Lifetime Warranty

Any facet of the provided product or labor required to correct any item is covered under warranty and will be provided at no extra cost by Best Window Co. for as long as the purchaser resides in or owns the home in which the windows, sliding patio doors, entry doors, siding replacement, or roof replacement were installed. This warranty also comes with a free transfer to a second property owner on the 3000 (if the home is sold within one year of installation – 3000 only), 6000 and 9000 series windows, as well as on all Provia doors, GAF roof replacements, and siding replacements. Accidental glass breakage protection is included on the 6000 and 9000 series windows. GAF roofing systems are installed by Master-Elite Certified installers. Roofing systems installed with Royal Sovereign shingles are warranted for 25 years. Timberline HD architectural shingles are warranted for 50 years.