I can recommend Gary Vu (07872 178 044). I called about a lightswitch which needed replacing, he said it wouldn't take long to fix so could pop around first thing the next day. It turned out to be a more complicated problem than it should have been (due to previous dodgy builders!)and took longer to fix and an extra part, however he still charged me the original amount he quoted. He was punctual, very polite and friendly. I wouldn't hesitate to recommend him and would use Gary again in the future for any other electrical problems.