Additional keys can only be supplied to the registered owner or authorised representative of the owner on receipt of a written signed request.
Unauthorised persons will not be able to get keys cut. So you can give a key to a builder, cleaner, gardener, tenant etc. knowing that they will be unable to get another key cut, giving you total peace of mind.
At M.D. LOCK & KEY we have our own registered key systems which is exclusive to us, meaning that keys are cut and issued by us and no other locksmith.