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J.H. Simpson Company, Inc.

Stockton, CA 95204

Company Info

  • Est. 1944
  • Size 20-49 Employees
  • Annual Vol Undisclosed

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Our Story

The J.H. Simpson Company was established in 1944 by the late Joe Simpson as a sheet metal and furnace shop on East Main Street in Stockton, California. A short time later the shop was moved to Wilson Way in the old Maxwell Motors building and was there until the company was purchased in 1972 by Stew McGaw and his wife, Nancy. In 1974 they had a new modern facility built at the present location on Coronado Avenue with room to expand.

In 1977, the operation was purchased and managed by William J. (Bill) Relf, President and Marvin G. Rosato, Vice President. Both partners had been with the company since the early 1960's.

The J.H. Simpson Company offers a broad range of heating, ventilating and air conditioning, (HVAC) services which  includes institutional, commercial and residential, remodel and new construction projects including architectural sheet metal and stainless steel work.

A competent and well trained staff of designers and engineers, headed by Bill Relf, a California Registered Professional Mechanical Engineer, provides Design-Build services for the HVAC requirements of any type of application. This capability allows project owners a more flexible approach to design concepts with a faster time line and more cost effective solutions to project requirements.

The staff can provide mechanical services for all phases of construction, from preliminary cost analysis, mechanical system design, CAD drafting, fabrication, construction, installation, start-up, balancing and follow-up service. This "single source" capability lends significant value on any project. The designing, engineering, construction, installation and service all under the tight control of a single responsible source; results in savings and flexibility in custom designing.

A growing portion of the J.H. Simpson Company's business, mainly from referrals, is HVAC service, with a large portion of the work being the replacement market. The J.H. Simpson Company provides the services of highly trained technicians in specially equipped, radio dispatched service vans to serve the San Joaquin Valley and foothill areas of Northern and Central California.

Continuing education, training, and instruction are a priority at the J.H. Simpson Company. The company maintains a staff of approximately 30 employees who are members of the Sheet Metal Workers Union. One of the many reasons for the long record of success within the company is its stability and employee loyalty. Many employees have been with the company for years.

Our company recently made the move to becoming a all in one service provider. So with that being said the company has now added plumbing, solar, windows, roofing and general contracting services. This has now given us the ability to be a one stop shop.......

What We Do

Commercial Experience

Office Building Retail Store
Animal Hospital / Kennel Arena / Stadium Assisted Living Auto Dealership / Service Bank Church / Synagogue City / Town Hall Club House / Community Center Court House Design Build Fire / Police Station Fitness Center Gas Station Hospital / Nursing Home Hotel / Motel Industrial Maintenance Jail / Prison Laboratory Library Manufacturing Plant Medical Office Mixed Use Museum Parking Garage Post Office Radio / Television Station Restaurant School / College / University Sewage / Water Treatment Plant Storage Facility / Warehouse Terminal - Airport / Bus / Railroad Theater

Regions & Counties Serviced

  • California-Central Valley-Sacramento, Fresno, Bakersfield

California 13

  • Alpine
  • Amador
  • Calaveras
  • Contra Costa
  • El Dorado
  • Madera
  • Mariposa
  • Merced
  • Sacramento
  • San Joaquin
  • Stanislaus
  • Tulare
  • Tuolumne

Our CSI Codes

13 21 26 - Cold Storage Rooms
23 01 20 - Operation and Maintenance of HVAC Piping and Pumps
23 01 30 - Operation and Maintenance of HVAC Air Distribution
23 01 50 - Operation and Maintenance of Central Heating Equipment
23 01 60 - Operation and Maintenance of Central Cooling Equipment
23 01 70 - Operation and Maintenance of Central HVAC Equipment
23 01 80 - Operation and Maintenance of Decentralized HVAC Equipment
23 06 20 - Schedules for HVAC Piping and Pumps
23 06 30 - Schedules for HVAC Air Distribution
23 06 30.16 - Air Terminal Unit Schedule
23 06 30.19 - Air Outlet and Inlet Schedule
23 06 50 - Schedules for Central Heating Equipment
23 06 50.13 - Heating Boiler Schedule
23 06 70 - Schedules for Central HVAC Equipment
23 06 70.13 - Indoor, Central-Station Air-Handling Unit Schedule
23 06 70.16 - Packaged Outdoor HVAC Equipment Schedule
23 06 80 - Schedules for Decentralized HVAC Equipment
23 06 80.13 - Decentralized Unitary HVAC Equipment Schedule
23 06 80.16 - Convection Heating and Cooling Unit Schedule
23 20 00.00.01 - HVAC Piping and Pumps
23 30 00.00.01 - HVAC Air Distribution

Project Experience

  • Union
  • Public
  • Private
  • New Projects
  • Alterations/Renovations
  • Projects From $1,000 to $2,000,000
  • LEED Experience
  • BIM Experience

Diversity

  • Small Business Enterprise

Gallery

Featured Image 1
JHS PROJECTS
Featured Image 2
recent jobs
Featured Image 3
JHS PROJECTS
Featured Image 4
recent jobs

Associations & Memberships

Sheet Metal Workers Local 162
Sheet Metal Workers Local 162
SMACNA (Sheet Metal & Air Conditioning Contractors National Assn.)
SMACNA (Sheet Metal & Air Conditioning Contractors National Assn.)

Preferred Brands

Trane
Trane
Bryant Heating & Cooling Systems
Bryant Heating & Cooling Systems
Carrier Heating & Air Conditioning
Carrier Heating & Air Conditioning
Lennox
Lennox
Rheem
Rheem
Ruud
Ruud
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