Nick arrived right at the set time, was very polite, easy to talk to and knowledgeable. He did an inspection of the possible entry points on the roof, chimney, under the roof at the eavestroughs, and also looked at my neighbour's roof, as my house is semi-detached. Due to the fact that he found no signs of entry at any of the inspected areas he provided me advice on how next to proceed and also what to be on the alert for. There was no charge for all of this!
If at any point in the future I have reason to believe there may be wildlife which has managed to gain entry, I would definitely contact this company to deal with it.