Cable Window Restrictors
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Cable window restrictors provide a simple and effective way to limit how far a window can open, helping reduce the risk of falls while still allowing controlled ventilation.
Window Doctor supplies, installs, repairs and replaces cable window restrictors through our nationwide network of local branches, covering residential and commercial properties.
Window restrictors are particularly useful where children or vulnerable people may have access to opening windows, as well as in settings such as hotels, care homes, healthcare facilities, offices and other multi-storey buildings.
Depending on the application, we can install permanently fixed, push-and-twist or key-release cable restrictors across suitable uPVC, aluminium and timber windows and doors. Call us today on 0800 043 0095 for a free quote and have your cable window restrictors installed by the best!

From £35
Common Reasons To Install Cable Window Restrictors:
Window restrictors can be installed for a variety of safety, security and practical reasons.
Common reasons include:
- Child safety – limiting how far a window opens can help reduce the risk of children falling from open windows.
- Protecting vulnerable people – restrictors can provide additional protection where vulnerable occupants have access to opening windows.
- Upper-floor windows – restricting the opening can be particularly valuable where windows are positioned significantly above ground level.
- Care homes – suitable restrictors can form part of measures used to manage risks associated with opening windows.
- Healthcare settings – hospitals, clinics and other healthcare environments may require controlled window openings in particular locations.
- Hotels and accommodation – restrictors can help control window openings in guest rooms and communal areas.
- Schools and nurseries – limiting accessible window openings can help manage fall risks where children are present.
- Offices and workplaces – restrictors can provide controlled ventilation while limiting how far suitable windows can open.
- Rental and managed properties – landlords and property managers may choose restrictors where an assessment identifies a risk associated with unrestricted windows.
- Additional security – restricting the opening can make it more difficult to gain access through certain partially open windows.
- Controlled ventilation – suitable windows can remain partially open without being capable of opening to their full extent.
A window restrictor should be selected according to the window, its location and how the building is used. There isn’t necessarily one type of restrictor that’s appropriate for every situation.
Our Cable Window Restrictor Services:
Window Doctor installs cable window restrictors across residential and commercial windows.
Our services include:
Cable window restrictor installation
Permanently fixed cable restrictors
Push-and-twist window restrictors
Key-release window restrictors
Replacement cable window restrictors
Repairs to existing window restrictors
Child safety window restrictors
Installation across multiple windows and properties
If you’re considering cable window restrictors for your home, care facility, hotel, office or other property, contact Window Doctor. Through our nationwide network of local branches, an experienced engineer can assess your windows, discuss suitable restrictor options and provide a free, no-obligation quote for installation, repair or replacement.
Frequently Asked Questions - FAQs
How far do cable window restrictors allow a window to open?
Many cable restrictor installations are designed to limit the opening to around 100mm, although the appropriate restriction depends on the particular product, window and application. Where a specific opening limit is required, this should be established before installation.
Are window restrictors suitable for homes with children?
Yes. Window restrictors are commonly installed where young children have access to opening windows, particularly on upper floors. They can help limit the opening and reduce the risk of falls, although they shouldn't be treated as a substitute for appropriate supervision.
What's the difference between fixed and releasable window restrictors?
Permanently fixed restrictors maintain the restricted opening during normal use. Releasable versions, such as key-release or push-and-twist restrictors, allow the restriction to be disengaged when appropriate. The best option depends on how the window needs to be used and who should be able to open it fully.
Can you install window restrictors on uPVC, aluminium and wooden windows?
Yes. Window Doctor can install suitable cable restrictors on many uPVC, aluminium and timber windows. The window construction, opening style and available fixing points should be assessed before installation.
Do you install window restrictors in care homes, hotels and commercial properties?
Yes. Window Doctor installs cable window restrictors across suitable residential and commercial properties, including care homes, healthcare environments, hotels and offices. Where a property has specific safety, risk-assessment or technical requirements, these should be considered when selecting the appropriate restrictor.
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