Custom Building Products – Performance-Driven Solutions for Tile & Stone Installation At Custom Building Products, we make tile, stone, and floor covering installations faster, easier, and more durable with performance-driven solutions and unmatched support. Our expert customer service and technical support help professionals and DIYers choose the right products for every job. From waterproofing and crack prevention to thin-set mortars, grouts, and tile sealers, our products are designed to adapt to job conditions and deliver lasting performance. With the industry’s best Lifetime Warranty and leading educational resources, we ensure successful installations every time. For reliability, innovation, and quality you can trust—Custom Building Products sets the standard.