Casteel Heating, Cooling, Plumbing & Electrical
9th year as a Best Pick
certified company
Based on 700+ reviews
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Best Pick Guarantee
Verified License(s)
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9th year as a Best Pick Call
"As a four-time Top 25 Small Business of the Year winner, Casteel understands how to take amazing care of its customers. We were awarded The Best Contractor to Work For by The NEWS, an HVAC industry publication, and we were also awarded Trane's Titanium Club status in 2010."

John Hillis | Owner & President
Company Information
Services Offered
Casteel Heating, Cooling, Plumbing & Electrical replaces, repairs, and services all residential heating, cooling, plumbing, and electrical issues. The company also offers up-front pricing.
Casteel honors all manufacturers' warranties and offers labor warranties, extended warranties, and various warranties of up to ten years.
Company History
The company is family owned and operated and has been serving metro Atlanta since 1987. John Hillis is the current owner and president of Casteel.
The company is a North American Technician Excellence (NATE) Certified Contractor and a Trane Comfort Specialist and was awarded Trane's Titanium Club status in 2010.
Employee Information
According to John, all of Casteel's employees are industry trained, rigorously background checked, and regularly drug tested.
Areas Served
North Atlanta, Cherokee, Dunwoody/Sandy Springs, Gwinnett/East Metro, Roswell, Alpharetta, Johns Creek & Cumming, Cobb/Marietta
A selection of 700+ homeowner reviews:
“Casteel repaired our air conditioner. They came out super fast, and it was a busy time of the year. They were fast, efficient, and they fixed the problem. I'll give them an A+.”
“They did preventative maintenance on my air conditioner. I have a service contract with them. They were on time and educated me a lot on everything they did step-by-step. They were excellent.”
“We've been using Casteel, and they've been doing a great job. They serviced my air conditioner and heater. They show up on time, knock it out, and leave. I would absolutely recommend this company, and I'd absolutely give them an A+.”
“Everything was good. They replaced a fan motor on our air conditioning system. They were quick, and they got the job done in a day. I couldn't have asked for better service—A+.”
“We had quotes on everything, but the service they did was on our air conditioning. I liked their responsiveness and professionalism. I'd give them an A+.”
“Everything was good. They just did a tune-up for me on my HVAC. I liked that the experience was complementary. I'd give them an A+.”
“They did work for me several months ago. They did HVAC maintenance for me. They were very thorough. They get an A+.”
“They did heating and air work for me. They were on time. They did the job thoroughly. The technician that was there was friendly and professional. I'd give them an A.”
“They did A/C work. I was selling my house, and they did a refresh on the unit. They were just very professional and very knowledgeable. I'd give them an A.”
“They repaired an air conditioning unit. The technician was knowledgeable and friendly. I'd give them an A.”
“They did air conditioning work for me. I'd give them an A.”
“They did home air conditioning maintenance. The scheduling was easy, and they did what they said they were going to do. I'd give them an A.”
“They do a lot for me. They installed a new HVAC system. They fixed my plumbing. They've done some other work, including maintenance, follow-up, and stuff like that. They took care of everything. I'd give them an A.”
“They did HVAC work for us. The guy who came out was really knowledgeable and really straightforward with us. It was great. I'd give them an A.”
“The A/C is running great. They got it fixed after the circuit relay was blown. They came back, got it fixed, and set it back up so it's working correctly. I'd give them an A.”
“Casteel did work for me at the end of February. It was great. They did HVAC work for me. They were just friendly and efficient. I would give them an A.”
“They did a good job. They did heating and air conditioning work.”
“They did A/C work for me. They were on time, and they got it done. I'd give them an A overall.”
“They were very efficient. They came in and did what was expected, very quickly, and they treated our home with respect. They had their shoes covered and things like that. They did a pretty thorough examination of our systems and then provided me with a lot of information regarding them, so I found that to be a really positive experience. They were doing HVAC for us three weeks ago. I'd give them an A.”
“They did my air conditioning unit. I liked that they're very friendly. I'll give them an A.”
“They did routine maintenance on my HVAC system. They were on time, clean, worked, got in, got out, and did the job quickly. They get an A.”
“They did A/C and heating unit replacement. They were prompt and courteous in getting stuff done on time, so the customer service was great. I'd give them an A across the board.”
“I think they're great. They did a great job. They did HVAC work as part of a move-out a year and a half ago. They had to come in and touch up the air conditioning unit. They did exactly what they were supposed to do. It was easy, it was clean, and they were in and out. I'd definitely give them an A. They were great.”
“The work went well, and they replaced an A/C unit. The work was good quality, and they were polite and had good customer service. I would grade them an A.”
“Using Casteel's services was a positive experience. I would grade them A all the way. I have not had any trouble with them whatsoever. They've always been reliable.”
“Casteel was great. They were very good. They did the ductwork in our kitchen.”
“The experience was good. They did a service check for the heat. It was routine maintenance. I would recommend them to my friends and neighbors. I'd give them an A.”
“We like them very much, and we've stayed with them. We have a maintenance contract with them.”
“Casteel did some maintenance on my A/C unit. They were really organized in letting me know when the technician was going to be there. They did a great follow-up call as well; the communication was excellent. When the service technician got here, he helped me with my problem, explained everything, and was pretty fast. It was an all-around great experience. I'll give them an A. I have recommended them.”
“They put in a new A/C unit. It went pretty smoothly, just as they said it would. That was probably the best part. They were very professional. It's an A from us.”
“We started off with just the service for the summer, but they found a leak within the air conditioning system that had been created by another company. They took care of it, and I decided I would start a biannual check-up with Casteel. Also, talking with the lady who set up my service appointment was very positive. She certainly knew her stuff, too. I'd definitely give them an A+.”
“They did a system check. They came on time, they did what they said they were going to do, and they charged what they said they were going to charge, so I was happy. I'd give them an A+.”
“Casteel did work on our furnace over a year ago. They showed up on time, they wore booties in the house, and they were considerate about what we needed to be done. And they didn't give try to charge us extra. I'd give them an A.”
“They did heating and air work. They were on time, did a good job, and explained what they were doing. I'd give them an A.”
“They put in an A/C unit and redid some ductwork. I worked directly with the manager. They were polite and helpful. They were efficient, and they made sure I understood how things were done. There were no questions afterward. I'd give them an A.”
“Casteel was on time and courteous. I'd give them an A.”
“They changed the capacitor out on an outside unit. I liked their promptness. They were on time, very clean, respectful, and just overall a great service. I'd give them an A.”
“They were very nice and very kind. They checked our air conditioning out. It was good. The customer service was very good. I'd give them an A.”
“They did replaced some kind of component on my outdoor air unit. They showed up on time, and they did the work quickly. I'd give them an A.”
“We just had our yearly check done. They were courteous and efficient as always. The customer service answered my questions, and when I called, they made sure I had an appointment and stuck to it. I'd give them an A.”
“They checked out our A/C unit. I'd give them an A.”
“They did heating and air conditioning work. They were Johnny-on-the-spot. I'd give them an A.”
“They come out twice a year for service. They set it up for the cooling season. They also do the heating inspection. I'm very pleased with their work and very pleased with the people they send out. They're good folks. I'll give them all A's. I recommend them all the time.”
“They swapped out on one of the units about a year ago. They were on time and wore booties. I'd give them a A.”
“They installed a new furnace. They were prompt, they came right to the price they gave me, and they worked very hard to get everything approved and done for me. They were fast. I'd give them an A.”
“I had a great experience. They did electrical and A/C work. I would give them an A. I had no problem with them. I've used them twice already.”
“They did some electrical work. We were closing on our house, doing some punch list stuff, and they also serviced our HVAC system. I would grade it an A+.”
“They did work for me about three months ago. There were two services. One was for the electrical issues, the circuit breakers, and the other one was for air conditioning. I would grade them A+.”
“They did work for me. Everything was positive.”
“They fixed some device that we had problems with. I would grade it an A.”