Solid Advantage is a full-service kitchen remodeling and bathroom remodeling company based in Londonderry, New Hampshire. Our company specializes in a variety of different remodeling services for residential and commercial customers. We offer high-end custom countertops made from brand name suppliers. Contact us today for more information about your desired remodeling project, or visit our establishment located 1 and a quarter miles south of Exit 5 from Route 93.