★★★★★
“The Mini Split AC Replacement job performed by MJM HVAC in Port Jefferson was exceptional. Every detail was taken care of professionally.”
MS
Megan S.Port Jefferson
Verified hydro cleaning service in Port Jefferson, NY
hydro cleaning service in Port Jefferson, NY
4.7 ★Average rating
13,983+Jobs done
24/7Emergency service
Licensed · Upfront options · Clean work areas · Written guarantees
PORT JEFFERSON
AREA
MMMMMAREA
Primary Port Jefferson response zone
Port Jefferson 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.
11777
Popular neighborhoods
Belle Terre · Port Jefferson Station · Poquott · Mount Sinai · East Setauket · Terryville · Setauket · Miller Place · Old Field · Stony Brook University · Sound Beach · Stony Brook
Nearby cities
Check my address →Port Jefferson Station · Belle Terre · Mount Sinai · Poquott · Terryville · All New York cities
Reviews
What Port Jefferson Customers Say
4.9★★★★★verified reviews
★★★★★
“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 Port Jefferson Station.”
RH
Robert H.Port Jefferson Station
Verified★★★★★
“I received a fair quote for a ductless Mini Split system installation with no hidden upsells. MJM HVAC was transparent throughout the process.”
AW
Andre W.Port Jefferson
Verified More Services
Other services in Port Jefferson, NY
01Mini Split AC InstallationReliable Mini Split AC Installation in Port Jeff↗02Mini Split AC RepairReliable Mini Split AC Repair in Port Jefferson,↗03Mini Split AC MaintenanceSame-day Mini Split AC Maintenance in Port Jeffe↗04Mini Split AC ReplacementSame-day Mini Split AC Replacement in Port Jeffe↗05Ductless Mini Split SystemsReliable Ductless Mini Split Systems in Port Jef↗
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