★★★★★
“After getting a filter replacement, I found peace of mind with the efficiency of my Mini Split AC in Ronkonkoma. MJM HVAC did fantastic work.”
SA
Simone A.Ronkonkoma
Verified4.7 ★Average rating
13,983+Jobs done
24/7Emergency service
Licensed · Upfront options · Clean work areas · Written guarantees
RONKONKOMA
AREA
MMMMMAREA
Primary Ronkonkoma response zone
Ronkonkoma service coverage
Is your ZIP on the route?
These are our most frequently served ZIP codes. Nearby areas may also qualify—call if you do not see yours.
11779
Popular neighborhoods
Lake Ronkonkoma · Bohemia · Islandia · Holbrook · Nesconset · North Great River · Lake Grove · Central Islip · Holtsville · Sayville · Village of the Branch · Oakdale
Nearby cities
Check my address →Lake Ronkonkoma · Bohemia · Islandia · Holbrook · Nesconset · All New York cities
Reviews
What Ronkonkoma Customers Say
4.9★★★★★verified reviews
★★★★★
“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.”
MT
Marcus T.Ronkonkoma
Verified★★★★★
“I received a fair quote for a ductless Mini Split system installation with no hidden upsells. MJM HVAC was transparent throughout the process.”
SO
Sam O.Ronkonkoma
Verified More Services
Other services in Ronkonkoma, NY
01Mini Split AC InstallationFast Mini Split AC Installation in Ronkonkoma, c↗02Mini Split AC RepairReliable Mini Split AC Repair in Ronkonkoma, han↗03Mini Split AC MaintenanceReliable Mini Split AC Maintenance in Ronkonkoma↗04Mini Split AC ReplacementSame-day Mini Split AC Replacement in Ronkonkoma↗05Ductless Mini Split SystemsSame-day Ductless Mini Split Systems in Ronkonko↗
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