The World's Largest Access Door Store™
Williams Brothers’ Valve Boxes are designed to provide efficient and secure service access to critical areas in walls and ceilings for a wide range of commercial, industrial, institutional and residential applications. Ideal for both new and retrofit building projects, our valve boxes are suitable for use in drywall, plaster or tile enabling easy access to mechanical, electrical, plumbing and other building systems.
Williams Brothers’ valve boxes are available in a wide range of sizes designed to fit common framing dimensions with special sizes and modifications available upon request. Popular sizes include 8×8×4, 8x8x6, 8x8x8, 12x12x4, 12x12x6 and more. We also offer many additional features such as locks, view windows, louvers, custom holes, engraved plates and choice of finishes.
Williams Brothers prides itself on the differences we bring to our valve boxes. Our dedication to manufacturing quality makes us the choice for construction companies, architects, and engineers that demand the best access doors and panels in the world. Once you see what separates Williams Brothers from other manufacturers, you too will appreciate and demand the Williams Brothers difference.
Recessed: Our RVB Series Recessed Valve Box is a durable, fully recessed box designed to provide both vital protection and easy access to all types of valves and controls in the finished wall. Featuring an industry best heavy-duty, 14 gauge steel door and 18 gauge box, the enclosure is designed to meet a range of HVAC, electrical, plumbing, gas and other valve and control requirements
Surface Mounted: Our SMVB Series Surface Mounted Valve Box is a durable, fully enclosed box designed to provide both vital protection and easy access to all types of valves and controls that extend outside of the finished wall. Featuring an industry best heavy-duty, 14 gauge steel door and 18 gauge box, the enclosure is designed to meet a range of HVAC, electrical, plumbing, gas and other valve and control requirements
