Quick answer: Repair your furnace if it’s under 12 to 15 years old and the repair costs less than about a third of a new system. Consider replacing it if it’s 15 or more years old, needs repeat repairs, has a cracked heat exchanger, or your heating bills keep climbing. A licensed technician can tell you which makes sense after a safety inspection.
It’s one of the most common questions we get this time of year: “Is it worth fixing, or should we just replace it?” There’s no one-size answer, but there are clear signs. Here’s how our techs walk homeowners through it, with no pressure either way.
How old is too old for a furnace?
Most gas furnaces last about 15 to 20 years with regular maintenance. Past 15, parts get harder to find, efficiency drops, and repairs tend to come in bunches. You’ll usually find the manufacture date on the label inside the furnace door.
A simple way to decide
| If this sounds like your furnace… | Our usual advice |
|---|---|
| Under 12 years, one repair needed | Repair it |
| 12–15 years, repair cost is small | Repair, and start planning |
| 15+ years and a major repair (blower motor, control board) | Get a replacement quote |
| Cracked heat exchanger | Replace. It’s a carbon monoxide risk |
| Repairs 2 or more winters in a row | Replacing usually saves money |
| Uneven heat, rising bills, lots of dust | A new high-efficiency unit may fix all three |
What does a new furnace get me?
Today’s high-efficiency gas furnaces can turn up to 97% of their fuel into heat, compared with around 80% or less for many older units. That often means lower bills, quieter operation, steadier temperatures and fewer surprise breakdowns. As an independent Trane dealer, we install Trane furnaces sized to your home, not just swapped for whatever was there before. Weighing other options too? See heat pump vs. furnace for a Northeast Ohio winter.
What does replacement cost, and can I spread it out?
Cost depends on your home’s size, ductwork, and the efficiency level you choose, which is why we give free in-home estimates with upfront pricing. Right now we’re offering $500 off a qualifying high-efficiency furnace or AC system through December 31, 2026, and financing options are available. See our Trane financing page and coupons for details.
Should I wait until it breaks?
If your furnace is old, replacing it on your schedule in the fall is much easier than during a January breakdown, when you’re cold, rushed, and have fewer choices. If it does quit in the middle of the night, we’re here 24/7 (see our furnace first-start checklist for what to check first).
Want a straight answer on your furnace? Let’s talk.
Call (330) 554-7015 and tell us the age of your furnace and what it’s doing. We’ll give you an honest recommendation, whether that’s a simple repair or a replacement quote. Dee’s Heating & Cooling is family-owned since 1978, with 70+ years of combined experience and 5-star rated service across Wadsworth, Medina, Brunswick, Barberton, Norton, Green, Uniontown and North Canton.
Furnace replacement · Furnace installation · Furnace repair
Frequently asked questions
How long does a furnace last in Ohio?
About 15 to 20 years with yearly maintenance.
Is it worth repairing a 20-year-old furnace?
Usually only for a small, inexpensive repair. Most 20-year-old furnaces are due for replacement.
Do you offer financing on new furnaces?
Yes, financing options are available. Ask for details during your free estimate.
Related reading: Furnace not working after summer? What to check first · How to protect your pipes before the first freeze · Why your water heater works harder in winter