Shower Door Bottom Seals

Find the right shower door bottom seal to help reduce water leaking under your shower door.

Start with two quick checks: your glass thickness and the gap under the glass.

1. Shop by glass thickness
4–6mm glass 8–10mm glass
2. Shop by bottom gap
No gap Under 9mm 9–12mm 13–16mm 17–20mm 20mm+
Show more

Once you know your glass thickness and bottom gap, use the filters below to narrow products by door type and seal profile.

Common bottom seal profiles include fin seals, sweep seals, side-fin seals, brush-style seals, bulb seals and U-channel bottom seals for sliding doors, pivot and hinged doors, frameless doors and bath screens.

Shower door bottom seal with clear threshold seal preventing water leaks on a glass shower door

Caret Down

64 products

Profile view of the VC10 heavy-duty offset seal fitted on 10mm glass, displaying the asymmetric U-channel with a side guide rail and an off-centre single fin positioned to bridge wide floor gaps between 16mm and 18mm.Technical dimension diagram of the VC10 strip, specifying the robust 10mm inner channel, the 18mm fin length extending from the offset edge, and the effective sealing range for 16–18mm base separations.

10mm Glass Heavy-Duty Offset Edge Shower Bottom Seal VC10

£14.88
£20.88 £14.88
Close-up cross-section of the VD810 shower door bottom seal strip fitted on 8-10mm glass, showing the transparent U-channel, side guide rails, and unique 17mm single fin with a central bulb to effectively fill uneven gaps beneath thicker glass.Technical dimension diagram for a shower door bottom seal, detailing the inner channel width, 17mm central fin length (including bulb height), and overall profile height with lateral stabilising rails, engineered for precise replacement on 8-10mm thick glass.

8-10mm Glass Shower Door Bottom Gasket Replacement 17mm Fin VD810

£14.88
£20.88 £14.88
self adhesive shower door sweep for sliding glass doorTechnical dimension diagram of the S312DTL7 strip, specifying the adhesive contact width, material thickness, and fin length intended to provide coverage while accommodating various bottom hardware positions.

Self-Adhesive Sliding Shower Door Sweep & Bottom Seal – Side Fin Up to 25mm Gap | S312DTL7

£14.88
£20.88 £14.88
universal adhesive shower door sweep for large bottom gapUniversal Adhesive Shower Door Sweep & Bottom Seal – 12–35mm Gap | V312S1235H

Universal Adhesive Shower Door Sweep & Bottom Seal – 12–35mm Gap | V312S1235H

£14.88
£20.88 £14.88
D10S7 vertical shower door bubble seal for 10mm glass with 8mm soft bubbleClear PVC bubble shower door seal showing soft rounded edge for 10mm glass

Vertical Bubble Shower Door Seal for 10mm Glass – 7mm Gap D10S7

From £3.48
£35.99 From £3.48
UH456 U-shape shower screen edge protector fitted on 4-6mm glass showing a secure no-gap fit for safety and water containment in UK bathrooms.Technical dimensions diagram of UH456 U-channel glass guard, specifically designed to clamp tightly onto 4mm to 6mm thick shower screen panels without adhesive.

U-Shape Shower Screen Edge Protector 4-6mm Glass No-gap UH456

£14.88
£20.88 £14.88
UH810 U-shape shower screen edge protector securely fitted on 8-10mm thick glass, demonstrating a tight no-gap seal for enhanced safety in modern UK bathrooms.Detailed dimension diagram of the UH810 U-channel glass guard, engineered with a precise inner width to clamp firmly onto 8mm to 10mm shower screen panels without slipping.

Heavy-Duty U-Shape Shower Screen Edge Protector 8–10mm Glass – UH810

£14.88
£20.88 £14.88
Cross-section view of the S12 heavy-duty 12mm shower door brush seal installed on thick glass, demonstrating the secure grip of the clear U-channel and effective black bristle barrier.Detailed technical dimension diagram of the S12 12mm glass brush seal, specifying exact inner width, bristle height, and channel thickness to ensure a perfect fit for heavy frameless enclosures.

12mm Glass Shower Door Seal With Brush S12

£29.88
£38.70 £29.88
Cross-section view of the S10 luxury 10mm shower door brush seal installed on glass, showing the precise fit of the clear U-channel and soft black bristles for a seamless frameless look.Detailed dimension diagram of the S10 10mm glass brush seal, illustrating exact measurements for inner width, bristle length, and channel depth to ensure perfect compatibility with thick shower screens.

Luxury Frameless 10mm Shower Door Brush Seal S10

£29.88
£38.70 £29.88
S08 8mm sliding shower door brush seal featuring a transparent U-channel grip and dense black soft bristles for effective water and draft protection on UK glass screens.Technical cross-section diagram of the S08 brush seal showing precise 8mm inner width designed to clamp tightly onto sliding shower door panels without adhesive.

8mm Sliding Shower Door Brush Seal Replacement S08

£29.88
£38.70 £29.88
Cross-section close-up of the VE01 shower door sweep framed, showcasing the transparent soft PVC with a unique T-shaped leg paired with an extended side channel, creating a dual leak-prevention barrier, optimized to lock into standard framed door base tracks and direct splashed water towards the drain for more reliable waterproofing than traditional single-strip seals.Technical dimension diagram for a framed shower door drip rail, detailing the width of the T-leg, the length of the main sweeping fin, and the specific millimetre dimensions of the lateral extension channel, providing critical specification data for users needing an exact track match who seek enhanced bottom water containment via an additional channelling structure.

Framed Shower Door Drip Rail and Sweep VE01

£14.88
£43.19 £14.88
Cross-section close-up of the VH005 framed shower door drip rail replacement, showcasing the white soft PVC with a unique 4mm wide T-shaped top and a 16mm long sweeping fin, optimized to snap into wider base tracks of white framed doors for an aesthetically pleasing and efficient water channelling solution.Technical dimension diagram for a framed glass shower door bottom seal strip, detailing the 4mm white T-leg width, 16mm fin height, and overall profile, providing critical specification data for users needing an exact match for 4mm wide grooves in white door frames who require mid-length coverage.

4mm White Framed T-Bar Seal 16mm Fin VH005

£29.88
£43.19 £29.88
Shower Frame Gasket 25mm Gap VL001Shower Frame Gasket 25mm Gap VL001

Shower Frame Gasket 25mm Gap VL001

£29.99
£43.19 £29.99
Cross-section close-up of the VI001 drip rail framed shower door seal strip, showcasing the transparent soft PVC with a unique 5mm wide T-shaped top and a rare 28mm extra-long sweeping fin, optimized to snap into wider tracks and cover large floor gaps for robust water channelling and leak protection.Technical dimension diagram for a framed shower screen seal, detailing the 5mm T-leg width, 28mm total fin height, and overall profile, providing critical specification data for users needing an exact match for 5mm grooves who require extra-long coverage to cope with uneven floors or large gaps.

28mm Extra-Long Fin Flexible 5mm T-Bar Seal VI001

£29.88
£43.19 £29.88
Cross-section of VG005 hook-shape shower seal with 4mm insertion bead and 7mm heightTechnical diagram of VG005 showing 4mm bead width and 7mm total profile height

Framed Hook-Profile Bottom Seal 4mm Track 7mm Fin VG005

£29.99
£43.19 £29.99
Cross-section of VG004 7-shape seal with 7mm side-entry bead and 26mm deep finEngineering diagram of VG004 showing 7mm insertion width and 26mm vertical fin reach

Side-Entry Framed Door Bottom Seal 7mm Track + 26mm Deep Fin VG004

£29.99
£43.19 £29.99
Cross-section of VG002 dual-fin T-seal showing 6mm and 8mm graduated fins for tight gapsEngineering diagram for VG002 seal detailing 8mm bead and 6mm/8mm dual fin heights

8mm Self-Adhesive Double-Finned 6mm + 8mm T-Shaped Seal VG002

£29.99
£43.19 £29.99
Cross-section close-up of the VF005 replacement four fold bath screen seal, showcasing the milky white soft PVC with a unique 5mm solid cylinder top and 19mm overall height, optimized for sealing the base of multi-fold shower doors to ensure smooth operation during complex folding actions.Technical dimension diagram for a 4 fold bath screen replacement seal, detailing the 5mm cylinder head radius, 19mm total height, and profile width, providing precise data for users seeking specific sizes to match older four-fold door tracks.

5mm Cylinder Top 19mm Fin Folding Shower Screen Seal VF005

From £14.88
£43.19 From £14.88
Cross-section close-up of the VF004 folding shower screen seal bottom, showcasing the dark grey soft PVC with a unique 5mm solid cylinder top and 21mm overall height, optimized for sealing the base of framed or folding shower doors to allow flexible movement.Technical dimension diagram for a folding shower screen bottom seal, detailing the 5mm cylinder head radius, 21mm total height, and profile width, providing specifications for replacement projects requiring precise matching for hinge or folding door bottom gaps.

5mm Cylinder Top 21mm Fin Folding Shower Screen Seal VF004

From £14.88
£43.19 From £14.88
Cross-section close-up of the VF003 replacement 4-fold bath screen seal, showcasing the transparent soft PVC with a 5mm solid bulb top and an extra-long 30mm height, designed specifically for four-fold shower door bases requiring maximum coverage to bridge wide floor gaps.Technical dimension diagram for a shower folding screen seal, detailing the 5mm bulb radius, maximum 30mm total height (suitable for largest gaps), and profile width, providing precise specifications for users seeking to cover uneven floors or wide gaps on folding doors.

5mm Bulb Top 30mm Fin Folding Shower Screen Seal VF003 (Max-Gap)

From £14.88
£43.19 From £14.88
Cross-section close-up of the VF002 shower seal for bi fold door, showcasing the transparent soft PVC with a 4mm solid bulb top and an extra-long 29mm height, designed specifically to bridge wide bottom gaps on bi-fold or multi-fold shower doors with superior long-reach coverage.Technical dimension diagram for a replacement 4fold bath screen seal, detailing the 4mm bulb radius, maximum 29mm total height (suitable for deep gaps), and profile width, providing data support for users needing to precisely match older four-fold door tracks and resolve uneven floor issues.

4mm Radius 29mm Fin Folding Shower Screen Bottom Seal VF002 (Long-Reach)

From £14.88
£43.19 From £14.88
Cross-section close-up of the VE03 shower door frame seal strip, showcasing the transparent soft PVC with a unique 7mm T-post, wide base, and a laterally extending second fin, creating a dual-layer leak-proof structure optimized to lock into standard framed door base tracks while blocking both frontal splashes and sideways water run-off.Technical dimension diagram for a framed shower door drip rail and sweep, detailing the 7mm T-head width, wide base dimensions, main sweeping fin length, and specific millimetre measurements of the side channelling fin, providing critical specification data for users needing an exact track match who seek enhanced bottom and side water containment via a dual-fin design.

7mm T-Post "Double-Fin" Frame Seal - Wide-Base 15mm Depth VE03

£14.88
£43.19 £14.88
Cross-section close-up of the VE02 framed shower door drip rail replacement, showcasing the transparent soft PVC with a unique 5mm T-post and dual extra fins extending from both sides, creating a rare triple-layer leak-proof barrier optimized to lock into standard tracks while blocking frontal splashes and water running down both left and right sides of the glass for superior comprehensive waterproofing.Technical dimension diagram for a framed shower door replacement drip rail with vinyl sweep, detailing the 5mm T-head width, 14mm total coverage width, main sweeping fin length, and specific millimetre measurements of both side channelling fins, providing critical specification data for users needing an exact track match who seek to maximize bottom and side water containment via a triple-fin design.

5mm T-Post Frame Seal - 14mm Triple-Fin Leak Guard VE02

£14.88
£43.19 £14.88
Cross-section close-up of the VH007 framed shower door snap-in replacement drip rail with vinyl sweep, showcasing the white soft PVC with a unique 5mm extra-wide T-shaped top and a 14mm long sweeping fin, optimized to lock securely into wider base tracks of framed doors for reliable water channelling and leak prevention.Technical dimension diagram for a framed shower door sweep, detailing the rare 5mm T-leg width, 14mm fin height, and overall profile, providing critical specification data for users seeking a replacement that fits tightly into non-standard 5mm wide grooves in white door frames.

5mm White Framed T-Bar Seal 14mm Fin VH007

£29.88
£43.19 £29.88

Buy the Right Seal First Time

Send us your measurements and a photo for help choosing.

Quality Checked Before Dispatch

Every bottom seal is checked before shipment.

Free Next Day UK Delivery

Fast delivery across the UK.

Manufacturer Since 1998

Experienced shower seal production.

Factory-Direct Bottom Shower Door Seals Since 1998

Since 1998, SIMBA has specialised in shower door seal manufacturing. Our factory-direct supply helps us control profile shape, material flexibility and replacement support for leaking shower screens.

Bottom seals can look similar online, but small differences in glass thickness, fin length, seal height, and gap size can affect the fit.

Not sure which bottom seal fits? Send us your glass thickness, gap size and a photo of your old seal. We’ll help you choose the best match before you order.

Send Us a Photo
Seal Selection Guide

How to Choose the Right Shower Door Bottom Seal

Choose in this order: glass thickness first, then the gap under the glass, then the seal profile or door type.

Choose by Glass Thickness

  • 4–6mm glass For thinner shower screens and many bath screen setups.
  • 8–10mm glass For thicker frameless, pivot and hinged shower doors.
  • 12mm glass Used for thicker or specialist glass panels.

Choose by Bottom Gap

Measure with the door closed, from the bottom of the glass to the tray or floor. If the gap varies, use the larger measurement.

No gap Under 9mm 9–12mm 13–16mm 17–20mm 20mm+

Small gaps usually need a shorter fin. Larger or uneven gaps may need a longer flexible fin or side-fin profile.

Choose by Door Type

Still unsure? Send us a photo before ordering.
Measuring Guide

How to Measure Before Ordering

1

Measure glass thickness

Measure the exposed glass edge with a ruler or caliper. Common UK sizes include 4mm, 5mm, 6mm, 8mm and 10mm.

2

Measure the bottom gap

Close the door and measure from the bottom of the glass to the tray or floor. If the gap is different at each end, use the larger measurement.

?

Need more detail?

Read our full shower screen seal measuring guide

Not sure which bottom shower seal you need?

If your shower door is old, has no model number, or the original bottom 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
Shop Replacement Shower Door Bottom Seals

How Our Bottom Shower Door Seals Help Stop Leaks

A bottom shower door seal fits along the lower edge of the glass to help guide water back into the shower tray. Depending on the design, it may use a flexible fin, sweep or drip profile to improve the seal at the base of your shower screen.

For the best fit, choose a seal that matches your glass thickness, the gap under the glass and the way your door opens. If the fin is too short, water may still escape. If it is too long, it may drag on the tray or stop the door from closing smoothly.

Most bottom shower door seals can be trimmed to length and pushed onto the glass without glue, making them a simple replacement for worn, cracked or leaking shower screen seals. All our bottom shower door seals are quality checked before dispatch, so you can choose a clean, reliable replacement with confidence.

⭐ Customer Reviews for Shower Door Bottom Seals

Brilliant service and product

Thank you very much for tending with detailed attention and professionalism to the little issues/hiccups throughout this delivery process. Much appreciated.

Stephane B.

Brilliant service - so impressed.

This has been a fantastic service in a Sunday. Simba advice and recommendation has been excellent (a Sunday). Huge thanks

Jeremy F.

Perfect replacement bifold door seal

Had a rubber bottom strip deteriorated on a my shower bifold hinge section between the two doors, couldn’t find a replacement from the manufacturer (Coram, Optima) as doors were so old. Took a chance as the ‘T’ seals are the same measurement. Fitted perfectly, really happy.

Gerry K.

RELATED GUIDES

Related Guides for Shower Door Bottom Seals

Practical advice to help you choose, install, and maintain the right seal for your shower door.

Uneven Shower Door Gap? Here’s How to Fix It

If your seal doesn’t sit evenly, standard options may not work. Learn how to fix uneven gaps and choose a better-fitting solution.

Fix uneven gaps →

Complete Guide to Shower Door Bottom Seals

A full overview of seal types, sizes, and how to choose the right fit for your shower setup.

Read guide →

Why Is My Shower Door Leaking at the Bottom?

Understand the common causes of leaks and how to stop water escaping onto your bathroom floor.

Fix leaks →

How to Replace a Shower Door Bottom Seal

A simple step-by-step guide to removing your old seal and fitting a new one properly.

See steps →

Single Fin vs Double Fin Shower Seals

Compare different designs and find out which works best for your water pressure and gap size.

Compare →
FAQ

Frequently Asked Questions

1. How do I choose the right bottom shower door seal?

Start with two measurements: your glass thickness and the gap under the glass. Then compare the side profile of your old seal with the product images. A small difference in channel width, fin length, or seal shape can affect the fit.

If you are unsure, send us a photo of your old seal, glass edge, or leaking area before ordering.

2. What is the best bottom shower door seal to prevent leaks?

The best option depends on where the water is escaping. For most pivot and frameless shower doors, a flexible fin or drip rail bottom seal is usually the first option to check. For very small gaps, choose a slim side-fin or adhesive threshold seal. For sliding doors, check track clearance before fitting a bottom side-fin seal.

For more severe leaks, combining a bottom seal with a D510 water deflector or PV29 shower threshold seal can provide extra protection. You can also check our shower door leaking solutions guide.

3. What is the rubber strip at the bottom of a shower door called?
It is usually called a shower door bottom seal, bottom shower seal, shower screen bottom seal, bottom sweep, or shower door gasket. These seals fit along the bottom edge of the glass to help reduce water escaping onto the bathroom floor.
4. Why is my bottom shower seal still leaking?

A bottom shower door seal may still leak if the seal type does not match your door, the fin is too short, the bottom gap is uneven, or the shower door is not aligned correctly. In some installations, a bottom seal alone may not be enough, especially if there is no threshold strip to help contain and redirect water.

Before choosing a replacement, measure the gap under the glass, compare the side profile of your old seal, and check whether your shower setup needs both a bottom seal and a threshold strip.

5. Are bottom shower door seals universal?
No. Bottom shower door seals are not fully universal. They vary by glass thickness, channel shape, fin length, gap coverage, and door type. A seal that looks similar online may still be too loose, too tight, too short, or too long for your shower door.
6. What makes SIMBA bottom shower door seals different?

SIMBA has specialised in shower door seal manufacturing since 1998. Our factory-direct supply chain gives us better control over profile accuracy, material flexibility, and replacement support.

We also help customers identify hard-to-match seals from photos, especially for older shower screens or discontinued shower door profiles.

7. Do I need to order a sample first?

In most cases, no. Shower door bottom seals are chosen by glass thickness, gap size and profile shape.

If you are unsure, send us a photo of your current seal along with your measurements, and we’ll help you choose the closest suitable replacement before you place your order.