How do i contact old mills maddlery customer service? Email: [email protected] Customer Service Representatives are available Monday to Friday 8.30am - 5.30pm.Where is old mill country store located? We offer two locations, in Ellensburg and Yakima, Washington. Our goal at Old Mill Country Store is to provide you with a unique shopping experience and complete customer satisfaction. We provide quality merchandise at a competitive price.What products does the old mill offer? Whether you’re a home handyman, craftsman or a full construction company, the Old Mill has a comprehensive range of products to satisfy your needs. Our product range includes: flooring, decking, structural timbers, furniture grade timbers, decorative and cladding.What happened to the old mill? Originally a saw mill where logs were processed for the new homes of the neighborhood, the Old Mill and its whirling saw sang a song of progress and industry through five generations of ownership in the same family (the Foster Family), before its wheels were stilled and it fell into disrepair.