Heating & Cooling First
HVAC Service & Repair in Bethlehem
PJ MAC HVAC Service & Repair is a full-service HVAC contractor — 24-hour AC and heating repair, installation and maintenance come first, backed by NADCA-standard air duct and dryer vent cleaning.
PJ MAC HVAC Service & Repair runs a Bethlehem office at 811 Linden St, Bethlehem, PA 18018, serving the Lehigh Valley with full-service air conditioning and heating care. Whether your central air gives out during a muggy summer stretch or your furnace stops on a cold Northampton County night, our line at (610) 672-3055 is answered for 24-hour AC and heating service. We are family owned and operated with more than 32 years in the HVAC trade.
Around-the-Clock Cooling & Heating Repair in Bethlehem
Bethlehem weather swings hard between Valley summers and bitter winters, so we keep technicians available 24 hours a day. We track down the real cause of weak airflow, warm air, frozen coils, refrigerant leaks, failing capacitors, and tired compressors, and we explain the repair before we start. For heating we handle no-heat emergencies, rough ignition, and short cycling. We work on all major brands, including Lennox, Carrier, Trane, and Goodman.
System Replacement & New Installation
When repair no longer makes sense, we install a replacement built for your home. Every installation starts with a free estimate and a proper load calculation, because guessing at size leaves you with high bills and uneven comfort. From the older homes near downtown Bethlehem to newer builds out toward Nazareth and Palmer Township, we match high-efficiency equipment to the space, pull out the old unit, and set up the new system to run clean.
Furnace, Boiler & Heat Pump Service
Heating systems across the Lehigh Valley vary by neighborhood and age, and we service them all. Our team repairs and installs gas and oil furnaces, maintains the boilers common in the area's older housing, and works on heat pumps for efficient year-round comfort. We inspect heat exchangers, ignitors, pilots, and safety controls, with close attention to carbon monoxide protection on every combustion appliance.
Full-Line HVAC Care in the Lehigh Valley
PJ MAC covers the complete range of comfort work for Bethlehem households:
- ✓Central AC repair, installation, and tune-ups
- ✓Gas, oil, furnace, and boiler heating service
- ✓Heat pumps and ductless mini-split systems
- ✓Programmable and smart thermostats
- ✓Humidifiers, dehumidifiers, and indoor air quality systems
- ✓Preventive maintenance plans
We also provide air duct cleaning and dryer vent cleaning as additional services for homeowners looking to cut dust and improve airflow.
Serving Bethlehem and Nearby
From our Linden Street office we serve Bethlehem and the surrounding Northampton County and Lehigh Valley communities, including Hellertown, Nazareth, Tatamy, Stockertown, Forks Township, Palmer Township, and Freemansburg. If you live in or around the Valley, we are close enough to respond fast.
Why the Lehigh Valley Trusts PJ MAC
PJ MAC HVAC Service & Repair is a family owned and operated company with more than 32 years of experience. Owner Doug is a Master HVAC Technician holding Pennsylvania License #PA157168 and New Jersey Master HVACR Contractor License #19HC00595900. Bethlehem-area customers have given us a 4.8-star rating across 19 Google reviews, earned through clear communication and dependable work.
For AC or heating help anywhere in Bethlehem, call PJ MAC HVAC Service & Repair at (610) 672-3055. We offer 24-hour service and free estimates on every new installation.
Licensed, Insured & Verifiable
PJ MAC HVAC Service & Repair is a fully licensed and insured HVAC contractor — 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. Bethlehem homeowners can confirm those credentials with the state before scheduling — we put the numbers in writing because the right contractor has nothing to hide.
How Our Free Estimate Works
- 1Call or request an appointment — 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 — repair, replacement, or maintenance, your call.
Installation estimates are always free. New equipment is covered by the manufacturer's warranty.
Areas We Serve from Bethlehem
- Bethlehem, PA
- Stockertown, PA
- Tatamy, PA
- Nazareth, PA
- Middletown, PA
- Hellertown, PA
- Durham, PA
- Ferndale, PA
- Revere, PA
- Frenchtown, PA
- Milford, PA
- Bloomsbury, PA
- Pohatcong Township, PA
- Georgetown, PA
- Forks Township, PA
- Ottsville, PA
- Upper Stewartsville, PA
- Palmer Township, PA
- Bath, PA
Frequently Asked Questions
Is PJ MAC HVAC licensed to work in Bethlehem, PA?
Yes. Our Pennsylvania HVAC license is #PA157168, we also hold NJ Master HVACR Contractor license #19HC00595900, and our technicians are EPA 608 certified. You can verify any of these with the state, and we encourage you to.
Do you offer 24/7 emergency HVAC service in Bethlehem?
Yes, around the clock. Dial (610) 672-3055 and an actual person will answer whether it is the middle of the night or a holiday. We prioritize no-heat and no-cool situations so a Bethlehem family is never stuck without comfort for long.
How does your free estimate work?
Give us a call to set up a visit, and a technician evaluates the system on-site instead of guessing over the phone. You receive a written, no-obligation estimate and we proceed only with your approval. Estimates on installs are free.
What HVAC brands do you service in Bethlehem?
We work on all the major brands, Lennox, Carrier, Trane, Goodman and the rest, for repair, installation, and maintenance. Your current system is no problem regardless of the manufacturer.
Should I repair or replace my AC or furnace?
We weigh the system's age, its efficiency, and the cost of the repair against the value of the unit before recommending anything. The advice is honest, not sales-driven, and if replacement wins out the installation estimate is free.
Do you do heating and furnace repair too, or just AC?
Full HVAC service here, heating included. We repair gas and oil furnaces, boilers, heat pumps, and AC. If a heat exchanger is cracked we will let you know immediately, since that is a real carbon monoxide concern in older Lehigh Valley homes.
What areas around Bethlehem do you serve?
Besides Bethlehem we cover Nazareth, Hellertown, Bath, Tatamy, Stockertown, and Forks Township across the Lehigh and Northampton County area. If you are just outside that list, ask us.
Why choose PJ MAC HVAC in Bethlehem?
Family owned for over 32 years and run by Master HVAC technician Doug, we bring real experience to every job. Our 5.0-star rating across 176 Google reviews reflects how we treat Bethlehem customers, and we are licensed, insured, and EPA certified.