Keystone Property & Mortgage Centre is a family-run Estate Agent based in Connah's Quay, Deeside - offering houses for sale, Mortgage Advice, HIPS and Lettings. We offer free property valuations in the target region of Flintshire, mainly covering the towns of Connah's Quay, Shotton, Queensferry, Flint, Hawarden, Ewloe, Buckley and any surroundings areas