Introduction - Best Shower Screen Seals in UK
Finding the best shower screen seal in the UK can be confusing with so many options — we’ve done the heavy lifting for you.
That’s why we’ve tested dozens of popular options to bring you the very best seals — from curved screens to frameless doors.
These picks come from Laura’s in-depth chat with James Liu, founder of SIMBA, a trusted name with over 20 years of experience making and selling shower seals.
In other words: these are solid, tried-and-tested products.
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Why Trust Our Picks?Universal FitEach shower door seal strip we recommend is designed to work with most glass doors and screens—no matter the brand.
Great ValueShower seals wear out over time. That’s why we’ve chosen long-lasting, affordable options that won’t break the bank.
100% WaterproofThe seals below are made to handle daily water impact, resist cracking, and prevent mould build-up.
Easy to InstallAll our recommendations are DIY-friendly and come with videos and step-by-step images — no need to call a pro. |
Best Bottom Shower Screen Seal (UK Top Pick)
We’ve selected 3 of the most popular and practical bottom seals used across the UK.
These work well for shower screen, hinged doors, and frameless walk-in shower doors.
Note:
We’re recommending the styles, not exact sizes.
You’ll need to measure your own shower glass thickness and the gap between the glass and floor to choose the correct fit.
V456S16 – 4mm–6mm Bottom Seal Strip | 13–16mm Gap
V456S16 Specs at a Glance:
- Fits Glass Thickness: 4mm, 5mm, and 6mm
- Gap Coverage:
- Seals 13–16mm gaps with 16mm soft fin (separate use)
- Seals 16–19mm gaps when used with a 5mm threshold strip
- Installation Position: Bottom of the door
- No Adhesive Needed: Push-on design—no tape or glue required
- Material: Durable, flexible PVC
- Color: Clear — blends seamlessly with glass
- Customizable Length: Easily cut to desired length
- Warranty: 10 months
- Returns: 30-day return policy
This is one of the most common and popular bottom shower seals in the UK.
Unlike bulb seals, it doesn’t trap dirt easily. Plus, it’s super easy to trim to fit uneven gaps.
It’s got a side guide that helps channel water straight to the floor.
When installing, the end with the drip rail should face the inside of the shower.
Note: This style is perfect for frameless shower doors, hinged shower doors, and shower screens.
It’s not suitable for framed shower doors.
If you have a sliding shower door, keep scrolling — we’ve got a seal that’s a much better match for you.
After all, nobody wants a soggy bathroom floor!
6mm PVC Shower Screen Bottom Seal Gap 11-14mm SIM-0007
Specs at a Glance:
- Catalog Number: SIM-0007
- Glass: For 6mm Glass
- Seal the gaps: Seal 11–14mm (with included threshold strip)
- Mounting position: Bottom
- Material: PVC
- Color: Clear
- Returnable: 30 Days
- Warranty: 10 months
- Pre-Applied Tape: No tape or glue required
- Installation: Push-in (refer to video for details)
- Can be trimmed to desired length
- Threshold seal included (free)
The SIM-0007 is the go-to bottom seal for sliding glass shower doors.
Its clever design avoids rubbing against the bottom track, which means less wear and a longer lifespan.
If you’ve got a sliding door, this type of seals are the better choice than the drip rail style we mentioned earlier.
6mm PVC Bottom Seal (Gap 21–26mm) – SIM-0008
SIM-0008 Quick Specs:
- Fits Glass Thickness: 5mm–6mm
- Seals Gaps: 21–26mm (with included threshold strip)
- Position: Bottom of shower screen
- Installation: Push-on, no adhesive needed
- Material: Rigid + flexible PVC
- Color: Crystal clear
- Customizable: Can be cut to size
- Warranty: 10 months
- Returns: 30-day return policy
If your shower screen has a larger bottom gap — this one’s for you.
The SIM-0008 is one of the best shower screen seals in the UK for covering wide gaps.
It features two bottom fins — the longer one faces inwards, and the shorter one faces outwards.
This smart design solves the problem single-finned seals have when dealing with bigger gaps.
If your bottom gap is more than 20 mm, a double-finned seal like this is well worth considering.
What to Avoid: A Design Flaw You Shouldn’t Ignore
Some bottom seals on the market are designed with a hollow inner channel where water can easily get trapped.
like:
or
or
The problem? Once water gets in, it has nowhere to drain—and that means lingering moisture, mould risk, and eventual damage.
This kind of design might work in dry climates, but it’s definitely not recommended for UK bathrooms where humidity levels are already high.
Related article: Why Bulb Shower Door Seals Never Be Installed at the Bottom
Best Adhesive for Shower Door Seal — Meet the V312S1223
After chatting with our founder Jack (who’s been in the seal game longer than he’s been in the dating game)
We realised something: most bottom seals on the market just don’t cut it.
Trustpilot reviews are full of frustrated customers saying their seal wouldn’t fit on arrival, or came loose because of tiny measurement mistakes.
So Jack and our engineering team rolled up their sleeves and came up with the V312S1223 — an adhesive bottom seal that works on any glass thickness, designed to withstand the UK’s humid bathroom conditions
Yes, really — whether your glass is 3 mm, 8 mm, 11 mm, or even 20 mm, this little genius will stick around.
It also fits gaps from 12 mm to 35 mm. Just trim it to match your gap, pop it on, and enjoy the strangely satisfying DIY moment of installing your very own shower door seal.
Congratulations — you’ve just adopted your seal.
Best Shower Screen Seal for Curved Glass UK
Curved shower seals actually come in the same styles as the straight bottom seals we mentioned earlier.
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Drip rail – Perfect for frameless or hinged shower doors
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Double fin – Great for larger gaps
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SIM-0007 – Designed for sliding shower doors
The only real difference just the seal is pre-shaped into a curve to match your glass.
But, not every seal can bend to match your curved shower screen.
Some won’t bend at all.
That usually happens because the seal’s curvature wasn’t manufactured to the correct standard in the first place.
We explained the full reason in our guide [ 5 Golden Rules to Choose the Right Shower Door Seal — but here’s the short version: the curve needs to match your glass perfectly.
Just look at the photo — you can see how SIMBA’s seals align flawlessly with the curve of the glass.
When you buy a curved shower seal from SIMBA, you’re getting one that’s made to fit your glass perfectly.
Oh, and here’s a bonus: our V312S1223 Universal Seal also works with curved shower doors! Yes — it’s that versatile.
Best Vertical Shower Door Seal Strip
Yes, yes, yes — here we are. The last but definitely not least part of your shower seal setup: the side shower seal.
It might not need replacing as often as the bottom seal, but trust me, choosing the right one can make a world of difference.
Here’s a simple rule of thumb:
Magnetic seal > F or H-shaped seal (when it comes to sealing performance).
If you’ve got both in front of you, the magnetic seal strip will give you a tighter closure — but it also comes with a higher price tag.
Now, here’s the catch. Magnetic seals require very precise measurements. Their sealing range is almost fixed, with a tolerance of only about 1–2 mm.
For example, our standard DD46 magnetic seal has a 20 mm sealing gap.
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If your gap measures 19 mm, it might not work.
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If it’s 21–22 mm, you’re good — you can even fine-tune the fit by adjusting how the hard PVC part (10 mm high) sits on the glass.
To avoid any disappointment (and returns), we always recommend ordering a sample first.
F- or H-shaped shower seals, on the other hand, don’t have this problem.
As long as your gap falls within our recommended range, they’ll work beautifully — provided your glass panels meet at a standard 180°, 90°, or 135° angle, with no misalignment.
Maybe your want to read:
- 11 Common Shower Door Seal Slip-Ups
- Shower Door Leaking at the Bottom?
- Shower Screen Seal: Which Way Round Should It Go?
Why Choose SIMBA?
With over 20 years of experience in manufacturing and sales, we have continually tested the durability of our shower seals.
We test them in real shower environments, spraying them with water guns and subjecting them to high and low temperatures to ensure they withstand tough conditions.
We also distribute our seals to family, friends, and employees for hands-on testing.
Through side-by-side comparisons, we’ve validated the durability and performance of our seals.
After all these rigorous tests, we are confident that the quality of our products is proven to last.
That’s how we ensure you get the best shower door seal, every time.
Avoid cheap seals—it might only cost £4 now, but having to replace them multiple times quickly adds up to more than the price of a quality one.
The SIMBA Story
SIMBA was founded in 1998, with our founder, James Liu, serving as the Chief Technical Engineer at China’s first glass seal manufacturer, Green Rubber (now closed).
After Green Rubber’s closure, James continued to develop and expand the manufacturing and sales of glass seals, growing from a small team of 10 to over 300 employees today.
We’re proud to work with James in researching and developing the best shower seals featured in this guide, discussing their performance, value, and customer satisfaction.
Ready to upgrade your shower? Browse SIMBA’s premium seals today and enjoy leak-free showers tomorrow!
We’ve got your back when it comes to choosing shower seals
Editor: Laura
Technical Consultant: James Liu.
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Author: Laura Liu Laura joined SIMBA in January 2017 and has since become an integral part of the team. As a seasoned content manager and seal expert, she oversees website optimization and specializes in crafting informative and engaging content about sealing solutions. Her deep knowledge of shower seal technology and market trends ensures SIMBA stays ahead in providing value to customers worldwide. |