Casteel Heating, Cooling, Plumbing & Electrical
9th year as a Best Pick
certified company
A
rated
Based on 700+ reviews
Our Certification Process
Best Pick Guarantee
Verified License(s)
Verified General Liability Ins.
Verified Workers' Comp
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.
Warranty
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.
Distinctions
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.
Licenses
CR006509
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.”
“It was A/C work. They really kept the job site clean. I would grade it definitely a 9 out of 10.”
“It was very positive with the heating and air. I had no complaints, and I would recommend them.”
“The guy was very thorough in checking everything, and they sent the same guy back out to recheck when I had problems. The guy came back out and fixed it, so that was good. I would grade it an A.”
“They just replaced some parts for us on the heater. I'd grade it an A+.”
“They're my maintenance people for our heating and air. I'd give them an A.”
“They put in a new heating and cooling system. I'd give them an A+.”
“I had a wonderful experience with Casteel. Our air conditioning and furnace got hit by lightning. They came and got everything taken care of for us, and it was actually wonderful and very professional. I'd give them an A+.”
“They repaired our air conditioner. I would give them an A.”
“They replaced an air conditioning unit and a furnace. I'd grade them A+.”
“I've used Casteel multiple times. They've been fantastic, and I recommend them all the time. Two years ago, we had a major upgrade which involved putting a brand new system up in our attic for the upstairs instead of the one system in the basement feeding both the first floor and the upstairs. We kind of split things off. That system has been perfect. They had to do all that work as well as make some modifications to the one in the basement. They had to do some zoning so that we have heating and air conditioning in the basement as well as the first floor, all working off the same unit. I've got two woodworking shops on the property, and they put in some mini-splits in each of those units, too. I'd give them an A+. They're excellent.”
“Casteel takes very good care of our two HVAC units. They are super people to work with. They're always on time. They're there when they say they're going to be there, and they clean up after themselves. They don't make a mess. I can't say enough about them. They're an A+.”
“I really like my heating and air guys from Casteel. They are wonderful. They put in two furnaces and two air conditioners. They're definitely an A.”
“We had Casteel replace our entire heating and cooling systems for both floors, and the folks that did it did an excellent job for us. They were rated in Best Pick Reports, and I say they earned an A grade.”
“It's easy to get an appointment. They come when they say they're going to come, and they resolve the issue. The job was a regular check on our air conditioning to make sure that it was functioning properly before the cooling season. We've been using them for years, and I would give them an A.”
“They were on time and did the work that they promised they would do, so that's pretty much all a consumer can ask for. They replaced the air conditioning unit for our main floor and basement. The entire system was pretty much redone. They installed a new unit, and then they fenced it in. They followed up pretty much every six months with quality checks and that sort of thing for the first year, so that was a good bonus. We've had it in here for probably a year and a half to two years. It's a much better unit. The one before was like a 20-year-old unit. I'd give the highest marks to Casteel; they've been great.”
“I use Casteel, and they're pretty good. They did a good job putting in a whole system. The customer service has been great. They back up what they say, and I've never had to call them back. They've been pretty legit. I had one minor issue, but they came back out and fixed that pretty quick. I'd say that they're an A+.”
“I think a blower was broken, and Casteel fixed it. I'd give them an A+.”
“Casteel did good work—I like them. I liked their professionalism. They did expansion valves and worked on the thermodynamics of a condenser. I think they showed up on time, and they were well groomed. They had clean shoes, and they laugh at all my jokes. We'll give them a solid A grade.”
“The ease of the work was good. They were in and out with no problems. They replaced some water heaters, and they repaired some HVAC units for me. I'd put them down for an A+.”
“I liked their timeliness and the consistency of the work. We had a big leak, so they checked our heating unit. I chose them because of word of mouth and because they had serviced my friends. They were just very much on the spot; it was quick service. I believe that they were honest and reliable. I would say that they're definitely an A+. They went above and beyond.”
“Casteel rocked. The people who worked on my heating and air did a really, really good job. They fixed my thermostat and the heater. They worked on the thermal coupling, too. I'd give the work an A. They did good work, and the guy was nice.”
“They installed my furnace, and they maintain it. They do a great job. I had a problem maybe a year after we installed the furnace. I didn't know what I was doing, so the owner of the company came out and worked with me. I think I've worked with them for four or five years. They get an A+ from me.”
“I thought they did everything in a timely manner, and it works, so that's a good thing. They replaced one of our A/C units. I'd say they were prompt and responsive. I can't think of any issues, so I guess I'd give them an A+.”
“The people that came to the house to look at the vents and stuff were always very friendly and professional. They did our service contract for the air conditioning and heat. Casteel is A+.”
“Casteel serviced my A/C and did a great job. I'd give the company an A+.”
“They were quick, professional and knowledgeable; they let me know about the product. If I remember correctly, they installed my thermostat. I'd give them an A+.”
“I use Casteel, and they've been very good to deal with. We've used them for four or five years now. From a service standpoint, we just use them for seasonal maintenance—filters and checking out the systems. I did buy a new system from them this last spring or early summer. We replaced one of our systems that was faltering, and they seemed to do a very good job. I have no complaints. I'd give them an A grade.”
“Casteel comes out twice a year, and they do a great job for me. It's been a good relationship, so I think the company has earned an A.”
“Casteel is always on time, and their technician was very professional and knowledgeable. During wintertime, it wasn't warm in the house. Something was not working well, but he was able to solve all the issues that we had with the system. He did everything. I'd give them an A.”
“They're fine. They've done really good work. They show up when they're supposed to, and they get things done. They tell you what's wrong, they fix what's wrong, and they're done; I've had no problems with it. This last time was A/C work, but they've done electrical, and they've done plumbing inspections, too. I've been using them for a year, and I'd say that they're an A.”
“I've had a couple of services with Casteel. They did my HVAC, and they also came in for electrical repair. They were great. I think they have good customer service, and they're on top of the repairs. All in all, I thought I thought it was a positive experience. For the HVAC, they basically did repairs. One unit was not working, so they repaired that. When they came in for the A/C repair, they noticed something was not safe in the attic due to a splice, so they came to fix that and do a whole-house inspection. I didn't have any issues with the work that was done. I've worked with them in the past. I think they're in Best Pick Reports, too, and that's how I called them out here. I'd give them an A.”
“We use Casteel for our heating and air system. I've never had any problems with them. I like them so far, and I'm very pleased with their services. They just do normal maintenance. They do a tune-up in the spring and add any type of coolant to the system; they've done that a couple of times. They check in the fall, too, right before we turn on the furnace. I would give them an A rating.”
“Casteel has installed an upper-zone unit in my house, and this winter, they replaced a heating and air conditioning unit for my main level. They're working out well. They're an A to me.”
“For heating and air, I've used Casteel. I would grade them as an A.”
“The only heating and air service that I've used is Casteel. They installed a system for me, and it was fine. I'd use them again. They were an A.”
“We use Casteel. They're an honest company, and all the people who do the work for them are background checked and are employees for them, not a third party. They do regular maintenance, and we bought two furnaces and two A/C units from them. I'd give them an A.”
“We like Casteel. I like that they had good rates. They did a good job fitting a new air conditioning unit on our existing furnace. They were able to patch it together without us having to buy a whole new unit. I'd give them an A.”
“Casteel came when they said they would. They checked my air conditioner, told me what I needed, and took care of it. Somebody may have told me about them, and that's how I heard about them. I'd give them an A.”
“Casteel just put in a heating and air conditioning unit for me. Everything went well—they were on time and prompt. I liked their customer service when they came out. It was good, so I had no complaints. I'd give them an A. I was happy with the service.”
“Casteel did some work for me. They serviced the heating and air. It had to be a positive experience because I always remember when it's negative. I'd say they're an A.”
“They're reliable. They replaced a couple of heating and air conditioning units for us, and then they did the routine yearly maintenance. I would recommend them. They're an A.”
“They were prompt and did what they said they were going to do. They repaired things and replaced one of our heating units. My husband chose them, but I would give them an A.”
“They did HVAC maintenance. They showed up on time. They were friendly and polite, and they did what they said they would do. I was happy. I chose them because a friend recommended them. They earned an A from me.”
“Casteel did an install for us a couple of years ago. The first time we ever called them out, they came out after hours when nobody else would. That was really helpful for us because our air conditioning had gone out at the time. So, them coming out then was really good. We switched to them from another company because of that. They did an install of our upstairs A/C system, and they've done our semiannual maintenance as well. I'd give them an A.”
“I had a good response from them. The technician came to service the air conditioner, and I liked the service he provided. I've been using them for the last six years or so. I'd give them an A.”
“We use Casteel, and they're pretty good. They're really good with follow-up and customer service. They do the maintenance on our heating and air twice a year. I think I heard about them through Best Pick Reports. They're an A-grade company.”
“Casteel has done general maintenance on my air conditioning and my furnace. They've been very responsive when I've called them to do something. They always come out, which I appreciate. They've just done a good job. I think I actually heard about them in Best Pick Reports.”
“They were very polite and very conscientious, and I enjoyed working with them. They checked a unit. I chose them because they were recommended. I'd give them an A.”
“I've used Casteel multiple times, and they've been fantastic. I recommend them all the time. Two years ago, we had a major upgrade, which involved putting a brand-new system up in our attic. That system has been perfect. They had to do all that work as well as make some modifications to the one in the basement. They're excellent—A+.”
“Casteel takes care of our units, and they are just super people to work with. They take very good care of our central heating and air conditioning, and they're always on time and there when they say they're going to be there. They clean up after themselves, and they don't make a mess. I can't say enough about them—they're an A+ company.”