Most Victorian leases that allowed a pet require a flea treatment before the keys go back, and the agent wants an invoice with the property address printed on it. That single piece of paper is the most common reason a bond gets held over pest control.
Book it after the carpets are cleaned and the place is empty. An empty house is the best time for this work, with full access to skirtings, wardrobes and subfloor and nothing to shift. If there were cockroaches or a rodent problem during the tenancy, get the lot done in one visit on one invoice. The rental stock through Newcomb, Whittington, Breakwater and St Albans Park makes up most of this work.