Graystone Comfort
Air conditioning installation and replacement in Lake County, IL
A new air conditioner is a big purchase — and the installation matters more than the brand. We size it right, install it carefully, and back it with our 100% satisfaction guarantee.
Graystone Comfort
Air conditioning installation and replacement in Lake County, IL
A new air conditioner is a big purchase — and the installation matters more than the brand. We size it right, install it carefully, and back it with our 100% satisfaction guarantee.
AC Replacement
Is it time to replace your Air Conditioner?
System age
12–15+ years old means borrowed time — and extra electricity while it lasts.
Frequent repairs
When a repair bill approaches half the cost of a new system, replacement usually wins.
Uneven cooling
Hot rooms upstairs, cold spots down — often a system that was never sized right.
Rising energy bills
New systems are dramatically more efficient than units from even ten years ago.
R-22 refrigerant
R-22 (Freon) is phased out, making repairs on older systems increasingly expensive.
Not sure? We'll give you a straight assessment — including "keep it running another year or two" if that's genuinely the right answer.
Call us at 224-933-4305 today!
Air Conditioner Installation
How our installation process works
Assessment and sizing
We measure your actual home and run a proper load calculation. Bigger is not better — correct sizing is the foundation.
Clear options, real prices
A few systems at different price and efficiency levels — including the one we'd put in our own house.
Professional installation
Installed, tested under load, verified for charge and airflow — and your home left as clean as we found it.
Follow-through
We register your warranty and stay a phone call away. You're a neighbor now, not a closed ticket.
Central air, mini-splits, and heat pumps
Most Lake County homes are a fit for conventional central air, but not all. Older North Shore homes without ductwork are often perfect candidates for ductless mini-splits, and heat pumps handle both cooling and heating efficiently. We install all three and recommend what actually fits your house — not whatever's sitting in a warehouse.
Flexible Financing
Comfort now, payments over time
A new AC shouldn't have to wait for a windfall. Prequalifying takes just a few minutes — so you can get comfortable now and pay over time.
Our Service Area
AC installation throughout Lake County and Northern Illinois
Graystone Comfort installs and replaces air conditioners across Gurnee, Libertyville, Lincolnshire, Vernon Hills, Mundelein, and Grayslake, plus North Shore communities like Lake Forest, Highland Park, and Deerfield.
Lake County is home base, but we take installation projects throughout Northern Illinois — if you're not sure whether we cover your area, just call. The answer is probably yes.
FAQ
Common Air Conditioner Installation Questions
How much does a new AC cost?
It ranges widely based on your home's size, the system's efficiency rating, and whether ductwork needs attention. That's why we do free in-home quotes — you'll get a real number for your house, not a teaser price that doubles later.
How long does installation take?
Most straightforward replacements are done in a day. Installations involving ductwork modifications or new equipment types may take longer — we'll tell you upfront.
What size air conditioner do I need?
That's exactly what the load calculation determines. Rule-of-thumb sizing ("one ton per 500 square feet") is how homes end up with badly matched systems. We measure; we don't guess.
What SEER rating should I choose?
Higher SEER2 ratings mean lower operating costs but a higher purchase price. For our climate — heavy summer use, but a shorter cooling season than the South — there's usually a sweet spot, and we'll show you the payback math for each option.