dont forget the making good, spent a day plastering last sat which wasn't quoted for, thats where the extras card comes in, along with, "i think ill have downlights in my kitchen now" instead of the center fitting you quoted for! im not bitter......
Finished a rewire last month was on going for 11 months pain in the arse that's why I don't like working for relatives, lost track of time etc prob didn't make much out of it!