Collapsible Window / Door Grille

The Collapsible Window / Door Grille—also known as a retractable security gate, concertina grille, or folding gate—is a practical and discreet solution to secure windows and doors against forced entry. Whether it's called a concertina gate or a collapsible barrier, the concept is the same: a steel lattice gate that expands and retracts as needed while offering solid protection.

Constructed from a strong solid steel lattice and mounted in a box section steel frame, this grille is typically installed on the inside of windows or doors, making it ideal for residential properties and vulnerable access points in commercial premises.

The design allows it to be neatly folded to the side when not in use, offering a low-profile appearance without sacrificing security. It’s an excellent choice for those who need reliable protection without permanently obstructing visibility or light.

Each grille is fitted with a high-quality radial push lock as standard, and additional locks can be added upon request for increased security. Every unit is made-to-measure to ensure a perfect fit.

To request a quote, simply click the "Enquire About This Product" button and include the following:

• Clear photographs of the window or door area
• Approximate width and height measurements

Our team will then review the details and respond with a tailored quotation.

• Construction: Solid steel lattice with internal folding mechanism
• Mounting: Internal installation (window or door recess)
• Locking: One radial push lock included (additional locks optional)
• Operation: Collapsible / retractable for ease of use and low visibility when retracted
• Finish: Powder-coated (white or black as standard; custom colours available)
• Service Area: Installed in Birmingham and surrounding areas