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Timber Flexible Flipper Seals

Flexible flipper seals, also known as W series weatherseals, are designed to be used as replacement seals in timber frames on windows and doors. They are ideal for timber casement windows and narrow tall windows. Replacing your existing seal when they start to deteriorate is essential for preventing damage to your home, saving you money and keeping you warm and comfortable

These flexible flipper weatherseals are designed for easy insertion and fit directly into the timber frame. Compared to similar products, the flexible lip allows for lower closing forces and creates a reliable air and watertight seal when the window or door is closed.

Easy insertion flexible flipper seals are available in a range of colours and sizes, depending on the size of your frame and gap you need to seal.

All Glazing, Door & Window Seals

TFS3268

White Easy Insertion Flexible Flipper 12mm Seal (W Series)

Colour: White
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.00 £ 5.00 5.0 GBP
Per Metre
DETAILS TFS3268

TFS3269

White Easy Insertion Flexible Flipper 15mm Seal (W Series)

Colour: White
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.30 £ 5.30 5.3 GBP
Per Metre
DETAILS TFS3269

TFS3270

White Easy Insertion Flexible Flipper 18mm Seal (W Series)

Colour: White
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.90 £ 5.90 5.9 GBP
Per Metre
DETAILS TFS3270

TFS3271

Brown Easy Insertion Flexible Flipper 12mm Seal (W Series)

Colour: Brown
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.00 £ 5.00 5.0 GBP
Per Metre
DETAILS TFS3271

TFS3272

Brown Easy Insertion Flexible Flipper 15mm Seal (W Series)

Colour: Brown
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.30 £ 5.30 5.3 GBP
Per Metre
DETAILS TFS3272

TFS3273

Brown Easy Insertion Flexible Flipper 18mm Seal (W Series)

Colour: Brown
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.90 £ 5.90 5.9 GBP
Per Metre
DETAILS TFS3273

TFS3274

Black Easy Insertion Flexible Flipper 12mm Seal (W Series)

Colour: Black
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.00 £ 5.00 5.0 GBP
Per Metre
DETAILS TFS3274

TFS3275

Black Easy Insertion Flexible Flipper 15mm Seal (W Series)

Colour: Black
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.30 £ 5.30 5.3 GBP
Per Metre
DETAILS TFS3275

TFS3276

Black Easy Insertion Flexible Flipper 18mm Seal (W Series)

Colour: Black
Fits 5mm x 8mm Groove
Seals 4.5 to 7mm Gaps
Coil Length: 50m
£ 5.90 £ 5.90 5.9 GBP
Per Metre
DETAILS TFS3276

Frequently Asked Questions

Our easy insertion flexible flipper weatherseals are available in three different sizes, 12mm, 15mm and 18mm. This measurement refers to the height of the seal and allows you to purchase a section that will sit flush with the top edge of the frame. To identify the best replacement section, you will need to measure the height of the frame from the top of the groove.

These products are designed to be fitted into a groove in your window or door frame. This groove will need to be 5mm wide by 8mm deep. All of these sections seal a gap between 4.5mm and 7mm.

Timber flexible flipper seals are designed to be pushed into the groove around the frame on your window or door. You need to ensure that this groove is clean, dry and free from dirt or debris before inserting the seal. Cut the seal to the required length and gently push it into the groove all the way around the frame ensuring that the V of the flipper faces away from the external edge of the window or door.

It is important to make sure that the seal does not sit proud or too low within the groove as incorrectly positioned seals can create an area for water to sit. Once the seal is correctly positioned, use a staple gun to secure it through the back to the edge of the frame.

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

Our extensive range of flipper seals allows you to choose a replacement section that fits the gap you are looking to fill. All of these products are manufactured from a high-quality Polyurethane and Polyethylene and 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 home, 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.