Manufacturer warrants that for 25 years this product is free from defects in material and workmanship. The factory applied top coat (paint) is warranted for 10 years. Assuming proper installation, manufacturer will repair or replace any product which has failed as a result of defective materials or workmanship. (Does not apply to Rails with installed span lengths between support over 8'.) In the event of a claim against this warranty, proof of purchase, with date will be required to affect such a claim. Installation cost not included. Manufacturer gives no other warranty, expressed or implied.