Casteel Heating, Cooling, Plumbing & Electrical
“Ryan was able to complete a maintenance service and explain details regarding the HVAC unit!”
Best Heating & Air Conditioning / HVAC In Lawrenceville
Below are the best 21 HVAC services in Lawrenceville picked by BestProsInTown
21 businesses
Wall Heating & Air Conditioning, Inc.
“Our upstairs HVAC unit stopped working and we called Wall to come fix it. They were courteous, professional, and very responsive. When Kris came out and identified the problem, he told us that the part we needed was on back order from the manufacturer, but he went above and beyond to find the part we needed. I highly recommend them.”
Cool Masters Services
“Our AC unit died out of no where. We called Cool Master and their team was amazing. They sent a technician out same day to look at our unit and tell us what was wrong. The next day Eric came to our house to tell us what we needed done and wrote us up a quote. We had AC again with in days. Very fast, very reliable. Would recommend 100 times over. The office team that answers the phones were awesome also. Professional and kind. We've had put unit for about 3 weeks now and it's worked great!”
Your AC Company
“Absolutely stellar experience across the board. These guys know how to get it done and truly care about your a/c getting back on asap. You’ll be glad you chose this company!”
TE Certified, Electrical, Plumbing, Heating & Cooling
“Mike is an unequivocal ROCKSTAR!!! His character and relatability inspire trust, confidence, and gratitude. He's so awesome - water crisis customers feel a little bit better about their situation just because they got to meet him and better understand their water systems and predicaments from an expert. He is a tremendous asset to TE Certified because he ensured I was a fan of your company before he left. Mike is a unicorn - he posesses a rare combination of subject matter expertise, unmatched people skills, and cares deeply about his job. I can't think of a better ambassador for TE Certified - and I'm truly grateful for his help today!”
Alpha Heating and Air LLC
“Samir and Alpha have taken care of my homes for years. Very fair pricing and best service you can find!”
Infinity Performance Heating and Cooling
“Arturo helped me get the HVAC system replaced for my elderly parents. The technicians were sent out promptly and took the time to make sure everything was working properly before they left. They were professional and courteous. I highly recommend Infinity Performance!”
Thermal Heating & Air Conditioning Repair of Lawrenceville
“He was courteous, communicative and on time. Did a great job. Reasonable price. Would definitely recommend.”
Superior Duct Cleaning, LLC
“Very professional and efficient. I was incredibly pleased with how the technicians worked quickly and with care. They also took the time to answer my questions and educate me on several home improvement projects. We definitely recommend and will continue to use Superior Duct Cleaning, LLC from now on! Thank you”
Americool Air Conditioning & Heating
“We highly recommend AmeriCool for your HVAC work. Michael came to fix our heater the day after I called! He was on time and went right to work to diagnose the problem. His prices are fair and he is very pleasant too. You can’t miss if you use AmeriCool.”
Varmen Heating and Cooling
“Varmen team are on point. They knew what was going on with my hvac and got it resolved. Highly recommend ?”
Billy Butler Heating & Air Conditioning
“Have known Billy Butler for many years. I lost contact after moving from Lawrenceville. But reconnected when I was in the need for a new furnace and AC unit. His 5 star service has not changed. It was good to see his son working along side of him learning a trade. Both Very professional and a job well done.”
Ac Mechanical Heating & Air Conditioning LLC.
“They are the best for real I don't know them but I caught based on the review on Google and I called them around 7 o'clock in the morning or 630 or something they can 11 o'clock they find the issue and they fix it right away and they really charge me wireless the same things I fixed it last months which is cause me literally doubled than what they charge me today and they told me what is Course but those guy the last month they fix it but they did not tell me from what I really appreciated this company dear good experience they are the best if I'm looking for someone repair your heating system call them mechanic they are the best thank you you guys. The issue is from the insect they went to that and they get burned with the electric and then the electric is not going through issue. Last month on 27 I called the company around here Neville and they came they changed the book the same and they tell me for $485. And today with the AC mechanic guy they just tell me for $75 to come in the bar total is just $300 that's really reasonable for me thank you so much I really appreciate that again again”
A.R.SIMS Heating & Air Conditioning, Inc.
“Georgia oak landscaping was very professional. Their staff was courteous, very skilled and very very neat. The retaining walls are wonderful.”
RK Heating & Air Conditioning
“I called another company and they told me that my ac unit is not fixable and need to be replaced. I came in touch with RKHVAC via a reference . RK quickly diagnosed the issue, explained everything clearly, and got our system working perfectly. He also advised few tips to save on maintenance expenses.. Highly recommend!”
JR Hobbs
“We had the pleasure of having Hector here at my property fixing our AC. He was not only so knowledgeable, but such a great person to work with! Move him to Florida PLEASE! :)”
A-Z Heating & Air Conditioning
“Mike worked fast to get our AC unit fixed during this heat wave (and before stores closed for the holiday). He is friendly, professional, and efficient. I highly recommend his work.”
ABC Mechanical Inc
“Monday, July 20, 2026<br>Mr. Worrell Griffith is an honest businessman with whom I have been doing business with for about the last 15 plus years. He replaced an entire HVAC/Furnace system in my former home. And in my current home, he installed a gas line for a stove, he also diagnosed and serviced the HVAC system. Regardless of how big or small the job, I can always trust that Mr. Worrell is going to be precise and give a fair price. I have referred Mr. Worrell to a few of my friends and they have all been very pleased with his services too. If you want the job done right, then look no further, and call him! ~by Sarah Grant-Kidd”
D & L Air Conditioning
“Highly recommended!! My family has been using their services for 20 years. Over those years they have serviced several of our personal residences along with multiple client homes. This is a family business. I recommend and share their contact information with friends and colleagues knowing they'll get an honest and professional assessment of their heating and air issues.”
Seasons Comfort
“Andy and his boys are amazing! They’ve been handling our sporadic issues at home for years now - always diligent, communicative, and kind. Great guys to know and their services are highly recommended.”
Airtech Engineering Inc
“These guys are always the best! Honest professional and I always feel like they are under charging me.”