Wind-lock Builder & Contractor Supplies, Construction Tools, Access Panels, Hot Knife Kits, Trowels & More We're an industry partner who is committed to helping your business thrive by providing the highest level of service and support. Additionally, our broad inventory includes everything from essential, Wind-lock® is a single-source supplier of quality, top-name construction and building tools for professional contractors working in EIFS, drywall, stucco projects and more. Our reputation for providing contractors and builders with superior customer service is unmatched, and backed by guaranteed same-day shipping on all orders placed by 4pm local time.