Aztec Washer Company, Inc. has been a trusted partner to the building and construction industries for over 50 years. Established in 1968, Aztec is renowned for its competitive, dependable, high-quality products and customer care. The company leads the industry with its flagship products: Master Seal® bonded sealing washers and Master Flash® pipe flashings.

Master Seal® bonded sealing washers are engineered through a unique vulcanization process that bonds metal and rubber to ensure optimal resistance to weathering, ozone, UV light, and environmental agents. These washers provide sealing, cushioning, and vibration resistance for applications involving expansion and contraction, such as metal roofing, siding, electrical installations, automotive, aerospace, and marine uses. With an extensive range of diameters and materials, Aztec also offers custom washers tailored to specific requirements, designed in-house with customer collaboration via phone, email, or fax.

The Master Flash® pipe flashing line includes over 25 styles, offering versatile solutions for double-wall heated pipes (type-B vents), electrical conduits, solar applications, and more. These ICC, IAPMO, and UPC-listed products are backed by an industry-leading 20-year warranty and are crafted from top-rated compounds developed through Aztec’s in-house lab and extensive resource network. The durability and performance of Master Flash® products make them a global standard in reliability.

A core philosophy of “imitated but never duplicated” sets Aztec apart from competitors. This is bolstered by a close relationship with a worldwide distributor network, ensuring the right parts are delivered accurately and promptly. Aztec’s commitment to quality is underscored by its ISO 9001:2015 certification and a proven track record of customer satisfaction.

Headquartered in Poway, California, Aztec operates independently in Mexico, the United Kingdom, Poland, and Australia, ensuring efficient distribution to customers worldwide. In response to modern shipping and supply chain challenges, Aztec has doubled inventory levels and extended shipping hours to meet just-in-time delivery needs.

Continuous improvement is at the heart of Aztec’s mission. By enhancing inventory capabilities, optimizing shipping logistics, and fostering innovative product developments, Aztec Washer Company is positioned for sustained leadership and success. Whether through its industry-defining products or unmatched customer service, Aztec remains committed to excellence, helping customers find solutions they can rely on today and in the future.