Serving Suffolk & Nassau County · Long Island, NY

🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧🚨  24/7 Emergency HVAC Service Available — Call Us Now: 631-331-2102  ⚡  Same-Day Service · Licensed & Insured · Serving All of Long Island  🔧

Heat Pumps

Heat Pump Repair
Long Island.

Fast, reliable heat pump repair throughout Suffolk and Nassau County. Same-day and 24/7 emergency service from A1's licensed technicians.

What we repair

Heat Pump Repair &
Troubleshooting.

Heat pumps are complex systems that require specialized knowledge to diagnose and repair. A1's technicians are experienced with all major heat pump brands and can quickly identify and fix the issue — whether it's a refrigerant problem, a reversing valve failure, or a controls issue.

Heat pump diagnosis & repair
Refrigerant leak detection & recharge
Reversing valve repair & replacement
Compressor repair & replacement
Defrost control board repair
Capacitor & contactor replacement
Thermostat & controls repair
Emergency heat pump repair

Common heat pump problems

Not heating or cooling
Running constantly without reaching set temp
Blowing cold air in heat mode
Ice buildup on outdoor unit
Unusual noises (grinding, squealing)
Short cycling on and off
High energy bills
System not turning on

24/7 emergency service

Heat pump not working?

Call A1 now — same-day and emergency heat pump repair across Long Island.

Call 631-331-2102

Common questions

Heat Pump Repair FAQs

Why is my heat pump not heating or cooling?

Common causes include low refrigerant, a faulty reversing valve (which switches between heating and cooling modes), a failed compressor, or a defrost control issue. Call A1 at 631-331-2102 and we'll diagnose the problem fast.

Why is my heat pump running constantly?

Heat pumps are designed to run longer cycles than furnaces — this is normal and more efficient. However, if your system runs constantly without reaching the set temperature, it may indicate low refrigerant, a dirty filter, or a sizing issue. We can diagnose and fix it.

Why is my heat pump blowing cold air in heat mode?

This can be caused by a faulty reversing valve, low refrigerant, a defrost cycle issue, or a problem with the auxiliary heat. Call A1 at 631-331-2102 for a same-day diagnosis.

How long do heat pumps last?

Heat pumps typically last 15–20 years with proper maintenance. Annual tune-ups extend system life and help catch small issues before they become major repairs.

Do you offer emergency heat pump repair on Long Island?

Yes. A1 offers 24/7 emergency heat pump repair throughout Long Island. Since heat pumps provide both heating and cooling, a failure at any time of year can be urgent — call 631-331-2102 any time.

Same-day & emergency service

Heat Pump Repair on Long Island

Licensed, insured, and trusted by Long Island homeowners since 2019. Call now or request service online.