The repair shop and the moment mending stopped being worth it

Most explanations of the repair trade stop at the point where it starts to matter. This one carries on.

The maths used to favour mending

When a television cost several weeks of wages and a technician cost a few hours of them, repair was obviously rational. Devices were designed accordingly: serviceable, with replaceable components, published schematics and standard parts. As manufacturing costs fell and labour costs rose, the lines crossed, and replacement became cheaper than diagnosis.

Nobody decided appliances should be disposable; a price ratio moved and the behaviour followed.

Design followed the economics and then reinforced them

Once repair was uneconomic, there was no commercial reason to design for it, and much subsequent design actively obstructs it. Glued assemblies, proprietary fasteners, unavailable parts, paired components and software locks all raise the cost of a repair independently of the fault. Manufacturers cite safety, water resistance and miniaturisation, and those arguments are partly genuine and partly convenient.

A feedback loop between economics and design is much harder to break than either one alone.

Diagnostic knowledge was local and is now scattered

Repair shops accumulated knowledge of which models failed how, which is enormously efficient and existed nowhere but in the technician's head. That knowledge now lives in online forums and video repositories, which is more accessible and less reliable.

Community repair events have partially institutionalised it, and they explicitly aim to teach rather than just to fix. The knowledge survived the shops by moving into an unpaid volunteer layer.

Right-to-repair rules are changing the inputs

Several jurisdictions have introduced requirements around spare parts availability, repair information, and design for disassembly for certain product categories. Scope, product coverage and enforcement vary widely, and the rules are recent enough that their effect is not yet well measured. Early requirements have focused on appliances and electronics, with vehicles and agricultural machinery contested separately.

It is one of the few areas where a disappearance is being legislated against directly.

Waste is the argument that carried

Electronic waste volumes and the embodied carbon of manufacturing turned repair from a consumer issue into an environmental one. That reframing is what moved the debate into legislation, since consumer preference alone had not.

The embodied energy in a device is generally a large share of its lifetime impact for many product categories, which makes lifespan the key variable. The strength of that claim varies substantially by product, so blanket statements about it should be treated with caution.

Some repair never went away

Cars, bicycles, watches, boilers and musical instruments retained repair economies because the devices are expensive, durable and regulated. The common factor is a device costly enough that a technician's hour remains cheap by comparison. That is a useful test for predicting which of today's products will still be repairable in twenty years.

In hindsight, where the ratio holds, the trade survives without any legislation at all.

The takeaway

Nothing became unrepairable. A ratio between the price of a thing and the price of an hour moved, and the shops closed on the wrong side of it.

Nobody decided to stop. It simply stopped being worth the effort.