Heat pump repair and installation in Alpharetta, GA covers diagnosing and fixing a system that moves heat rather than generating it, or replacing that system with a properly sized new unit matched to the home. A functioning heat pump should keep your home comfortable through both Alpharetta’s long, humid summers and the colder nights this part of the north metro sees more often than areas closer to the city.
Alpharetta sits far enough north on the metro that freezing nights are a real part of winter, not a rarity. That matters for heat pumps because these systems have a harder time pulling heat from very cold outdoor air, and a unit that was undersized or poorly commissioned years ago will show its weaknesses fast when temperatures drop. At the same time, the summer humidity along the GA-400 corridor puts steady strain on refrigerant circuits, coils, and electrical components all season long.
A big share of the homes we service in Alpharetta sit in subdivisions that went up through the 1980s, 1990s, and early 2000s, particularly in areas like Windward and along Haynes Bridge Road. The builder-grade systems installed in those homes are now reaching or past the end of a typical service life, and the ductwork that came with them often needs attention too. Newer construction near Avalon and larger properties toward the Milton border bring their own sizing and zoning considerations.
All Purpose Heating and Air Conditioning has been doing this work for more than 35 years. We are locally owned, licensed and insured, and we make the drive up GA-400 to Alpharetta on a regular basis. If your heat pump is giving you trouble or you are thinking about a replacement, give us a call or request your estimate.
Some warning signs are hard to miss. If your heat pump is blowing cool air in heating mode, that is rarely a thermostat issue. It usually points to a failed reversing valve, low refrigerant charge, or a defrost cycle that is not completing the way it should. On a cold January night in Alpharetta, when temperatures drop into the twenties and the system is already working at its limit, a marginal reversing valve that got through milder weather will often fail completely.
Ice on the outdoor unit is another common call. Some frost during a cold morning is normal. A unit encased in ice, or one that never seems to clear, usually means the defrost board or defrost sensors have failed. Left alone, that condition will damage the compressor.
Auxiliary heat running constantly is worth paying attention to. Every heat pump has backup electric resistance strips for the coldest days. If your auxiliary heat light stays on through a mild afternoon, the heat pump itself is not keeping up, and you are paying to run the more expensive backup system full time.
Age is a factor that homeowners in older Alpharetta subdivisions should think about honestly. Systems installed during the original construction of Windward-area neighborhoods in the 1990s are now well past the industry-standard expected service range for heat pumps. A system that old is not just less efficient. It is likely to need increasingly frequent repairs, and replacement parts for older units become harder to source. At some point, repair costs stop making sense compared to the cost of a new, properly sized system.
Every job starts with a real diagnosis. We do not replace parts on a guess. On a repair call, we check refrigerant charge, test the reversing valve, inspect the defrost board and sensors, check capacitors, and look at the electrical connections throughout the system. If the air handler is in the attic, we check that too, including the blower motor and coil.
For a replacement, sizing comes first. We look at the square footage, the insulation, the window load, and the ductwork condition before we recommend a system. A heat pump that is too small will run constantly and still leave the house uncomfortable on the worst days. One that is too large short-cycles and does not pull humidity out of the air properly, which matters a great deal during an Alpharetta summer. We size the job to the house, not to what was there before.
On installation day, we handle refrigerant lines, electrical connections, and the disconnect. We check the air handler if it is staying, or replace it if the job calls for that. Before we leave, we run the system through both heating and cooling modes and confirm the defrost cycle is functioning correctly.
What drives the cost of a heat pump job is straightforward: repair versus replacement, the size and efficiency rating of the new system, whether the air handler is being replaced at the same time, and the condition of the existing ductwork. A repair call and a full system replacement are very different scopes. The right way to get a real number is to request your estimate so we can look at the actual equipment and the house.
Heat pump repair and installation is one part of what we do for homeowners in this part of the metro. If you want a fuller picture of our heating and cooling work in the area, our Alpharetta HVAC service page covers the range of equipment we work on and the neighborhoods we serve regularly, from Crabapple and the Wills Park area down through the subdivisions along Webb Bridge Road.
Heat pumps are our focus on this page, but cooling problems sometimes show up as what looks like a heating issue and the other way around. If you are not sure whether you have a heat pump problem or a broader cooling system problem, our heat pump services overview explains how these systems work in both modes and what we look for during a service call.
Homeowners dealing with a system that is not cooling the way it should during the summer months may also want to look at our AC repair service for Alpharetta. The symptoms of a struggling heat pump in cooling mode and a conventional AC problem can look nearly identical from inside the house, and getting the right diagnosis early saves time and money.
Wherever you are in Alpharetta, give us a call or request your estimate and we will get you on the schedule.
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