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Trusted Plumbing Products Manufacturer in Portland
At Precision Plumbing Products, we are dedicated to delivering durable, high-quality plumbing solutions to professionals across the industry. Since our founding in the early 1960s, we have maintained a commitment to excellence through product innovation, customer-centric service, and a focus on sustainable manufacturing practices. Our ISO 9001 and ISO 14001 certifications reflect our rigorous quality management and environmental stewardship. By controlling every stage of production in our Portland, Oregon facility, we ensure precision in engineering, reliability in performance, and consistency in delivery. Our team of experienced professionals leverages advanced automation and ongoing education to meet evolving industry demands while maintaining low employee turnover, which enhances productivity and expertise.

From trap primers to water distribution systems, our products are designed to address real-world challenges with functionality and durability. Our investment in cutting-edge technology and in-house quality control guarantees that every component meets exacting standards before shipment. This dedication to excellence has solidified our reputation as a trusted partner for architects, engineers, and contractors seeking dependable solutions. Through four decades of family leadership and continuous improvement, we remain committed to advancing plumbing innovation while upholding the values that have defined our legacy.
Services
Trap Primers Water Hammer Arrestors Access Doors Thermostatic Valves Water Distribution Systems
Highlights and features
  • We offer 60+ years of specialized expertise in plumbing product innovation.
  • Our ISO 9001 and ISO 14001 certifications ensure rigorous quality and environmental standards.
  • We maintain full control over manufacturing processes at our Portland facility.
  • Our low employee turnover guarantees experienced, highly trained production teams.
  • We provide detailed Revit libraries and technical resources for seamless project integration.
Associations and certifications
  • ISO 9001
  • ISO 14001
Services
Trap Primers
Our trap primers prevent sewer gas infiltration in floor drains through precision-engineered designs. Available in pressure drop, manual, flow-activated, and electronic models, these durable components ensure code compliance and long-term functionality. Compatible with copper, CPVC, and PEX systems, they provide reliable solutions for residential and commercial applications.
Water Hammer Arrestors
Water hammer arrestors eliminate pipe noise and vibration caused by sudden pressure changes. Our range includes standard, mini-max, and specialty fluid arrestors with threaded, sweat, and PEX connections. Constructed from brass, stainless steel, and CPVC materials, these devices ensure system longevity and noise reduction in plumbing installations.
Thermostatic Valves
Thermostatic balancing valves maintain safe water temperatures in shower and lavatory systems. Featuring pressure compensation and high-limit stops, these valves prevent scalding while ensuring consistent performance. Designed for integration with various piping materials, they meet ASSE 1016 and CSA B125 standards for safety and reliability.
Access Doors
Access doors provide concealed entry points for plumbing system maintenance. Available in prime coat and stainless steel finishes, these fire-rated and drywall-compatible panels ensure easy access to valves and pipes without compromising aesthetics or structural integrity in commercial and residential buildings.
Water Distribution Systems
Water distribution systems deliver efficient fluid routing through patented copper and PVC manifold designs. Our modular configurations support customized layouts for commercial plumbing projects, ensuring optimal flow rates and pressure balance while simplifying installation and maintenance processes for contractors.
People
Jack Vilendre
Former President
Jack Vilendre served as President of Precision Plumbing Products from 2001 to 2019, guiding the company through significant product expansion and market growth while maintaining its family-owned values.
Alison Amundson
President
Alison Amundson became President in 2019 after 17 years of progressive leadership roles at Precision Plumbing Products, focusing on operational efficiency and strategic development to maintain industry competitiveness.
Questions
What industries use Precision Plumbing Products?
Our products serve commercial construction, residential plumbing, and industrial applications requiring reliable water management solutions.
Are your products compliant with plumbing codes?
All products meet or exceed ASME, ASTM, and local plumbing code requirements for safety and performance.
Do you offer technical support for product installation?
Yes, we provide detailed submittals, Revit files, and technical assistance to ensure proper product integration.
What materials are used in your plumbing components?
We manufacture products using brass, stainless steel, copper, CPVC, and PEX materials for durability and system compatibility.
How do you ensure product quality?
Our ISO 9001-certified quality management system includes in-house testing, automated production monitoring, and 100% product inspection prior to shipment.
Where are your products manufactured?
All Precision Plumbing Products are designed and manufactured at our Portland, Oregon facility to maintain strict quality control.