Need some minor works, including 1. Power points needed (3 of them for TV etc) at bottom of wall, circuit breaker is on the top side 2. Replace old broken sockets in the kitchen (3 of them) 3 Replace old water heater, install new one 4. Power point extension for additional water heater (3KW, 220V) How much would it cost? Does it makes sense to do it DIY, since hardware shops sell everything nowdays and very cheap. If reasonable offer, then I dont mind giving job to electricians too.