On average the price for a small office costs around $51.46, a small office can be defined as less than 1,000 sqft which can take a cleaner around one hour to complete. Nationally pricing is calculate by square footage of the office area which costs between $0.09-$0.17 per sq ft. Though Chicago and it’s surrounding suburbs like Downers Grove typically falls on the higher end of pricing. So one major factor pricing is heavily based on is the size of the area. You can guarentee this as the base or minmum of which certain tasks can be completed. Pricing can skew higher based on property value, foot traffic, and health specifications, commercial space type.