I'm a British builder living near Dobrich so I can't help but if I was nearer I would charge 100 leva a day whereas local non skilled would charge 20 lev and take much longer and do a terrible unsafe job. I don't think my charge is a rip off as I supply all my own tools (flying over someone won't get tools over at a cheap price). I came here to retire having had my own building business in the UK where I charged £32 an hour. I can supply photographs of my work before and after. However there are many DIY expats who think they can be builders here as there is little control from building inspectors, in fact I have just left another Bulgarian site as I was fed up with giving correct advice and having a stupid woman who admits she learnt everything by watching tradesmen at work telling people how to do things in correctly and utterly unsafe.
Obviously there are good builders as most hotels are to a high standard except for the plumbing, I don't believe there is a single trained plumber in Bulgaria