Commercial & Industrial Air Conditioning Services in Rockford, IL & Madison, WI

Between the summer weather outside and heat gains from equipment inside, a commercial or industrial facility requires a robust air conditioning solution to maintain suitable temperatures throughout the cooling season. To keep the AC equipment running as effectively and efficiently as possible, it is important to choose a qualified commercial HVAC contractor.

With more than 40 years of commercial HVAC service in the Northern Illinois and Southern Wisconsin region, your business can count on Northern Mechanical for reliable, cost-effective commercial air conditioning service. We offer everything from routine maintenance and repairs to emergency service, system design, and complete installations. We feature skilled, experienced technicians that can help with all your commercial air conditioning needs in Rockford, IL; Madison, WI; and the surrounding communities.

Is your air conditioning system due for service or in need of repairs? Call Northern Mechanical at 815-654-7900 or contact us online to schedule AC services in Rockford, IL or Madison, WI today!

Commercial Air Conditioning Installation in Rockford, IL

Whether your business is providing a comfortable environment for customers and employees or you have sensitive equipment and products that need to remain cool, our experts at Northern Mechanical can design and install an air conditioning system that is tailored to the needs of your facility. We offer complete air conditioning installations and replacements, design/build services, and more. Our skilled technicians can provide an energy-efficient, reliable installation for all common air conditioning equipment, including:

  • Rooftop HVAC units and packaged systems
  • Split systems and heat pumps
  • Data center and computer room AC systems
  • Chillers and process cooling systems
  • Dehumidifiers

To learn more about our commercial AC installation services, contact us today. We serve Rockford, Sterling, Machesney Park, Loves Park, Burlington, and beyond.

Commercial AC Maintenance in Madison, WI

During the peak of summer in Wisconsin or Illinois, commercial AC systems can be put under considerable strain, and without proper maintenance, they could malfunction, leading to unnecessary downtime and losses. At Northern Mechanical, we can provide the preventative maintenance required to keep your air conditioning systems running optimally, and in addition to commercial air conditioning maintenance, we also offer custom maintenance programs that cover all your commercial heating, cooling, and refrigeration equipment.

Our AC maintenance services are a cost-effective way to protect your equipment, save energy, and reduce downtime, and a typical service visit includes:


  • System operation and efficiency
  • Safety and control operation
  • Compressor and motor current
  • Refrigerant levels and pressures
  • Economizer operation


  • Refrigerant lines, valves, and fittings
  • Blower drive motors and bearings
  • Electrical terminals, wires, and contacts
  • Condensate pans and drains
  • Condenser and evaporator coils


  • Replace air filters
  • Check refrigerant charge
  • Lubricate bearings, bushings, actuators, and other moving parts
  • Clean coil, drain, and dip pans

Contact us today to schedule AC maintenance at your Madison or Janesville facility.

24-Hour Air Conditioning Repair in IL & WI

When you have a problem with the air conditioning system at your commercial or industrial facility, don’t hesitate to call our team at Northern Mechanical. We are available 24 hours a day for commercial air conditioning repair throughout Northern Illinois and Southern Wisconsin, and our technicians have the skills to diagnose and repair most AC problems quickly.

From minor malfunctions to major emergencies, trust Northern Mechanical for all your AC repair needs.

For fast, reliable AC repairs in Illinois or Wisconsin, contact our team today.

Schedule Commercial AC Services in Rockford, IL & Madison, WI

When you need expert commercial AC services in the Rockford or Madison areas, choose our proven professionals at Northern Mechanical.
Call 815-654-7900 or contact us online to schedule an appointment today.

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