Collection: Vertical Side Shower Door Seals
Choosing the right vertical shower door seal depends on three key measurements: 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, a precise fit helps reduce side leaks, door wobble and poor closure.
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.
2. Matching the Profile to Your Enclosure
The correct vertical seal profile depends on how your shower door closes:
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Pivot or hinged shower doors: For frameless doors that swing open, an H-shape vertical seal or a bulb seal with a flexible fin can help close the side gap between the glass and wall, frame or fixed panel.
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180-Degree Glass-to-Glass Joins: To bridge the gap between two inline panels, an H-shape seal or a Magnetic Strip set creates a secure, watertight closure.
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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. Professional Advice for Replacement
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.
WHY CHOOSE SIMBA?
UK stock, durable co-extruded PVC vertical seal profiles, fit support, and fast free UK delivery on all orders.
8mm Self-Adhesive Double-Finned 6mm + 8mm T-Shaped Seal VG002
High-Temperature TPE Sauna Door Adhesive Seal S312S1235
135° Vertical Shower Door Seal P045DJ
135° Shower Door Side Seal for Angled Glass Panels P045SJ
Built for Everyday Bathroom Use
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.
How to Install
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.
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’s usually a mismatch of hardware and glass alignment. 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 premium sliding door, the right vertical shower door seal must provide a seamless barrier without obstructing the door’s motion. At SIMBA, we understand that "universal" fixes rarely work for UK bathrooms, where hard water and constant steam challenge the integrity of your seals every day.
As a specialist manufacturer-direct supplier, we hold a database of over 9,000 seal profiles, ensuring we can replace almost any legacy strip from leading UK brands. Unlike cheap imports, our seals are crafted from high-clarity, REACH-certified PVC—free from harmful chemicals and engineered to resist the "pink mould" and yellowing common in high-humidity environments. By buying directly from the source, you gain professional-grade durability that has been tested for over 30,000 opening cycles.
Identify Your Profile:
- For doors that aren't staying shut or have a large "clashing" gap, explore our precision-aligned Side Magnetic Shower Door Seals.
- If your leak is occurring where two glass panels overlap or at the hinge side, browse our specialized F & H Shape Vertical Seals for a slimline, watertight fit.
Confused about measurements? Read our expert Masterclass: How to Identify & Fit Vertical Shower Seals