“I was impressed by the thorough maintenance service from MJM HVAC when my Mini Split AC wasn't functioning properly. They fixed issues that others had overlooked near Sea Cliff.”
Carlos V.Sea Cliff
VerifiedFast replace ductless circuit board in Glen Cove, carried out by certified 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.
Glen Head · Sea Cliff · Locust Valley · Lattingtown · Matinecock · Glenwood Landing · Old Brookville · Mill Neck · Upper Brookville · Roslyn Harbor · Port Washington · Greenvale
Sea Cliff · Glen Head · Locust Valley · Lattingtown · Matinecock · All New York cities
“I was impressed by the thorough maintenance service from MJM HVAC when my Mini Split AC wasn't functioning properly. They fixed issues that others had overlooked near Sea Cliff.”
Carlos V.Sea Cliff
Verified“The technician from MJM HVAC clearly explained the thermostat installation and repair process, which made it easy for me to understand what was needed.”
Nora P.Glen Cove
Verified“The compressor replacement service I received was backed by a written warranty, and they returned promptly when I had questions in Glen Cove.”
Kevin L.Sea Cliff
VerifiedA real dispatcher is available if your question is not answered here.
Call 8334920770 →Most Glen Cove 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 Glen Cove and Nassau County.