Furnace Repair & Installation Services

Delfino Refrigeration specializes in air conditioning repair and installation for commercial and residential customers throughout the Chicago to Milwaukee corridor. When summer heat and humidity hit northern Illinois and southeastern Wisconsin, a properly functioning air conditioning system is essential for employee productivity, customer comfort, and product protection. Whether your commercial rooftop AC unit has failed, your residential central air isn’t cooling, or you need a new air conditioning system installed, Delfino Refrigeration delivers fast, affordable AC repair service.

Our EPA-certified technicians service all types of air conditioning systems including central air conditioners, rooftop package units, split systems, ductless mini-splits, and commercial multi-zone systems. We work on all major brands and provide honest diagnostics — including thorough refrigerant leak checks that other contractors skip.

Air Conditioning Repair Services

Central air conditioning repair and diagnostics
Commercial rooftop AC unit repair and replacement
AC compressor repair and replacement
AC condenser and evaporator coil cleaning and repair
AC refrigerant leak detection and repair
AC thermostat and control system repair
AC fan motor and capacitor replacement
AC ductwork inspection and repair
Ductless mini-split repair and installation
New AC installation — residential and commercial
AC system sizing and replacement consultation

Air Conditioning Preventive Maintenance

Pre-season air conditioning maintenance is the best investment you can make to ensure reliable cooling all summer long. Delfino Refrigeration’s AC maintenance service includes condenser coil cleaning, evaporator coil inspection, refrigerant level verification, electrical connection testing, thermostat calibration, filter replacement, drain line clearing, and overall system performance testing. We recommend scheduling your annual AC maintenance in spring before the first heat wave hits.

Air Conditioning Repair — Frequently Asked Questions

Why is my air conditioner running but not cooling?

An air conditioner that runs but doesn’t cool is typically caused by low refrigerant (often from a leak), dirty condenser coils blocking heat dissipation, a frozen evaporator coil, a failed compressor, or a malfunctioning thermostat. Delfino Refrigeration’s technicians will systematically diagnose the issue and — unlike many contractors — we’ll check thoroughly for refrigerant leaks rather than just topping off the system.

How much does air conditioning repair cost?

Air conditioning repair costs vary depending on the type of equipment and the specific problem. Simple repairs like capacitor replacement are relatively affordable, while compressor replacement is a larger investment. Delfino Refrigeration always provides an upfront estimate before starting any air conditioning repair work. All repairs come with our 45-day parts and labor warranty.

How often should commercial air conditioning be serviced?

Commercial air conditioning systems should be professionally serviced at least once per year, ideally in spring before cooling season. High-demand commercial environments like restaurants, data centers, and retail spaces benefit from bi-annual air conditioning service. Regular maintenance reduces energy costs, prevents breakdowns during peak cooling season, and extends equipment life.

Can Delfino Refrigeration install a new air conditioning system for my business?

Yes. Delfino Refrigeration provides complete commercial and residential air conditioning installation services. We’ll assess your space, recommend the properly sized system for your needs, install the equipment to manufacturer specifications, and ensure everything is running optimally before we leave. We install all major air conditioning brands including Carrier, Trane, Lennox, York, and Daikin.

Schedule Your Service Today

Contact Delfino Refrigeration today for a free estimate on any of our commercial or residential HVAC and refrigeration services. Our EPA-certified technicians are ready to help with repairs, maintenance, and installations across our full service area from Chicago to Milwaukee.

Furnace Repair & Installation Services

Air Conditioning Repair Services

Air Conditioning Preventive Maintenance

Air Conditioning Repair — Frequently Asked Questions

Schedule Your Service Today

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