Commercial HVAC & Mechanical Contractors

Serving the Rockford, IL & Madison, WI Areas

Since 1980, Northern Mechanical has been a quality provider of commercial HVAC systems and service. We are committed to providing the best service available to our customers. We constantly invest in staff training, state-of-the-art technology, and equipment to make sure we meet our customer’s needs.

Northern Mechanical’s team has the commercial HVAC expertise necessary to service manufacturing facilities, hospitals, healthcare facilities, schools, churches, and more throughout Northern Illinois and Southern Wisconsin. We can provide complete design, installation and service capabilities including plumbing, pipefitting, electrical and sheet metal fabrication. Our services range from routine service and new construction to preventive maintenance and emergency 24-hour service.

Get in touch with the mechanical contractors at Northern Mechanical by dialing 815-654-7900 or contacting us online today.

24/7 Emergency Commercial HVAC Service

Our skilled staff is capable of handling any HVAC need you may have, whenever you may have it. We understand that your commercial facility requires a functioning HVAC system to stay in business. That’s why we offer emergency service 24/7. We’ll work with your company’s schedule to reduce your downtime, so you can focus on what matters most.

Need emergency HVAC service for your commercial facility? Call 815-654-7900 now!

Preventive HVAC & Refrigeration Maintenance

Preventive maintenance is your key to combating the increasing costs of operating your heating, ventilating, AC, and refrigeration equipment. Northern Mechanical offers preventive maintenance services for commercial customers throughout Northern Illinois and Southern Wisconsin.


Air Conditioning Units
Computer Room Systems
Heat Pumps


Exhaust Systems
Make Up Air
Air Balancing


Ice Machines
Ice Dispensers
Steamers / Fryers
Ovens / Grills


Reach Ins / Walk Ins
Display Cases
Water Coolers
Process Cooling


Temperature Controls
Pneumatic Systems
Industrial Controls
Energy Management

Our parent company, PremiStar, is a high-growth HVAC services company that transforms our industry through extraordinary people, unique customer-centered solutions, and unprecedented results. To learn more about career opportunities at PremiStar, please visit PremiStar.com/careers!

Contact Us Today!

Phone: (815) 654-7900

Email: office@nomech.com