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Miller's Area Heating

Miller’s Area Heating and Air Conditioning was founded in 1948 by the Miller brothers. We are proudly still excelling in our family-owned and operated business located in downtown Grayslake, IL. Our highly skilled HVAC technicians are NATE-certified and consistently take courses for continuing education to learn about state-of-the-art products and techniques in the heating and cooling industry which allows us to better serve our Lake County customers.


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Customer Testimonials

We love hearing from our customers! If you've had us work on your HVAC system we would love to hear from you too.

Air Conditioner Maintenance in Grayslake, IL 60030

“Tech did a good job and answered all our questions.”

– Rich A.

Air Conditioner Installation in Round Lake Beach, IL 60073

“I was originally told that installation would happen on Friday @ 10:00 a.m. CST; however, due to one guy calling in sick and another tech working another job, I didn't get assistance until Noon'ish. Paul (I think that was his name) was amazing – he did everything by himself and got the job done. He was pleasant and I made sure he had bottled water since it was so hot outside! He wore his booties, too. Thank you!!”

– Mike S.

Air Conditioner Repair in Grayslake, IL 60030

“Excellent customer service, diagnosed and fixed problem by replacing the capacitor, took off top of A/C unit per my request and assisted me in cleaning out a mouse den that was built inside the A/C unit. Thanks for the great work and service. Sincerely, Lowell B. Raven, CPA”

– Lowell R.

Our Most Recent Articles...

Woman blowing nose due to allergy symptoms

Does Your AC Help With Allergy Symptoms?

July 2, 2019

Seasonal allergies are a burden for many. Air conditioners, or ACs, when properly maintained, can noticeably reduce symptoms for allergy sufferers. Air filters catch pollen, dust, and other irritants, producing higher-quality air. Air conditioners also act as humidity regulators, easing allergy symptoms. Miller’s Area Heating & Air Conditioning is proud to help you here in Libertyville, IL, breathe easier.

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Cartoon image of a thermostat asking if you should set it to on or auto.

Video – Should I Set My Thermostat to ON or AUTO?

June 25, 2019

On most thermostats, you can choose between On or Auto for your fan setting. On tells your HVAC unit to run its fans all the time, even when the air isn’t being heated or cooled. Auto means the fan only runs when your air is being treated. It might be a good idea to try…

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Does My Air Conditioner Eliminate Mold?

June 10, 2019

At Miller’s Area Heating, we’re often asked, “Do air conditioners kill off mold?” This is a common misconception.

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Need HVAC Service?

Contact the experts at Miller's Area Heating.

Call us at 847-223-0211!

We Service All Brands

We service all HVAC brands.

We Service All Brands

We service all HVAC brands.

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