Kertz Fabrication is a Sonoma County welding and custom metal fabrication shop with over 20 years of experience in race car builds, Mustang and hot rod fabrication, dragster and NHRA projects, and precision metalwork. We specialize in TIG/MIG welding, chassis fabrication, prototyping, and production of high-quality metal parts for automotive and custom fabrication industries. Trusted by racers, builders, and local clients for craftsmanship, reliability, and professional fabrication services.