I cannot recommend Altberg in any way.
I stupidly, despite having been warned, took in my excellent 4-season Scarpas to be re-soled, and at the same time ordered a custom fitted pair of motorbike boots, at a high price.
They ruined my Scarpas (the model above the Mantas), glued on (badly) some completely rubbish "commando soles" which literally were smooth after a seven day hut-hut in the Pyrenees. Carros de Foc. They refused any responsibility, so I did what I sh0uld have done, and sent them to the official Scarpa repairer. Who sadly said that Altberg had destroyed them by grinding off the original Vibram sole, together with some internal shock absorbing parts, only stopping when they hit the steel shank, also cutting away some important internal stitching holding the upper to the lower. And charged me more than the correct repairer would have. Ruined, loads of life left in them, just needed new soles, after probably six months of hard use over five years, in the Pyrenees, Alps and Dolomites, on hard rock.
The motorbike boots were totally wrong, despite their so-called measuring and bespoke manufacture. Far too tight, narrow, toes stubbed inside. Tried to fob me off with some wafer-thin insoles (even the standard insoles were of the cheapest nastiest "quality") No good, still couldn't even get my feet into except wearing the thinnest socks..Then couldn't pull them off again without assistance. So left them to be stretched on a last in some sort of pressure cooker that they have for that, they wanted them for at least two weeks, couldn't give me a date, "they'll be ready when they are ready, no if you want us to post them back to you that'll cost you £25". So, a month later I dropped in to collect them. No they had done nothing. Took them a while to find them too. Told them that I'd be passing by again in a weeks time and they had better be ready. Dropped in as agreed, they were exactly the same, no evidence to me of any stretching having occurred. Asked for my money back, no chance. Stupidly hadn't used a credit card. Gave them to my GF who they sort of fit with two pairs of thick socks, when on the back of my bike. These are bike boots, so not necessarily for doing much walking in. However the Alpinestars that I bought afterwards are pretty good for that.
FWIW they don't make their off the shelf boots in Richmond. That is outsourced somewhere else. Supposedly the bespoke fitted boots are still made in Richmond by hand, but I saw no evidence of that with my bike boots. Nor any actual boot making going on. Frankly I think Timpsons could have done a better job trying to re-sole my old Scarpas.
Currently using an excellent pair of Zamberlan 4 season boots, and a new set of Anatom Q3 Braeriach hill walking boots, which, early days yet, I'm impressed with. They aren't particularly expensive and ISTM better made, and thought through, than some of the other choices. Made for Anatom somewhere, I think in Italy, but so far (I only got them in November) I'm impressed. They a good stiff hill/mountain walking boot, full leather construction, good ankle support, and definitely waterproof.
Worth a look anyway.
Anatom Q3 Braeriach Boot | Review - Outdoors Magic