Repair Math Is Broken for Cheap Washers: Only 5-16% Clear the Worth-Fixing Threshold

Run every washing machine sold in Belgium and France in 2024 through a model of what people will actually pay to fix one, and 5.1% of the Belgian machines and 16.2% of the French machines come out economically repairable. Most of the rest miss the worth-fixing threshold by a wide margin. In Belgium, 71.4% of washers land in the unlikely column. France, 60.5%.

The work is by Alex Bunodiere and Joost R. Duflou of KU Leuven's Department of Mechanical Engineering, published in Procedia CIRP volume 140, pages 1187 to 1192, out of the 33rd CIRP Conference on Life Cycle Engineering. Open access, funded in part through the Repair++ project. Peer review came from the conference committee rather than a journal.

They built it in two stages. First, six real appliances: three washing machines and three vacuum cleaners, each in an entry-level, mid-range and high-end version, priced from major retailers on a single snapshot date in August 2025. Then a Monte Carlo simulation at 10,000 iterations, sampling purchase prices from fitted national distributions and repair prices from accepted Belgian quotes.

Two willingness-to-pay-for-repair models sit at the center of it: Adler and Hlavacek's 1976 piecewise price-sensitivity formula, which allows relatively more repair spend on cheap goods, and a flat 30.72% of purchase price from Fachbach and colleagues. A repair counted as likely under 90% of that threshold, borderline to 110%, and unlikely above it.

Under Adler and Hlavacek, a washer generally has to have cost more than 600 to 1,000 euros new before repair pencils. Fachbach drops it to roughly 300 to 400 euros. Only the stricter model went into the market-wide simulation; the Fachbach model's 17.66% standard deviation is wide enough to make nearly everything unlikely at one bound and nearly everything likely at the other.

Where the Worth-Fixing Threshold Falls on Real Machines

A Proline at 199 euros was the cheapest Belgian washer in the set. The popular mid-range pick was a Bosch at 499 euros, the premium machine a Miele at 2,299 euros. Against mean out-of-warranty repair prices of 96 euros for a 15-minute job and 155 euros for a 60-minute one in Belgium, and 86 euros under France's fixed-price schemes, the entry machines came back unlikely almost every time. For those units, the authors write, repair prices "frequently equalled 50-100% of the purchase price." Mid-range machines sat on the fence depending on which model you applied, while high-end units were consistently repairable in both countries.

The simulation put France at 16.2% likely to be repaired, against a measured out-of-warranty repair rate for large household appliances of 16.1% in 2019.

A pricing model that lands that close to a real national statistic has earned some trust.

Vacuum cleaners came out worse. About 67% across both markets were unlikely to be repaired, and in Belgium it was 89.6%, leaving 2.5% likely. Scaled to national sales, the authors count more than 3.5 million washers and vacuums a year in France and about 1.3 million in Belgium heading for replacement, in their words, "not because they cannot be repaired, but because repair is economically irrational under current market conditions."

France's repairability and durability indices spanned only 2.2 points across the three washers, so even the cheapest machine still scored mid-range. Anyone counting on that label to steer a buyer toward a fixable unit is counting on a very short ruler.

European labor rates and parts channels don't match American ones, so a 300-euro cutoff doesn't apply directly to a US shop. The deciding variable is the same: original purchase price. Age, brand, and fault don't dictate whether a job is worth the truck roll, yet most shops still qualify calls on symptoms. The 50% rule and its failure modes is the same idea approached from the other direction. This paper is the quantitative version.

France runs fixed-price repair schemes and a 50-euro repair bonus on washers; Belgium runs variable time-based pricing and no subsidy. The result was a repair rate a bit more than three times higher. American shops can't conjure a subsidy. Price predictability is another matter, and it sits entirely within your control. It's the strongest outside evidence I've seen for flat-rate pricing over time and materials in residential appliance work.

A declined in-home quote on a large appliance costs the customer 69 to 150 euros, and the authors single out willingness to pay for a quote as the first barrier to any repair happening at all. That puts a hard number on the diagnostic fee. If your fee is the gate, the phone script that explains it is doing more revenue work than anything on your truck.

Average repair prices hide provider and fault variation, and retailer catalogue display order stands in for sales popularity. Their French repair-price distribution is an adjusted Belgian one. And none of the willingness-to-pay models account for appliance age, the specific fault, or what the machine is worth used.

Their next target is the quote fee itself. Right place to look, and the one piece a US shop could test on its own phones next week. A German household survey by Hennies and Stamminger found separately that expensive washers simply last longer, so the premium machines clearing this threshold are also the ones still running when the call comes.

Sources

Bunodiere, A., Duflou, J.R. (2026). "Repair or replace? A Market-Based Analysis of Household Appliance Repair Viability in France and Belgium." Procedia CIRP, 140, 1187-1192. doi:10.1016/j.procir.2026.05.200 (open access full text: KU Leuven Lirias)

Hennies, L., & Stamminger, R. (2016). "An empirical survey on the obsolescence of appliances in German households." Resources, Conservation and Recycling, 112, 73-82. sciencedirect.com