General electrics - Electrical job in Dalston, East London

Job Description

I need some basic electrical work done in my flat. I refurbished it 2 years ago, and used an electrician, but I don't think he did a very good job. A few specific job are:
- The oven doesn't work. When I tried to unplug it I discovered that the plug had melted and fused, so I had to pull the whole cover plate off the backplate. Socket needs to be replaced but also need to find out why this happened so it doesn't happen again.
- Electric shower fluctuates, sometimes it cycles between very hot water and cold repeatedly. Other times it works fine - I think there is some issue with the electrics.
- I would like a socket which is in a kitchen cupboard moved - ie joint and extend the cable to a new surface mounted socket higher up the cupboard. The cable extension can also be surface mounted, as it's within a cupboard.
- I have a storage heater which comes on quite early - is there a way to change the time it starts releasing heat?
- I would like an additional socket added near my bathroom - there are cables in the wall supplying heated towel rail etc so this should be fairly straightforward once wall is opened up.

As there are a variety of smallish jobs, I think it would be helpful to me to know what it would cost for a half day or day of your time - I suspect it would take about a day's work to get through most of the items?

Thanks,

Phillip