A yellowed shower tray is one of those bathroom problems that can make even a clean bathroom look grubby. Over time, shower trays — whether acrylic, fibreglass, or stone resin — can develop a yellow or orange tinge that regular cleaning doesn’t seem to shift. If you’re wondering how to clean a shower tray that has gone yellow, you’re in the right place. This guide covers the causes, the best cleaning methods, and how to keep your shower tray looking white for longer.
Why Does a Shower Tray Go Yellow?
- Hard water limescale — Mineral deposits from hard water build up over time and can leave a yellowish or orange tinge, especially in areas like Cambridge and Hertfordshire where water hardness is high.
- Soap scum — A combination of soap residue and body oils that accumulates on the surface and discolours it.
- Mould and mildew — In poorly ventilated bathrooms, mould can cause yellow or brown staining, particularly around the edges and drain.
- UV exposure — Acrylic and fibreglass trays can yellow over time due to exposure to UV light, especially near windows.
- Chemical reactions — Some cleaning products, particularly those containing bleach used repeatedly on acrylic, can actually cause yellowing over time.
What You’ll Need
- Bicarbonate of soda
- White vinegar
- Washing-up liquid
- Hydrogen peroxide (3% solution, available from pharmacies)
- A soft-bristled brush or non-scratch scouring pad
- Microfibre cloths
- Rubber gloves
Avoid abrasive scourers or harsh chemical cleaners on acrylic or fibreglass trays — they can scratch the surface and make future staining worse.
Step-by-Step: How to Clean a Yellowed Shower Tray
Step 1: Rinse the Tray
Start by rinsing the shower tray with warm water to remove any loose debris and wet the surface. This helps cleaning products work more effectively.
Step 2: Apply a Bicarbonate of Soda Paste
Mix bicarbonate of soda with a small amount of washing-up liquid to form a thick paste. Apply it generously across the yellowed areas and leave it to sit for 15–20 minutes. Bicarbonate of soda is a gentle abrasive that lifts staining without scratching the surface.
Step 3: Scrub Gently
Using a soft-bristled brush or non-scratch pad, scrub the paste into the surface using circular motions. Pay extra attention to the areas around the drain and edges where build-up tends to be heaviest.
Step 4: Add White Vinegar
Spray or pour white vinegar over the bicarbonate of soda paste. It will fizz — this reaction helps break down limescale and soap scum. Leave it for another 5–10 minutes, then scrub again.
Step 5: Rinse Thoroughly
Rinse the tray completely with warm water and check the results. For mild yellowing, this may be enough. For more stubborn staining, move on to the next step.
Step 6: Try Hydrogen Peroxide for Stubborn Stains
For persistent yellow staining, hydrogen peroxide is highly effective. Apply a 3% solution directly to the stained areas, leave it for 30 minutes, then scrub and rinse. Hydrogen peroxide is a natural bleaching agent that’s gentler on acrylic than chlorine bleach and won’t cause further yellowing.
Dealing with Mould Around the Shower Tray
If the yellowing is concentrated around the silicone sealant at the edges, mould is likely the cause. Mouldy silicone is notoriously difficult to clean — in many cases, the most effective solution is to remove the old sealant entirely and replace it with fresh silicone. Before resealing, make sure the area is completely dry and treat any remaining mould with a specialist mould remover.
How to Keep Your Shower Tray White
- Rinse the tray after every shower to wash away soap and shampoo residue
- Use a squeegee or dry cloth to remove standing water
- Ventilate your bathroom well — open a window or run the extractor fan during and after showering
- Do a quick weekly clean with a mild bathroom cleaner or diluted white vinegar
- Avoid leaving shampoo bottles or soap directly on the tray — use a shower caddy instead
- Avoid bleach-based cleaners on acrylic trays for regular use
When It’s Time for a Professional Clean
If your shower tray has years of build-up, or if you’re preparing a property for new tenants, a professional clean is often the most efficient solution. Professional cleaners have access to specialist products and equipment that can restore bathroom surfaces to a much higher standard than DIY methods alone.
End of tenancy cleans in particular require bathrooms to be returned to a high standard — and a yellowed shower tray is one of the most common reasons deposits are disputed.
Let AKT Cleaning Handle It
At AKT Cleaning, we provide professional bathroom cleaning as part of our domestic cleaning and end of tenancy cleaning services across Cambridge, Royston, and Peterborough. Whether you need a one-off deep clean or a full end of tenancy service, we’ll make sure every surface — including that shower tray — is spotless.
Learn more about our end of tenancy cleaning service or book a clean today.
