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R03 Window Restrictor

From £5.35
From £5.35
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  • Window restrictor. 

  • Fits uPVC and some timber windows.
  • Available in a 6 inch (150mm) or 10 inch (250mm) length.
  • Just fit inline with the hinges on either top hung or side hung windows. 
  • Non-handed single unit and a kit of parts for frame adjustment.
  • Supplied with instructions and fixing screws for uPVC.
  • Key-release window restrictor available.
  • How to improve window safety guide.


Window Restrictor (R03) - General Details



A fixed position window restrictor that allows a ventilation gap of approximately 100mm (6inch restrictor) and 150mm (10inch restrictor). The restrictor can only be released by removing the fixing screws. With the restrictor concealed between the frames there are no unsightly attachments to be seen on the main window surfaces. Can be used on aluminium, PVC or timber windows with a gap greater than 13mm between the frames. Do not use this restrictor if the window can be used as a fire-escape route. The gap of 13mm is the same size as a normal window stay found on a typical double glazed window.


Window Restrictor Technical Information


  • Arm length between pivot points is 100mm and 175mm for the 6 inch and 10 inch window restrictors respectively.
  • The R03 window restrictor can be positioned to various opening gap sizes dependent on the positioning within the window rebate.
  • The R03 can be adjusted to provide a rigid window stay position to an open window when the small screw is tightened.
  • Stainless steel and Zinc Alloy construction.
  • Where windows are present with the handle at the bottom then it is recommended to use two restrictors to ensure a strong enough brace of the window at the corners where safety is important.
  • Restrictors are universal to open both left and right handing.

For more details regarding Royal Mail strike action please visit the Royal Mail Help Page.

Please note last dispatch for the day (Mon-Fri) is 2pm during the normal working week, so your order forwards on to the next day for dispatch if your order is placed after this time. Orders placed after 2pm on Friday are dispatched on the Monday.

Channel Islands: VAT is removed on the final steps through the basket and is not charged to CI postcodes.

European Deliveries are currently suspended.

The following special offer is available to you when you buy the R03 Window Restrictors. The discount for the special offer will show in the cart if both the R03 Window Restrictors and the special offer product are added.

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