Does using GroutOnce! void my grout warranty? Absolutely not! Your warranty will simply transfer to VanHearron, Inc. Did this answer your question?Yes NoAdditional Comments:Send Feedback Post navigationNext post: Can GroutOnce! be used with all grouts? Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.