★★★★★
“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.Great River
Verified4.7 ★Average rating
13,983+Jobs done
24/7Emergency service
Licensed · Upfront options · Clean work areas · Written guarantees
GREAT RIVER
AREA
MMMMMAREA
Primary Great River response zone
Great River 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.
1173011739
Popular neighborhoods
East Islip · Oakdale · Islip Terrace · North Great River · West Sayville · Bohemia · Bay Shore · Ocean Beach · Sayville · Central Islip · Brightwaters · West Bay Shore
Nearby cities
Check my address →East Islip · Oakdale · Islip Terrace · West Sayville · North Great River · All New York cities
Reviews
What Great River Customers Say
4.9★★★★★verified reviews
★★★★★
“The technician from MJM HVAC clearly explained the thermostat installation and repair process, which made it easy for me to understand what was needed.”
LH
Luis H.Great River
Verified★★★★★
“Scheduling air quality solutions with MJM HVAC was so easy, and they arrived on-time in Suffolk County to tackle my issues.”
OG
Olivia G.Oakdale
Verified More Services
Other services in Great River, NY
01Mini Split AC InstallationSame-day Mini Split AC Installation in Great Riv↗02Mini Split AC RepairReliable Mini Split AC Repair in Great River, ca↗03Mini Split AC MaintenanceSame-day Mini Split AC Maintenance in Great Rive↗04Mini Split AC ReplacementSame-day Mini Split AC Replacement in Great Rive↗05Ductless Mini Split SystemsSame-day Ductless Mini Split Systems in Great Ri↗
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