Many professional stonemasons offer warranties or workmanship guarantees, providing assurance that the stonework will meet quality and durability standards. Guarantees may cover issues such as structural integrity, mortar failure, or installation defects for a specified period. While natural stone itself is highly durable, a warranty reflects the stonemason’s confidence in their craftsmanship. Always ask about warranty terms before starting a project, including coverage and duration. A clear guarantee adds peace of mind and demonstrates professionalism and accountability.