Windows in existing buildings are often identified as a risk. So our retrofit restrictors deliver appropriate safety levels without replacing the window itself, reducing costs and minimising service user disruption.

In this section, you'll find technical information on our window restrictors and related products.

Hold Open Magnet

Two-part product codes

Vent size Restrictor length (mm)
300mm-600mm 225
600mm-800mm 340
800mm-1100mm 450
1100mm-1400mm 650


This table is for guidance only and should be verified by your delivery partner.  For vents in excess of 1400mm, or for further information, please get in touch.