Guides & tools
Plain-English electrical guides
Straight answers to the questions we get asked most — from what a rewire costs to what the landlord rules in Wales actually say.
PricesHow much does a rewire cost in Cardiff?Typical prices, what affects them and how to compare quotes.Free toolDoes my house need rewiring?A free seven-question check.Free toolRewire quote builderPlan sockets, lighting and extras room by room.Homeowner guideFuse box types explained – do you need a new consumer unit?How to tell what kind of fuse box you have — rewireable fuses, cartridge fuses, MCBs, split-load RCD boards or RCBO boards — and when it's worth upgrading to a modern consumer unit.Landlord guideLandlord EICRs in Wales – what the rules sayWhat landlords in Wales need to know about electrical safety under the Renting Homes (Wales) rules — EICRs every five years, giving contract-holders a copy, smoke and CO alarms, and what the codes mean.