If you've fallen out of love with your house then you might want to give architects and interior designers Denise O'Connor and Catherine Crowe a call. This pair are now to be known as the Design Doctors, and they specialise in practical and clever design changes that can improve people's quality of life. Over the course of this brand new series the girls will be travelling the country to show families how they can make the most of their homes, from minor lighting changes to major expansions.