What this noise usually means.
A grinding noise when you press the brake pedal is one of the clearest warning signs your braking system is at the end of its service life. It usually means metal is making contact with metal — your brake pads have worn down to the backing plate and are now scoring the disc itself.
Common causes.
- Brake pads worn throughFriction material has been completely consumed; the metal backing plate is rubbing the disc surface.
- Damaged brake discsHeat warping or deep scoring caused by extended driving on worn pads.
- Sticking caliperA seized caliper piston applies constant pad pressure and creates continuous grinding.
- Trapped debrisA small stone caught between the pad and disc — usually clears within a few revolutions.
How serious is it?
High. Brake performance drops sharply once metal-on-metal contact begins, and discs can become unsafe within days of regular driving.
Typical UK repair cost.
£120–£340 inc. parts and labour at a typical UK independent garage. Pads alone are £80–£160. New discs and pads together usually £180–£340.
Prices are guides only. Individual quotes will vary by make, model, parts and labour rates.
When to contact a garage.
As soon as possible. Most garages offer a free brake check. If the grinding only started today, book a same-day or next-day inspection. If you can already feel reduced stopping power or pulling, request roadside recovery.
Use AutoEar to diagnose this sound.
Record the noise, answer a few quick questions and AutoEar will return a likely diagnosis, safety verdict, urgency and UK repair range — then connect you with a trusted local garage.