We’ve had McHenry Heating and Air come out for the last couple years for maintenance, troubleshooting, new equipment, etc. Now that we’ve had nothing but positive experiences with them, it was a no brainer to join their maintenance plan. This time, Chris came out for a fall inspection and was prompt, very friendly, and cleaned up afterwards. Great service!
Heating maintenance
Heating System Maintenance
A fall check creates time to address small issues before the equipment is carrying the full winter load.

637 reviews
What we handle
Service built around the cause—not just the symptom.
Preseason furnace and boiler maintenance focused on safe, reliable winter operation.
Safety and control checks
Combustion or hydronic operating review
Filter, blower and airflow inspection
Condition report and next-step guidance
The McHenry method
Diagnose carefully. Explain clearly. Verify completely.
Measure before recommendingPerformance, safety and system conditions establish what is actually happening.
Make the tradeoffs visibleWhen more than one path makes sense, you should understand the cost, life and comfort implications.
Test the completed workThe repair or installation is checked in operation, then reviewed with the homeowner.
Straight answers
Common questions about heating system maintenance.
Every home and system is different. These answers help you prepare; an on-site diagnosis confirms the right next step.
Ask another questionWhen should heating maintenance happen?
Late summer or fall is ideal, before the first sustained cold weather.
Do boilers and furnaces get the same tune-up?
No. The safety and operating checks are specific to the equipment and how it distributes heat.
Can I combine heating and cooling maintenance?
Membership options can make recurring care easier to plan; ask what is included in the current program.
Verified Google reviews
What local homeowners say about heating system maintenance
Twenty real, non-repeating Google reviews selected for this maintenance slider.
I purchased and installed a new furnace and A/C system with a smart thermostat during the pandemic and have enjoyed trouble-free operation ever since. It is super efficient and quiet. I subscribe to their maintenance plan which has proven to be of great value.<br>During the latest maintenance visit, their tech KC Allen tweaked the settings which made an improvement in cycle times and overall operation. Now it's even better!<br>I have been pleased with every interaction involving McHenry Heating & Air.
I used McHenry Heating and Air for the replacement of our furnace and A/C. I'm on the maintenance plan, and regularly receive great service. Chris serviced my A/C today. He was very friendly and respectful.
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