7 signs it's time to replace your furnace

Age, noises, bills and repairs — when replacement beats another fix.

Furnaces rarely fail without warning. These are the signs we see most often before a breakdown:

1. Age. Many furnaces last around 15–20 years. Past that, parts get harder to find and efficiency is well below today's models.

2. Rising gas bills without a change in how you use your home.

3. Frequent repairs — if you've called for service two or three winters in a row, it's worth pricing a replacement.

4. Uneven heat or rooms that never get warm.

5. Short-cycling: the furnace turns on and off every few minutes.

6. Noises like banging, squealing or rattling.

7. A yellow or flickering burner flame, soot, or a carbon monoxide alarm — call a technician right away.

We'll inspect your furnace and give you an honest repair-vs-replace answer with both prices in writing.

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