After 3 failed attempts at an appointment due to dangerous weather conditions & extreme cold, we finally got Sean to be able to access one of 11 roof vents!!! That is, hopefully, the only one compromised by our resident squirrels! We are hoping he’ll be able to access the rest, as a preventative measure, after we get some milder weather! Thank you, Sean! Anne, thanks for your support in this matter! Update: Sean came back, as promised, to cover the remaining 10 roof vents of which 2 more were entry points for the squirrels. Thank you for your diligence!