How can I get rid of ants in an unused kitchen?

depending on the color and type of surface you have the ants frequenting, my solution worked for a friends kitchen and he had mass ants. I purchased a big spray bottle from the dollar store and grabbed the bleach out of his laundry room. I filled this bottle a little over half with water and the rest with bleach. i sprayed them and the little trail back to the point of entry and they re-routed their little invasion real quick. Of coarse depending upon the size of the ants, you should strengthen the solution accordingly. Good luck. Hope this does it for you. Connie