Heater blowing cold air? We fix it fast.
Get warm air blowing again with same-day furnace and heat pump diagnostics across Marietta, Smyrna, Kennesaw, and surrounding areas.
Common causes of heating and cooling breakdowns
HVAC systems give clear signals before they stop working completely. Here are the five most frequent issues we diagnose and repair across Marietta and Cobb County.
Unresponsive screen, mismatched temperature readings, or short cycling.
Faulty sensors, depleted backup batteries, or degraded signal wiring prevent the thermostat from communicating accurately with your blower and condenser.
System blows cold air during winter or warm air in the summer.
In heat pump systems, the 4-way reversing valve directs refrigerant flow between heating and cooling cycles. When stuck or electrically faulted, it locks into one mode.
Hissing noises, frost on copper lines, and weak cooling output.
Micro-leaks along coils and connection joints drop system pressure, forcing the compressor to overheat while failing to absorb or transfer heat.
Weak airflow from registers, hot and cold spots, or frequent overheating.
Clogged air filters, obstructed return grilles, or ductwork collapses restrict circulation, choking the air handler and stressing the fan motor.
Soot around burner doors, strange chemical odors, or carbon monoxide alarms.
Thermal stress causes microscopic cracks in older furnace heat exchangers, compromising heating efficiency and risking flue gas leakage into your living space.
Answers to common HVAC questions
Clear answers on troubleshooting, system diagnostics, repair choices, and emergency dispatch across Marietta and Cobb County.
Quick diagnostics
Accurate troubleshooting with clear, flat-rate pricing.
24/7 emergency dispatch
Prompt arrival when heating or AC fails during severe weather.
Repair or replace guidance
Honest equipment assessments tailored to your home budget.
Speak directly with an on-call technician or schedule a standard service appointment online.
Before booking a service call, check three quick items: ensure your thermostat is set to cool or heat with fresh batteries, verify that your air filter is clean and unblocked, and check your electrical breaker panel to confirm the HVAC switch has not tripped.
Unsure if your system needs a quick repair or full diagnostics?
Book an inspection with our Cobb County specialists for an honest recommendation.
Heater blowing cold air? We can diagnose it today.
When your furnace or heat pump stops putting out warm air, you shouldn't have to wait in the cold. We inspect thermostats, flame sensors, igniters, and safety switches to pinpoint the exact failure.
Serving Marietta, East Cobb, Smyrna, Kennesaw, Acworth, Roswell, and surrounding areas.
Same-day diagnostic response
Fast local arrival across Marietta, East Cobb, and Smyrna.
Accurate troubleshooting
We verify pilot lights, sensors, control boards, and blowers.
Straightforward estimates
Clear repair options with no hidden dispatch fees or surprises.