Appliance Lifespans: When to Repair vs. Replace
The repair-or-replace debate isn't emotional — it's actuarial. Here's the master lifespan table and the boring math that turns appliance failures into line items instead of crises.
The short answer
Use the 50% rule: if a repair costs more than half the price of a new unit and the appliance is past 50% of its expected lifespan, replace it. Most appliances last 8-15 years. Setting aside roughly $500-$900 per year in an appliance sinking fund covers the whole house.
When should you repair vs. replace an appliance?
The 50% Rule
Replace the appliance if the repair costs more than 50% of a new one AND the unit is past half its expected lifespan. Repair it if it's young, or if the fix is under half of replacement cost. A $600 repair on a 12-year-old $1,000 dishwasher fails both tests — replace it.
Most repair-or-replace arguments happen because people treat appliances as unique heartbreaks instead of what they are: depreciating assets with a known failure curve. Every category has an actuarial life. A refrigerator is not a mystery — it dies somewhere between years 10 and 15, usually with a compressor or sealed-system failure that costs $500 to $1,000 to fix.
The 50% rule combines two questions into one decision. First: is the repair cheaper than half a replacement? Second: is the appliance old enough that the *next* failure is around the corner? When both point the same direction, the answer is obvious. When they conflict — a cheap repair on an old unit — lean toward replacing, because you're about to pay a service-call fee again within a year or two.
The uncomfortable truth: repair technicians are not neutral advisors. A $95 diagnostic fee gets waived if you approve the repair, which nudges toward fixing things that should be retired. Run the math yourself before the tech opens the panel.
Key takeaways
- Repair cost over 50% of a new unit + past half its lifespan = replace.
- Most kitchen and laundry appliances last 8-15 years; water heaters 8-12.
- A whole-house appliance sinking fund runs roughly $500-$900/year for an average home.
- Florida heat and humidity shorten AC and water heater life versus national averages.
- The oldest, cheapest appliances (dishwashers, disposals) almost never justify a big repair.
How long does each home appliance last?
Here is the master reference: expected lifespan, typical replacement cost, and where the 50% repair threshold lands for each major appliance. Costs are national 2026 ballparks for mid-range units installed; Florida labor and delivery often run slightly higher.
| Appliance | Expected life | Replace cost | Repair only if under | Common failure |
|---|---|---|---|---|
| Refrigerator | 10-15 yrs | $1,200-$2,500 | $600 | Compressor / sealed system |
| Dishwasher | 9-12 yrs | $700-$1,300 | $350 | Pump / control board |
| Clothes washer | 10-13 yrs | $700-$1,400 | $350 | Bearings / transmission |
| Clothes dryer | 10-14 yrs | $650-$1,300 | $325 | Heating element / drum |
| Electric/gas range | 13-17 yrs | $900-$2,000 | $450 | Igniter / control board |
| Microwave (built-in) | 8-10 yrs | $400-$800 | $200 | Magnetron |
| Garbage disposal | 8-12 yrs | $250-$500 | Rarely worth it | Motor seize / leak |
| Water heater (tank) | 8-12 yrs | $1,200-$2,200 | $500 | Tank corrosion / element |
| Central AC (FL) | 10-15 yrs | $6,000-$12,000 | $1,500 | Compressor / coil leak |
| Furnace / air handler | 15-20 yrs | $3,000-$6,000 | $900 | Blower / heat exchanger |
Two categories break the pattern. A garbage disposal almost never justifies repair — replacements are cheap and installation is a 30-minute job. And central AC in Florida deserves its own math: the climate strips 2-4 years off the national lifespan, and a failing compressor on a 12-year-old system means you're better off replacing the whole unit before it takes the coil with it. We cover that in the Florida AC lifespan guide.
Why Florida appliances die faster
Heat, humidity, and salt air accelerate wear on anything with a motor, coil, or metal tank. A water heater that lasts 12 years in a dry climate corrodes out in 8-10 near the coast. AC systems run 9-10 months a year here instead of 4-5, so a 15-year national lifespan realistically becomes 10-12.
According to the U.S. Census Bureau, Florida has roughly 10 million housing units, and a large share are older homes on original equipment. If you bought a resale home, assume the previous owner deferred replacements and budget for early failures in your first three years. The true cost of owning a home in Florida breaks down the full picture beyond appliances.
“The homeowners who panic over appliance failures are the ones who never set aside a dime for them. When you're funding replacements monthly, a dead water heater is a Tuesday errand, not a financial event. That mindset shift is worth more than any warranty.”
Todd Paton, Partner, One Home Agent
How much should you save each year for appliance replacements?
Quick answer
Divide each appliance's replacement cost by its expected lifespan, then add them up. A typical single-family home with a full set of appliances plus AC and water heater needs roughly $500-$900 per year set aside. Estimate your own number below.
Interactive calculator
Your annual appliance sinking fund
Enter what you'd pay to replace each appliance today. The calculator spreads that cost across its lifespan so replacements become a monthly line item instead of an emergency.
The number surprises most people because it's smaller than they fear. A home with $17,400 in total appliances spread across their lifespans works out to a manageable monthly bucket — not a $9,000 surprise the week your AC quits in August. The point isn't the exact figure; it's converting unpredictable failures into a boring, funded expense.
The five-minute repair-or-replace checklist
Checklist
0/8Before you approve any appliance repair
Keeping model numbers, purchase dates, and warranty paperwork organized is the unglamorous half of this. Most homeowners can't find the receipt when the compressor dies, which forfeits warranty coverage worth hundreds. Platforms like One Home Agent keep appliance documents and service history in one place so the age and warranty status are a two-second lookup — the documents worth keeping forever list covers what to hold onto.
The bottom line
Bottom line
Appliances aren't emergencies — they're scheduled expenses you already know the timing of. Apply the 50% rule to every repair decision, respect the lifespan table, and fund a small monthly sinking bucket. Do that and no failure ever catches you flat-footed, even in Florida's brutal climate.
Stop losing warranty paperwork the week the AC dies
One Home Agent keeps every appliance's age, warranty, and service history in one place — plus AI agents that handle bills, contractors, and documents. See how it works for your home or your homeowners.
Talk to usFrequently asked questions
The 50% rule says replace an appliance if the repair would cost more than half the price of a new one, especially once the unit is past half its expected lifespan. If the repair is cheaper than 50% and the appliance is still young, fixing it usually makes financial sense.
Sources & further reading