Insurance or surveys available to protect when buying a house?
I'm looking to buy a house which will leave me with little spare cash available if any repair work is required. Are there any types of surveys that will thoroughly check various aspects of a house so that I am protected from nasty surprises such as electrical re-wiring, water pipe work, broken boilers, leaking roof, dodgy conservatories etc? Or even better, are kind of insurance that I can take which offers protection after the purchase, say for a period of 12 months?
I've spoken to a couple of friends and they recommend putting aside £20-30k in case anything major needs doing after moving in. This got me quite worried and swaying me to look for new builds, which are quite limiting at the moment.