24/7 Emergency HVAC in Philadelphia, PA
A person answers the phone at any hour, every day of the year. In Philadelphia housing that matters more than it does in most of our service area, because the buildings themselves raise the stakes — shared walls, old chimney venting, and heating equipment sitting in basements below occupied floors.
PJ MAC dispatches emergency calls from our Naudain Street office. We work on gas and oil furnaces, boilers, heat pumps and cooling equipment across every major brand.
Rowhome no-heat calls in January
The winter call volume here is dominated by ignitor failures, flame sensors that need cleaning, and pressure switch faults traced to a blocked or sagging vent pipe. Those are components we carry, and most are resolved on the visit.
What raises urgency in a rowhome is that a failed heating system in a party-wall building can put pipes at risk quickly, particularly on an unheated third floor or in a kitchen extension against an exterior wall. If your heat has failed and temperatures are below freezing, that is a call to make now rather than in the morning.
The two situations to treat as immediate
If you smell gas, leave the building first and call the gas utility from outside before calling anyone else. Do not operate switches on your way out.
If a carbon monoxide alarm sounds, get everyone out and call 911. Do not assume it is a faulty detector. In older Philadelphia housing the combination that produces genuine CO risk — an aging heat exchanger and an unlined or deteriorated masonry chimney — is common enough that we check for it on every heating call as standard.
Summer: the third floor and the attic unit
Cooling emergencies here cluster around two things. The first is the top floor becoming genuinely unsafe during a heat advisory, which in a rowhome with a failed system happens fast. The second is water: a blocked condensate drain on an attic air handler puts water through a ceiling, and it does not stop on its own.
If you see staining or dripping below attic equipment, switch the system off at the thermostat and call. Running it further only adds water.
Worth trying before we arrive
- ✓Thermostat batteries — a dead battery is a common overnight no-heat cause
- ✓The breaker for the furnace or air handler, and the separate breaker for the outdoor unit
- ✓The furnace service switch, which looks like a light switch near the equipment
- ✓The filter — if it is grey and matted it can shut a system down on its limit
- ✓On a high-efficiency furnace, whether the exterior vent and intake pipes are blocked
What we will not do
If we find a cracked heat exchanger or a serious venting fault we shut the appliance down and explain why, regardless of the hour or the weather. Running a compromised combustion appliance overnight to keep a house warm is how people are harmed. Where that happens we will help you arrange safe interim heat.
You will also be told what the call costs before anyone is dispatched. Urgency is not leverage.
Philadelphia 24/7 Emergency HVAC — Questions We Get
Do you really answer overnight in Philadelphia?
Yes — a person answers 24 hours a day, seven days a week, every day of the year, and calls are dispatched from our Naudain Street office. You will get a realistic window when you call rather than an optimistic one.
My heat failed and it is below freezing. How urgent is that in a rowhome?
Urgent. A failed system in a party-wall building can put pipes at risk quickly, particularly on an unheated third floor or in a kitchen extension against an exterior wall. That is a call to make now rather than in the morning.
My carbon monoxide alarm is sounding.
Get everyone out of the building and call 911 — do not assume it is a faulty detector. In older Philadelphia housing the combination of an aging heat exchanger and an unlined or deteriorated masonry chimney is common enough that we check for it on every heating call.
There is water coming through the ceiling under my attic AC.
Switch the system off at the thermostat and call. That is a blocked condensate drain, it will not stop on its own, and running the system further only adds more water to the ceiling.
What should I check before calling?
Thermostat batteries, the breakers for both indoor and outdoor units, the furnace service switch near the equipment, and the filter. On a high-efficiency furnace also check the exterior vent and intake pipes for blockage. A fair number of after-hours calls resolve on that list.
Will I know the cost before you come out?
Yes. You will be told what the call costs before anyone is dispatched, not after the work is done.
Who serves Philadelphia
Philadelphia calls are handled out of our Philadelphia office at 130 Naudain St #202, Philadelphia, PA 19147. Call (610) 424-6447 — we answer 24 hours a day.