Commercial HVAC, rooftop units, walk-in coolers and residential AC & furnace service for Mokena. Licensed, insured, bilingual EN/ES.
When your air conditioner quits on the hottest day of summer or your furnace won't start on a cold Illinois night, Heavy Duty Heating & Cooling responds fast to Mokena. We're based nearby in Joliet and treat every Mokena home and business with the same care we'd give our own family. Licensed, certified, and bilingual — English and Spanish.
We offer free estimates on new installations, fair pricing with no surprise charges, and 24/7 emergency availability across Mokena and the surrounding Will County communities.
Mokena's business corridors along LaGrange Road and 191st Street are full of restaurants, retail and offices that live and die by their HVAC and refrigeration. We service rooftop units (RTUs), and — unlike most HVAC companies in the area — we repair walk-in coolers and freezers, the kind of emergency that can cost a restaurant thousands of dollars in spoiled product if it isn't fixed fast.
For Mokena homeowners we're a full-service HVAC contractor too: AC and furnace repair and installation, ductless mini-splits, and seasonal tune-ups. Commercial or residential, you get an up-front quote and honest work.
Serving Mokena (60448) in Will County from nearby Joliet — 24/7 emergency response for businesses, in English or Spanish.
📍 Serving Mokena: 60448 · Will County — and the wider Joliet area
Complete heating and cooling solutions for residential and commercial properties.
Fast diagnosis and repair of all central AC systems. We restore your cool quickly at fair prices.
Learn More →Expert installation of energy-efficient AC systems sized right for your Mokena home or business.
Learn More →Gas furnace troubleshooting, repair, and tune-up. Reliable heating through every Illinois winter.
Learn More →High-efficiency furnace installation with proper sizing, ductwork inspection, and full warranty.
Learn More →24/7 emergency heating and cooling response. We answer when you need us most — day or night.
Learn More →Ductless mini-split systems for additions, garages, or any space needing independent climate control.
Learn More →Commercial heating and cooling for businesses, restaurants, offices, and retail. Walk-in cooler service available.
Learn More →Smart thermostat installation, HVAC tune-ups, and preventive maintenance to cut energy bills.
Learn More →Based in Joliet, fast response to Mokena. Same-day & 24/7 emergency.
Free estimates, no hidden fees, upfront quotes before work begins.
English & Spanish service for all Mokena customers.
Fully licensed, certified, and insured HVAC professionals.
Local business treating every Mokena customer like a neighbor.
We stand behind every repair and installation.
Based in Joliet — serving Will, Cook & DuPage Counties, IL.
★★★★★
5.0 out of 5 · 18 verified Google reviews
Real work from our own jobs — air conditioning, heating, ductless and commercial HVAC.
We're based in nearby Joliet, a short drive from Mokena, so we offer same-day and 24/7 emergency response across 60448.
Yes — this is one of our specialties and most HVAC companies near Mokena won't touch it. If your walk-in goes down, call us fast; we prioritize refrigeration emergencies to protect your inventory.
Yes — free estimates on new system installations for Mokena homes and businesses. Call or text (815) 212-7662.
Sí. Brindamos servicio HVAC completo en inglés y español, desde la primera llamada hasta la factura final.
Get a free estimate or schedule service. We respond quickly for Mokena-area customers.