I used AAA Professional Wildlife Control (also known as "All About Animals" Professional Wildlife Control) as squirrels had chewed through the fascia of my roof and got into the attic. While Gislin (owner/operator) got rid of the squirrel and her young he left an opening which small birds continued to use to enter the attic. The "1-way" door he installed was just an opening in the wire mesh angled to be narrow so that the mother could get out but not return - she would stab herself in her shoulders if she tried!!! I called Gilsin the owner/operator to return and close the hole and he just said something like "that's a recall" and never returned. When I had another squirrel problem 6 months later, GTA Wildlife Removal & Pest control not only fixed the problem properly (real 1-way door which they returned to remove and patched with a shingle),they also fixed the mess that AAA Professional Wildlife Control (Gislin) had left.