The second morning in our new house we heard some scratching above the ceiling and quickly found out that while the house had been vacant, squirrels had scratched out a little home in the attic. There had been a similar problem in our rental last year, and our landlord had used Gates. They had seemed happy enough with them that we had asked them for the number when a neighbour had a similar problem - so we had the number handy.
At 7:30am we phoned and left a message, and at 8:30 they phoned us back. At 10:30 Tony was here, looked around, explained the problem, and an hour or so later the house was practically a critter-proof fortress; every possible entrance way was locked up, except for one where he installed a one way door; then they came back a couple days later to seal that up, so that there were no and would be no more unpaying tenants in the attic. During his inspection he found that racoons were trying their hardest to get into a roof vent, and sealed that up, too; one problem solved, one problem prevented.
My fiancee was so pleased with the work that she tried to give Tony a tip, which he politely declined.
We recommend these guys without hesitation.