Down to Earth may not be the cheapest, but they are exceptionally good. We have used them many times in the past and have been able to rely on them to negotiate the various permits needed, without fuss or bother. The staff who surveyed and priced the work were courteous and efficient - and refreshingly plain speaking. The chaps who did the work, were polite, hard-working and super professional. A real credit to the firm. As we live in a Conservation area, getting the right permits is essential and you also need someone who is going to do a proper job. There are shed loads of cowboys out there. Down to Earth are professionals and do it right.