Your heat pump handles both heating and cooling from a single system. When it stops working — whether it's blowing cold air in winter, not cooling in summer, or making sounds it never made before — you need a technician who actually understands how heat pumps work, not someone who guesses and swaps parts.
We repair heat pumps and ductless mini split systems throughout Astoria. Same-day service, 24/7 availability, diagnosis before recommendations
A heat pump is not a furnace. It doesn't burn fuel to generate heat — it moves heat using refrigerant, a compressor, a reversing valve, and two sets of coils. In winter it extracts heat from outdoor air and moves it inside. In summer it runs in reverse and acts as an air conditioner.
When something goes wrong, the symptoms often look the same on the surface — no heat, no cooling, not enough output. But the cause could be a failed reversing valve, low refrigerant, a defrost control fault, a failing compressor, or an electrical issue. Each one requires a different fix. Diagnosing it correctly the first time is what separates a real repair from a part swap that doesn't solve anything.
Here's a clear breakdown of what we install, what each system does, and which homes in Astoria they're best suited for.
The most urgent call we get in winter. Usually a stuck or failed reversing valve — the component that switches the system from cooling into heating mode. When the valve fails electrically or sticks mechanically, the system stays in cooling mode regardless of what the thermostat says. We test the valve and replace it when needed.
A light frost on the outdoor unit during cold weather is normal — the system runs a defrost cycle to clear it. A unit completely encased in ice is not normal. It means the defrost cycle has failed — usually a bad defrost board, a faulty sensor, or low refrigerant. Running a frozen unit damages the compressor. Turn it off and call us.
The system cycles on and produces some output but your space never gets to the set temperature. Usually low refrigerant, dirty coils reducing heat transfer, or a system that was never sized correctly for the space. We measure actual system performance — suction and discharge pressures, temperature split across the coil — before recommending anything.
A heat pump that can't complete a normal run cycle is reacting to a safety trigger. Dirty filter restricting airflow, a pressure fault, or a failing electrical component. Short cycling puts serious stress on the compressor and compounds wear across the whole system. It needs diagnosis, not patience.
Failed capacitor, tripped breaker, or dead control board. We carry common capacitors and electrical components on our vans and resolve most of these on the first visit without ordering parts.
Grinding or squealing from the air handler is typically a failing blower motor bearing. Hissing near the refrigerant lines points to a leak. A bang at startup is often a capacitor. A bubbling or gurgling sound usually means refrigerant is low. Each sound is a specific clue — we follow it.
Mini split systems are increasingly common in Astoria — installed in homes and spaces without existing ductwork, in room additions, and in renovations where running ducts isn't practical. They're efficient, zone-specific, and largely trouble-free when properly maintained. When they do fail, the diagnosis requires refrigerant knowledge and familiarity with the specific brand's control logic.
We service and repair all major ductless brands:
Mini splits are also used for cooling, if your issue is purely AC-related, the diagnosis process is the same as outlined here. Mini splits display error codes when a fault is detected. We read those codes, verify the underlying cause, and fix the actual problem — not just clear the code and hope it doesn't come back.
Most heat pump repairs in the Queens area run between $150 and $700 for common issues. More involved repairs run higher:
We give you a written quote after diagnosis and before any work begins. If the repair cost is approaching what a new system would cost, we'll tell you that clearly with both numbers so you can make an informed decision.
Heat pumps typically last 12 to 15 years with regular maintenance. If yours is under 10 years old and the issue is a single component, repair almost always makes sense. If it's over 12 years old, has a history of problems, and you're looking at a major repair — the math often favors replacement, especially since modern systems are significantly more efficient and may qualify for Con Edison rebates and federal tax credits. Comparing against a traditional system? See our boiler installation or furnace repair pages for other heating options.
We'll give you an honest read after the diagnosis. We don't push replacements on systems that have years of reliable life left.
We serve all of Astoria — Ditmars Steinway, Astoria Heights, Astoria Park area, Welling Court, and the full zip codes 11102, 11103, 11105, and 11106. We also cover neighboring Long Island City, Sunnyside, and Woodside.
Every technician we send is a licensed plumber or heating contractor.
Most likely a reversing valve that's partially stuck or failing — it's not fully switching the system into heating mode. Low refrigerant can cause the same symptom. Both require proper diagnosis to confirm which it is.
Light frost during cold weather is normal — the defrost cycle removes it automatically every 30 to 90 minutes. A unit fully encased in ice that isn't clearing means the defrost system has failed. Turn the system off and call us — running a frozen unit risks compressor damage.
Error codes vary by brand but they point to a specific fault in the system. We read and diagnose error codes for all major brands. Don't ignore a flashing error code — it's the system telling you something specific is wrong.
Modern cold-climate heat pumps work efficiently well below freezing. Older or standard-efficiency units can struggle when temperatures drop into the single digits — that's when supplemental heat is supposed to kick in. If yours isn't keeping up on the coldest nights, we'll tell you whether it's a system fault or a genuine capacity limitation.
Most repairs are completed in one visit. If a part needs to be ordered we'll be upfront about the timeline and schedule the return promptly — usually within one to two days.
Yes. Mini splits are heat pumps — they cool in summer and heat in winter using the same system. If yours isn't cooling properly in summer, we diagnose and repair it the same way.