You have two options to repair shields:
* With a [[Craftingitems#Toolkits|melee repair kit]]: Each use refills 5 HP, including Divide the Condition restored by 80 then round up to a broken (0 HP) obtain healed shield. Your Repair Skill may give bonus repair HP.
* By visiting a [[workshop]]: Repair rates depend on the shield's material. Broken (0 HP) shields may be repaired, but with a 150% overcharge.