Try ALTBERG, which is in Richmond, Near Catterick barracks, they a Website aswell, if you go to the factory shop they will measure your feet so that you get the best fit, they know there stuff, dont be tempted to buy a cheap pair, a good pair of boots will cost more initially but are worth their weight in gold, had my latest pair for over 4 years now, there as goos as the day i bought them and have been worn almost daily. HIAX and LOWES are also good brands. Other people i know bought cheaper boots thinking they were getting a bargian, 4 to 5 pairs later they realise they were wrong.
When I stand before God at the end of my life, I would hope that I have not a single bit of talent left, and I could say, "I used everything you gave me". - Erma Bombeck.