I cover the following areas but please contact me if you are outside of these and I'll see what I can do not help. If I am not able to help you, I may know someone who can and I'll happily pass on their details. 

Hitchin, Letchworth, Baldock, Royston, Stotfold, Biggleswade, Stevenage, Ofley, Stopsley, Lilly, Hexton, Purton, Welyn, Welyn Garden City, St Ippolytes. Kimpton.