Jeff helped us out when our Air condition gave out and temps were high 80’s. My wife works from home and we have a 3 month old baby, we were in a real pickle. Jeff was super knowledgeable, quick and honest. Thank you Jeff for the help
Emergency cooling
24/7 Emergency AC Repair
When the house is heating up, call directly. A trained technician can identify the failure, explain the repair and help restore safe comfort.
24/7 emergency HVAC Licensed, bonded & insured
4.9Google rating
637 reviews
637 reviews
Since 1999Family owned & local
NATE techniciansExperienced diagnosis
BBB A+Accredited business
24/7 HVACEmergency availability
What we handle
Service built around the cause—not just the symptom.
Fast, around-the-clock air conditioning troubleshooting across McHenry and Lake Counties.
01
No-cooling diagnosis
02
Electrical and control troubleshooting
03
Refrigerant-system evaluation
04
Repair recommendations explained before work
The McHenry method
Diagnose carefully. Explain clearly. Verify completely.
01
Measure before recommendingPerformance, safety and system conditions establish what is actually happening.
02
Make the tradeoffs visibleWhen more than one path makes sense, you should understand the cost, life and comfort implications.
03
Test the completed workThe repair or installation is checked in operation, then reviewed with the homeowner.
Straight answers
Common questions about 24/7 emergency ac repair.
Every home and system is different. These answers help you prepare; an on-site diagnosis confirms the right next step.
Ask another questionWhat should I do before calling?
Check the thermostat setting and breaker once. If the breaker trips again, leave it off and call.
Is emergency AC help available overnight?
Yes. McHenry Heating & Air advertises 24/7 heating and cooling emergency service.
Should I keep running an iced-over system?
No. Turn cooling off and run the fan only if safe, then request service so the cause can be diagnosed.
Verified Google reviews
What local homeowners say about 24/7 emergency ac repair
4.9from 637 Google reviews
Twenty real, non-repeating Google reviews selected for this ac repair/emergency slider.
Our air conditioner went out and Chris was out right away and got us back up and running! Amazing service and very professional at explaining everything he was going to do and what was wrong. Will definitely be using McHenry Heating & Air, Inc again if needed!
Had an overall great experience with McHenry Heating & Air today. AC went out last night and my call was retuned first thing this morning. Jason, our technician, was working on our AC unit by noon same day. He was knowledgeable, identified the problem quickly and came up with a solution on the spot. Every detailed was explained. Greatly appreciate the authentic and honest approach!
01 / 20
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