When treating a flea infestation, a simultaneous undertaking of the following should be carried out to achieve a successful outcome -
pet treatment
ensuring your pet and its bedding has been cleaned and treated accordingly
premises cleaning
steam clean and vacuum floors as well as mow lawns
insecticidal application
Should you be vacating a rental property and have kept pets on the premises, the managing real estate may have requested for this treatment to be carried out in accordance with your lease agreement.
The flea treatment must be the last item of maintenance undertaken so the chemical is undisturbed.