Emergency HVAC Services

An HVAC emergency is any situation where waiting until normal business hours creates a safety risk, health risk, or property damage risk. The clearest emergencies are: no heat when outdoor temperatures are below 32°F, no cooling during a heat advisory (especially with elderly residents, infants, or anyone with respiratory or cardiovascular conditions in the home), a gas smell near the furnace or boiler, water leaking from an HVAC component, a furnace making banging or grinding noises, a system that keeps tripping the breaker, and any situation where carbon monoxide detectors are alarming. If you're unsure whether your issue qualifies, call our dispatch line at (224) 253-8131 — we'll triage over the phone and tell you honestly whether it's safe to wait or whether we should head out now.

For true emergencies in our core service area (Chicago, Lemont, Downers Grove, Palatine, Bartlett, St. Charles, Schaumburg, Elgin, and adjacent suburbs), we typically have a technician at your home within 60 to 90 minutes of your call. Response times vary by time of day, current emergency call volume, and your distance from the nearest service hub. Saturday nights during heat waves and weekday early mornings during cold snaps are our busiest dispatch windows — if you're calling during peak demand, we'll give you an honest arrival estimate rather than an optimistic one.

Eco Temp HVAC does not charge premium after-hours fees for emergency dispatch. Our diagnostic service call rate is the same whether you call at 2:00 PM on a Tuesday or 2:00 AM on a Sunday during a holiday weekend. Many HVAC contractors charge 1.5x to 2x rates for nights and weekends, which can add hundreds to an emergency repair bill. Our pricing transparency is one of the reasons our customers stay with us long-term — you get the same flat diagnostic fee credited toward repair regardless of when you call.

Before calling, check three things that resolve roughly 30% of nighttime furnace calls. First, verify the thermostat is set to "Heat" and the target temperature is above the current room temperature — accidental setting changes are surprisingly common. Second, check that the furnace's power switch (usually a regular light switch near the unit) hasn't been flipped off, and that the circuit breaker for the furnace hasn't tripped. Third, if you have a high-efficiency furnace, check that the condensate drain isn't frozen or backed up — a full condensate pan can shut down the system as a safety measure. If those checks don't resolve it, call (224) 253-8131. While waiting, close interior doors to concentrate residual heat in occupied rooms, and avoid using a stove or oven as a heat source (carbon monoxide risk).

Treat any gas smell as a life-safety emergency. Do not turn on or off any electrical switches, do not light matches, do not use your phone inside the house. Leave the home immediately with all occupants and pets, then call Nicor Gas at 1-888-642-6748 from outside the home or from a neighbor's house. Nicor will dispatch a technician to safely shut off your gas service at no charge. Once Nicor has secured the gas, then call Eco Temp HVAC to diagnose and repair the source of the leak. This is one situation where you should not wait for an HVAC contractor — the utility company comes first because they can safely cut the gas supply, which our technicians cannot do at the meter.

Emergency HVAC repair costs depend on what's wrong, not when you call. Our diagnostic service call is $89-$150 (credited toward the repair if you proceed). Common emergency repairs in the Chicago area run: capacitor or contactor replacement $150-$450, blower motor replacement $400-$900, ignitor or flame sensor replacement $200-$450, circuit board replacement $500-$1,100, refrigerant recharge with leak repair $400-$1,200, condensate pump replacement $300-$600. Major issues like compressor failure, heat exchanger cracks, or evaporator coil replacement range $1,500-$4,500 and usually warrant a repair-versus-replace conversation. Every Eco Temp HVAC emergency call includes written, itemized pricing before any work begins — no surprise charges.

The standard rule of thumb is the "5,000 rule": multiply the age of the system by the repair cost, and if the result exceeds $5,000, replacement usually makes more financial sense than repair. A 15-year-old furnace needing a $400 repair scores 6,000 — replace. A 7-year-old AC needing a $500 capacitor scores 3,500 — repair. That said, emergency dispatch is rarely the right moment to commit to a full system replacement. Our technicians can perform the emergency repair to restore comfort tonight, then schedule a no-pressure replacement consultation for daylight hours when you can review options, financing, rebates, and tax credits without making a stressed decision at 11:00 PM.

Yes. Our NATE-certified emergency technicians service every major brand installed in Chicago-area homes including Trane, Bryant, Carrier, Lennox, American Standard, Rheem, Goodman, Amana, Mitsubishi, Daikin, Fujitsu, Payne, Ruud, York, Navien, Weil-McLain, and Burnham. Our emergency service trucks stock the most common replacement parts for all major brands — capacitors, contactors, ignitors, flame sensors, condensate pumps, transformers, fan motors, and common circuit boards — which is why most emergency repairs are completed during the first visit rather than requiring a parts-order return trip.

Possibly, depending on your specific coverage. Manufacturer warranties on HVAC equipment typically cover parts for 5-10 years (sometimes longer on heat exchangers and compressors), but they generally do not cover labor after the first year. Home warranty plans (American Home Shield, Choice Home Warranty, etc.) usually cover both parts and labor minus a service fee, but they often require you to use their assigned contractors rather than Eco Temp HVAC, and dispatch times can be much slower than direct emergency calls. If your situation is a true comfort or safety emergency, calling us directly and pursuing reimbursement through your warranty afterward is often the faster path. We'll provide detailed invoices that home warranty companies typically accept for reimbursement claims.

Most emergency HVAC failures we respond to are predictable problems that progressed unnoticed. Annual maintenance catches the early warning signs: weak capacitors before they fail, dirty flame sensors before they shut down the furnace, low refrigerant before the compressor overheats, and clogged condensate drains before they trigger a system shutdown. The Eco Home Program includes scheduled seasonal maintenance with spring AC cleaning and fall heating cleaning, priority scheduling during busy seasons, no overtime charges on covered service visits, $50 off the standard diagnostic fee, a 10% discount on qualifying repairs, services, and air purification products, and $100 per year credit toward a future new HVAC system.