We service both air-source and ductless heat pump systems.
A heat pump stuck in one mode, or one that's iced over and won't defrost, gets diagnosed with the right tools for that specific failure mode.
A heat pump that seems to be 'not heating' is often actually a reversing valve or defrost cycle problem, which a technician trained mainly on standard ac systems can easily misdiagnose, which is exactly why heat pump repair calls in Alamo, CA get treated with urgency, not a next-available-Tuesday slot.

Most heat pump repair problems give some warning before they turn into a system stuck blowing cold air in heating mode, an outdoor unit that's iced over and won't run its defrost cycle, or a system that switches modes but never actually reaches set temperature — catching it early usually means a shorter, cheaper fix.
AAA Pro HVAC built its heat pump repair process around one idea: diagnose first, quote honestly, fix it right.
We're licensed, insured, and staffed with techs who've spent years specifically on heat pump repair, not general handyman work with an HVAC certificate bolted on.

Heat pump failure modes are different enough from standard AC that generic diagnostics often miss the actual cause.
No-heat calls in winter get the same priority as no-cool calls in summer.
You get a quoted price after the reversing valve and defrost cycle are actually tested, not billed for trial-and-error.
We test reversing valve solenoids, defrost thermostats, and control board timing directly.
Every job starts with a real diagnosis, not a guess — here's the full scope of what our heat pump repair technicians handle across Alamo, CA.
We test the valve's solenoid directly rather than assuming based on symptoms alone. This is one of the most requested heat pump repair calls we get across Alamo, CA.
We verify the defrost cycle actually triggers under test conditions. This is one of the most requested heat pump repair calls we get across Alamo, CA.
Backup electric heat strips that fail can leave a home without adequate heat during the coldest stretches. This is one of the most requested heat pump repair calls we get across Alamo, CA.
We charge to the manufacturer's heat pump-specific target, not a generic number. This is one of the most requested heat pump repair calls we get across Alamo, CA.
We distinguish between the two before recommending any repair. This is one of the most requested heat pump repair calls we get across Alamo, CA.
Indoor head unit and outdoor condenser are diagnosed as a connected system. This is one of the most requested heat pump repair calls we get across Alamo, CA.

That detail determines which specialized tools ride along.
Heat pump-trained technicians arrive with reversing valve and defrost diagnostic equipment already loaded.
Flat-rate pricing follows the confirmed diagnosis.
Workmanship is guaranteed and documented on your invoice.

Previous company just topped off refrigerant twice — this tech found the stuck reversing valve in ten minutes.
Outdoor unit was constantly covered in ice and I thought that meant it was broken.
Auxiliary heat strips weren't kicking in during a cold snap and the house couldn't keep up.
Tech recognized it immediately as a defrost-related fault specific to that brand.

This is one of the most common and most misdiagnosed heat pump failures.
Some frost during a normal defrost cycle is expected; ice that never clears points to a defrost board or thermostat fault.
A technician needs specific training on these components to diagnose heat pump issues accurately.
Heat pumps naturally work harder as outdoor temperatures drop, and auxiliary heat should engage below a certain threshold.
These systems have their own fault-code patterns that our techs are trained to read.
No-heat heat pump calls get year-round priority dispatch across Alamo, CA.

Whether you're in the heart of Alamo or one of the surrounding communities, dispatch routes the closest available technician.
☎ Call +1-866-805-8548 for Alamo Service