A broken appliance creates an unfair contest. The repair quote is money due now for something already sitting in the house, while the replacement price seems to buy a clean slate. The useful comparison is not old versus new. It is the cost, disruption, and uncertainty attached to the next stretch of useful service.
That shift matters because a $500 repair is not automatically foolish on an older machine, and a $1,200 replacement is not automatically prudent because it has a warranty. The repair may buy several ordinary years. The replacement may require delivery, installation, new connections, disposal, financing, or changes to surrounding cabinets. Both choices buy time, and both can create costs beyond the first number on the page.
The worksheet below is meant for a non-emergency decision after safety has been addressed. If there is smoke, leaking gas, damaged wiring, flooding, structural danger, or another immediate hazard, stop using the equipment and follow qualified safety guidance. Cost comparison comes after people and property are protected.
Start with the failure, not the age
Ask for the failed part, the work required, and what the diagnosis does not cover. A machine can be old with one isolated, repairable problem. It can also be fairly new with a failure that signals wider damage. Calendar age is useful context, but the condition of the major systems and the availability of parts do more work in the decision.
- What failed, and how certain is the diagnosis?
- Does the quote include labor, parts, service fees, tax, and a return visit if the first repair does not solve it?
- What warranty applies to the part and the labor?
- Are other major components showing wear, leaks, noise, rust, error codes, or declining performance?
- Are replacement parts normally available, or is the repair dependent on scarce or used parts?
- Would the repaired item remain safe and suitable for the household's actual needs?
Build the all-in price for each door
The repair door begins with the complete quote, then adds costs required to keep the current item working. The replacement door begins with the actual model the household would buy, not the cheapest advertised model, then adds everything required to make it usable and remove the old one.
| Repair door | Replacement door |
|---|---|
| Diagnostic and service-call fees | Purchase price after ordinary discounts |
| Parts, labor, tax, and permits when required | Sales tax, delivery, and installation |
| Related work required for the repair | Cords, hoses, mounting kits, vents, or adapters |
| Temporary workaround during repair | Required electrical, plumbing, cabinet, or floor work |
| Likely additional repair during the comparison period | Removal, disposal, and temporary workaround |
| Value of any usable warranty coverage | Financing cost, if any |
Do not include costs that are identical either way. If the household needs three laundromat visits while waiting for a technician and would need the same three visits while waiting for delivery, that inconvenience does not favor either door. Include only the difference, or show the same amount on both sides so it cancels visibly.
Choose one honest comparison horizon
A common mistake divides the repair by two guessed years and the replacement by ten optimistic years. The smaller annual number then reflects different time periods as much as different choices. Pick one horizon long enough to include the next plausible decision, such as three or five years, and map what each path is likely to require during that same period.
Suppose a repair is expected to keep the current appliance usable for two more years, but the worksheet uses a five-year horizon. The repair path cannot stop at year two. It needs an estimated replacement in year two, minus whatever value remains in that replacement at the end of year five. Otherwise the repair path receives two years of service while the replacement path is charged for an asset that still has life left after year five.
A five-year fictional example
Consider a fictional household comparing a $460 repair with a replacement that costs $1,260 installed. The current appliance is expected to run another three years after repair. If it then fails, the household estimates that a comparable replacement will cost $1,350 installed. These are invented worksheet amounts, not typical prices or predictions.
| Five-year cost | Repair now, replace in year 3 | Replace now |
|---|---|---|
| Immediate work | $460 repair | $1,260 replacement |
| Likely additional repair | $180 | $0 |
| Later replacement within horizon | $1,350 | $0 |
| Estimated value remaining at end of year 5 | − $720 | − $540 |
| Illustrative five-year ownership cost | $1,270 | $720 |
The repair path is $460 plus $180 plus $1,350 minus $720, which equals $1,270. The replace-now path is $1,260 minus $540, which equals $720. Under those assumptions, replacing now has the lower five-year economic cost by $550.
The remaining-value lines prevent the timing of the purchase from distorting the comparison. At the end of year five, the appliance bought in year three is younger and is assumed to retain more usable value than the one bought today. The values do not need false precision. Use a low and high range, and notice whether a reasonable change reverses the result.
Do not confuse cost with cash timing
The fictional replacement may have the lower five-year cost and still be impossible to pay for safely this month. The repair requires $460 now. Replacing requires $1,260 now. A household that would need expensive debt, miss an essential bill, or empty its only emergency cash should run a separate cash-flow test instead of letting the long-run result erase the short-run constraint.
| View | Repair now | Replace now |
|---|---|---|
| Cash needed immediately | $460 | $1,260 |
| Additional cash in year 1 | $0 in the base case | $0 in the base case |
| Cash likely needed in year 3 | $1,350 | $0 |
| Five-year economic cost after remaining value | $1,270 | $720 |
Add financing once, in the right place
If either choice is financed, add interest and required fees to that path. Do not add both the purchase price and the full loan payments, because the payments contain repayment of the same purchase price. For cash flow, map the payments by month. For economic cost, use the price plus financing costs and fees.
A promotional payment can make replacement look gentle without making it cheap. Record the total amount that would be repaid, the date any promotional period ends, and the consequence of missing the required terms. If those facts are unclear, the financing option is not ready to be compared.
Estimate the next failure as a range
A technician may be able to identify worn components, but nobody can promise the next five years. Use three cases rather than disguising uncertainty as one precise forecast. The low case assumes the repair is the only work. The middle case includes the most plausible additional repair. The high case includes an earlier replacement or another major component failure.
| Fictional repair case | Five-year repair-path cost | Difference from $720 replace-now path |
|---|---|---|
| Current repair lasts all five years | $460 less $100 remaining value = $360 | $360 lower than replacement |
| Base case: repair, $180 later work, replacement in year 3 | $1,270 | $550 higher than replacement |
| Repair fails in one year, then replacement | $460 + $1,300 − $600 = $1,160 | $440 higher than replacement |
The choice flips between the optimistic repair case and the other two fictional cases. That does not automatically settle the decision. It shows which belief carries the most weight: whether the current repair is likely to buy the full five years. That is the question to take back to the diagnosis and service history.
Treat efficiency claims carefully
A new appliance may use less energy or water, but the label difference is not the household's savings. Estimate annual use from the household's actual pattern, apply the relevant local utility prices, and compare the current model with the specific replacement. Keep any changing rates or rebates dated and sourced when using them. Leave the line at zero when the evidence is too weak.
Multiply the annual difference by the years in the shared horizon, then avoid subtracting savings that begin only after a later purchase from every year. If the repair path replaces the appliance in year three, its higher operating cost applies only until that replacement occurs.
Price disruption without pretending every hour is wages
Repair and replacement can claim time, missed work, meals out, laundromat trips, spoiled food, or days without a necessary household function. Put actual cash consequences in the totals. List inconvenience separately unless the time would truly replace paid work or create a known care cost.
- How many visits or delivery windows does each path require?
- Can the household function safely while waiting?
- Would either path require paid meals, laundry, storage, transport, or care?
- Could installation uncover electrical, plumbing, venting, flooring, or cabinet work?
- How costly would another failure be during a particularly busy or vulnerable week?
Use a reversible pause when the answer is close
When the item can remain safely out of service, a short pause can improve the decision. Get a written diagnosis, seek a second quote when the first is uncertain or large, price the complete replacement installation, and check whether a temporary workaround is tolerable. A day spent gathering comparable numbers can be valuable; an open-ended delay that creates damage or recurring emergency spending is not.
Write the decision rule before the sales conversation
A clear rule makes it harder for urgency, embarrassment, or a showroom upgrade to rewrite the plan. The rule might say that the household will repair if the diagnosis is isolated, the base case is competitive over five years, and the cash payment preserves its minimum emergency floor. It might say the household will replace if safety remains uncertain, parts are unavailable, or the repair path loses under both the base and difficult cases.
- Confirm that the item is safe to assess rather than an emergency to stop.
- Get the failure and full repair scope in writing.
- Price a replacement that actually meets the household's needs, fully installed.
- Choose one comparison horizon and complete both paths through its end.
- Run low, base, and difficult repair cases.
- Map immediate cash separately from economic cost.
- List disruption, reliability, fit, and safety beside the dollar result.
- Choose the least-regrettable path the household can safely fund.
Repair versus replace is not a referendum on whether the old item has already served long enough. Money already spent is gone either way. The decision begins today: what each door costs from here, how much useful service it is likely to buy, and which uncertainty the household is better prepared to carry.
Unless I say they are mine, the examples are made up and rounded so the math is easier to follow. Your income, obligations, and risks will be different. This is education, not personal financial advice.
Your turn
What happened at your house?
Which repair-or-replace decision has been hardest in your household, and what piece of information would have made it easier?
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