I found Martin online – contacted him on 21st February and arranged a home visit for him to come the next day and repair a smashed iPhone 5c screen, and rear camera/home button for a 5s phone. He phoned in advance to confirm his visit, turned up on time, very polite and friendly, and supremely efficient. Didn’t charge me for the 5s camera as it just needed re-attaching inside, and the 5c was as good as new within 30 minutes. Much better, and cheaper, service than the local phone mending shop. I’m sure I will be using his services again.