Frequently Asked Questions

West-O-Matic shutters are made of 100% aluminum, making them strong yet lightweight with a long-lasting rust-free finish. This all-aluminum construction delivers years of exceptional service without the corrosion issues associated with other materials.

West-O-Matic products are guaranteed to be free from defects in materials and workmanship for one year from the date of shipment. Any defective parts will be repaired or replaced at the option of L.R. West Manufacturing Co., Inc., F.O.B. our plant. Installation, removal, and freight costs are not included.

Yes! In addition to our complete inventory of standard West-O-Matic shutters, we offer custom "Specials" designed to meet your unique requirements. Our engineering team can work with you to develop solutions that perfectly match your specifications.

Genuine West-O-Matic shutters feature our trademark-stamped rivets embedded on every moving linkage. This stamp serves as your assurance of authenticity and quality. Only genuine West-O-Matic shutters carry our full product guarantee.

West-O-Matic shutters are designed for vertical installation on the discharge side of fans. They're ideal for wall-mounted exhaust fans and penthouse fans, commonly used in commercial buildings, warehouses, residential homes, and greenhouses.

LR West Manufacturing has over 50 years of experience in designing, engineering, and manufacturing fan shutters. Our decades of expertise ensure every West-O-Matic unit reflects our commitment to superior quality and dependable performance.

For best results: (1) Ensure wall opening is plumb and flat to prevent frame distortion, (2) Confirm shutter blades open and close freely after installation, (3) Caulk as needed to prevent air leaks and maintain efficiency, and (4) Clean and lubricate shutters during regular fan maintenance.

We maintain a complete inventory of West-O-Matic shutters in standard sizes for quick availability. Fast delivery is one of the key reasons customers choose LR West Manufacturing. Custom orders may require additional lead time based on specifications.