HVAC emergencies don't wait for business hours. When heating or cooling fails in Naperville, Heavy Duty Heating & Cooling is available 24/7 — including nights, weekends, and holidays.
An HVAC breakdown in extreme heat or cold is more than uncomfortable — it can be dangerous. Heavy Duty Heating & Cooling provides 24/7 emergency HVAC throughout Naperville and DuPage County. When you call, a real person answers — not voicemail. We dispatch fast and arrive ready to repair.
Our emergency vehicles carry common HVAC parts, enabling same-visit repairs for most Naperville emergency calls. Transparent pricing even after hours — no surprise emergency fees.
Naperville consistently ranks among the best places to live in Illinois. Homes range from starter condos to luxury estates, and our technicians handle everything from small townhouse units to complex whole-home zoning systems throughout the city.
📍 Key areas in Naperville: Downtown, Riverwalk area, West Naperville, Naper Settlement corridor · ZIP: 60540
AC failure in extreme summer heat — we prioritize your call and dispatch immediately to Naperville.
Furnace failure in an Illinois winter is a safety emergency. Priority response for no-heat calls.
If you smell gas, leave and call 911 first. Once safe, we provide emergency furnace service.
We service Naperville after hours, weekends, and holidays — because emergencies don't follow schedules.
Cold-weather HVAC failures can cause frozen pipes. Emergency heating restoration prevents serious damage.
Restaurants and businesses in Naperville can't afford HVAC downtime. Commercial emergency response available.
Same-day & emergency service in Naperville and DuPage County.
Free estimates, no hidden fees, upfront quotes before work begins.
English & Spanish service for all Naperville customers.
Fully licensed, certified, and insured HVAC professionals.
Local business treating every Naperville customer like a neighbor.
We stand behind every job with a satisfaction guarantee.
Yes. We answer and dispatch around the clock for genuine emergencies in Naperville and DuPage County.
We aim for same-day response with priority dispatch during extreme weather conditions.
We charge fair rates. We always provide a clear estimate before beginning any work.
No heat in freezing temps, no AC in extreme heat, gas odor, or complete system failure all qualify.
Based in Joliet — serving Will, Cook & DuPage Counties, IL.