10 Best Toilet Cleaners UK 2024 | Harpic, Bio D and More

It comes as no surprise that Harpic Power Plus Toilet Cleaner regularly tops the best-selling charts for toilet cleaners. It has a multi-pronged approach to ensuring you have the cleanest loo around, targeting tough stains from rust and urine, while also removing every last bit of limescale, dirt and odour, thanks to its key ingredient, hydrochloric acid.

It not only freshens but disinfects, killing almost all germs. Cleaning both above and below the waterline, Power Plus acts quickly and effectively to give you the number one clean in less time with less effort!

Effective even on caked on limescale, Domestos Zero Limescale is tough on toilet grime. Choose between fresh lime scented or ocean fragranced options for this powerful germ-killing, limescale dissolving gel. It contains hydrochloric acid for maximum limescale removal.

It’s also three times thicker than other limescale removers, making it adhere far better to the limescale. This makes it more effective - so simply squirting it around your rim and leaving it to get to work for 30 minutes will leave you with a fresher, sparklier loo and save you hours of scrubbing.

These exceptional power clean tablets can simply be dropped into your toilet bowl to get to work on deep cleaning your loo, leaving it fresh and sparkling - they are effective on light stains in just 20 minutes. Reviewers swear by using 2 or 3 tablets together and leaving overnight, for tough limescale stains.

The fizzing tablets remove staining and limescale build-up below the waterline, targeting the U-bend region. The end result is a fresh, clean loo you can be proud of, with very little work on your part! They offer very little scent - which is a bonus if you dislike artificial fragrances in your home.

This super strength toilet gel will power through even the most hardened on limescale and staining without damaging your toilet. Spray on this powerful gel and in just 20-30 minutes, this cleaner will demolish limescale, uric acid and other deposits that build up in your toilet bowl and under the rim.

This thick liquid cleaner gives you a fresh, sanitised toilet with minimal brushing. HG also makes a range of other cleaning and maintenance products which are also highly recommended by reviewers.

Bio D is a popular, highly effective eco-friendly toilet cleaner that doesn’t contain chemicals, enzyme or animal products. Its gentle formulation contains no bleach and is biodegradable, keeping it safe for waterways and animals and suitable for use even with septic tanks and cesspits. 

It's environmental credentials don't affect its powerful cleaning action - it’s tough on stains and limescale but gentle on your fixtures and fittings, as it contains citric and acetic acids to dissolve limescale without harming the ceramic of your toilet.

This innovative in-cistern toilet cleaner disinfects, deodorises, tackles limescale and zaps stains all in one handy block. It’s very versatile and is suitable for any office, home, motorhome or boat loo (with a removable top). 

The block is placed in the cistern and gets to work killing germs, cleaning stains, neutralising odours and keeping limescale away so that your toilet stays fresh and clean, flush after flush. The block is coloured, so each flush turns the water blue (green and purple options are also available), making it easy to see when it's time to replace it.

This British-made plant-based toilet cleaner comes from Suma, an ethical worker cooperative based in Yorkshire. Their Ecoleaf brand encompasses a range of gentle, yet effective cleaning products and this is no exception. 

Certified by the Vegan Society as well as Cruelty Free International, this is a great cruelty-free and environmentally-friendly way to keep your loo squeaky clean. This product is biodegradable, so does not harm aquatic life.

This eco-friendly, British brand offers a range of products designed to offer non-toxic, plant-based cleaning solutions for your household. Their bleach-free toilet cleaner uses citric acid to deep-clean your toilet. 

Cleaning is simple with this thick gel as it works effectively on limescale and germs. Just squirt it under the rim and leave it to work, then give the bowl a quick scrub and you’re done! If you prefer toilet cleaners with strong scents, this might not be the product for you as the fragrance is subtle and barely noticeable.

Featuring the distinctive shaped “duck” neck that allows you to get the product right up under the rim, this cleaner is effective against limescale and odours, although some of the other cleaners on this list do perform somewhat better.

This thick gel formula helps clean your toilet both above and below the waterline, killing germs to leave your toilet not just sparkling clean, but hygienically clean! It comes in a variety of fragrances to choose from, so will suit those who like to use scented products in the home.

The only powder in our round up - Bloo’s Foam Aroma Fragranced Powder fizzes and foams up when added to the bowl, to remove limescale and odours, leaving your loo fresh and clean. 

Available in a range of fragrances, a daily capful in the bowl left overnight will ensure that limescale is kept at bay. Although not quite as effective as some of the other cleaners on the list, this cleaner wins bonus points for frothing impressively when first added!