This was one of the hardest jobs I’ve ever done. They had all kinds of quotes with netting and electric shock wire but liked my permanent approach. We pulled out 35 bags of bird droppings from the area between the buildings then power washed everything and framed stainless wire mesh all around.
The treated wood was afixed with tap cons and double braced to the facia. The job can be seen at a new vet clinc just opposite an indian restaurant on the south side of bloor across from christe pitts park. It was dangerous and dirty but our clients had just had enough of the birds. The droppings on the inside went 1 foot deep 40 feet across. They were hauled up by rope then lowered to the street and brought to the dump. It took us 4 days.