Business Details
Trusted Plumbing Contractors Since 1891
Plumbers and Steamfitters Local Union 33 has proudly served the plumbing and mechanical construction industry for over 130 years. Our highly skilled workforce of 1,950 professionals delivers quality craftsmanship across central and western Iowa. We specialize in multi-family housing, commercial and industrial facilities, and process piping projects. Our members provide expertise in plumbing, heating, air conditioning, medical gas systems, and high-purity piping. With a legacy dating back to 1891, we combine tradition with modern technical proficiency.Our union members are trained to complete projects safely and on schedule. We serve contractors by supplying reliable manpower for diverse specialty needs. As a career path, our trade offers promising opportunities for skilled professionals. Our training programs ensure continuous development of technical expertise. We remain committed to maintaining industry-leading standards in all our operations.
Services
Plumbing Services
Steamfitting
Welding
HVAC Installation
Medical Gas Systems
High-Purity Piping
Valve Repair
Water Treatment
Process Piping
Apprenticeship Training
Highlights and features
- We have over 130 years of experience in plumbing and mechanical construction
- Our workforce includes 1,950 certified plumbers and HVAC technicians
- We specialize in medical gas systems and high-purity piping installations
- We offer career development through industry-recognized apprenticeship programs
- Our members complete projects safely and on schedule across Iowa
Services
Plumbing Services
Our certified plumbers deliver comprehensive piping solutions for residential, commercial, and industrial applications. We handle complete system installations, repairs, and maintenance. Our technicians follow strict safety protocols while ensuring code compliance in all plumbing projects.
Steamfitting
Specialized installation and maintenance of high-pressure steam systems for industrial facilities. Our steamfitters work with complex piping networks requiring precision welding and ASME code compliance. We service power plants, manufacturing facilities, and large-scale heating systems.
Medical Gas Systems
Design and installation of critical medical gas distribution systems for healthcare facilities. Our certified technicians follow NFPA 99 standards for oxygen, nitrogen, and vacuum systems. We ensure sterile, leak-proof installations meeting strict healthcare regulations.
Apprenticeship Training
Comprehensive 5-year apprenticeship program combining classroom instruction with hands-on training. Our state-certified instructors teach pipefitting, welding, and HVAC systems. Graduates earn journeyman status with recognized industry credentials.
High-Purity Piping
Installation of contamination-free piping systems for pharmaceutical and semiconductor manufacturing. Our technicians use orbital welding and passivation processes to meet ASTM BPE standards. We maintain strict quality control for critical process applications.
People
Jama Barbour
Chief Operating Officer
Overseeing daily operations with 15+ years of union management experience. Holds multiple industry certifications in plumbing and project management. Committed to maintaining high training standards and member development.
Jeremy Lindquist
Training Director
Directs apprenticeship programs with 20+ years of technical instruction experience. Certified in welding and pipefitting education. Focuses on modernizing training methods while maintaining traditional craftsmanship standards.
Andy Roberts
Business Manager
Manages contractor relations with 25+ years in the plumbing industry. Expert in collective bargaining agreements and workforce development. Ensures quality service delivery across all project types.
Bill Erickson
HVAC-R Instructor
Certified HVAC trainer with 18 years of teaching experience. Specializes in refrigeration systems and energy-efficient installations. Develops curriculum for residential and commercial HVAC applications.
Chris Onstot
Assistant Training Director
Supports apprenticeship programs with 12 years of technical training experience. Focuses on safety protocols and modern piping techniques. Holds multiple journeyman certifications in plumbing and welding.
Questions
What areas do you serve?
We serve all of central and western Iowa, including Des Moines, Sioux City, and surrounding regions.
How can contractors access your workforce?
Contractors can contact our union hall directly or use our online manpower request system for qualified workers.
What training programs are available?
We offer a 5-year apprenticeship program covering plumbing, steamfitting, welding, and HVAC systems with both classroom and hands-on training.
What specialties do you offer?
Our members specialize in medical gas systems, high-purity piping, industrial steam systems, and process piping applications.
How to join the union?
Prospective members must apply through our apprenticeship program or transfer from another local union with equivalent journeyman status.
What experience do your workers have?
Our workforce includes 1,950 professionals with journeyman certifications and an average of 10+ years' experience in their specialties.
