Heating & Cooling First
HVAC Service & Repair in Bryn Mawr
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.



Healthy air is part of a comfortable home, and your HVAC system is the engine behind it. PJ MAC HVAC Service & Repair brings 24-hour AC and heating repair to Connaughtown, PA from our Bryn Mawr office, along with the filtration and humidity control that keep indoor air clean. Call our family-owned team at (610) 424-6452. With 32 years of experience and EPA 608 certified technicians, we look after both the comfort and the air in your home.
Filtration and Humidity Done Right
Poor indoor air in Connaughtown often shows up as dust that never settles, stuffy rooms, or air that feels heavy in summer and parched in winter. We improve it with properly matched filtration, humidifiers, and dehumidifiers, and by keeping coils clean so the system is not circulating mold. As a passing note, when ducts are genuinely fouled, air duct cleaning can help, but most gains start at the equipment.
- โSummer humidity that lingers in rooms even with the AC on
- โWinter dryness from furnace heat that irritates skin and sinuses
- โPersistent dust pointing to a weak or bypassed air filter
- โMusty odors at startup from a dirty evaporator coil
Cooling Repair That Pulls Out Moisture
A working air conditioner does double duty here: it cools and dehumidifies. When the AC blows warm, freezes up, or runs without drying the air, we check the refrigerant charge, coil, and airflow. We service Lennox, Carrier, Trane, Goodman, and the rest, restoring both temperature and that easier-to-breathe feel.
Heating Repair and Comfortable Winter Air
A furnace running hard dries out a Connaughtown home in winter. We repair gas and oil furnaces, boilers, and heat pumps, and on every furnace and boiler call we inspect the heat exchanger for cracks that could leak carbon monoxide. Pairing a repair with a whole-home humidifier keeps the air comfortable rather than harsh.
Mini-Splits, Ventilation, and Fresh Air
Better air sometimes means rethinking how it moves. Ductless mini-splits include their own filtration and let you condition individual rooms without recirculating stale air through old ductwork, which is a strong fit for additions and homes that never had ducts. We install and repair these systems, balance airflow so no room is starved, and make sure thermostats and controls keep humidity in a comfortable range. The result is air that feels fresher in every season, not just cooler or warmer.
Serving Connaughtown & Nearby Main Line Communities
From Bryn Mawr we serve Connaughtown and the wider Montgomery County (Main Line) area, including Bryn Mawr, Rosemont, Penn Valley, Narbeth, and Ardmore. Homeowners across the area get the same focus on healthy, comfortable air.
To make your Connaughtown home both comfortable and clean-breathing, call PJ MAC HVAC Service & Repair at (610) 424-6452 for 24/7 HVAC repair and indoor air quality help.
Areas We Serve from Bryn Mawr
- Bryn Mawr, PA
- Rosemont, PA
- Penn Valley, PA
- Narbeth, PA
- Ardmore, PA
- Gladwyne, PA
- Allgates, PA
- Miquon, PA
- Roseglen, PA
- Penn Wynne, PA
- Wynnewood, PA
- Connaughtown, PA
- Haverford, PA
- Lower Merion Township, PA
- Montgomery County, PA
Served by our local office: HVAC Repair in Bryn Mawr, PA
