Austell grew up where the railroad splits toward Birmingham and Chattanooga. Today Cool Mountain Air keeps its homes and businesses comfortable with honest, owner-direct service.
Austell owes its existence to the rails. The Georgia Pacific Railway put a depot here in the early 1880s, at the point where the lines to Birmingham and Chattanooga divide, and the city was incorporated in 1885 and named for railroad promoter General Alfred Austell. Most of the city sits in southern Cobb County, with a small piece reaching into Douglas County, and Sweetwater Creek winds right through it. Cool Mountain Air serves Austell from our base in Adairsville with family-owned service dating back to 1991.
Neighborhoods around downtown include older homes built long before central air was standard. Some have small attics, low crawl spaces or ducts that were added as an afterthought. Our high-velocity systems run small, flexible ducts through existing walls and ceilings. High-velocity is a specialty, and Austell is part of the territory where we provide it.
U.S. 78 carries traffic and commerce through the heart of Austell, lined with restaurants, auto shops, offices, churches and small industrial buildings. We provide commercial HVAC repair, maintenance and replacement for those businesses, and you'll reach the owner directly when you call.
Creek bottoms and low ground hold summer humidity, and that moisture makes a house feel warmer than the thermostat says. A properly sized system removes humidity as well as heat. In winter, a heat pump with dependable backup heat keeps the house comfortable through a hard freeze. Spring pollen means filters need changing more often.
Mike Swiger owns Cool Mountain Air, and he picks up when you call. He diagnoses the real problem, explains it in plain English and gives an up-front price first. We repair all makes, install Rheem equipment backed by our 100% satisfaction guarantee, offer 24/7 emergency service and handle water heaters, drains, gas lines and leaks. Call Mike at 706-331-0939.
From high-velocity systems for older homes to commercial HVAC and plumbing, here's how Cool Mountain Air serves Austell.
Honest AC repair on all makes and models, plus Rheem systems up to 20 SEER sized with a load calculation.
Gas and electric furnace repair and replacement, with gas connections handled in-house.
Heat pump repair and installation, plus ductless mini-splits for additions, garages and problem rooms.
Central air through small, flexible ducts for older homes, a specialty few contractors offer.
Repair, maintenance and replacement for local businesses, with direct access to the owner.
Water heaters, drain cleaning, gas lines and leak repair for homes and businesses.
Our customers keep pointing to the same things: honest answers, fair prices and work done right. Here's what a few of them have to say about Cool Mountain Air.
"Mike Swiger is an expert HVAC engineer. I hired him to install a smart thermostat but during installation, he found a completely different issue with my HVAC and fixed it for a very reasonable rate. It was scary because I had not even lived in this house for a month and was worried that I would have to get a whole new system. He's very knowledgeable and explains everything going on with the system and how he fixed it in a way that I could easily understand. I highly recommend Cool Mountain Air to anyone for their heating and cooling needs for their home."
— Bobby Semendy
Google Review
"Mr. Mike gave us excellent service. He fixed our heat last winter (2024). He fixed our AC unit this summer (2025) and again was professional and transparent!! Thank you so much. We would recommend him to everyone!"
— Rebekah
Google Review
"Mike was a real professional. He arrived on time. He was very courteous and talked me through what he was doing. I could tell he loved his job and strove to give the best service possible. I highly recommend Cool Mountain Air for you HVAC needs."
— John Shepherd
Google Review
Cool Mountain Air is family-owned and based in Adairsville, serving Austell and nearby communities in south Cobb and Douglas counties.
Answers to the questions Austell-area homeowners and businesses ask us most.
Yes. We serve Austell, including the portion in Douglas County, from our base in Adairsville. Austell customers can call Mike at 706-331-0939, no call center involved.
Yes. We respond to heating and cooling emergencies around the clock, including nights, weekends and holidays.
An oversized or poorly maintained system can cool the air without removing enough moisture. Mike will check sizing, airflow and coil condition, and our indoor air quality options can help too.
Yes. We repair, maintain and replace systems for offices, restaurants, shops, churches and light industrial buildings.
Yes. We repair all makes and models, and we install Rheem equipment as a Rheem Authorized Dealer.
Yes. In Austell, our plumbing work covers water heaters, drain cleaning, gas lines and leak repair.
Family-owned in Adairsville and serving communities across Northwest Georgia and the northwest Atlanta metro. Click any town to learn more.
Family-Owned Since 1991 • Georgia Licensed • Rheem Authorized Dealer • 24/7 Emergency Service