I phoned for a quote to cap a 15mm gas pipe and carry out pressure test. The quotation was £80 per hour. Fair enough, I thought he would only be here 30 minutes maximum, all was prepared, so expected about £40 plus VAT. The engineer arrived at 3pm, did a pressure test first, to check no existing leaks - all ok. Cut the pipe, capped it with a 15mm compression fitting. Re-tested - all ok. Job complete, filled out the forms, all done in 20 mins, but I was still charged £80 plus VAT. I guess I was too polite to question this, but it did seem a little unfair given they advertise as 'No call out fee'. I didn't see anything about a minimum time call out?