Depending on which version was applied to the exterior it could be a lifetime sealant. They use a chemical bond in which the negative charge of the car and the positive charge of the chemical bond and create a smooth surface. No wax is needed. You also can call them after 7 years and the will keep renewing the warranty in increments of 3 years. The only downfall is you paid a little too much. Average price around the country is $899. However, with that interior, kids, and dogs, you will make the money up on the inside alone!