12-10-2013, 03:24 PM
i'd charge $ 0.18 per foot plus some for the steps and landing. This includes a prevac. It should take you 3-4 hours. If it is a must have go $0.15 per foot. Pitch a quarterly or semi annual cleaning of the halls while you are at it. Offices can probably go for a year between cleanings. Sell the "protect your investment" and "first impressions" if the company has customers in those areas. Good luck.