“I had a refrigerant leak in my mini split, and the friendly crew at MJM HVAC took care of it near Duck Key quickly.”
Victor S.Key Colony Beach
VerifiedFor fast replace ductless circuit board services in Key Colony Beach, count on MJM HVAC. Our certified local technicians are experienced in diagnosing and fixing issues throughout Monroe County. We understand that circuit board failures can disrupt your comfort, especially during the warm months of the year. Our team is ready to assess the situation and provide you with a precise, upfront quote.
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.
Marathon · Duck Key · Layton · Big Pine Key · Islamorada, Village of Islands · Cudjoe Key · Tavernier · Big Coppitt Key · Stock Island · Key Largo · Key West · North Key Largo
Marathon · Duck Key · Layton · Big Pine Key · Islamorada, Village of Islands · All Florida cities
“I had a refrigerant leak in my mini split, and the friendly crew at MJM HVAC took care of it near Duck Key quickly.”
Victor S.Key Colony Beach
Verified“The filter replacement was a game-changer for my mini split's performance in Key Colony Beach - I feel the difference!”
Rachel B.Key Colony Beach
Verified“The team at MJM HVAC provided exceptional same-day mini split AC repair at a fair price - my unit is now working like new!”
Sarah K.Key Colony Beach
VerifiedA real dispatcher is available if your question is not answered here.
Call 8334920770 →Most Key Colony Beach calls are scheduled the same day, with 24/7 emergency response across Monroe 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 Key Colony Beach and Monroe County.