If you own a flat, letting your lease drop too low wipes its value quicker than dodgy stone-cladding. Yet in England and Wales, powerful laws let you extend leases for a fair price.

This guide looks at whether you should extend, how it works and has a free Lease Extension Calculator to give an instant steer on how much it’ll cost you. Find the guide here: http://www.moneysavingexpert.com/mortgages/extend-your-lease