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
Home comfort, handled
Air Conditioner Repair
A good repair visit solves the immediate symptom and identifies why it happened, without burying the homeowner in jargon.
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.
Straightforward residential AC repair for McHenry County, Lake County and nearby communities.
01
Performance testing
02
Capacitor, contactor and control repair
03
Drainage and airflow correction
04
System condition and repair-life guidance
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 air conditioner repair.
Every home and system is different. These answers help you prepare; an on-site diagnosis confirms the right next step.
Ask another questionCan you repair all major air conditioner brands?
The team works on a broad range of residential equipment and can confirm parts availability after diagnosis.
Why does my AC keep freezing?
Restricted airflow, dirty components or a refrigerant-side issue can all contribute. A technician should test the system before adding refrigerant.
How do I know if repair still makes sense?
Age, failure type, operating cost, comfort and repair history all matter. The technician can explain those factors without forcing a replacement.
Verified Google reviews
What local homeowners say about air conditioner 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!
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