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Business Details
39 Years
experience
Your Trusted Commercial Plumbing & Underground Contractor in Stockton
Established in 1987, Haley Contracting has built a reputation as a trusted leader in commercial and industrial plumbing and underground utility systems. Our company was founded in Stockton, California, and has expanded to serve the Central San Joaquin Valley, East Bay Area, and Boise, Idaho. We operate as a full-service contractor with licenses in plumbing, general engineering, and fire protection, delivering comprehensive solutions for complex projects. Our team specializes in design-build services, ensuring cost efficiency and functionality while maintaining a focus on quality and competitive pricing. With over 33 years of experience, we have completed diverse projects across restaurants, schools, healthcare facilities, and manufacturing plants.

Our commitment to excellence is supported by $2 million in general liability insurance and $1 million in auto and workers' compensation coverage. We prioritize client satisfaction through transparent communication, attention to detail, and a workforce of skilled plumbers, operators, and design professionals. Our mission emphasizes repeat business through timeliness, integrity, and service-minded attitudes. We maintain a modern fleet of equipment for sewer, storm drain, and water system installations, including video inspection and leak detection technologies. Our expertise in PG&E-certified work and underground infrastructure positions us as a reliable partner for both prevailing wage and private projects.
Services
Commercial Plumbing Underground Piping Design-Build Services PG&E-Certified Work Septic Systems Storm Drain Installation Water Main Repairs Fire Protection Systems Vacuum Piping Bio-Retention Areas
Details
  • Year established: 1987
Highlights and features
  • We offer over 33 years of experience in commercial and industrial plumbing systems.
  • Our team provides full-service underground utility solutions with modern equipment.
  • We specialize in design-build projects that prioritize cost efficiency and functionality.
  • We hold A, B, C-36, and C-16 licenses for plumbing and general engineering work.
  • Our $2 million general liability insurance ensures client protection and trust.
What people say
Courteous and easy to work with Refreshing to speak to a person Completed west pond drainage successfully Followed through to right people Professional and reliable team
Services
Commercial Plumbing
We design and install complete commercial plumbing systems for new buildings and renovations. Our services include sewer, vent, water, and gas systems tailored to restaurants, offices, and healthcare facilities. Our C-36 licensed team ensures code compliance and long-term functionality.
Underground Piping
Our General Engineering A license enables full underground utility solutions. We handle sewer mains, storm drains, water lines, and fire protection systems with excavation equipment and video inspection technology. Projects include connections for retail centers and industrial parks.
Design-Build Services
We manage complete projects from concept to completion, coordinating plumbing and underground work under one contract. This approach eliminates finger-pointing between subcontractors and ensures seamless system integration for clients across California and Idaho.
PG&E-Certified Work
Our team meets PG&E's stringent requirements for electrical vault installations and related infrastructure. This certification allows us to work on critical energy projects requiring specialized safety protocols and technical expertise in medical and industrial complexes.
Septic Systems
We install and repair residential and commercial septic systems including D-box and bio-retention areas. Our services ensure proper wastewater management for properties not connected to municipal sewer lines, using modern excavation and inspection equipment.
People
Jim Haley
President
Jim Haley leads with 30+ years of mechanical engineering experience, specializing in design-build projects. He previously worked with major Stockton engineering firms, developing cost-effective plumbing systems for industrial clients while maintaining technical excellence and project efficiency.
Questions
What commercial plumbing services do you offer?
We handle complete commercial plumbing systems including sewer, vent, water, and gas lines for restaurants, offices, and industrial facilities.
Do you work on underground utility projects?
Yes, we specialize in sewer mains, storm drains, water lines, and fire protection systems with full excavation and inspection capabilities.
Are you licensed for PG&E projects?
Yes, we're certified to install electrical vaults and perform utility work meeting PG&E's requirements for energy infrastructure projects.
What areas do you serve?
We operate throughout California's Central San Joaquin Valley, East Bay Area, and Boise, Idaho with local offices in Stockton.
Can you handle design-build plumbing projects?
Yes, we manage complete design-build projects from concept to completion, ensuring seamless integration of all plumbing and underground systems.