Air Conditioner Repair & Service
By Cool Masters Services Inc.
Cool Masters Services Inc. is your trusted local expert for air conditioner repair and service near Lawrenceville, GA, We specialize in keeping your home comfortable with fast, reliable AC solutions. Our skilled technicians are trained to handle all makes and models, ensuring your AC runs efficiently year-round.
What Does The Process Look Like?

Book an Appointment
To start the process, book an appointment for air conditioner repair and service with us by scheduling online or giving us a call.

Evaluation & Estimate
During your appointment, a certified technician will thoroughly evaluate your air conditioner to diagnose any issues. After the inspection, they will provide a detailer estimate outlining the necessary repairs and costs before proceeding with any work.

Perform Service or Repair
Necessary repairs or service are performed to restore your air conditioner’s efficiency and performance. A certified technician will use professional tools and high-quality parts to ensure reliable operation and long-lasting results.
Other Services We Provide

Furnace Repair & Service
We provide professional furnace repair and service to keep your heating system operating at peak performance. Our certified technicians can identify problems, perform necessary repairs, and fine-tune your system to keep you comfortable all year long.

HVAC Maintenance
We provide annual HVAC maintenance to keep your heating and cooling system running efficiently year-round. Regular tune-ups help prevent breakdowns, can improve energy efficiency, and extend the lifespan of your heating and cooling equipment.

HVAC System Installation
Let us ensure reliable comfort and energy efficiency for your home with professional HVAC system installation. We offer high-quality Carrier equipment, precise HVAC installation, and customized solutions to meet your heating and cooling needs.
Trusted HVAC Professional in Lawrenceville
Coolmasters
April 02, 2025
Did an amazing job. Highly recommend
Ron
Expertise (5)
Solve Problems (4)
Service (5)
Reliable and knowledgeable
March 27, 2025
The technician was very knowledgeable and tracked down the problem.
Nancy
Expertise (5)
Solve Problems (5)
Service (5)
Excellent personal service!
August 19, 2022
Knowledgeable attention to detail that corrected the flawed and antiquated system we had.
Kay
Expertise (5)
Service (5)
Solve Problems (5)
Excellent
March 15, 2022
Excellent service
Tony
Expertise (4)
Service (4)
Solve Problems (4)
Outstanding Service and follow up!!!!
August 28, 2021
Cool Masters is a very professional cooperative company to work with. The customer service was outstanding and pricing was reasonable.
Shelly
Expertise (5)
Service (5)
Solve Problems (5)
Installed new A/C system after storm damage
August 26, 2021
Extremely professional and knowledgeable. Will not hesitate to continue to use Cool Masters for any heating or air conditioning need, as I have for the past 15 years. They're tops!
Ed
Expertise (5)
Service (5)
Solve Problems (5)
Very good experience
July 20, 2021
As an HVAC professional myself, I was pleased with the level of professionalism exhibited by Johnathan and the crew.
Peter
Expertise (5)
Service (5)
Solve Problems (5)
Cool Masters should be your first and last call for any HVAC concerns!
May 17, 2021
THE most trusted and informed vendor and contractor that I've ever dealt with.
Mike
Expertise (5)
Service (5)
Solve Problems (5)
Awesome service!
October 27, 2020
Excellent service from start to finish. Thanks Jonathan and Cool Masters!
Brian
Expertise (5)
Service (5)
Solve Problems (5)
Super Happy
October 05, 2020
Furnace stopped working, called in and they were out the next day to inspect. Turned out my furnace was 20 years old and could be repaired but would only be about $500 cheaper than to replace. Cool Masters made it easy for me to get it replaced and was out the next business day to install the new furnace. The installers were very professional and explained any questions I had.
Denise
Expertise (5)
Service (5)
Solve Problems (5)
Knowledgeable and explained new hvac well.
October 04, 2020
Sales manager Explained various hvac systems available. Techs were helpful and efficient. Highly recommend cool masters and the carrier brand.
Gale
Expertise (5)
Service (5)
Solve Problems (5)
True professionals
June 19, 2020
Jonathon diagnosed the problems with our previous system, which was 10 years old, and fully explained the nature and effects of those problems. He then detailed our options, including both repairs or replacements of specific elements, and the costs/benefits of each option. After we decided on a new system, he ensured that the installation was promptly and properly completed and we were fully satisfied with the entire process.
Linda
Expertise (5)
Service (5)
Solve Problems (5)
Do your research.
September 21, 2019
I should have gone to the website for Georgia Power first. There were 2 cool rebates listed on my estimate and I did not research them and I take full blame for that. I asked about them after the fact and was told they had expired. I went back to the Carrier website which linked me to the GA Power website. The 2 rebates were applicable to my unit, $50 for the air conditioner and $500 for the heat pump. However, when you click on Authorized dealers, the one I used was not an accepted vendor for the rebate. Like I said, I should have done a whole lot more research. I also have not seen reductions in my electric bill.
Deborah
Expertise (4)
Service (4)
Solve Problems (3)
Great overall experience
September 11, 2019
Coolmasters was able to explain everything thoroughly and absolutely zero pressure. They did what they said they would do and when they said they would do it. Couldn?t be more pleased.
Fredy
Expertise (5)
Service (5)
Solve Problems (5)
EXCELLENT
September 11, 2019
EXCELLENT SERVICE AND PROFESSIONAL. LOVE COOLD MASTERS
Karen
Expertise (5)
Service (5)
Solve Problems (5)
Cool Master = Outstanding People
July 20, 2019
In searching for a dealer to replace my HVAC system, I did have a lower quote. However, the thorough review and attention to detail provided by Cool Masters really impacted my decision to do business with them. In addition, Cool Masters also provides Quality Control Inspection within 14 Days of Startup, re\-inspection 6 months later to ensure proper operation and another inspection 12 months after installation. . .just to make sure! Throughout the quote, install, and first inspection I have met 6 employees of Cool Master and they were all great people. I'd recommend this company to anyone with HVAC needs.
Mike
Service (5)
Fast & Reliable!
May 03, 2019
They installed a commercial Carrier unit on the roof of my business. They came on time with the crane truck and everything, looked very impressive. Finished the job within a few hours, cleaned up and left. I was surprised when my manager called and said everything was done. The unit works great so far. Thanks.
Brian
Expertise (5)
Service (5)
Solve Problems (5)
Cool Masters equipment install
April 25, 2019
Cool Masters has taken care of our HVAC needs for several years. They have always come through with a solution for me that meet my requirements. I always recommend their services.
David
Expertise (5)
Service (5)
Solve Problems (5)
PERFECT INSTALL OF NEW HVAC
February 25, 2019
MY HVAC unit in my condo died unexpectedly. I called Coolmasters. They came over immediately. They helped me calculate the sizr unit I needed, had it ready the next day, installed it and even cleaned up when they were done. They were on time, quiet, courteous, professional, and quick.
Patrick
Expertise (5)
Service (5)
Solve Problems (5)
very good no problems
February 22, 2019
good service from techs and inside staff
Steve
Expertise (5)
Service (5)
Solve Problems (5)
I would do buseness with this company again A+++++
November 16, 2018
I am very happy with this company professionalism, specialist with one of their technician Jonathan. He was very helpful and professional and every time I called him he always answered my questions and my concerns .
Jorge
Expertise (5)
Service (5)
Solve Problems (5)
Excellent
October 05, 2018
Love the fact that they come back a few weeks later to make sure we are happy with new unit. Check to make sure everything is running properly and takes their time to explain how everything works and takes time to answer any questions we have.
Melanie
Expertise (5)
Service (5)
Solve Problems (5)
Review
September 29, 2018
Issues connecting on the quotation aspect of this transaction, but otherwise a satisfactory experience.
David
Expertise (5)
Service (4)
Solve Problems (5)
No pressure (even when it was 90 inside)
September 26, 2018
Chris and Cobia were great. They came out quickly and found out what was wrong then presented many options to choose from.
Michael
Expertise (5)
Service (5)
Solve Problems (5)
positive
September 24, 2018
They were the best
Peggy
Expertise (5)
Service (5)
Solve Problems (5)
