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 system that struggles to keep up usually does it while burning more energy than it should. PJ MAC HVAC Service & Repair provides 24-hour AC and heating repair across Center Square, PA from our Norristown office, restoring not just comfort but the efficiency a healthy system should deliver. Reach a technician any hour at (610) 672-3056.
Cooling Repairs That Restore Efficiency in Center Square
When a Center Square air conditioner runs longer to do the same job, the cause is usually fixable: low refrigerant from a slow leak, a dirty or frozen coil restricting airflow, or a worn capacitor making the compressor work harder than it should. Our technician measures pressures, inspects the condenser and evaporator coil, and tests the electrical components to find what's dragging the system down. EPA 608 certified for refrigerant handling, we service every major brand, including Lennox, Carrier, Trane, and Goodman.
Heating That Doesn't Waste Fuel
A furnace that cycles oddly or a heat pump that runs nonstop is often telling you it's working too hard. PJ MAC repairs gas and oil furnaces, boilers, and heat pumps across Center Square. We inspect burners, the igniter, and the flame sensor on a furnace and always check the heat exchanger for cracks that could leak carbon monoxide; on a heat pump we verify the defrost cycle and reversing valve so it isn't running inefficiently through the cold.
Airflow, IAQ, and a Word on Ducts
Comfort in Center Square isn't only about temperature; how air moves and what it carries matters too. Restricted airflow strains the equipment and leaves rooms uneven, while indoor air quality concerns often come down to filtration and humidity control. We can address thermostats, humidifiers and dehumidifiers, and ductless mini-splits to even out comfort while easing the load on the system. Where it's warranted, air duct cleaning is also available as part of keeping a Center Square home's air moving cleanly.
- โRestoring proper refrigerant charge and airflow for efficient cooling
- โClearing dirty coils and filters that make the system overwork
- โVerifying heat pump and furnace cycling for clean operation
- โThermostats, humidity control, and ductless options for steadier comfort
Serving Center Square & Nearby Montgomery County
From our Norristown base we cover Center Square and the surrounding Montgomery County communities, including Norristown, Fairview Village, Worcester, Eagleville, and East Norriton. Local familiarity means our technicians reach Center Square ready to get your system running cleanly again.
Family owned and operated with 32+ years of experience, PJ MAC HVAC fixes the problem and the efficiency behind it. Call (610) 672-3056 day or night for 24/7 AC and heating repair in Center Square.
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
