On todays visit, I inspected and treated kitchen, bathrooms and exterior. I noticed that there was vegetation touching the house. Please trim this back at least 12 inches to reduce conducive conditions for insects. Also, I do recommend power washing the back deck and bilco doors to reduce conducive conditions for the ants. I began by applying ant gel bait to kitchen counters, baseboards, window trim and door trim. After this, I applied ant gel bait to bathrooms; walls, windows and bathtub. I then applied a liquid application as a spot treatment under radiator in kitchen: also doing so in the little closet upstairs. I went outside and treated the exterior foundation with a liquid application; also treating underneath deck to systemically attack ant populations that may be present thereunder. We will be back in 30 days for your follow up. If you have any issues between visits, please let us know. Thank you for choosing Green Pest Solutions!