I had problems with sparrows nesting in a couple of vents ( we are renting a home and obviously the previous owner did not mind the noise of these pests). Peregrine arrived on time as was confirmed with their office and Jason was excellent. I could not believe the amount of nest material he pulled out of the vents. A service issue on one vent cover was quickly handled by Peregrine within 48 hours of my call 3 months later. Highly recommend this company!