Ski Boot Buy/Exchange in the North east/Yorkshire

[Highlander]

I've heard there's a few of these places dotted around the country but I'm having trouble tracking them down!!

Need beginners boots for DS1

Not heard of this....BUMP!

Am about to buy some boots for DS1 - Decathalon have them for £40 odd, which will work out cheaper for us than hiring...but not sure that is the best option. Would be delighted to have some second hand ones. He is 6 and a size 11 or 12. We are in North London.