24/7 + HVAC + HOT WATER = McCORRY COMFORT
Furnace failing, cracked heat exchanger, or just time for an upgrade? McCorry Comfort replaces gas and oil furnaces throughout Philadelphia, Montgomery County, Bucks County, and Delaware County. Emergency replacement available 24/7 — no heat in winter is not a situation we leave you in.
A cracked heat exchanger allows carbon monoxide to mix with heated air in your home. This is a life-safety issue. If a technician has identified a cracked heat exchanger, shut the system down and call us immediately at (215) 379-2800. We can often get there the same day. Do not continue operating a furnace with a cracked heat exchanger.
Gas furnaces typically last 20–25 years in the Philadelphia area. After 20 years, efficiency has dropped significantly and failures become more frequent and unpredictable.
A carbon monoxide risk. A cracked heat exchanger cannot be safely repaired — the furnace must be replaced. Don't operate a furnace with a confirmed crack.
An expensive repair on an aging furnace rarely makes economic sense. If you're staring at a major repair bill, we'll help you do the math on repair vs. replace.
One repair is maintenance. Two or three in recent years means the system is at end of life. Components fail in sequence — not in isolation.
An aging furnace loses AFUE efficiency. A modern 96% AFUE furnace vs. an old 78% unit can cut heating costs by 20%+ every year — month after month.
Rooms that won't heat, a furnace that cycles on and off rapidly, or heat that just doesn't feel right are all signs of a system that's struggling or failing.
AFUE (Annual Fuel Utilization Efficiency) measures how much fuel becomes heat. Higher AFUE = lower gas bills every month.
We'll recommend the efficiency tier that makes economic sense for your home — not always the most expensive option.
We replace furnaces of any brand — whatever you have, we can remove it and install the right replacement.
"Furnace died on the coldest night of the year. Called McCorry at 9pm — technician was here by 11pm. Confirmed the heat exchanger was cracked and it needed to be replaced, not just repaired. New furnace was in by the next afternoon. Can't thank them enough."
"They talked me through the efficiency options and helped me pick the 96% unit that made the most sense for our situation. Gas bills have dropped noticeably since. The install was clean and the crew was professional."
"Replaced furnace and AC at the same time. They handled the whole project in two days. Matched systems, great warranty, and they handled all the permits. Zero headaches."
Replace if: over 20 years old, cracked heat exchanger (safety issue — do not operate), repair cost exceeds 50% of replacement, or repeated breakdowns in recent years. We'll give you a straight answer when we assess it.
Yes. Carbon monoxide can enter your living space. This is not a repair situation — it's a replacement situation. Shut the system down and call us at (215) 379-2800.
One day for a standard gas furnace swap. Oil-to-gas conversions or installs requiring significant venting changes may take longer. We'll give you an accurate timeline when we assess your home.
If your AC is also aging (10+ years), doing both at once saves labor and ensures matched, warranted systems. We'll assess both and give you an honest recommendation — if the AC is fine, we'll say so.
Depends on your venting setup and how long you plan to stay in the home. 80% makes sense in some configurations; 96% pays back over time in gas savings. We'll run the numbers with you. Learn more about heating systems →
Yes. Call (215) 379-2800 any time — nights, weekends, holidays. No heat below freezing is an emergency we take seriously.
