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 older stone homes of the Main Line are beautiful, but they ask a lot of a heating and cooling system, and that is where PJ MAC HVAC Service & Repair comes in. Our Bryn Mawr office sits at 850 W Lancaster Ave, and the team can be reached 24 hours a day at (610) 424-6452. We provide air conditioning and heating repair, new system installation and ongoing maintenance for the homes and businesses of Bryn Mawr, including the many older properties that need a thoughtful approach to comfort.
Comfort Solutions for Bryn Mawr's Older Homes
Many of Bryn Mawr's classic stone and masonry houses were built without modern ductwork, which makes whole-home cooling and even heating a challenge. Ductless mini-split systems are often the ideal fit, delivering quiet, efficient comfort to rooms and additions that central air can never reach without major renovation. We assess each home individually, and where ducts do exist, we make the most of them. The result is even temperatures without tearing apart the character of a historic house.
Around-the-Clock AC & Heating Repair
When something goes wrong, the Bryn Mawr line is answered 24/7. Weak airflow, warm air at the vents, water around the unit, banging or buzzing sounds, frequent cycling or a furnace that will not stay lit are all worth a call. Our technicians find the underlying fault, from refrigerant leaks and tired compressors to failed capacitors, frozen coils and ignition problems, and repair it properly. We service all major brands, Lennox, Carrier, Trane and Goodman among them.
System Installation & High-Efficiency Replacement
When it is time to replace aging equipment, PJ MAC provides free installation estimates and sizes every system to the home rather than guessing. High-efficiency air conditioners, furnaces and mini-splits run quieter and use less energy when they are matched and installed correctly. We remove the old equipment and install the new system cleanly, then show you how to get the most from it.
Heating Repair for Furnaces, Boilers & Heat Pumps
Older Main Line homes often run on boilers or gas and oil furnaces, and PJ MAC services them all, along with modern heat pumps. We inspect heat exchangers for cracks that can release carbon monoxide, address pilot and ignitor faults, and quiet noisy blowers. Whether your boiler has lost pressure or your heat pump is struggling on a cold morning, we restore safe, even heat to the house.
The Full Range of HVAC Services
- โAC repair and diagnostics
- โAir conditioning installation and replacement
- โHeating and furnace repair (gas, oil, boilers, heat pumps)
- โFurnace and heating installation
- โHVAC maintenance and tune-ups
- โDuctless mini-split systems for homes without ductwork
- โThermostats and modern controls
We also provide air duct cleaning and dryer vent cleaning for customers who want cleaner air and safer, more efficient systems.
Serving Bryn Mawr and the Main Line
From our Lancaster Avenue office we serve Bryn Mawr and the surrounding Main Line communities in Lower Merion Township and Montgomery County, including Rosemont, Haverford, Ardmore, Wynnewood, Gladwyne, Penn Valley and Narberth. These neighborhoods share a housing stock of older, often ductless homes, and our technicians know how to keep them comfortable in every season.
Decades of Experience Behind Every Visit
PJ MAC HVAC Service & Repair is family owned and operated with more than 32 years of experience. Owner Doug is a Master HVAC Technician, and we hold Pennsylvania License #PA157168 and New Jersey Master HVACR Contractor License #19HC00595900. Our Bryn Mawr office carries a 4.9-star rating from 42 Google reviews.
If your AC has quit, your heat is out, or you are weighing a mini-split or full system replacement, PJ MAC in Bryn Mawr is here 24 hours a day. Call (610) 424-6452 to schedule service or request your free installation estimate.
Licensed, Insured & Verifiable
PJ MAC HVAC Service & Repair is a fully licensed and insured HVAC contractor โ you can verify us before we ever set foot in your home. We hold Pennsylvania Contractor License #PA157168 and New Jersey Master HVACR Contractor License #19HC00595900, and our technicians are EPA 608 certified to handle refrigerant safely and legally. Bryn Mawr homeowners can confirm those credentials with the state before scheduling โ we put the numbers in writing because the right contractor has nothing to hide.
How Our Free Estimate Works
- 1Call or request an appointment โ tell us what's going on and when works for you.
- 2A technician evaluates the system on-site and confirms the real problem (no phone guesses).
- 3You get a clear, written, no-obligation estimate before any work begins.
- 4We do the work only once you approve it โ repair, replacement, or maintenance, your call.
Installation estimates are always free. New equipment is covered by the manufacturer's warranty.
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
Frequently Asked Questions
Is PJ MAC HVAC licensed to work in Bryn Mawr, PA?
Yes, completely. We hold Pennsylvania license #PA157168 and NJ Master HVACR Contractor license #19HC00595900, with EPA 608 certified technicians for refrigerant work. Those license numbers are real and easy to verify with the state.
Do you offer 24/7 emergency HVAC service in Bryn Mawr?
We do, every hour of every day. When you call (610) 424-6452 a live person answers, not a recording. No-heat and no-cool emergencies get bumped to priority so your Bryn Mawr home stays comfortable.
How does your free estimate work?
Start with a call, and we arrange an on-site evaluation of your equipment. You get a written estimate with zero obligation, and we only begin the work after you approve it. Installation estimates come at no charge.
What HVAC brands do you service in Bryn Mawr?
All the leading brands, including Lennox, Carrier, Trane, and Goodman, whether you need a repair, a new install, or seasonal maintenance. We service what you have without pushing a brand change.
Should I repair or replace my AC or furnace?
We consider the age and efficiency of your system and whether the repair cost is justified versus its remaining value. You get a straight answer rather than a sales pitch, and a replacement estimate is free if that is the wiser route.
Do you do heating and furnace repair too, or just AC?
Full HVAC, heating and cooling both. We handle gas and oil furnaces, boilers, heat pumps, and AC, and many older Main Line homes lack ductwork, where ductless mini-splits can fit well. We also flag any cracked heat exchanger for carbon monoxide safety.
What areas around Bryn Mawr do you serve?
We cover Bryn Mawr plus Rosemont, Ardmore, Haverford, Gladwyne, Wynnewood, and Narberth throughout Lower Merion Township and the Main Line in Montgomery County. Just ask if your town is nearby.
Why choose PJ MAC HVAC in Bryn Mawr?
With 32-plus years in the field, family ownership, and Master HVAC technician Doug at the helm, we understand the older stone homes around Bryn Mawr. A 5.0-star rating from 176 Google reviews speaks to the work, and we are licensed, insured, and EPA certified.
