What is the best and most quick way to get cleaning contracts in your area for a business that is already doing residential cleaning, but wants to enter the market in the commercial arena?

Well I would create a flyer, showing the name of your biz, what you do (be specific). Then make lotsa copies and when your in an area that is close to other places you currently clean, drop them off. If you see a place that can use your service, give them a flyer. Stick on doors, in laundromats, anywhere a posting board is available.

Be sure to use Residential/Commercial facility cleaning available in your sales pitch.