We service a wide range of systems, including central air conditioners, ductless mini-splits, furnaces, heat pumps, and smart home comfort systems. If it heats or cools your home, our technicians are trained to handle it.
Heating and Cooling Systems Designed for Your Home
We’ve been your trusted HVAC partner for nearly 40 years
24/7 Emergency Services
Financing Options Available
Always On-Time, Guaranteed
Same-Day Service and Next-Day Installation
Casteel handles all the systems that keep your home comfortable
From central air to ductless mini-splits, furnaces, and heat pumps, we’ve got the expertise to install, repair, and maintain every type of cooling and heating system. No matter what you need, our team has the experience to keep your home comfortable year-round.
Air Conditioning Systems and Units
Efficient, whole-home cooling that keeps your family comfortable during the hottest days. Our team can handle installations, routine maintenance, and repairs of all central air systems, ensuring even cooling, optimal airflow, and energy efficiency so your home stays comfortable without surprises.
AC Repair Services
AC Replacement and Installation
AC Maintenance
Ductless Mini-Splits
Flexible, zoned heating and cooling solutions for homes without traditional ductwork. We install and service ductless mini-splits to provide precise temperature control in each room, reduce energy costs, and offer quiet, unobtrusive comfort. Our team can help you choose the right system for your space and maintain it for peak performance.
Ductless Mini-Split Services
Furnaces
Reliable heating when temperatures drop, with energy-efficient options for every home. From furnace repair to full system replacement, we ensure your heating system operates safely, efficiently, and consistently. Our experts handle everything from gas and electric furnaces to advanced heating systems that maximize comfort while lowering energy bills.
Furnace Repair Services
Furnace Replacement and Installation
Furnace Maintenance
Heat Pumps
Dual-purpose systems that heat and cool efficiently, ideal for moderate climates. Our technicians can install, service, and repair heat pumps to provide year-round comfort while saving energy. We ensure your system delivers efficient heating in winter, cool air in summer, and smooth transitions between modes, keeping your home comfortable no matter the season.
Heat Pump Repair Services
Heat Pump Replacement and Installation
Heat Pump Maintenance
No heating and cooling system is too complex for our team
We handle installation, repair, maintenance, and upgrades for every type of heating and cooling system, so you can rest easy knowing your home is in capable hands.
See why customers trust Casteel for heating and cooling services
Casteel Air handles every system with care
Since 1987, Casteel has been keeping homes across the greater Atlanta area comfortable with dependable heating and cooling solutions. We’ve worked with every type of system common to Georgia homes, from central air and heat pumps to ductless options designed for flexible comfort. With deep local experience and a commitment to honest service, we make it easy to trust your home systems to our team
Read expert heating and cooling tips from Casteel
Questions about the systems we service?
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Yes. Our team services both older, traditional systems and newer high-efficiency models. We understand how legacy systems work and stay up-to-date on the latest technology, so you get expert care no matter the age of your equipment.
In many cases, yes. We install and integrate smart thermostats, zoning controls, and other connected devices to give you more precise control, improved efficiency, and added convenience.