The average cost of your tenancy cleaning depends on 3 main factors. The size of the property. More specifically, the number of rooms. The condition of the property. However, this applies only if the rental is extremely neglected. The addition of specialized services such as hot water extraction cleaning of carpet/upholstery, exterior window washing, or even garden clearance (if required by the tenancy agreement). The property cleaning services at Kleen Crew provides the best possible value to cost.