All products manufactured by Santerra Stonecraft are subject to high standards of quality set forth in its program for quality assurance. Santerra Stonecraft provides a Lifetime Guarantee on any of its manufactured concrete products experiencing problems with structural integrity and strength when used in residential applications. Installation procedures must be according to the design and installation methodology prescribed by the ICPI for the guarantee to be in effect. Issues due to efflorescence and colours variance are not structural deficiencies and therefore will not warrant coverage by this guarantee. Transportation and additional labour costs that may be incurred will not be acknowledged.