Comprehensive HVAC Services

Expert Heating & Cooling

At Working Dog Heating and Air, we believe your home's comfort is a serious responsibility. We provide an extensive range of residential and light commercial HVAC services tailored to the Upstate SC climate. From sudden mid-summer AC breakdowns to proactive winter furnace tune-ups, our NCI-certified technicians handle it all. We leverage advanced diagnostic tools to ensure every fix is permanent, safe, and efficient. Experience the unmatched peace of mind that comes with verifiable, A-F graded results.

Technician repairing an open HVAC unit beside a York outdoor air conditioner.

Our Core HVAC Capabilities

Technician kneeling beside outdoor HVAC units, checking gauges and hoses against a blue house siding.

Preventative System Maintenance

Regular maintenance is crucial to guarding against future breakdowns. We perform comprehensive inspections, cleanings, and tune-ups to optimize duct performance and combustion safety, keeping your system running smoothly year-round.

Person kneeling in an attic, inspecting HVAC ductwork and a furnace blower.

24/7 Emergency HVAC Repairs

HVAC emergencies don't wait for convenient business hours, and neither do we. Our team offers 24/7 rapid-response repair services for all major brands, diagnosing the root cause with hard data to ensure the repair is done right the first time.

Outdoor HVAC unit with side panel open, exposed wiring, and tools on a concrete patio.

Precision HVAC Replacement

When repairs are no longer cost-effective, we provide transparent, complementary quotes for high-efficiency system replacements. We guarantee exact sizing, optimal duct configuration, and flawless installation backed by a 2-year warranty.

Blue UV lamps inside a metal chamber with a warning label and an “Air Flow” sign.

Indoor Air Quality Solutions

Your family's health is tied directly to the air you breathe inside your home. We expertly install advanced filtration systems, UV purifiers, and humidity control solutions to eliminate allergens and airborne pollutants.