Our 17-year-old furnace died on a very cold holiday weekend! 😭 Jeff was SO KIND and came out twice on Saturday. We ended up needing a new furnace and he got it all arranged and let us borrow a space heater. Russ and Neil were great and installed it on Monday. Cassie got the permit with the city and the whole process was smooth and easy. Communication was fantastic. They were even nice to our crazy dogs. So grateful to have a warm house again! We trust McHenry Heating 100%! Thank you!
Heating
Garage Heater Service & Installation
A properly selected and installed garage heater can make work and storage spaces more usable through northern Illinois winters.
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.
A properly selected and installed garage heater can make work and storage spaces more usable through northern Illinois winters.
01
Garage heating needs assessment
02
Equipment location and control planning
03
Garage heater installation
04
Existing garage heater troubleshooting
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 garage heater service & installation.
Every home and system is different. These answers help you prepare; an on-site diagnosis confirms the right next step.
Ask another questionWhat size heater does my garage need?
Selection depends on garage size, ceiling height, insulation, air leakage, desired temperature, and available utilities.
Where should a garage heater be installed?
Placement should consider clearances, airflow, venting, controls, and service access.
Can you repair an existing garage heater?
Yes, subject to the equipment type and condition confirmed when service is scheduled.
Verified Google reviews
What local homeowners say about garage heater service & installation
4.9from 637 Google reviews
Twenty real, non-repeating Google reviews selected for this heating/furnace/boiler slider.
My furnace went out and they came the next day. I had to replace it and they gave me a good price and installed the next day during the ice storm. They were kind enough to let me borrow a generator and a heater for the night so my pipes wouldn't freeze. They went the extra step for me. I would definitely recommend them!
I have been a customer for almost 10 years now and there is no other company I would trust with my Heating/Cooling/Water heater needs. Over the years I have purchased a Water Heater, new Furnace, and new air conditioner, never an issue. The team is professional, courteous, knowledgeable, and just really easy to work with. I have always had a service plan on my system and one of the great things is the longevity of the staff. I have had Tony as my service tech now for i would say 3 years in a row. There is something comforting about always seeing the same person year after year knowing that they not only know your system but they know you. Thanks Mchenry Heating and Thanks Tony
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