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Flipper Gaskets

Flipper gaskets are an integral part of most uPVC window and door glazing systems. These sections are manufactured with a base that securely slots into the frame and a flexible flipper that compresses when the window or door is closed to create a reliable seal. This compression allows for a degree of tolerance for any misalignment between the window sash and frame, ensuring a constant seal even with minor imperfections from the initial installation.

Replacing these sections when they begin to perish is essential for reducing drafts and maintaining a good standard of thermal efficiency in your home. To identify the best replacement product, you will need to carefully measure the shape of your existing section. This will allow you to identify and purchase a new seal that you know will fit in the frame and adequately compress when the window or door is closed.

Installing a flipper gasket is a relatively simple process that does not require technical knowledge or support. The base, usually an arrow foot or inverted T, can be pushed into the groove in the frame. 

All Glazing, Door & Window Seals

WS5358

Glazing Bubble / Flipper Gasket Seal With 7.6mm Bulb - To Fit 5mm Wide Slot

To Fit 5mm Slot
Bulb: 7.6mm
Anti-Stretch Cord
Coil Length: 200m
£ 3.60 £ 3.60 3.6 GBP
Per Metre
DETAILS WS5358

WS5356

Glazing Bubble / Flipper Gasket Seal With 5.6mm Bulb - To Fit 3.5mm Slot (Sekura)

To Fit 3.5mm Slot
Bulb: 7.6mm x 5.6mm
Anti-Stretch Cord
Coil Length: 150m
£ 3.60 £ 3.60 3.6 GBP
Per Metre
DETAILS WS5356

WS5357

Glazing Flipper Gasket Seal - To Fit 3mm Wide Slot

To Fit 3mm Slot
Anti-Stretch Cord
Coil Length: 300m
£ 3.60 £ 3.60 3.6 GBP
Per Metre
DETAILS WS5357

WS2271

Glazing Flipper Gasket Seal - To Fit 4mm Wide Slot

To Fit 4mm Slot
Coil Length: 200m
£ 3.60 £ 3.60 3.6 GBP
Per Metre
DETAILS WS2271

WS3680

Glazing Flipper Gasket Seal - To Fit 5mm Wide Slot

To Fit 5mm Slot
Anti-Stretch Cord
Coil Length: 250m
£ 3.60 £ 3.60 3.6 GBP
Per Metre
DETAILS WS3680

Frequently Asked Questions

The cost to replace the flipper gasket around your window or door will vary depending on the size of the frame where it will be fitted. However, you will need approximately three metres of a replacement flipper gasket to seal a standard sized opening uPVC window. At an average price of £3.60 per metre, replacing this gasket will cost around £10.80 (excluding VAT) per window.

Our volume discount allows for significant cost savings of up to 40% when replacing multiple windows in your property.

Deciding on the best replacement flipper gasket for your window or door may seem like a complicated task. Although this glazing gasket may not seem like the most important part of your window, it is essential for reducing draughts, water ingress and keeping your home warm and comfortable.

Our extensive range of flipper gaskets allows you to choose a replacement section that is a replica of your existing seal. All of our products are manufactured from high-quality rubber compounds that have been specifically designed for residential and commercial windows and doors.

For further information or technical support with choosing the best replacement section for your window, you can get in touch with our knowledgeable team. If you would prefer, you are welcome to send us a sample of your existing section for identification. We can use this to help you identify a suitable replacement.