I have a pest control guy that has done numerous jobs for me, but this has not been solved with his treatments thus far. Apparently this is an abnormally difficult eradication - probably German Cockroaches, which are the worst, plus rats or mice infestation that has persisted through a couple attempts already. (also, they have come and "gone" over a few years even after I supposedly closed up their entry points!)
I have contacted "Critter Control" - which sound like 'experts' in this, but they are quite expensive. (reg. roaches $150, German are more. Mice etc. can take $299 and up if they also close up their holes etc.)
Looking for suggestions or referrals - but I need tried and true in this type situation. Anyone?