Vertical Side Shower Door Seals

How to Choose a Vertical Shower Door Seal

Shop replacement vertical shower door seals for leaking side gaps, glass-to-glass joints, and framed or frameless shower doors.

Choosing the right vertical shower door seal depends on three key checks: your glass thickness, the side clearance gap, and the opening angle of your enclosure. Because vertical shower seal strips sit on moving door edges or glass-to-glass joints, the right fit can help reduce side leaks, door movement, and poor closure.

Not sure which vertical seal you need? Send us a photo of your old seal profile on WhatsApp — we’ll help you find the closest suitable replacement before you order.

1. The Measurement Essentials

Before choosing a replacement vertical shower door seal strip, confirm your glass thickness — usually 4mm, 5mm, 6mm, 8mm, 10mm, or 12mm. Then measure the gap between the glass edge and the wall, frame, or adjacent glass panel in millimetres.

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2. Matching the Profile to Your Enclosure

The correct vertical seal profile depends on how your shower door closes:

Pivot or hinged shower doors: For frameless doors that swing open, an H-shape vertical seal or bulb seal with a flexible fin can help close the side gap between the glass and wall, frame, or fixed panel.

180-degree glass-to-glass joins: To bridge the gap between two inline panels, an H-shape seal or magnetic strip set can help create a secure closure.

135-degree angled enclosures: Angled corner showers need a dedicated 135-degree seal profile so the strip follows the angle of the glass correctly.

90-degree corner shower enclosures: A 90-degree magnetic shower door seal is usually needed where two glass doors or panels meet at a right angle.

3. Check Before You Order

If you are replacing a worn vertical shower door seal strip, remove a small section of the old seal and compare its cross-section with the product images. Matching the profile shape is often the easiest way to choose the correct replacement, especially for framed doors, hinged doors, and older shower enclosures.

Need help? Send us a photo of your old seal profile, glass thickness, and gap size before ordering.

WHY CHOOSE SIMBA?

UK stock, 100% quality checked vertical shower door seals, manufacturer experience since 1998, fit support, and fast free UK delivery on all orders.

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100 products
F Shape Vertical Shower Door Seal for 8-10mm Glass 35mm Fin F810S2535F Shape Vertical Shower Door Seal for 8-10mm Glass 35mm Fin F810S2535

F Shape Vertical Shower Door Seal for 8-10mm Glass 35mm Fin F810S2535

£32.70
£35.99 £32.70
4–6mm Glass Sliding Door F-Shape Seal FD456S10154–6mm Glass Sliding Door F-Shape Seal FD456S1015

4–6mm Glass Sliding Door F-Shape Seal FD456S1015

£32.70
£35.99 £32.70
4–6mm Glass F-Type Sliding Screen Seal FD456S20254–6mm Glass F-Type Sliding Screen Seal FD456S2025

4–6mm Glass F-Type Sliding Screen Seal FD456S2025

£32.70
£35.99 £32.70
CO456 90 degree shower screen corner seal for two fixed 4-6mm glass panelsCO456 corner seal dimensions for 4-6mm fixed shower glass meeting at 90 degrees

4-6mm Glass 90° Shower Screen Corner Seal CO456

£29.99
£43.19 £29.99
CO810 90 degree shower screen corner seal for two fixed 8-10mm glass panelsCO810 corner seal dimensions for 8-10mm fixed shower glass meeting at 90 degrees

8-10mm Glass 90° Shower Screen Corner Seal CO810

£29.99
£43.19 £29.99
CO1456 corner seal for overlapping fixed 4-6mm shower glass panelsCO1456 corner seal dimensions for overlapping 4-6mm fixed shower glass

4–6mm Glass Overlapping Fixed Shower Screen Corner Seal CO1456

£29.99
£43.19 £29.99
C01810 corner seal for overlapping fixed 8-10mm shower glass panelsC01810 corner seal dimensions for overlapping 8-10mm fixed shower glass

8-10mm Glass 90° Shower Screen Corner Seal CO1810

£29.99
£43.19 £29.99
M45A2M 90 degree magnetic shower door seal pair for 4-5mm glass with 9mm closing gapM45A2M magnetic shower seal diagram showing how two 4-5mm glass panels meet at 90 degrees

4-5mm Glass 90° Degree Magnetic Shower Door Seal M45A2M

£29.88
£32.70 £29.88
135° Shower Door Side Seal for Angled Glass Panels P045SJ

135° Shower Door Side Seal for Angled Glass Panels P045SJ

£29.99
£43.19 £29.99
135° Vertical Shower Door Seal P045DJ

135° Vertical Shower Door Seal P045DJ

£29.99
£43.19 £29.99
M68A2M 90 degree magnetic shower door seal pair for 6-8mm glass with 8mm closing gapM68A2M magnetic shower seal diagram showing how two 6-8mm glass panels meet at 90 degrees

6-8mm Glass 90° Degree Magnetic Shower Door Seal M68A2M

From £3.48
£4.20 From £3.48
M10A2M 90 degree magnetic shower door seal for 10mm glass with 6mm closing gapM10A2M magnetic shower seal diagram showing how two 10mm glass panels meet at 90 degrees

10mm Glass 90° Degree Magnetic Shower Door Seal M10A2M

From £3.48
£4.20 From £3.48
90° Magnetic Shower Door Seal Pair for 8-10mm Glass MD81090MD81090 90 degree magnetic shower door seal dimensions for 8-10mm glass and 11mm gap

90° Magnetic Shower Door Seal Pair for 8-10mm Glass MD81090

£29.88
£32.70 £29.88
M456D0 dual-polarity magnetic shower door seal dimensions for 4-6mm glass

4–6mm Glass Magnetic Shower Door Seal for Hinged & Pivot Doors M456D0

£29.99
£29.99
ME81090 90 degree magnetic shower door seal for 8mm 9mm 10mm glassME81090 magnetic shower door seal profile dimensions for 8mm 9mm 10mm glass

90° Magnetic Shower Door Seal Pair for 8-10mm Glass ME81090

£29.88
£32.70 £29.88
MI810 90 degree magnetic shower door seal pair for 8-10mm glass showing right-angle glass meeting positionMI810 magnetic shower seal profile dimensions for 8-10mm glass

8–10mm Glass 90° Shower Door Magnetic Seal MI810

£29.88
£32.70 £29.88
M45C2M magnetic shower door seal fitted on 135 degree glass doorM45C2M white PVC magnetic shower seal pair with black magnetic strip

135° Magnetic Shower Door Seal Pair for 4–5mm Glass 21mm Gap M45C2M

£29.88
£32.70 £29.88
M68C2M 135 degree magnetic shower door seal fitted on glassM68C2M white PVC magnetic shower seal pair for curved doors

135° Magnetic Shower Door Seal Pair for 6–8mm Glass 19mm Gap M68C2M

£29.88
£32.70 £29.88
M10C2M magnetic shower door seal fitted on a 135 degree glass edgeWhite PVC magnetic shower seal pair for 10mm shower glass

135° Magnetic Shower Door Seal Pair for 10mm Glass 19mm Gap M10C2M

From £3.48
£4.20 From £3.48
M410AC adaptive magnetic shower door seal for 4-10mm glass and 18-30mm uneven gapsM410AC magnetic shower seal dimensions for 4-6mm glass and 18-30mm uneven closing gaps

Magnetic Shower Door Seal for Uneven 18–30mm Gaps 4–6mm & 8–10mm Glass M410AC

£29.88
£29.88
MH410 framed magnetic shower door seal profile for replacement applicationsMH410 magnetic shower seal showing 4-6mm and 8-10mm glass fit options

Magnetic Shower Door Seal Set For 4–6mm & 8–10mm Glass MH410

£29.88
£32.70 £29.88
180° Magnetic Shower Door Seal for Pivot & Hinged Shower Doors, 4-5mm Glass, 22mm Gap, M45A2M180° Magnetic Shower Door Seal for Pivot & Hinged Shower Doors, 4-5mm Glass, 22mm Gap, M45A2M

180° Magnetic Shower Door Seal for Pivot & Hinged Shower Doors, 4-5mm Glass, 22mm Gap, M45A2M

£29.88
£32.70 £29.88
M45B2M 180-degree sliding magnetic shower door seal for 4–5mm glass and gaps up to 22mmM45B2M sliding magnetic shower door seal dimensions for 4–5mm glass with a maximum closing gap of approximately 22mm

4-5mm 180° Sliding Shower Door Magnetic Seal up to 22mm Gap M45B2M

£29.88
£32.70 £29.88
M45C2M sliding shower door magnetic seal pair for 4-5mm glass and 22mm gapM45C2M push-on magnetic shower seal fitted to sliding glass door

4-5mm 180° Sliding Shower Door Magnetic Seal 22mm Gap M45C2M

£29.88
£32.70 £29.88
M68B2M 180-degree sliding magnetic shower door seal for 6–8mm glass and gaps up to 19mmM68B2M sliding magnetic shower door seal dimensions for 6–8mm glass with an approximate 19mm maximum closing gap

6-8mm 180° Sliding Magnetic Shower Door Seal up to 19mm Gap M68B2M

From £3.48
£4.20 From £3.48
M68A2M 180 degree magnetic shower door seal for 6-8mm glass with 22mm gapM68A2M shower door magnetic seal size diagram for 6-8mm glass and 22mm gap

180° Magnetic Shower Door Seal for Pivot & Hinged Shower Doors, 6-8mm Glass, 22mm Gap, M68A2M

From £3.48
£4.20 From £3.48
M68C2M 180-degree sliding magnetic shower door seal for 6–8mm glass and gaps up to 22mmM68C2M sliding magnetic shower door seal dimensions for 6–8mm glass with a maximum closing gap of approximately 22mm

6-8mm 180° Sliding Magnetic Shower Door Seal Up to 22mm Gap M68C2M

£29.88
£32.70 £29.88
Technical cross-section of SIMBA RY3075 universal seal installed on a 180-degree inline sliding shower door overlap.SIMBA RY3075 multi-angle profile applied as a vertical seal on a 90-degree hinged shower enclosure door.

6-8mm Flexible Magnetic Shower Door Seal Up to 35mm Gap RY3075

£29.88
£32.70 £29.88
Help Choosing the Right Seal
Send us a photo before ordering.
100% Quality Checked
Checked before dispatch.
Manufacturer Since 1998
Experienced shower seal specialists.
Durable vertical side seals for frameless doors

Built for Vertical Shower Door Gaps

Vertical seals need to handle frequent movement while maintaining a clean and consistent seal.

✔ Flexible Yet Secure
Designed to combine a firm grip with a flexible sealing edge, helping maintain contact as the door moves.

✔ Maintains Appearance Over Time
The material is designed to stay clear and resist common signs of wear, helping your shower look well-maintained.

✔ Suitable for Regular Use
Tested for repeated opening and closing, helping ensure consistent performance in everyday use.

Not sure which vertical seal fits? Send us a photo of your old seal, glass thickness and gap size — we’ll help you check the closest suitable replacement.

Vertical Seal Choosing Guide

Not sure which vertical shower seal fits?

If your shower door is old, has no model number, or the original seal is no longer available, send us photos before ordering.

We’ll check the seal profile, glass thickness and fitting position to help you find the closest suitable replacement.

Find a Seal for an Old Shower Door

How to Fit a Vertical Shower Door Seal

Installing a vertical shower door seal is straightforward and requires no specialist tools.

First, remove the old seal by gently pulling it away from the glass edge.

Clean the glass surface with warm soapy water to remove any residue or limescale deposits.

Push the new seal onto the glass edge, starting from the top and working downward, ensuring the rigid U-channel grips the glass firmly.

If the seal is longer than required, mark the desired length and trim with sharp scissors or a craft knife for a precise cut to size.

For magnetic seals, align both strips on opposing glass panels to confirm correct polarity before final fitting.

Replace Vertical Shower Door Seal

Finding the Perfect Vertical Shower Door Seal for Your Enclosure

Water leaking through the vertical gaps of your shower is often caused by more than just a worn strip. It can also be affected by the door type, glass alignment, closing angle and the size of the gap. Whether you are dealing with a 90-degree corner joint on a quadrant enclosure or an 180-degree inline glass-to-glass overlap on a sliding door, the right vertical shower door seal should help close the gap without obstructing the door’s motion.

At SIMBA, we understand that “universal” fixes rarely suit every UK bathroom, where hard water, daily use and constant moisture can all affect shower seals over time.

As a manufacturer-direct supplier with experience since 1998, we can help match many older and current vertical shower door seal profiles, including options for framed, frameless and glass-to-glass enclosures. Our vertical shower door seals are made from clear PVC and are quality checked before dispatch for profile, finish and overall condition.

Identify Your Profile

Not sure which profile you need? Read our guide: How to Identify & Fit Vertical Shower Seals , or send us a photo of your old seal for help choosing.