Computer Room Air Conditioning
Sheet Metal Fabrication and installation
Compressed Air Systems
To ensure good customer relations, all of our estimators and technicians are trained in Ammonia Emergency Response Training and are certified for CFC Recoveries. To enable us to be more responsive to your business needs and provide you with on site supervision of every job, all of our mechanics have a service vehicle, fully equipped for prompt 24 hour, 7 day per week service. Consequently, we have a reputation for completing jobs on time and within projected cost estimates. Janssen technicians are also members of the Refrigeration Division of Pipe fitters Local 636.
Further, for your convenience, we offer a leasing program through General Funding Corporation for your labor, material and equipment. We can set up a monthly payment schedule, whereby you would own the equipment and materials at the end of the lease term. To discuss lease arrangements, please contact our Leasing Division.
To better acquaint you with our services and experience, the following additional information is listed. Should you have any questions, please do not hesitate to contact us to discuss your specific requirements. We look forward to servicing your needs and working with you.
Service areas include: The Eastern half of Michigan including the following areas: Metro Detroit, Down River, Saginaw, Bay City, Flint and Ypsilanti. Fully licensed and insured.
We are a licensed and insured full service organization
for commercial and industrial ammonia and freon refrigeration, process chillers, HVAC, boilers, and controls used by the automotive industry, industrial process businesses, meat and fish packers/processors, cold storage warehouse, bakeries, dairies, bottling plants, and restaurants. We service all makes and models of ice making equipment and furnish a large variety of ice bins to meet your every need and space requirement. We also provide heating, air conditioning, and complete building automation packages for office buildings and manufacturing companies. Our services range from engineering design to complete turn-key projects and maintenance of your facilities equipment.
Ammonia & Freon
Sales - Commercial and Industrial
Service - Commercial and industrial
Niagara No-frost Systems
Boilers (steam & water)
VAV and CAV Systems
Ultra Low-temp (two stage cascade systems)
Make-up Air Units
Assorted types of piping:
Copper, Stainless, Steel, Victaulic
Janssen Refrigeration has been serving Metro Detroit Since 1968