We had a bit of a DIY mishap which resulted in a complete loss of power. Dan was brilliant and couldn't have been more helpful - he and his colleague visited on Friday morning and stayed for a couple of hours trying to isolate the fault, then returned on Tuesday with another colleague to repair it. We only bought our home quite recently and don't really know what we're doing, and Dan has been absolutely brilliant throughout - clear, punctual, always willing to explain to us what the problem was and what he was doing, and very reasonably-priced, and he'll be back next month to replace the fuseboard. We were very impressed!