An €800 repair looks cheaper than a €4,000 replacement until you count the years each one buys. You give the component, its age, and the quote you are holding. You get the year you are in, and the working behind it.
You give the component, its age, and the repair quote you are holding. You see which costs less per year of service, and how much life a repair can honestly buy at this age. The method is the one property managers run: cost divided by the years it buys, not the size of the two numbers side by side.
Pick a component, its age, and the repair quote to see the year you are in.
The money is one input, not the decision. See the repair-or-replace guide for the third option (waiting, with a date) and the four times the arithmetic gets overruled: safety, energy rules, insurance, and a third failure in a year.
This runs on typical market prices and lifespans, not your own component. Signed in, appkeep runs the same method on your house's real age, cost, and history.