Graystone Comfort
Heating and Cooling Services Lake County Trusts
When your furnace quits or your AC can't keep up, you need someone who shows up and gets it right the first time. That's the whole job, and it's the only one we're after.
Graystone Comfort
Heating and Cooling Services Lake County Trusts
When your furnace quits or your AC can't keep up, you need someone who shows up and gets it right the first time. That's the whole job, and it's the only one we're after.
Our Services
HVAC Installation, Maintenance & Repair in Lake County and Northern Illinois
Heating & Furnace
Furnaces, boilers, and heating repairs across Gurnee, Libertyville, and beyond — when it quits in January, it needs fixing today, not next week.
Air Conditioning
Whether your AC stopped cooling or just isn't keeping up with a lakefront summer, we'll figure out what's wrong and fix it.
Water Heaters
No hot water, a leaking tank, or just time for an upgrade — we repair and install gas, electric, and tankless systems throughout Lake County.
Indoor Air Quality
Dry winter air, dusty vents, humidity swings off the lake — more of a Northern Illinois reality than people realize. We can help.
Commercial HVAC
Offices, retail, warehouses — we service and install commercial HVAC systems across the Lake county area.
Emergency Service
Breakdowns don't stick to business hours. When something goes wrong, call us.
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Call us at 224-933-4305 today!
Flexible Financing Available
Get the system your home needs now, and pay over time. Prequalifying takes just a few minutes.
Why Choose Graystone Comfort?
A Different Kind of HVAC Company
We're a family-run, woman-owned business, and one of the very few like it in Lake County. Every job gets the same attention, whether it's a furnace tune-up in Grayslake or a full system replacement in Lake Forest.
Our founder spent twenty years in the trades before starting this company — working her way from technician to operations manager at one of the Chicago area's largest HVAC firms. She knows what good work looks like, and what it takes to earn a neighbor's trust and keep it.
100% Satisfaction Guarantee
Fully Bonded and Insured
Decades of HVAC Experience
Graystone Comfort Reviews
Hear It From Our Customers
"I wish all contractors were this good!"
"Graystone is the most professional HVAC company I've ever worked with. They installed my Ecobee and replaced my humidifier. I couldn't recommend them more. I wish all contractors were this good!"
Greg A.
"I would recommend them to anyone."
"I have used Graystone Comfort for AC and heater maintenance. They are very professional and don’t mind answering your question, even a text away. I would recommend them to anyone."
Ariana V.
"They will be the only people we call from now on."
"We had air conditioner issues over the holiday weekend. Nichole was amazing came over and trouble shot what we needed and was able to fix it and give us a reasonable quote for a new air conditioner and furnace. They will be the only people we call from now on."
Lisa S.
24/7 Emergency Service
When your heater breaks down on the coldest night of a Lake County winter, or your AC gives out in the middle of July, we're ready to restore your comfort — any time, any day.
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