Yes. Unexpected heating issues can leave your home uncomfortable or unsafe. 24/7 emergency services are available to get your system back online quickly when you need help outside regular hours.
Heating Services to Keep Your Home Warm and Comfy

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
We’re experienced in all heating system makes and models
At Casteel, we believe that every person deserves the comfort of a warm home. If you start experiencing trouble with your heating system, you can rely on us for fast, affordable service for any heating problem.
With decades of experience in the HVAC industry, our team has the experience and training to address all your heating system service needs. To receive help with a defective heating system, give our team a call or book online.
We expertly repair, install, and resolve heating issues
When you choose us, we will arrive on time, respect your space, and provide an upfront flat rate fee that you can trust. This is how we earn the respect of our customers, and it’s why we are one of the best-rated heating companies in Atlanta, Marietta, Alpharetta, Roswell, Kennesaw and surrounding areas.
Heating Repair Services
If your heater is making strange noises, failing to warm your home, or not turning on at all, our expert technicians will diagnose and fix the issue quickly. We service furnaces, heat pumps, and more to restore reliable heat when you need it most.
Thermostats and Controls
Ignition, Airflow, and Heat Distribution Issues
No Heat and Emergency Heating Repairs
Heating Replacement and Installation Services
When repairs aren’t enough, we can help you upgrade to a newer, more energy-efficient system. We guide you through choosing the right option for your home and budget, then handle the replacement with precision and care.
Programmable Thermostat Replacement & Installation
Standard Thermostat Replacement & Installation
Heating Maintenance and Tune-Ups
Annual maintenance helps your system run efficiently, reduces the risk of breakdowns, and extends equipment life. Our comprehensive tune-ups include safety checks, cleaning, and performance assessments to keep your system ready for cold weather.
We offer heating maintenance and tune-ups for the following and more:
Emergency Heating Services
Heating issues don’t always happen on a schedule. Emergency services are available to get your system back online when unexpected problems threaten your comfort or safety.
Our technicians can carry out services for a wide range of heating systems
We install heating equipment from Daikin and can repair all major brands, including Carrier, Trane, York, Bryant, Rheem, and many more. We proudly offer same day service and next day installations on:
Whatever heating problem you have, we are the team to fix it.
Get fair, upfront pricing and a money-back guarantee with Casteel
Our heating specialists make it their responsibility to help you take full control of your indoor climate. If your house feels cold throughout the winter months, our contractors will provide comprehensive heating solutions for residents in areas of Georgia including Athens, Atlanta, Mableton, Dalton, Smyrna, and Marietta.
With our superior workmanship, honest pricing, exceptional customer service, and financing options, there is no better team. We believe in our heating services in Athens, GA to Hiram, GA, and everywhere in between - so much so that we offer a money-back guarantee. It is our word that your system will not break down during the heating season in which we have performed our inspection and tune-up, or your tune-up is free!
Consider using our heating services if you live in the local area. Give our professionals a call or book online to schedule a maintenance appointment for your heating system.

Read expert heating tips from Casteel
Questions about our heating services?
Not seeing what you’re looking for? Give us a call, and we’ll happily help.
We service all major residential heating systems, including:
If your heating system is making unusual noises, struggling to heat your home evenly, running constantly, or causing high energy bills, it may be time to have it inspected. Addressing small issues early can prevent bigger, more expensive problems later.
A heating system tune-up includes:
Yes. We offer flexible financing options designed to make servicing your heating system easier on your budget. We partner with reputable lenders to provide a range of plans and fast approvals, so you don’t have to wait to get the comfort your home deserves. Our team can walk you through all options and help you choose a financing plan that works best for your budget.
We provide heating repair, replacement, installation, and maintenance services throughout Georgia, serving homeowners in Lawrenceville, Woodstock, Canton, Johns Creek, and nearby areas. View our Service Areas page for full coverage.
