Back in February our neighbor complained there are squirrels in the attic. These guys came and did half of the job and charged them $1000 with the 5 years warranty.
They squirrels came again. These guys were called and they said that possibly squirrels came from other houses attics. They gave us estimate to solve the problem for $1600!!!
While the issue was just they forgot to block one of the pipes on the roof so squirrels will not get back.
Don't call them.