W. Va. Code § 38-2-3: Lien of materialman furnishing supplies to owner.

Every person, firm or corporation which shall furnish to any owner, for use in the erection, construction, alteration, repair or removal of any building or other structure or improvement appurtenant thereto, any materials, machinery or other equipment or supplies necessary to the completion of such building or other structure or improvement, shall have such a lien for his compensation as is mentioned in section one of this article.