When your furnace breaks in January, you need a clear answer — not a sales pitch. Here’s a straight framework for deciding whether to repair or replace, based on real Denver Metro pricing and your furnace’s age and condition.
Multiply your furnace’s age in years by the cost of the proposed repair. If the result is:
| Furnace Age | Repair Cost | 5,000 Score | Recommendation |
|---|---|---|---|
| 5 years | $400 (ignitor) | $2,000 | Repair |
| 12 years | $650 (blower motor) | $7,800 | Gray area — inspect further |
| 15 years | $850 (control board) | $12,750 | Consider replacement |
| 20 years | $1,100 (gas valve) | $22,000 | Replace |
| 8 years | $300 (capacitor) | $2,400 | Repair |
How do I know if my heat exchanger is cracked?
We inspect the heat exchanger on every service call and tune-up. Signs include unusual smells, soot marks around the furnace, and carbon monoxide detector alerts. If we find a crack, we’ll show you and explain what it means.
Will you try to sell me a new furnace when I only need a repair?
No. We tell you what’s wrong, what it costs to fix, and apply the 5,000 Rule. If repair makes sense, we’ll repair it. If replacement makes more sense, we’ll explain why and let you decide. We don’t work on commission.
What if I get the repair done and something else breaks shortly after?
If that happens, the pattern suggests broader system decline. We’ll reassess at that point and apply what you’ve spent on repairs toward a replacement quote if you want to go that direction.
We’ll diagnose your furnace and give you both paths — repair and replace — with real numbers.
Don't wait 'til it's too late. When the first cold snap hits, everybody calls at once — and a dead furnace on a Sunday night costs a whole lot more than a tune-up. We're booking September furnace checkups now, while the calendar is still wide open.
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