Penkid Safety and Window Restrictors: Complete Guide to the Penkid Security Range

Improving window safety is an important consideration for homeowners, landlords, schools and commercial property managers. Whether you're looking to prevent falls, restrict window openings or enhance home security, the Penkid range offers a variety of practical solutions designed to protect both people and property.

Suitable for uPVC, aluminium, timber and metal-framed windows and doors, Penkid products are widely used throughout the UK to provide controlled ventilation, child safety and additional security. From traditional cable restrictors to specialised tilt and turn window solutions, the range offers options for almost every application.

Why Install Window Restrictors?

Window restrictors are designed to limit how far a window can open, helping to reduce the risk of accidents while still allowing airflow and ventilation. They are particularly valuable in homes with young children, upper-floor properties, schools, hotels and care facilities.

In addition to improving safety, many restrictors provide an extra layer of security by preventing unauthorised access through partially opened windows.

The Penkid Product Range

Penkid Cable Window Restrictor

The Penkid Cable Window Restrictor is the most versatile product in the range. Designed for use on uPVC, aluminium, timber and metal-framed windows and doors, it restricts opening to approximately 10–15cm while allowing the window to be fully opened when unlocked using the supplied key.

Key Features

• Key-locking cable restrictor
• Suitable for windows and doors
• Restricts opening to approximately 10–15cm
• Supplied with key, cover plates and fixing screws
• Self-drilling screws included for straightforward installation
• Tested to withstand forces up to 550kg
• Available in multiple colour options including White, Brown, Grey and Black

This option is ideal for homeowners seeking a balance between child safety, ventilation and the ability to fully open windows when required.

Penkid Push Release Cable Window Restrictor

The Push Release version provides the same safety benefits as the standard Penkid restrictor but eliminates the need for a key. A secure push-release mechanism allows authorised users to release the restrictor when full window access is required.

Key Features

• No key required
• Restricts opening to approximately 10–15cm
• Suitable for windows and doors
• Tested to withstand forces up to 550kg
• UV-protected and anti-bacterial cable cover
• Available in White and Dark Brown finishes

This solution is particularly popular in environments where key management may be inconvenient, such as schools, rental properties and commercial buildings.

Penkid Fixed Cable Restrictor

For applications requiring a permanent restricted opening, the Penkid Fixed Cable Restrictor provides a simple and effective solution. Unlike the lockable models, this restrictor cannot be released and is designed to remain in place at all times.

Key Features

• Permanent fixed restrictor
• No locking or unlocking mechanism
• Restricts opening to approximately 10–15cm
• 200mm cable length
• Tested to a 450kg breaking strain
• Supplied with fixing screws

This product is ideal where a consistent restricted opening is required for safety compliance or building management purposes.

Penkid Sash Jammer

While cable restrictors focus on limiting window openings, the Penkid Sash Jammer is designed to improve security. Fitted to doors or windows, it provides an additional locking point that helps resist forced entry attempts. It is commonly used as an upgrade for uPVC doors and windows to provide added peace of mind.

Key Benefits

• Additional security for doors and windows
• Simple operation
• Quick installation
• Suitable for residential and commercial properties

The sash jammer is an excellent choice for homeowners looking to enhance security alongside existing locking systems.

Pentilt Tilt & Turn Window Restrictor

Tilt and turn windows require a different type of restrictor due to their unique opening mechanism. The Pentilt Restrictor has been specifically designed for inward-opening tilt and turn windows. When installed, it prevents the window from being fully opened without a key while still allowing the tilt ventilation function to operate normally.

Key Features

• Designed specifically for tilt and turn windows
• Allows normal tilt ventilation
• Restricts full opening unless unlocked
• Key-operated security mechanism
• Suitable for inward-opening uPVC tilt and turn windows

This makes the Pentilt an ideal solution for apartments, offices and upper-floor properties where safe ventilation is required.

Choosing the Right Penkid Product

The best option depends on how the window or door is used:

Installation and Compatibility

Penkid products are designed to be easy to install and are compatible with most common window and door materials, including uPVC, aluminium, timber and metal profiles. Most products are supplied with fixing screws and fitting instructions, helping installers achieve a secure and professional installation.

Conclusion

The Penkid range offers a comprehensive selection of window safety and security products designed to meet a variety of requirements. Whether you need a key-locking cable restrictor, a convenient push-release solution, a permanent safety device, additional security from a sash jammer or protection for tilt and turn windows, Penkid provides a reliable and practical option.

By selecting the correct restrictor or security device for your application, you can improve safety, enhance security and maintain effective ventilation throughout your property.