If Kent's Stone Products & Design, LLC. Stone Products are defective when applied according to manufacture's instruction, KSPD LLC. will give new product only at no cost for those found to be defective. This warranty is for a period of 52 years. KSPD LLC. warranty will NOT cover defects caused by acts of God, improper installations, or use as a structural member. Also not included are damages caused by outside sources. OUR 52 YEAR LIMITED WARRANTY IS THE LONGEST IN THE INDUSTRY. WE AT KENT’S STONE PRODUCTS AND DESIGNS LLC. WANT THE CUSTOMER TO KNOW THAT OUR LOYALTY IS IN MAKING OUR HAND CRAFTED STONE TO BE OF THE HIGHEST QUALITY AND BEST ON THE MARKET TODAY.