Mechanical
& Boiler License
In-House
Fabrication & Sheet Metal
ASME CSD-1
Certified
EPA Section 608
Certified
Medical Gas
Certified
Engineered Mechanical Systems
Our team has experience in setting, installing, commissioning, and maintaining Boilers, Heat Pumps, Chillers, Cooling Towers, Air Handling Units (AHUs), Rooftop Units (RTUs), Make-up Air Units (MAUs), Pumps, Heat exchangers. You name it – we can do it!
Our crews bring decades of combined experience in mechanical fabrication, process piping, and sheet metal — so HVAC-R work integrates cleanly with the rest of your facility’s systems. When a critical unit goes down, we respond fast to keep your operation running.
We serve Mendon, Kalamazoo, and facilities throughout Southwest Michigan and beyond — showing up when we say we will, with the equipment and expertise to do it right the first time.
What We Do
Mechanical & HVAC-R Services
From engineered design-build to scheduled preventive maintenance — Jergens handles every stage of commercial and industrial mechanical systems.
Preventative Maintenance
What a Maintenance Visit Covers
On a scheduled maintenance visit, our technicians inspect and service your heating, cooling, and ventilation equipment — verifying it operates safely and efficiently before peak demand and documenting everything for your records.
Time to Replace?
Signs It’s Time to Plan a Replacement
Aging mechanical equipment runs less efficiently and fails more often. Watch for these signs that it’s time to budget for a replacement.
Rising Energy Costs
Steady increases in fuel or electricity use — even at normal load — point to declining equipment efficiency.
Frequent Service Calls
If you’re paying for repairs every season, a replacement is usually the more economical long-term decision.
Inconsistent Performance
Uneven temperatures or humidity across zones signal equipment that can no longer meet the load.
Obsolete Refrigerant
Systems running phased-out refrigerants like R-22 are increasingly costly and difficult to service.
Capacity Mismatch
Equipment that no longer matches your facility’s load wastes energy and shortens its own service life.
Past Service Life
Most commercial systems run 15–20 years; beyond that, modern equipment runs far cleaner and cheaper.
Cooling & Refrigeration
Reliable Cooling. Engineered to Last.
Modern cooling and refrigeration systems from Jergens are engineered for efficiency — delivering dependable performance and lower operating costs, even at peak summer load across Southwest Michigan.
Engineered & Sized Right
Properly sized to your facility’s load, installed correctly, and fully commissioned before we leave.
All Major Manufacturers
We install and service all major commercial HVAC-R brands — you’re never locked into a single manufacturer.
Service Agreements
Scheduled maintenance contracts protect your investment, extend equipment life, and keep warranties valid.
In-House Fabrication
Ductwork, sheet metal, and process piping fabricated in-house — so every system integrates cleanly.
Minimal Disruption
We coordinate around your production schedule and planned shutdowns to keep downtime to a minimum.
Licensed & Insured
Fully licensed, bonded, and insured — you’re working with a qualified mechanical contractor you can trust.
