HVAC repair or replace calculator
Pressure-test the decision, not just the repair bill
A cheap repair can be good value on the right system; a costly repair can still be right when replacement requires major redesign. Use this screen to identify which questions need evidence before you authorize either path.
Decision screen
Test the repair-versus-replace case
This screen weighs cost, age, reliability, comfort, and warranty. It cannot diagnose equipment or identify a safety defect.
Age matters, but coil condition, furnace condition, and refrigerant availability do too.
Range: new to 30 years old.
Range: $200–$12,000. Include labor and required related parts.
Interpretation
What the decision signal does—and does not—say
The signal is a transparent screen, not a prediction of remaining life. It gives more weight to age, a repair that consumes a large share of a broad replacement benchmark, repeat failures, and ongoing performance problems.
It does not know whether the diagnosis is correct, whether a smaller repair is possible, or whether the proposed replacement fixes the root cause. Those questions require a qualified on-site evaluation.
- Ask for the failed part, test result, and repair warranty in writing.
- Check manufacturer and installer warranty coverage before paying.
- For a large repair, get a second diagnosis—not only a second sales quote.
Continue with the full repair or replace guide.