Every time your shower runs, hard water deposits a little more calcium and magnesium inside the nozzles of your shower head. It’s invisible at first, and then the pressure starts to drop, the spray goes sideways, and suddenly it’s impossible to ignore.
How quickly it builds up depends on your water supply. Hard water areas see it build faster, but it’s a problem every shower head faces eventually.
When it does build up, a short soak with a common household remedy is usually enough to clear it. And you’ve probably already got everything you need under the kitchen sink.
The key is knowing which cleaner suits your shower head’s finish, because descaling a shower head with the wrong one can cause damage that outlasts any limescale.
The method differs slightly depending on whether your shower head is handheld or fixed to the wall and we’ve covered both in this guide.
In this guide:
- Which descaling method is right for your shower head?
- Citric acid
- White vinegar
- Baking soda
- Descaling your shower head safely by finish
- How to make up your cleaning solution
- What you’ll need
- How to descale a handheld shower head
- How to descale a fixed shower head
- How often should you descale a shower head?
Which descaling method is right for your shower head?
Three household options can help shift that limescale, but they’re not all equal.
Some are stronger than others, and the quickest method might not be the safest one for keeping the finish on your shower head looking as good as new.
Citric acid
Citric acid is the strongest of the three and the most effective on heavy, long-standing buildup. It's odourless, which makes the job more pleasant, and it works faster than vinegar. It comes as a powder and you'll find it in most hardware or DIY shops.
It's worth treating it with the same common sense you use for household bleach. Wear gloves, keep the room ventilated, and make sure children and pets are elsewhere while you work.
Eyes are the main thing to protect, so take care when using and consider using eye protection. And as with any cleaning product, never mix it with bleach or chlorine-based cleaners.
White vinegar
White vinegar is one of the most widely used natural cleaning agents, and for good reason.
It's mildly acidic, which means it breaks down mineral deposits without needing anything harsh, and it's effective on moderate limescale buildup. It's also very likely already in your kitchen cupboard.
Distilled white vinegar is the one to use. Brown vinegar can stain, so it's best to avoid it.
Baking soda
Baking soda has earned its place in the cleaning cupboard. It reacts with mineral deposits, loosening and lifting them from surfaces without scratching or damaging the finish underneath.
It won't shift heavy internal buildup on its own, but applied as a paste, it's effective on surface scale and gentle enough for most finishes.
It works well as a follow-up after soaking, or for lighter maintenance between deeper cleans.
Descaling your shower head safely by finish
The risk isn’t in cleaning your shower head day to day, it’s in the soak.
Vinegar and citric acid need time in contact with the limescale to work, and that same soak is what can affect certain finishes if you use the wrong one.
The table below gives you a guide for what solution you can use and for how long when descaling a shower head.
| Finish | Solution | Timing |
| Chrome | White vinegar |
Up to 30 minutes |
| Chrome | Citric Acid | 15 to 20 minutes |
| Matte Black | Baking soda paste only | No more than 15 minutes |
| Brushed Brass (plated) | Baking soda paste only | No more than 15 minutes |
| Brushed Brass (solid) | 50/50 white vinegar and water |
No more than 10 minutes |
| Not sure? | Baking soda paste | No more than 15 minutes |
To keep your finish looking like new, you should avoid using vinegar and citric acid on mat
Testing on a small hidden area first if you’re unsure is always a good idea. And if you are in any doubt, baking soda paste is the safest starting point. It's gentle enough for most finishes and doesn’t take long to use.
Check your manufacturer's guidance too, as some brands give specific advice for their finishes.
Now you have all the information, let’s get started.
How to make up your cleaning solution
- Citric acid: two tablespoons of powder per litre of hot water
- White vinegar: one part vinegar to two parts warm water, or a 50/50 mix with water for solid brass
- Baking soda: mixed with a little water to form a paste
What you’ll need
Your chosen cleaner: Citric acid, white vinegar or baking soda
You’ll also need:
- A plastic bag or container to submerge the shower head
- Elastic bands or string
- An old toothbrush
- A soft cloth
- Gloves
If your shower unscrews from the hose, follow the handheld steps below. If it’s fixed to the wall or ceiling, follow the fixed shower head method.
It’s also worth checking whether your fixed head has a removable spray plate first, as some do, and if it does, the handheld steps will give you better results.
How to descale a handheld shower head
Handheld shower heads can be removed from the hose, which makes the whole process easier. You can submerge the head fully in your chosen cleaner and let it do the work.
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Unscrew the shower head from the hose. Keep the rubber washer safe, it's a small part that's easy to lose and you'll need it when you reattach the head.
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Before soaking, use an old toothbrush to scrub off any loose surface deposits. This makes the soak more effective.
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Submerge the shower head fully in your chosen solution, or apply baking soda paste directly to the nozzles.
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Leave it for the time shown in the table above.
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Once the time is up, go back over the nozzles with the toothbrush to shift anything still clinging on.
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Rinse thoroughly with clean water, reattach the head and run the shower for at least 30 seconds to flush out anything left inside.
While the head is off, it's worth giving the hose a quick clean too. A gentle scrub with baking soda paste or a short soak in diluted white vinegar for around 15 minutes will shift any buildup, just rinse it well before reattaching.
How to descale a fixed shower head
A fixed shower head can't be removed, so you bring the solution to the shower head instead.
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Fill a plastic bag with your solution, or have your baking soda paste ready.
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Submerge the shower head in the bag and secure it tightly around the pipe with elastic bands or string or apply the paste directly to the nozzles.
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Leave it for the time shown in the table above.
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Remove the bag carefully and dispose of the solution.
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Use an old toothbrush to scrub the nozzles and shift any remaining deposits.
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Run the shower for at least 30 seconds to flush everything through.
How often should you descale a shower head?
Once a month is generally enough to stay ahead of limescale, though hard water areas may need it more often. A quick wipe with a soft cloth after each shower helps too, catching deposits before they've had the chance to set.
If your shower still isn't performing after a good descale, it may be time for a new shower head.
Some shower heads now come with silicone nozzles, built to keep limescale from taking hold in the first place and reduce cleaning time. Browse our full range and find the right shower head for you.
