If you’re looking to know about installing shower panels, then this article covers everything you need to know. From preparing your walls to sealing them up and fixing problems. The shower panels are easy to install compared to tiles, and their finishing makes them suitable for bathrooms.
What You’ll Need
Having the right tools to hand before you begin helps keep the fitting process smooth and avoids unnecessary interruptions once panels are cut and adhesive is applied. Most items are standard DIY tools, with a few panel-specific materials needed for sealing and fixing. If you’ve got a shower panel kit, you should have everything needed to get started.
- Shower panels
- Spirit level
- Utility knife or fine-tooth saw (a utility knife is suitable for straight cuts and trimming, while a fine-tooth saw is better for longer cuts or thicker panels.)
- Waterproof panel adhesive
- Caulking gun
- Silicone sealant
- Clean cloths
Recommended Extras
- Safety glasses
- Gloves
- Screws and wall anchors (only required for uneven or problematic walls)
Preparing the Shower Wall Before You Fit Shower Panels
Walls must be solid, flat and completely dry before you begin fitting shower panels. Remove any fixtures such as shower heads, rails, shelves or brackets, along with loose paint, adhesive residue or flaking material. Dust, grease and soap residue can weaken the adhesive bond, so clean the surface thoroughly and allow it to dry fully.
Small flaws on the wall can be sanded down, while bigger flaws such as hollows, broken plaster, or flaking will have to be fixed. The shower panels require complete contact on the walls, and where this is impossible, the panels could become loose when drying and even allow gaps to appear later on.
Check the wall with a straight edge or spirit level to identify uneven areas early. Bathrooms are rarely perfectly square, so planning your layout in advance helps avoid alignment issues. If the wall is badly uneven or damaged, reboarding with plasterboard or tile backer board provides a stable, flat base and ensures the panels sit correctly once installed.
How to Fit Shower Panels Over Tiles
Yes, you can fit shower panels over existing tiles as long as the tiled surface is stable, flat and well bonded. Tiles must be secure with no movement when pressed, and hairline grout lines or light texture are not a problem. However, any loose, cracked, hollow‑sounding or missing tiles should be removed before installation, as movement behind the panel prevents proper adhesive contact and can cause lifting or gaps once the shower is in use.
If tiles need removing, reboard the area to create a smooth, continuous surface before fitting your panels. When bonding onto glazed tiles, lightly sand the surface and apply adhesive in continuous vertical lines to ensure full contact. Support and align the panels carefully while the adhesive cures, as fitting over tiles leaves less margin for adjustment compared to fixing directly to plasterboard.
Step‑by‑Step Guide: How to Fit Shower Panels
After you’ve got your walls ready, then you’re ready to start putting up the panels. It is not difficult to install your panels, but the key thing here is to do everything correctly in sequence. The following steps will guide you through the whole process, so that the result would turn out to be perfect.
1. Measuring the Shower Area
Start by measuring the full height of the wall, from the top of the shower tray or bath edge up to the ceiling (or the height the panels will finish). Take this measurement at both ends of the wall and use the shortest measurement.
Next, measure the width of the wall where panels will be fitted. Again, measure at the top and bottom, as walls are often slightly out of square. Be sure to write all measurements down before cutting. Panels should always be cut to suit the wall, not forced to fit once adhesive has been applied.
Before moving on, decide where the first panel will start and where the final cut panel will sit. Positioning full panels on the most visible wall helps keep any trimmed edges out of sight.
2. Cutting the Panels
Panels should be cut before any adhesive is applied, using the measurements taken in the previous step.
Mark cut lines clearly on the back of the panel using a straight edge. For straight cuts, a utility knife can be used to score and snap the panel. A fine-tooth saw is better suited to longer cuts or thicker boards. Cutting from the rear also helps keep the visible face clean.
Once cut, dry-fit each panel against the wall to confirm the size. Any trimming should be completed before moving on, as panels cannot be adjusted once adhesive has been applied.
3. Adhesive Application & Panel Alignment
Adhesive should be applied to the back of the panel, not the wall. Use a high-strength panel adhesive suitable for bathroom environments, applied in continuous vertical runs from top to bottom of the panel.
Start with the first panel at one edge of the wall. Position it carefully, check it is straight and then press it firmly against the wall. The position of this first panel sets the line for all panels that follow, so make sure you check the alignment before the adhesive begins to cure.
Fit panels one at a time, applying adhesive to the back of each panel before positioning it. Each additional panel is joined using the tongue and groove edge. Slide the tongue into the groove and bring the panel across until the joint closes fully from top to bottom.
Panels should meet cleanly without forcing them together, as excessive pressure can affect alignment or cause adhesive to squeeze out behind the board. Check alignment as you go and make any adjustments immediately, while the adhesive is still workable.
We recommend working across the wall in sequence, as it helps keep joints straight and spacing consistent throughout installation.
4. Securing Panels (When Required)
In most installations, adhesive alone is sufficient to secure shower panels to a properly prepared wall. Panels should sit firmly once pressed into place and remain stable while the adhesive cures.
Additional mechanical fixing is only required where walls are uneven, problematic, or where extra support is needed during curing. In these cases, screws and wall plugs can be used sparingly at the panel edges or along trim lines, where fixings will be covered once finishing trims are fitted.
If fixings are used, panels should still be aligned first and held flat against the wall before securing. Screws should never be over-tightened, as this can distort the panel face or affect the tongue and groove joint.
5. Applying Sealant
Sealing is needed only at the external junctions, but not along the visible tongue-and-groove joints. Tongue-and-groove interlocking provides a waterproof connection. But still, for those places which are subject to the greatest exposure to water – like the wall with the shower head or riser rail – a thin line of silicone can be applied inside the tongue-and-groove prior to closing the joint.
Apply a continuous bead of high‑quality sanitary silicone along the bottom edge where the panels meet the shower tray or bath, and along vertical edges where panels meet corner trims or wall trims. If the panels finish below the ceiling, run a neat bead along the top edge as well.
Smooth the sealant immediately using a finishing tool or a wet finger to ensure full contact and a clean finish. Avoid over‑applying silicone, as excess sealant attracts dirt and is difficult to remove once cured.
6. Cleaning Up and Curing
Remove any excess adhesive or sealant while it is still wet using a clean cloth. Leaving residue to cure on the panel face can be difficult to remove without marking the surface.
Once panels are fitted and sealed, allow the adhesive and silicone to cure fully before using the shower. Curing times vary by product, but panels should generally be left undisturbed for 24 to 48 hours to ensure the bond has set properly.
We recommend avoiding water or steam during this period, as early use can weaken the bond and compromise seals at edges and joints.
Troubleshooting Common Shower Panel Problems
Even with careful preparation and installation, small adjustments may sometimes be needed during fitting. Knowing what to look for, and how to correct it early, helps keep the installation clean and avoids unnecessary rework later on.
Panels Not Lining Up Correctly
This usually happens when the first panel is not set straight or when alignment checks are skipped between panels. If the adhesive is still workable, gently ease the panel back into position and recheck with a spirit level. If curing has already started, it’s often better to correct the issue at the next joint rather than forcing panels into line.
Gaps Appearing at Joints
Gaps between panels are typically caused by panels not being fully closed along the tongue and groove edge. Panels should slide together cleanly without force. If a gap appears during fitting, check for adhesive build-up behind the joint and remove any excess before repositioning.
Panels Shifting While Curing
Movement during curing is often linked to uneven walls or insufficient initial support. Panels should be pressed firmly into place and checked immediately after fitting. Where walls are slightly problematic, temporary support or light mechanical fixing can help keep panels stable until the adhesive sets.
Excess Adhesive or Sealant on the Panel Face
Adhesive or silicone squeezing out usually means it has been applied too close to the panel edges. Any excess should be wiped away while still wet using a clean cloth. Once cured, removal becomes difficult and can mark the surface.
Sealant Not Adhering Properly
Sealant issues are often caused by damp surfaces or residue left behind from cleaning products. Edges should be dry and free from dust before sealing. If sealant lifts or fails, remove it completely, clean the area, and reapply a fresh bead.
Uneven Finish Along Edges or Trims
This is often down to rushing the sealing stage. Applying sealant slowly and smoothing it immediately helps achieve a consistent finish. We find that taking a few extra minutes here makes a noticeable difference to the final appearance.
Completing Your Shower Panel Installation
Before using the shower for the first time, take a few minutes to check everything has set as expected. Gently press each panel to confirm it feels secure and free from movement.
Inspect all sealed edges where panels meet the shower tray, corners, and trims. The silicone bead should be continuous with no gaps. If anything looks incomplete, reseal it now while the area is still unused.
With panels secure and seals in place, the installation is finished. Ongoing care is simple, occasional cleaning with a soft cloth and mild cleaner helps maintain the finish and keeps seals in good condition. With no grout to manage, maintenance stays minimal over time.
Shop Easy to Fit Shower Panels
Our shower panels are made to be fitted without the complexity of tiling. Large panel sizes reduce joins, tongue and groove edges keep alignment straightforward, and installation works with standard tools rather than specialist equipment.
Shower panels are available in gloss, marble, stone, and sparkle finishes, with options suited to full bathroom refits or straightforward replacements. We also offer shower wall panel kits if you want panels, trims, and accessories supplied together, removing the guesswork before you start.
Free samples are available so you can check finishes and panel thickness before ordering, and all panels are backed by fast delivery and long-term warranties.
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