The real question isn't the price
It's not "shop or not", it's do I know what I'm doing, and do I have the tool. A botched repair costs more than the shop: a scratched brake disc, a stripped screw, a cable tightened badly that fails on a descent.
The decision table
| Repair | Difficulty | Verdict |
|---|
| Inflate, adjust saddle height | Easy | Do it yourself, always |
| Adjust gears | Easy | Do it yourself, see derailleur adjustment |
| Change pads / cables | Medium | Do it yourself if you have the tools |
| Fix a puncture | Easy | Do it yourself, see roadside puncture repair |
| Bleed hydraulic brakes | Hard | Shop, unless you're equipped |
| Bearings, badly buckled wheel | Hard | Shop |
| E-bike electrical diagnosis | Hard | Shop (manufacturer tools) |
The 3-question rule
Before you decide, ask yourself: is this a safety part (brake, steering)? Do I have the specific tool (torque wrench, bleed kit)? Can I mess it up without breaking it? If you answer no, no, no—head to the shop.
For everything else, doing it yourself saves labour costs (£25–£50/hour) and, more importantly, gives you roadside independence.
AI shifts the grey area
Many repairs that "belong in the shop" become doable when someone guides you step-by-step, with the right torque specs and the pitfalls of your specific model. That's exactly what L'Atelier's AI mechanic does: you describe your bike, it gives you the tailored procedure, the order of steps, and the safety warning when you need to stop.
Upshot: you do what's reasonable yourself, and you save the shop for the real workshop jobs. For costs, see how much a bike service costs at the shop.