How to Choose the Right Shower Door Seal
Choosing the right shower door seal depends on where the water is escaping, the type of door or screen you have, the glass thickness, the size of the gap, and the shape of the old seal. This guide helps you narrow down the right bottom, side, magnetic, curved, threshold or specialist seal before ordering.
Start Here: Understand the Main Seal Types
If you do not know what your old shower door seal is called, start with the basic seal types. Shower door seals can be fitted to the bottom edge, side edge, closing edge, bath screen or threshold, and each type solves a different sealing problem.
- New to shower seals? Read seal types first
- Want the best seal by problem?
Match the Seal to Its Fitting Position
Choosing a Side or Vertical Seal
For gaps at the sdie, wall, frame or closing edge.
Choosing a Magnetic Closing Seal
For doors that close edge-to-edge with magnets.
How to Choose the Right Shower Threshold Strip
For water deflectors fitted to the tray or bath edge.
Measure Before You Choose
Glass Thickness
Check the glass thickness before choosing a push-on, side or magnetic seal.
Bottom Gap
Measure the gap under the glass before choosing a bottom seal or fin depth.
Side Gap
Check the side gap before choosing a vertical, bulb or magnetic seal.
Check Fit and Special Cases
Push-On vs Self-Adhesive Seals
Compare when a seal should grip the glass edge and when an adhesive strip is better suited to a tray, threshold or fixed flat surface.
When a Push-On Seal Will Not Fit
If there is not enough clearance to slide a push-on seal onto the glass, check which adhesive strip fitting option may work without removing the door.
Why Universal Seals May Not Fit
Universal seals are not truly one-size-fits-all. Check the profile, glass thickness, gap size and fitting position before choosing one.
Compare Seal Profiles and Fin Styles
Single Fin or Double Fin?
Compare single-fin and double-fin profiles before choosing a replacement for your door position and clearance.
Is a Longer Fin Always Better?
A longer fin may drag, fold or affect door movement if there is not enough clearance.
When to Choose a Bulb Seal
Bulb profiles are not usually the best fit for the bottom edge. Check when a sweep-style profile is more suitable.
Should a Bulb Seal Go on the Bottom Edge?
A bulb seal can work in some bottom-edge situations, but it is not always the best choice.
Why Curved Glass Needs a Different Seal
A straight seal may leave gaps or fail to grip properly on curved shower glass. Here’s what to check before replacing yours.
Compare Materials and Replacement Options
Polycarbonate or PVC?
Compare clarity, flexibility, durability and yellowing resistance before choosing a replacement.
Can a Standard UK Seal Replace a Branded Part?
Check when a standard UK profile is a suitable match, and when an exact original part may be safer.
Check Seal Quality Before You Buy
Look at material, grip, flexibility and finish before choosing a replacement seal.
Ready to browse seals?
Ready to compare replacement seals? Browse our main seal collections by fitting position and profile.
Manufacturing glass shower door seals since 1998
Still Not Sure Which Seal Fits?
We’ve manufactured glass and shower door seals since 1998, including bottom seals, side seals, magnetic closing seals and threshold profiles.
Send us a photo of your existing seal, plus your glass thickness and gap size, and we’ll help you choose a suitable replacement before you order.