Trying to work out if I should in stall security or screen doors and would appreciate advice/feedback!!! I have a 3 pack of units in Albion, Melbourne with sliding rear doors and standard hinged front doors. None of the doors have security doors or fly wire doors. Had request from one tenant for a security sliding door and a request for a fly wire sliding door from another tenant. The main reason for the requests are so they can leave the back doors open with out undersirables (insect and human) gettiing in. Contacted a number of door companies and the prices so far are around $$350 for mesh sliding door, $350-400 for security sliding doors with similar prices for front doors. I'd like to make the units more comfortable for tenants but installing the doors is not cheap so I'm not sure which is the best way to go. At this stage I'm tempted just to install sliding doors in the rear. What would you do?