The details worth knowing.
Plan a one-off clean with intensive tasks explicitly included or excluded.
Specify rooms, surfaces and priority tasks.
Agree frequency, access and inclusions in a written scope.
Ovens, windows, carpets and specialist work should be separately identified.
Questions for an operating business
Confirm suitability, inclusions, access, actual availability, charges and applicable policies before making a commitment. The real business must approve every factual claim.