central Washington and beyond
Plumbing | Mechanical | Fire Protection
We specialize in commercial plumbing systems, fire protection systems, and backflow prevention.
We stand by our work
Our team has provided quality work for over 30 years

COMMERCIAL PLUMBING
Our experienced commercial journeymen, each with years of experience, lead our quality team of plumbers. They handle a wide range of commercial plumbing needs, including design, groundworks, rough-in, and final trim-out. We make sure our team is always up-to-date with the latest codes, industry standards, and training, so you can rest assured that your project is in capable hands.
Design
Weld fabrication
Pipe threading through 2”
Natural gas, hydraulic, and air piping
Process water piping
Light backhoe and dump truck services
Boilers to include water heaters
Hydronic heating design and installation
Roll grooving through 12”
Unit heaters
Pump system
DPA Drencher Repair
Fumigation Chamber Installation
FIRE PROTECTION
Plumbco employs multiple NICET (National Institute for Certification in Engineering Technologies) and Washington State certification holders, both in Water-Based Systems Layout and Inspection and Testing of Water-Based Systems, as well as multiple Journey-Level fire sprinkler fitters.
Design
Maintenance
Inspection
Testing
Fire Pump flow testing
Fabrication
Installation
Grooved and threaded piping
Repair
BACKFLOW PREVENTION
Plumbco can help protect the quality and safety of the drinking water in North-Central Washington. We proudly do this through our backflow prevention program, and we do it well. We’ve got a well-trained team. That team is made up of three certified Washington State Backflow Assembly Testers.
Installation
Testing
Maintenance
Repair
Trusted by the best


















229 East Peters Street
Wenatchee, WA 98801
Hours
Monday–Friday
8am–5pm
Saturday-Sunday (Closed)
Phone
(509) 662-0180
(800) 838-0810
General Contractor License PLUMBI*055BF
Plumbing Contractor License PLUMBI*0794MA