Ferndale Siding Company is a DBA of Sidijg Vault. Siding Vault is a large siding replacement contractor based out of Whatcom County. We install wood, composite, metal, and fiber cement siding. Siding Vault is a James Hardie Preferred Contractor. We are fully licensed and insured as a locally owned and trusted siding installation business. Our crew offers full exterior remodeling services, with the most common sub-service being window replacement and rot repair during siding replacement. Throughout the years we have accumulated a vast knowledge base on building envelope renovation. Ask us about financing! A building envelope company Siding - Windows - Roofing - Decking siding contractors