How to remove limescale from a shower screen (and stop it coming back)

Just out of the shower, with the morning light coming through the window. And there it is: the screen covered in white spots, as if it had never been cleaned. You scrub it with your usual cleaner and two days later it looks the same.

It’s not that you’re cleaning it badly. Limescale just doesn’t come off with soap. Here’s how to remove it with products you already have at home, what to do when it’s really built up, what never to use and the routine that stops it coming back.

Why limescale builds up on the shower screen

Tap water carries dissolved minerals, mainly calcium and magnesium. When a drop dries on the glass, the water evaporates and the minerals stay behind. One drop is invisible. After hundreds of showers, it isn’t.

That’s why limescale builds up most at the bottom of the screen and around the door, where it splashes most and the water takes longest to dry. And that’s why an all-purpose cleaner doesn’t shift it: limescale is mineral, and what dissolves it is a mild acid.

It’s worth telling apart two things that look alike:

→ Fresh white spots. They come off in a single pass with any of the methods below.

→ A white haze or a layer that feels rough. That’s limescale built up over months. It needs longer to work and a few repeats.

Method 1: white vinegar and hot water

It’s the easiest option, and almost everyone has it in the kitchen.

1. Mix white vinegar with hot water in a spray bottle. The hot water helps it work better.
2. Spray the whole screen, starting at the top, and the frames too if they have limescale.
3. Leave it for 10 to 20 minutes. This is the step almost everyone skips. If you rub straight away, the vinegar hasn’t had time to dissolve anything.
4. Rub with a microfibre cloth or a non-scratch sponge, in circles on the worst areas.
5. Rinse with the shower, from top to bottom.
6. Dry with a squeegee and go over the edges with a dry cloth. If you let it dry on its own, you’re back to square one.

The vinegar smell goes as soon as you rinse and air the room. If it really bothers you, a few drops of lemon in the mix soften it.

Method 2: citric acid

Citric acid is sold as a powder in hardware shops and many supermarkets. It has no smell and works very well on limescale.

• Dissolve about 20 grams in 250 ml of warm water, roughly a heaped tablespoon in a glass.
• Pour it into a spray bottle and apply it the same way as the vinegar.
• Leave it for about 15 minutes, rub with a non-scratch cloth or sponge and rinse well.

If you clean often, it’s handy to keep a bottle ready under the basin. Label it so nobody mistakes it for something else.

Built-up limescale: the kitchen paper trick

When limescale is months old, the problem is that the product runs down the glass and dries before it can work. The fix is simple:

1. Soak sheets of kitchen paper in vinegar or the citric acid solution.
2. Press them onto the glass where the limescale is worst. When wet, they stick on their own.
3. Leave them for at least 15 minutes, or a bit longer if the limescale is thick. Spray over them again if they start to dry.
4. Peel off the paper and rub with a non-scratch scourer, the white kind or one meant for ceramic hobs or glass.
5. Rinse and dry with a squeegee.

Sometimes it takes two or three rounds. It’s better to repeat than to scrub harder with something that scratches.

For the tracks and corners of the frames, an old toothbrush dipped in the same product gets where a cloth can’t.

If nothing works

If the glass still has a white haze after several rounds, it may not be limescale: over the years, glass can be damaged by limescale and wear and turn cloudy. That can’t be cleaned off. Before you keep scrubbing, test a small corner.

What not to use on a shower screen

This is where most shower screens get ruined:

• Green or steel scourers. They scratch the glass, and once it’s scratched, limescale clings to the marks even more.
• Blades or metal scrapers on glass with an anti-limescale coating. They strip the protective layer.
• Bleach mixed with vinegar or limescale removers. Never mix bleach with acids: it releases toxic gases. If you use bleach on the grout, rinse well and air the room before moving on to vinegar.
• Vinegar or acid on marble, travertine or natural stone. Acid etches them and leaves dull marks that won’t come off. If the shower tray, vanity top or floor is stone, cover it with a towel or work carefully so nothing drips.
• Leaving the product on frames and seals for hours. A few minutes is fine; overnight isn’t.
• Abrasive powders on glass or acrylic. Some older screens aren’t glass but plastic, and they scratch with almost anything.

If you’re not sure what your shower tray or vanity top is made of, test first somewhere that doesn’t show.

How to stop limescale coming back

Removing limescale takes effort. Keeping it away takes much less. The routine that works best has three steps:

1. Squeegee after every shower. Ten seconds. If the water doesn’t dry on the glass, it leaves no limescale. This makes by far the biggest difference.
2. Air the bathroom. Open the window or run the extractor fan for a while. With the humidity around the Bay of Cádiz, a closed bathroom takes a long time to dry, and that also brings mould to the grout.
3. A quick wipe once a week with diluted vinegar or citric acid, before limescale can build up. Five minutes is enough.

There are limescale products that leave a water-repellent layer on the glass so water runs off. They can help, but they don’t replace the squeegee.

One more trick: leave the shower door open after you shower. Air moves and everything dries sooner.

And the rest of the bathroom

The shower screen isn’t the only thing that collects limescale. The same methods work for:

• Taps and the shower head. For the shower head, wrap it in a bag of vinegar and leave it for a while; the holes clear by themselves.
• The basin and plughole, where a white ring forms.
• Tiles, especially around the shower.
• Inside the cistern and around the toilet rim.

Always with the same care: no acids on natural stone and no scratchy scourers on chrome.

When it’s worth letting us do it

With the steps above, almost any shower screen comes up well. But there are times when it’s worth getting help:

• When the limescale is months or years old and you don’t have time for three rounds of kitchen paper.
• When there are several bathrooms, or you’re handing back a rented flat and want it spotless.
• When there’s marble or stone nearby and you’re worried about damaging it.
• In a holiday let, where limescale on the screen is one of the first things guests notice and it ends up in the cleanliness rating. We cover it in our guide to improving your cleanliness rating on Airbnb and Booking.

What to do next

If the limescale has really taken hold, at Hola Limpio we provide home cleaning in Jerez de la Frontera, El Puerto de Santa María, Cádiz, Puerto Real and Rota, and limescale on shower screens, taps and sanitaryware is part of a deep clean. We bring the products and equipment, and our staff are insured.

You can work out a guide price with our quote calculator, choosing “Deep clean”, or send us a photo of the shower screen on WhatsApp on +34 604 82 90 44 and we’ll tell you how it looks to us.