All of our pre-approved installers are licensed and experienced contractors. The installer will match the manufacturer's warranty on the products installed. This means that if a door has a lifetime warranty, then the labor for installing the door will also have a lifetime warranty. That way if there is an issue with the door that was caused by the installer, it will be repaired by the installer. If there is an issue with the door caused by a defect in the door, then the manufacturer will repair or replace the door.
All Doors and Windows we sell come with their full-factory manufacturer warranty. Please read the manufacturer warranty thoroughly and follow all requirements. Failing to follow manufacturer's requirements and instruction will void your warranty.