Duffer's Pub Address: Baltimore Pike, Chester Heights, PA 19017 Phone: (610) 361-9336 Restaurants, Bars Other Businesses: Bryn Mawr Trust Co at 31 Baltimore Pike, Chester Heights, PA 19017 Kelly Counseling & Consulting at 305 Valleybrook Rd, Chester Heights, PA 19017 Mile High Executive at 105 Commons CT, Chester Heights, PA 19017