In reply to PeteDP:
Ticino (or Tessin), Grimsel, Furka and Bregalia in CH spring to mind rather quickly (Känels Plaisir -series might be real contender for you).
From Italy, Sarca valley is indeed the obvious choice. Val di Mello (south of Bregalia) also has some climbs, but some also require some gear, can also be true for Bregalia and most of the Dolomites AFAIK.
Aosta valley also has some bolted multibitch stuff, and a bit more south for better weather Rocca Sbarua just W of Torino has some nice climbs.