AC Repair
Restore cooling fast with honest troubleshooting, clear repair options, and service focused on comfort, reliability, and system life.
Explore AC RepairLocal HVAC service for Lawrenceville and nearby Metro Atlanta communities
From urgent AC repair to full HVAC replacement, Thermal delivers honest service, experienced technicians, and free estimates for installations and system replacements across Gwinnett County and surrounding areas.

Core Services
From urgent no-cool calls to full system replacements and seasonal tune-ups, Thermal handles it all across Lawrenceville and Gwinnett County.
Restore cooling fast with honest troubleshooting, clear repair options, and service focused on comfort, reliability, and system life.
Explore AC RepairUpgrade to a better-fit cooling system with guidance on efficiency, sizing, and long-term value for Lawrenceville-area homes.
Get a Free EstimateSolve furnace and heating problems quickly with experienced diagnostics and repairs that keep your family safe and comfortable.
View Heating RepairPlan a smoother system replacement with straightforward recommendations and free estimates for new installs and change-outs.
Compare Replacement OptionsProtect efficiency, reduce surprise breakdowns, and help your equipment last longer with seasonal inspections and tune-ups.
Schedule a Tune-UpImprove airflow and cleaner air inside your home with indoor air quality accessories and practical recommendations.
Ask About Air QualityWhy Choose Thermal
Thermal is a family-owned operation. Every recommendation is made the way we'd advise a neighbor — no upselling, no guessing, no cutting corners.
Thermal Heating & Air Conditioning, Inc. has served Lawrenceville and surrounding counties for more than two decades.
Customers consistently mention prompt arrivals, clear explanations, and fair repair recommendations instead of pressure.
We always emphasize doing the job right the first time and staying current with factory training and newer equipment options.
Replacement and installation estimates are clearly offered at no charge, making it easier to plan larger HVAC decisions.
Serving Gwinnett plus seven surrounding counties — Barrow, Hall, Jackson, DeKalb, Forsyth, Oconee, and Clarke.
Every visit centers on making your home comfortable, keeping repairs affordable, and helping you understand your options.
Service Area
Thermal is based in Lawrenceville and services eight Metro Atlanta counties. If you're unsure whether your property is within range, call and we'll confirm quickly.
We cover everything from urgent no-cool calls to full system replacements across all service areas. Residential and light commercial properties welcome.
Reviews
Real feedback from homeowners in Lawrenceville and across Gwinnett County.
“We have been using your company for over 20 years — three homes! Every time you have been prompt, very informative, and focused on doing the job right. That kind of consistency is rare.”
John D.
Long-time customer across multiple homes
“Was having trouble with my AC unit, called them Thursday evening. Had my new system ordered and installed the next day. Super professional and awesome from start to finish.”
Diana H.
Emergency AC replacement customer
“A top tier company. After purchasing a complete HVAC system, I signed up for their Planned Maintenance Agreement to keep everything at peak performance. Best decision I made — and I added them to my HOA's preferred contractor list.”
Jim H.
System replacement and maintenance plan customer
Call Now
Call for repair service today or request a free estimate for replacement and installation work.
Contact
Use the call button for urgent heating and air issues, or send a quote request for system replacement, installation, maintenance, or indoor air quality work.
Call Now
(770) 614-9318Fastest option for repair service, no-cool emergencies, no-heat issues, and urgent scheduling questions.
Business Info
What homeowners should expect