Heating & Cooling First
HVAC Service & Repair in Norristown
PJ MAC HVAC Service & Repair is a full-service HVAC contractor โ 24-hour AC and heating repair, installation and maintenance come first, backed by NADCA-standard air duct and dryer vent cleaning.



A good repair visit is methodical, not a guess-and-replace gamble. PJ MAC HVAC Service & Repair brings that approach to 24-hour AC and heating repair in Yerkes, PA, working out of our Norristown office. From the moment you call (610) 672-3056, there's a clear path from your description of the problem to a system that runs again โ here is what that looks like.
How a Cooling Service Call Unfolds
When we arrive at a Yerkes home, we start with what you've noticed โ warm air, odd noises, a unit that won't start โ then test the system end to end. We check refrigerant pressures, electrical components like capacitors and contactors, airflow at the coil, and the condition of the compressor before naming a cause. Only then do we quote the fix. Because we diagnose rather than assume, you don't pay for parts the system didn't need, and we work on all major brands including Lennox, Carrier, Trane, and Goodman.
The Same Discipline on Heating Repairs
Heat calls follow the same step-by-step path. We confirm the symptom โ no ignition, short bursts of warm air, a boiler banging, a heat pump that can't keep up โ and trace it through ignition, fuel delivery, controls, and airflow. PJ MAC repairs gas and oil furnaces, boilers, and heat pumps across Yerkes. Every gas furnace gets a heat-exchanger inspection, since a crack can leak carbon monoxide, and we report exactly what we find.
Maintenance That Heads Off the Next Call
Once your system is running, a tune-up keeps it that way. A seasonal maintenance visit in Yerkes covers cleaning, electrical checks, refrigerant verification, and airflow โ the same components that cause most breakdowns. It's the simplest way to catch a weak part before it strands you, and it keeps a system running closer to the efficiency it had when it was new. We also handle thermostats, ductless mini-splits, and indoor air quality work for Yerkes homes that need more than a straight repair. Our technicians are EPA 608 certified for proper refrigerant handling, and any new equipment we install carries manufacturer warranties on new equipment.
Serving Yerkes and Montgomery County
- โNorristown, where our office is located
- โFairview Village and Eagleville nearby
- โWorcester to the north
- โEast Norriton and West Norriton
- โSurrounding Montgomery County communities
PJ MAC HVAC is family owned and operated with 32+ years of experience, owner Doug is a Master HVAC Technician, and we hold PA License #PA157168 and a 5.0-star rating from 176 Google reviews. To put a careful, step-by-step technician on your Yerkes HVAC problem, call (610) 672-3056 any time, day or night.
Areas We Serve from Norristown
- Norristown, PA
- Fairview Village, PA
- Worcester, PA
- Eagleville, PA
- East Norriton, PA
- West Norriton, PA
- Audubon, PA
- Bridgeport, PA
- Center Square, PA
- Blue Bell, PA
- Broad Axe, PA
- Lafayette Hill, PA
- Conshohocken, PA
- King of Prussia, PA
- Arcola, PA
- Yerkes, PA
- Worcester, PA
- Jeffersonville, PA
Served by our local office: HVAC Repair in Norristown, PA
