Window restrictors limit window openings to improve safety, ventilation, and controlled access. They are commonly used in homes, offices, schools, healthcare settings, hotels, commercial buildings, and refurbishment projects. Browse our range of window restrictors, available in a range of lengths, materials, finishes, fixing methods, and opening limits. Suitable for different window styles, frame materials, ventilation requirements, and safety considerations, they meet the needs of window installers, builders, joiners, maintenance teams, property developers, facilities managers, and trade professionals. Our window restrictors feature controlled opening, robust construction, and compatibility with uPVC, timber, and aluminium windows, meeting standards such as BS EN 13126-5. Buy window restrictors today to benefit from an extensive stock range and fast next-day delivery.