★★★★★
“After another service couldn't fix my mini split, I reached out to MJM HVAC. They pinpointed the issue and had it working perfectly near State Line!”
MD
Mike D.State Line
Verified4.7 ★Average rating
13,983+Jobs done
24/7Emergency service
Licensed · Upfront options · Clean work areas · Written guarantees
GREENCASTLE
AREA
MMMMMAREA
Primary Greencastle response zone
Greencastle 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.
17225
Popular neighborhoods
State Line · Marion · Waynesboro · Mont Alto · Mercersburg · Wayne Heights · Chambersburg · Rouzerville · Fayetteville · Pen Mar · Fort Loudon · Blue Ridge Summit
Nearby cities
Check my address →State Line · Marion · Waynesboro · Chambersburg · Wayne Heights · All Pennsylvania cities
Reviews
What Greencastle Customers Say
4.9★★★★★verified reviews
★★★★★
“When my mini split AC broke down unexpectedly, MJM HVAC was there within the hour. They diagnosed the problem quickly and had it running in no time!”
MT
Marcus T.Greencastle
Verified★★★★★
“The compressor replacement I needed was backed by a warranty from MJM HVAC. They honored it and returned without charge - amazing service!”
ER
Ethan R.State Line
Verified More Services
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