“The technician from MJM HVAC clearly explained the thermostat installation and repair process, which made it easy for me to understand what was needed.”
Derek M.Port Washington North
VerifiedFast replace ductless circuit board in Port Washington North, carried out by licensed local crews who understand Nassau County. Our experts are trained to diagnose and rectify issues caused by the humid continental challenges unique to Nassau County. We ensure a detailed assessment and provide a flat-rate quote to address the malfunction quickly and effectively, restoring your system without hassle.
Licensed · Upfront options · Clean work areas · Written guarantees
These are our most frequently served ZIP codes. Nearby areas may also qualify—call if you do not see yours.
Manorhaven · Sands Point · Baxter Estates · Port Washington · Plandome Manor · Plandome · Kings Point · Flower Hill · Plandome Heights · Sea Cliff · Great Neck · Munsey Park
Manorhaven · Sands Point · Baxter Estates · Port Washington · Plandome Manor · All New York cities
“The technician from MJM HVAC clearly explained the thermostat installation and repair process, which made it easy for me to understand what was needed.”
Derek M.Port Washington North
Verified“After noticing inconsistent cooling, I called MJM HVAC for urgent Mini Split AC Repair. They arrived within the hour and had everything sorted out quickly.”
David L.Port Washington North
Verified“I was grateful for the friendly crew that repaired my refrigerant leak in Sands Point. They were efficient and professional.”
Victor S.Port Washington North
VerifiedA real dispatcher is available if your question is not answered here.
Call 8334920770 →Most Port Washington North calls are scheduled the same day, with 24/7 emergency response across Nassau County.
We quote a flat rate up front - typically in the range shown below - and you approve it before we begin.
Call now for fast, licensed Mini Split AC Repair anywhere in Port Washington North and Nassau County.