Commercial HVAC Repair & Maintenance Services

Delfino Refrigeration specializes in commercial HVAC repair and maintenance for businesses throughout the Chicago to Milwaukee corridor. Whether your rooftop unit has stopped cooling, your commercial heating system is underperforming, or you need a preventive maintenance plan to keep your HVAC equipment running efficiently, our EPA-certified technicians have the expertise to diagnose and resolve any commercial HVAC issue quickly and affordably.

Since 2017, Delfino Refrigeration has built a reputation as the go-to commercial HVAC repair provider for restaurants, convenience stores, grocery stores, hospitals, warehouses, hotels, and businesses of all sizes across Lake County IL, McHenry County IL, the Fox Valley, Chicago’s northwest suburbs, and southeastern Wisconsin. Every technician on our team brings 10+ years of hands-on HVAC experience and carries full EPA certification and liability insurance.

Our Commercial HVAC Repair Services

Delfino Refrigeration provides comprehensive commercial HVAC repair services for all types of heating, ventilation, and air conditioning equipment:

Rooftop HVAC unit repair and replacement
Commercial furnace repair — gas and electric
Commercial air conditioning repair and installation
Heat pump repair, installation, and seasonal maintenance
Thermostat and control system diagnostics and repair
Ductwork inspection, repair, and sealing
Air handler and blower motor repair
Compressor diagnostics and replacement
Electrical component repair and replacement
Commercial HVAC system sizing and installation

Commercial HVAC Preventive Maintenance Plans

The most cost-effective way to keep your commercial HVAC system running reliably is a preventive maintenance plan from Delfino Refrigeration. Our commercial HVAC maintenance plans include seasonal inspections, filter replacements, coil cleaning, refrigerant level checks, electrical connection testing, and thermostat calibration. Businesses that invest in regular commercial HVAC maintenance experience fewer breakdowns, lower energy bills, and significantly longer equipment lifespans.

We customize every commercial HVAC maintenance plan based on your specific equipment, business type, and operating schedule. Whether you operate a single-location restaurant or manage multiple commercial properties, Delfino Refrigeration will design a maintenance program that keeps your systems running at peak efficiency year-round.

Why Choose Delfino Refrigeration for Commercial HVAC Repai

EPA-certified technicians with 10+ years of commercial HVAC experience each
Fast response times across our entire Chicago to Milwaukee service area
45-day parts and labor warranty on all commercial HVAC repairs
Transparent, upfront pricing with no hidden fees
We service all major commercial HVAC brands: Carrier, Trane, Lennox, York, Daikin, and more
Available for emergency commercial HVAC repair when your business can’t wait
Trusted by national brands including McDonald’s, Subway, 7-Eleven, Jimmy John’s, and Potbelly

Commercial HVAC Repair — Frequently Asked Questions

How quickly can Delfino Refrigeration respond to a commercial HVAC repair call?

We understand that a broken commercial HVAC system means lost revenue and uncomfortable conditions for your customers and employees. Delfino Refrigeration prioritizes fast response times for all commercial HVAC repair calls across our service area from Chicago to Milwaukee. In most cases, we can have an EPA-certified technician on site within 24 hours, with emergency commercial HVAC repair service available for urgent situations.

What does a commercial HVAC maintenance plan from Delfino Refrigeration include?

Our commercial HVAC maintenance plans are customized to your specific equipment and business needs. A typical plan includes bi-annual inspections (pre-summer cooling check and pre-winter heating check), air filter replacement, condenser and evaporator coil cleaning, refrigerant level verification, electrical connection tightening and testing, thermostat calibration, belt inspection and replacement, and a detailed report of your system’s condition after each visit.

Does Delfino Refrigeration work on all commercial HVAC brands?

Yes. Our technicians are trained and experienced in repairing and maintaining all major commercial HVAC brands including Carrier, Trane, Lennox, York, Daikin, Goodman, Rheem, Ruud, Bryant, and many others. Whether you have a rooftop package unit, split system, or multi-zone commercial HVAC setup, Delfino Refrigeration has the expertise to service it.

How much does commercial HVAC repair cost?

The cost of commercial HVAC repair varies depending on the type of equipment, the nature of the problem, and the parts required. Delfino Refrigeration provides transparent, upfront pricing before beginning any work. We’ll diagnose the issue, explain what’s needed, and give you a clear estimate so there are no surprises. All commercial HVAC repairs are backed by our 45-day parts and labor warranty.

What areas does Delfino Refrigeration serve for commercial HVAC repair?

Delfino Refrigeration provides commercial HVAC repair services throughout the Chicago to Milwaukee corridor, including Lake County IL, McHenry County IL, the Fox Valley and Elgin area, Chicago’s north side and northwest suburbs, Kenosha County WI, Racine County WI, Milwaukee County WI, Waukesha County WI, and the Lake Geneva area. We serve over 80 communities across northern Illinois and southeastern Wisconsin.

Schedule Your Service Today