Graystone Comfort
Heating and Cooling Services in Gurnee, IL
When your furnace quits in January or your AC gives out in the middle of August, you need someone who shows up and gets it right the first time. We're a Lake County company — a short drive away, not an hour up from the city.
Graystone Comfort
Heating and Cooling Services in Gurnee, IL
When your furnace quits in January or your AC gives out in the middle of August, you need someone who shows up and gets it right the first time. We're a Lake County company — a short drive away, not an hour up from the city.
Graystone Comfort works in Gurnee regularly. We know the subdivisions off Washington Street and Grand Avenue, we know which neighborhoods sit low enough that a finished basement means thinking carefully about where the water heater goes, and we know what twenty-five-year-old equipment in a 1990s Warren Township build looks like when it's finally ready to be replaced.
We're a family-run, woman-owned company based in Lake County — close enough that a no-heat call in Gurnee gets answered the same day, not scheduled for next week.
Our Services
HVAC Installation, Maintenance & Repair in Gurnee
Heating & Furnace
Furnaces, boilers, and heating repairs throughout Gurnee. A lot of the housing stock here went up between the late 1980s and early 2000s, which means a great many original furnaces are now well past the 20-year mark. We'll tell you honestly whether yours has another season in it.
Air Conditioning
Whether your AC stopped cooling entirely or just can't keep up with a humid August afternoon, we'll diagnose the actual problem instead of guessing. Repairs, replacements, and spring tune-ups across Gurnee.
Water Heaters
Gas, electric, and tankless — repair and installation. If your water heater sits in a Gurnee basement, ask us about elevated installation and pan-and-drain setups. It's worth thinking about before you need to.
Indoor Air Quality
Damp summers, bone-dry winter air, and basements that never quite dry out. Humidifiers, dehumidifiers, filtration, and duct solutions suited to how homes around here actually behave.
Commercial HVAC
Gurnee has significant retail, hospitality, and warehouse space along the I-94 and Grand Avenue corridors. We service and install commercial systems for offices, storefronts, and light industrial buildings.
Emergency Service
Breakdowns don't wait for business hours. Call us any time.
Learn more ->
Call us at 224-933-4305 today!
Heating and Cooling Services
What we see in Gurnee homes
Aging systems in 1990s and 2000s subdivisions
Aging systems in 1990s and 2000s subdivisions. Gurnee grew fast through those decades, and the furnaces and air conditioners installed with those homes are reaching the end of their service life more or less all at once. If your equipment is original to the house and the house is twenty-five years old, you're not really looking at a repair question anymore — you're looking at a timing question. We'd rather help you plan a replacement in October than perform one in an emergency in January.
Basements and moisture
Portions of Gurnee sit in and near the Des Plaines River corridor, and homeowners in those areas already know what a wet spring can mean. If your furnace, water heater, or air handler lives in a basement, elevation and placement matter more here than they do in a lot of towns. We can look at how your equipment is set up and tell you plainly whether it's exposed.
Humidity control
Summers here run humid, and an oversized air conditioner makes that worse rather than better — it cools the air fast, shuts off before it removes much moisture, and leaves you with a house that's 72 degrees and clammy. Proper sizing matters, and a lot of replacement systems get sized by rule of thumb instead of an actual load calculation of the home.
Permits
The Village of Gurnee requires permits for furnace, air conditioner, and water heater replacement, and inspection is part of the process. We pull the permit and handle the inspection as part of the job — it isn't something you should have to chase down yourself.
Utility rebates
Both the electric and gas utilities serving Gurnee run efficiency rebate programs on qualifying high-efficiency equipment. We'll tell you what your replacement qualifies for before you commit to anything.
Call us at 224-933-4305 today!
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 Gurnee 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.
Flexible Financing
Comfort now, payments over time
Get the system your home needs now, and pay over time. Prequalifying takes just a few minutes.
Our Service Area
Nearby HVAC Service Areas
Lake County is home base, and we take calls throughout Northern Illinois — Libertyville, Grayslake, Mundelein, Vernon Hills, and beyond.
If you're not sure whether we cover your area, just call. The answer is probably yes.
FAQ
Common Questions About Heating and Cooling Services
Do you offer emergency HVAC service in Gurnee?
Yes — 24 hours a day, seven days a week. Call 224-933-4305.
How quickly can you get to a no-heat call in Gurnee?
We're based in Lake County, so Gurnee is a short drive for us. Same-day service is typical for heating emergencies during the winter.
Do I need a permit to replace my furnace in Gurnee?
Yes. The Village of Gurnee requires permits for HVAC equipment replacement, and we handle the permit and the inspection as part of the installation.
How often should I service my air conditioner?
Once a year, in the spring, before cooling season starts. We wrote about why Northern Illinois is particularly hard on cooling equipment in How Often Should You Service Your Air Conditioner in Northern Illinois?
How do I know whether to repair or replace my furnace?
Age, repair frequency, and rising energy bills are the main indicators. We covered the warning signs in 7 Signs Your Furnace May Be About to Fail.
Why is my energy bill so high?
Often it's the HVAC system working harder than it should — a clogged filter, leaking ducts, or equipment past its efficient life. We walked through the common causes in Why Is My Energy Bill So High? Common HVAC Causes.