Lowa UK? Through Aaron distribution, been to the factory and seen it done by the people who made them in the first place. Do it through Lowa and the complete boot gets an overhaul including insoles' laces etc. Only they know what glue they have used, what acceleratnt etc. And its relativity cheap.
Aaron Distribution only recommed a few cobblers to carry out Lowa resole work.
From the Aaron website -
To extend the life of your LOWA boots even further, Aaron Distribution Ltd recommend two companies (see below), that carry out a fully professional repair service, which includes the full replacement of the sole unit with the approved and genuine LOWA VibramÂ® tread. A full retread gives renewed grip and posture, and can double the life expectancy of your LOWA footwear. The replacement of rubber rand can also be undertaken.
Lowa do the replacement at the factory in Germany too. Ordinarily the sole and the 1 inch wide rubber band thingy that goes around the boot get replaced. Last time I had a price a couple of years back it was around Euro 65 - 70.....plus postage.
Still cheaper than a new pair at a couple of hundred, and they are ready worn in - add to that also the factory generally refurbs the whole boot if bits and pieces of stitching are needed, and forget to include the old insoles/laces and new ones may come back too.