Like everywere else some good, some bad, always ask to see previous work, if you can talk to clients. Never pay the full amount up front, and if it's asked for look else were.
One of the biggest problems are builders who say they can do everything! including Electrics these are the most dangerous!
They seem to think because they are in BG they can do what they like these people are wrong and the're days are numbered. Just because you flick a switch and the lights come on does not mean it's safe.
Always ask to see qualifications!!!!!