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.



The housing in Lower Merion Township was built to last โ stone-and-plaster homes, generous square footage, and mechanical systems that have been added to and reworked across decades. That character is exactly what makes HVAC repair here a job for people who know older buildings. PJ MAC HVAC Service & Repair provides 24-hour AC and heating repair in Lower Merion Township, PA from our Bryn Mawr office, and you can reach a technician at (610) 424-6452.
Cooling Systems in Substantial Older Homes
Many Lower Merion Township houses were never designed around central air, so cooling was retrofitted later โ long line sets, ductwork threaded through finished spaces, and condensers tucked beside stone walls. When that kind of system fails, the symptoms can be subtle: uneven cooling, a compressor straining against an oversized load, or a refrigerant leak in a hard-to-reach run. We diagnose and repair air conditioners of every brand, Lennox, Carrier, Trane, and Goodman included, and we know how these grand old homes are actually plumbed for air.
Heating That Matches the Building
Older Lower Merion Township homes lean heavily on boilers and gas or oil furnaces, and some have radiator heat that long predates the air conditioning. We repair all of it โ boilers, gas and oil furnaces, and heat pumps โ and we treat the carbon-monoxide and heat-exchanger inspection as part of the job, not an upsell, because combustion safety in an older house is non-negotiable.
Where Ductless Often Makes the Most Sense
When a stone home has no ductwork to spare, forcing in conventional central air rarely ends well. Ductless mini-splits fit these buildings without tearing into plaster, and we install them where they belong. We offer free estimates on new equipment, which carries manufacturer warranties, so a Lower Merion Township homeowner weighing repair against replacement gets a clear picture either way.
Covering Lower Merion Township and Its Neighbors
Lower Merion Township anchors a stretch of the Main Line in Montgomery County, and our Bryn Mawr team serves it together with the communities right alongside it.
- โBryn Mawr
- โRosemont
- โPenn Valley
- โNarbeth
- โArdmore
- โGladwyne
Credentials That Matter in a Home Like Yours
We're family owned and operated, with 32+ years of experience and owner Doug, a Master HVAC Technician, on the license. Our technicians are EPA 608 certified for refrigerant handling, the work is backed by PA License #PA157168, and a 5.0-star rating from 176 Google reviews reflects how well that combination holds up in Lower Merion Township homes like yours.
For HVAC repair in Lower Merion Township that respects the home it's working on, call PJ MAC HVAC Service & Repair at (610) 424-6452 โ 24/7 for AC and heating.
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
