Back Sliding Door Lock

A contractor from Vernon New Jersey says:
I am doing a project in a develpoment and trying to let homeowners use there back sliding doors. The problem is they dont have locks is there an easy replacemt handle that can lock for this style . Not sure how old they are
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Tom from SWISCO responded:

We may be able to help. Looks like your handle says "DORWAL," which is a type of Acorn door. This company isn't in business anymore, so you won't be able to find an exact match on the market. However I've had some customers tell me they were able to get our 82-310 key lock to work. Look this over and see what you think. 

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