The 50% rule, and why it is only a starting point
A widely used rule of thumb says that if the repair costs about half or more of what a comparable new appliance costs, replacement is usually the better value. It is useful because it is simple. It is incomplete because it ignores age, condition, energy use and what you would actually buy instead.
A better approach combines three questions: how big is the quote compared with a new one, how much of the appliance’s expected life is gone, and what else is wrong or likely to fail soon?
Rough lifespan planning figures
These ranges are rough planning numbers commonly cited across the industry. Real life varies with the model, how hard it is used and how well it is maintained.
| Appliance | Typical working life (years) |
|---|---|
| Refrigerator | 10–15 |
| Chest or upright freezer | 12–20 |
| Dishwasher | 9–12 |
| Range, oven or cooktop | 13–18 |
| Over-the-range or built-in microwave | 8–12 |
| Garbage disposal | 8–12 |
| Range hood | 10–15 |
| Ice maker (stand-alone) | 6–12 |
Try the calculator
Enter the numbers from your quote. It will not make the decision for you, but it shows where you sit against the rule.
What the calculator cannot see
- Installation and delivery. A new appliance may need a new water line, a different outlet or cabinetry changes. Add these to the replacement cost.
- Energy and water use. A much older refrigerator or dishwasher can cost more to run than a modern one.
- Other faults. Rust, a failing door seal and a noisy compressor all point to more repairs ahead.
- Parts availability. Discontinued parts can make a good appliance impossible to fix.
- Safety. Cracked cooktop glass, scorched wiring and gas leaks are not things to run until they fail. Our problem guides list the warning signs.
Repairs that are often worth it, and often not
Often worth repairing
- Fans, thermistors and gaskets on a sound refrigerator.
- Igniters, switches and elements on a good range or cooktop.
- Drain pumps, valves and latches on a dishwasher under about ten years old.
- Door and fan parts on a built-in or over-the-range microwave.
Often better to replace
- Sealed-system repairs on older refrigerators and freezers.
- Cracked glass cooktops on older units.
- Control-board failures on budget dishwashers.
- Leaking disposal housings and small countertop microwaves.
Questions to ask the technician
- What exactly failed, and why?A clear answer shows the diagnosis is real.
- What does the quote include?Ask for parts and labor separately, and whether the diagnostic fee is applied.
- Is anything else close to failing?Technicians often have a view on the remaining life.
- What is the warranty on the repair?Ask for parts and labor in writing.
- Is the part in stock?Waiting weeks may tip the balance.
For a diagnosis and an estimate, find a technician through Austin ApplianceFix or send a request. Our service pages, such as refrigerator repair and dishwasher repair, say more about each appliance. If you are still unsure, kitchen repair help in Austin starts with a short request.
Questions people ask
Is it ever worth repairing an old refrigerator?
Sometimes. A modest repair, such as a fan, sensor or gasket, on a unit that is otherwise in good condition can add several years. A sealed-system repair on a very old unit usually cannot justify the cost.
Does the 50% rule include the diagnostic fee?
It is better to include it. Compare your total cost of repair, diagnostic fee included, with the full cost of a replacement, including delivery and installation.
Should I replace an appliance just because it is old?
Not necessarily. Age is a signal, not a verdict. Working appliances that are in good shape are worth keeping, especially when repairs are inexpensive.
Last updated October 13, 2026. This page offers general information to help you describe and understand a problem; it is not a diagnosis. Always follow your appliance manual and local safety rules.