Castle-BV Home Centre: Your trusted building supply partner. Proudly serving Houston, Telkwa, Smithers, and area.. With lumberyard locations in Telkwa and Houston, we are the largest suppliers of building materials in the Bulkley Valley. We serve the towns of Smithers, Hazelton, Moricetown, Telkwa, Houston, Topley and Granisle. We also provide building supplies to mineral exploration and mine sites between Stewart and Dease Lake along Hwy 37. Both stores also carry a wide selection of agricultural products including fence wire and posts, culverts, barn poles, panels and gates and animal feeds.