Repair or ReplaceOpen worksheet

Homeowner decision guide

HVAC repair or replace: start with the written diagnosis

When heating or cooling fails, the first useful comparison is not equipment age versus a generic replacement price. It is the cost of a diagnosed repair, the cash due for a fully installed alternative, and the work each quote actually covers. The worksheet keeps the decision open when you have only one quote and updates it when more information arrives.

What changes the answer?

  • Ask which component failed and what test established that diagnosis. A repair price without that answer may not address the underlying problem.
  • Check manufacturer, installer, and service warranties before treating the quoted repair total as your out-of-pocket cost.
  • If you have a replacement proposal, compare its installed total and exclusions with the repair—not just the sticker price of the equipment. Repeated faults and comfort problems warrant a broader system assessment.

Check the written proposal

Look for these items in each quote. If one is missing, ask whether it is excluded or will be priced later.

  • Equipment models and capacity, plus the method used to size them for your home
  • Duct, electrical, venting, or refrigerant work included or excluded
  • Permits, removal, startup checks, and labor warranty

Questions to take back to the contractor

  1. What test confirmed the failed part, and will this repair resolve the complaint?
  2. How was the proposed replacement sized for this house rather than chosen by a rule of thumb?
  3. Which work would trigger a change order after installation begins?

Compare your real numbers

Enter the repair quote now, even if you do not yet have a replacement price. Add up to three complete proposals later and keep their rebates and scope separate.

Use the free worksheet

What this cannot determine

Age, a nearby climate station, and an average electricity rate do not predict the remaining life of your equipment or its savings. The result is a conditional cash comparison and a next question, not an instruction to authorize work.

Sources

Reviewed September 2026. Program eligibility and local requirements should be confirmed before approving work.