North America Largest Roofing Manufacturer

    Automatic Lifetime Protection Roofing SystemGet automatic Lifetime Protection on your entire GAF roofing system

    When you install any GAF Lifetime Shingle and at least 3 qualifying GAF accessories, you’ll automatically get a Lifetime limited warranty on your shingles and all qualifying GAF accessories*.

    Grandmark Service Company is a Master Elite Contractor And Can Offer Extended Warranties.