There is a website called street life once you log on pretty self explanatory,you can asked some local recommend a mobile car mechanic hope this is helpful
Brake pads are easy. Go on the Europarts website. Enter the registration number of your car and click brake pads. The site will show you all the pads suitable for your car. Order and they will deliver the same day. Jack up the car and take off the wheel. You'll see the disc and pads. Pull the brake caliper off the disc so you can get to the pad. Fasten the caliper to the frame with a bit of bungy so it doesn't pull down on the ABS sensor cable. Now you simply undo the clip holding the old brake pad and replace it with the new one. Push the caliper back into place, replace the wheel and you're good to go.
If you don't fancy that simply google 'mobile car mechanic boxhill surrey uk' and a list appears.
If all else fails and you have a branch of Kwikfit near you, you could try ringing them. They do brakes up here in sunny South Yorks; must be the same dahn Sahf!
Don't know if this is ok to post. I am looking for a mobile mechanic on Boxhill, Surrey. Want to go to my Granddaughters Christening in Yorkshire, but need brake pads doing on car or can't go! Any help is mechanics telephone numbers much appreciated. Thank You