LOCALLY OWNED AND SAFELY SERVING DE, PA AND MD SINCE 1987 Same day service and fast free quotes! Proudly offering Senior and Veteran discounts. Call Now 1-800-827-0512 Tri-State Pest Management Delaware – (302) 239-0512 Pennsylvania – (610) 444-0520 Maryland – (410) 398-9334 Call today for a fast and hassle-free estimate! Notice: JavaScript is required for this content. Locally Owned & Operated. Serving DE, PA, and MD.