For The Utmost Care, Call Res Air!
Expert AC repair, heating installation & indoor air quality across Hall County. 20+ years of field experience.
- 100% Satisfaction Guarantee | Licensed & Insured
600+
5-Star Google Reviews
20+
Years of HVAC Experience
100%
Customer Satisfaction
24/7
Emergency HVAC Service
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Our Services
FOR COMFORT YOU CAN COUNT ON, CALL RES AIR!
From emergency AC repair to full system installs — we handle every aspect of your home’s comfort with precision, honesty, and care.
Air Conditioning
Fast AC repair, replacement & maintenance to keep your home cool and comfortable in the Georgia heat.
Heat Pumps
Expert heat pump installation, tune-ups, and repairs for efficient year-round comfort and dependable performance in every season.
DUCTLESS MINI-SPLIT
Ductless mini-split solutions for targeted comfort, energy efficiency, and flexible heating and cooling in hard-to-condition spaces.
Heating
Professional heating repair, replacement, and maintenance to keep your system running safely, efficiently, and reliably when temperatures drop.
Indoor Air Quality
Improve the air inside your home with advanced indoor air quality solutions, including UV-light purification and duct cleaning services.
Air Conditioning
Fast AC repair, replacement & maintenance to keep your home cool and comfortable in the Georgia heat.
Heat Pumps
Expert heat pump installation, tune-ups, and repairs for efficient year-round comfort and dependable performance in every season.
DUCTLESS MINI-SPLIT
Ductless mini-split solutions for targeted comfort, energy efficiency, and flexible heating and cooling in hard-to-condition spaces.
Heating
Professional heating repair, replacement, and maintenance to keep your system running safely, efficiently, and reliably when temperatures drop.
Indoor Air Quality
Improve the air inside your home with advanced indoor air quality solutions, including UV-light purification and duct cleaning services.
Specials
Save Big, Current Specials
Save on HVAC repairs, maintenance, and new system installations with our current limited-time offers.
Up to
$1,500 Off
On High-Efficiency HVAC System Installations
Free
Service Call with Repair
15% OFF
Repairs for Maintenance Members
About Res Air
HVAC Experts You Can Trust
Res Air Heating & Cooling proudly serves Gainesville, GA and surrounding areas with honest HVAC services. From fast repairs to full system installations, our team is committed to getting the job done right the first time.
-Res Air Heating & Cooling
“We believe every homeowner deserves honest HVAC service, clear pricing, and work done right the first time.”
Every service we provide is backed by our commitment to quality workmanship and customer satisfaction. Whether it’s a quick repair or a full system upgrade, we treat your home with care and respect — just like it’s our own.
Why Choose Res Air
The Res Air Difference
We treat every home like it’s our own
Licensed & Certified HVAC Technicians
Our technicians are fully licensed, professionally trained, and committed to delivering safe, high-quality HVAC service you can trust.
Transparent, Upfront Pricing
No hidden fees. No surprises. Just honest, upfront pricing so you know exactly what to expect before any work begins.
Fast & Friendly Service
We respect your time. Our team arrives promptly, works efficiently, and treats your home with care and professionalism.
Our Workmanship Guarantee
We stand behind every job we complete. If something isn’t right, we’ll make it right — no shortcuts, no excuses.
5-Star Rated by Homeowners Like You
Homeowners across Gainesville trust Res Air for reliable service, honest work, and consistent 5-star experiences.
24/7 Emergency HVAC Service
Heating or cooling issue? We’re available day or night to restore comfort quickly when you need it most.
Flexible Payment Plans
Financing Available
Get the comfort you need today without the upfront cost. We offer flexible financing options with convenient monthly payments to fit your budget.
Whether it’s a repair or a full system replacement, our team will help you find a financing solution that works for you — with fast approvals and no hassle.
Service Areas
HVAC Services in Gainesville, GA & Surrounding Areas
We provide expert heating, cooling, and indoor air quality services across Gainesville, GA and nearby communities — delivering fast, reliable comfort you can count on.
Gainesville, GA
Flowery Branch, GA
Oakwood, GA
Buford, GA
Jefferson, GA
Alpharetta, GA
Baldwin, GA
Cleveland, GA
Dahlonega, GA
Hoschton, GA
Maysville, GA
Pendergrass, GA
Blog
HVAC Tips, Maintenance & Energy Savings
Understanding HVAC Systems
Call 999-999-9999 Your home is one of your biggest investments, and keeping it in good condition takes year-round attention. Regular maintenance not only protects the
Top 5 Home Maintenance Tips
Call 999-999-9999 Your home is one of your biggest investments, and keeping it in good condition takes year-round attention. Regular maintenance not only protects the
Seasonal Home Prep Checklist
Call 999-999-9999 As the seasons change, so do the demands on your home. From keeping your HVAC system running efficiently to protecting against extreme weather,
Understanding HVAC Systems
Call 999-999-9999 Your home is one of your biggest investments, and keeping it in good condition takes year-round attention. Regular maintenance not only protects the
Top 5 Home Maintenance Tips
Call 999-999-9999 Your home is one of your biggest investments, and keeping it in good condition takes year-round attention. Regular maintenance not only protects the
Understanding HVAC Systems
Call 999-999-9999 Your home is one of your biggest investments, and keeping it in good condition takes year-round attention. Regular maintenance not only protects the
FAQs
Frequently Asked Questions
- Need Help Right Now?
Our team is available 24/7 to answer your questions and schedule fast service.
How much do heating services cost in Gainesville, GA?
Costs vary by system type and the work involved. Common heating repairs range from $180 (hot surface igniter, flame sensor) to $800 (gas valve), with larger items like heat exchanger replacements running $1,500-$3,000. A standard heating tune-up is $55. Full system installations range from $4,500-$14,500 depending on equipment type, efficiency tier, and ductwork. Each repair starts with an $85 diagnostic and a written quote before any work begins.
When should I schedule a heating tune-up?
Early fall — September or October — is the best window. Heating systems that sat idle through summer are most prone to failure in their first weeks of operation, and a fall inspection catches the components most likely to fail. Late-fall slots fill quickly across the area, so booking by October is the practical guideline.
Why is my furnace not turning on in cold weather?
Common causes include a failed hot surface igniter or flame sensor, a clogged condensate line on a high-efficiency furnace (which trips a safety switch), a failed pressure switch, gas supply issues, a thermostat fault, or a tripped breaker on the furnace circuit. A diagnostic identifies which is at play. Resetting power without addressing the underlying cause sometimes works briefly but rarely fixes the actual problem.
How do I know if my heating system needs repair or replacement?
The decision usually turns on system age, the cost of the failed component, and the system's overall condition. Gas furnaces over 15 years old, units running R-22 (on heat pump systems), or systems with heat exchanger cracks or compressor failure often cross the replacement threshold. Newer systems or those with isolated component failures are usually worth repairing. We provide a written side-by-side comparison as part of major repair quotes.
Do you offer 24/7 emergency heating service in Gainesville, GA?
Yes. We provide emergency heating service in Gainesville, GA, around the clock, with a response time of 24 hours or less during the heating season. Coverage includes Flowery Branch, Oakwood, Buford, and Jefferson alongside the Gainesville core. There's no trip fee on booked service.