Ask us anything
Should lockshield valve be open or closed?
As it moves further away from the boiler, the Lockshield valve will have to open a little more. It is not uncommon for the Lockshield valve in the first radiator to open around a rotary room, while in the last radiator it may have to open completely.
FREE Virtual Home Repair
We'll diagnose your issue over call or video and virtually walk you through the repair — all for free if you're a new customer! .