Mould Remover + Grout Seal

A professional-grade product for at-home use. Clean Screen's Mould & Mildew Stain Remover is a fast acting, powerful concentrated gel formula that clings to tiles, silicone, shower heads, ceilings and more.

Clean Screens Grout Seal is a solvent-free, self-assembling micro emulsion. The small molecular chain is creating a capillary impregnation without filling the pores and capillary structure. The product is designed as a water-soluble impregnating agent for masonry, including highly alkaline cement-based surfaces.

Our new double-sided cleaning mitt lifts, traps and removes dirt, soap scum and calcium build up. Perfect for use with our Calcium Dissolver and Mould & Mildew Remover. The fluffy side loosens stubborn dirt, calcium and mould, whilst the other side cleans delicate surfaces without causing damage or wearing down coated glass.

Why You'll Love it

• Powerful Mould Elimination: Thick gel formula clings to vertical surfaces for targeted, fast-acting stain removal.
• Invisible Grout Defense: Solvent-free sealant penetrates grout pores to lock out moisture and stains without altering appearance.
• Professional Results at Home: No contractors needed—get that just-renovated look yourself.
• Safe & Easy Application: DIY-friendly, low-odor, and eco-conscious for peace of mind.
• Optional Premium Mitt: Dual-sided mitt lifts grime on one side and gently polishes on the other—perfect for precision cleaning.

What's Included

You’ll get a bottle of Clean Screens Mould & Mildew Stain Remover—our go-to gel formula for breaking down tough stains and growth on all kinds of wet-area surfaces. We include Clean Screens Grout Seal, a pro-grade emulsion that penetrates deep into grout and masonry to repel moisture and prevent future mould. You also get our double-sided cleaning mitt: one side for scrubbing grime, the other for gently polishing delicate finishes.

How to Use

Just squeeze, spread, and let it cling—our Mould & Mildew Stain Remover does the heavy lifting while you kick back for a few minutes. The thick gel sticks where the grime lives, whether it’s silicone joins, ceiling corners, or tile grout, then rinses away like it was never there. Pair it with the Grout Seal and mitt for a seriously satisfying clean that actually lasts.

Safety Information

Wear gloves, crack a window, and don’t hang around while it’s working—this stuff means business. Avoid using it on surfaces not listed on the label, and keep it away from your eyes and skin. Always test on a small area first to make sure you’re happy with the result. Store it safely, out of direct sunlight and well away from little hands.

Bundles: 2x 300ml Mould Remover + Grout Seal + Double Sided Mitt

2x 300ml Mould Remover + Grout Seal + Double Sided Mitt 300ml Mould Remover + Grout Seal

$74.95

$120.00

Save 38%

Quantity:

30 Day Money-Back Guarantee

Try it risk-free for 30 days or get your money back.

Mould Remover + Grout Seal

$74.95

$120.00

34,000+

Bathrooms Transformed.

14+

Years of Real-World Testing

99.4%

Customer Satisfaction Rate.

See the Clean Screens Difference.

Professional results, proven in thousands of homes.

Before

After

The problem with most mould removal packs

Off-the-shelf combos for mould and grout typically double up on weak formulas that fail both tasks. The mould cleaner bleaches instead of removing, and the grout sealer either leaves residue or doesn’t last. Together, they give a false sense of clean while the root problems keep growing.

6 reasons why we're the best

Engineered in labs—not DIY recipes—our precision formulas target and remove deep mineral films.
Perfected across 35,000+ real bathrooms, not just foam tests—guaranteed commercial-grade performance.
Erases trace molecules at the molecular level—no hidden residue to attract soap scum.
Nano-coating repels water and grime, delivering up to 5 years of lasting protection.
Balanced, biodegradable, and non-toxic recipe—powerful cleaning without harsh chemicals or surface damage.
One easy Kit replaces costly pros and endless scrubbing—restore showroom shine in one treatment.

User Generated Content

On a mission to change bathrooms worldwide.

I’ve tried dozens of cleaners with zero luck. This kit erased stubborn stains in one go, and maintenance a breeze thanks to the nano-coating. My bathroom looks brand new!

Dani S - QLD

I honestly didn’t expect this kit to work so well. But seeing that first streak-free, mirror-bright finish as I checked my progress almost brought tears to my eyes. I recommend this to everyone.

Rita K - WA

If you've tried other products (and they didn't work!) just be glad you finally found this. So so happy with how my shower turned out.

Lucy M - NSW

How it Works

Why Us

Backed by 14+ years of real-world testing, our Australian-made, no-nasty formulas deliver professional-grade glass restoration—and seal in a hydrophobic barrier that keeps your surfaces crystal clear for years.

Professional cleaning, without needing the professionals

The Clean Screens recipe has been formulated over 14 years and used in thousands of Australian homes by our team at Nanoworx.

Full-time trained technicians are just an email away.

No automatic replies, no googled answers. All of our customer service representatives have spent time in the field applying and refining our products.

We will not rest until your shower is clean & restored.

We stand behind all of our products. Every shower is unique, with different water compositions found in every state and town. We work with you to find the best solution, depending on your unique problem.

Best sellers

Discover some of our tried and trusted customer favourites.

01

Meet The Founder

Twenty-plus years on the tools taught Brendan one ruthless lesson: most “specialty” cleaners and sealants break down when the job gets real. Tired of re-doing work because off-the-shelf products couldn’t keep up, he built his own. Every formula you see here started life on a commercial site, under Brendan’s watch, solving problems for architects, builders, and facilities managers before it ever reached your shelf. What you’re buying isn’t hype—it’s a tradesman’s reputation in a bottle.

02

Scientific Backing

Brendan partnered with materials chemists and independent test labs for a relentless four-year R&D sprint: 200+ iterations, accelerated-aging chambers, abrasion rigs, and real-world pH abuse on limestone, marble, and tempered glass. Only the blends that hit professional-grade durability and consumer-grade ease made the cut. The result: lab-verified performance, priced so everyday users can get pro-level results without calling in a contractor.

03

From Job-Site Headaches to Home-Use Heroes

The company was born the day Brendan realised “good enough” products were costing tradesmen—and homeowners—time, money, and credibility. He left the sub-par stuff on the shelf, rented after-hours lab time, and built a range that closes the gap between commercial performance and household convenience. Today we’re still obsessively field-testing every batch, still pushing the science, and still driven by the same promise: if it doesn’t outperform everything else you’ve tried, we won’t ship it.

01

Meet The Founder

Twenty-plus years on the tools taught Brendan one ruthless lesson: most “specialty” cleaners and sealants break down when the job gets real. Tired of re-doing work because off-the-shelf products couldn’t keep up, he built his own. Every formula you see here started life on a commercial site, under Brendan’s watch, solving problems for architects, builders, and facilities managers before it ever reached your shelf. What you’re buying isn’t hype—it’s a tradesman’s reputation in a bottle.

02

Scientific Backing

Brendan partnered with materials chemists and independent test labs for a relentless four-year R&D sprint: 200+ iterations, accelerated-aging chambers, abrasion rigs, and real-world pH abuse on limestone, marble, and tempered glass. Only the blends that hit professional-grade durability and consumer-grade ease made the cut. The result: lab-verified performance, priced so everyday users can get pro-level results without calling in a contractor.

03

From Job-Site Headaches to Home-Use Heroes

The company was born the day Brendan realised “good enough” products were costing tradesmen—and homeowners—time, money, and credibility. He left the sub-par stuff on the shelf, rented after-hours lab time, and built a range that closes the gap between commercial performance and household convenience. Today we’re still obsessively field-testing every batch, still pushing the science, and still driven by the same promise: if it doesn’t outperform everything else you’ve tried, we won’t ship it.

FAQ

How does the Mould & Mildew Remover work?

The remover uses a concentrated gel formula that clings to surfaces, penetrating deep into mould and mildew to dissolve it completely. Simply apply, let it rest, and rinse off for a spotless finish.

Is it safe to use on all bathroom surfaces?

Yes, the remover is safe for tiles, grout, silicone, and other bathroom surfaces. However, always perform a patch test on delicate or painted surfaces to ensure compatibility.

How long does the application take?

The gel works within 1-5 hours depending on the severity of the mould. For optimal results, allow it to sit on the affected area for the full duration.

Can it prevent mould from coming back?

Yes, the remover cleans, restores, and provides protection for up to five years, helping to prevent future mould build-up with regular maintenance.

Is it safe for households with pets or children?

Yes, the formula is designed for home use and does not emit harsh fumes. However, ensure that pets and children are kept away during application and until the area is rinsed clean.

Our customer support is available Monday to Friday: 7am-4pm AWST.Average answer time: 24h

Easy to use with clear instructions and a product that actually works!

Unfortunately it didnt get rid of the calcium build up on my shower screen. I followed the instructions and watched the videos.

The product includes a lot of treatments. I followed the instructions carefully but I think my shower screens were just too far gone.
The nano coating did improve clarity but it’s only temporary.
Was worth a shot given the price of full replacement.

Have tried twice on some areas and see no improvement. The gel is runny and therefore doesn’t stay on vertical grout. I can’t yet use the grout seal as the remover hasn’t done its job. Very
disappointed considering the cost.

So good I am ordering another one for a friend.

Great product my shower screens are like new

Absolutely amazing...water just beads off the glass now..

Have used it twice. Followed instructions on box.Had to buy more pellets. My shower has 2 glass panels and glass door. Not happy with result as can still see calcium on glass. Not convinced that your products are worth the money and the elbow grease for little result. Can not recommend . Very disappointed.

Great products that actually work.

Impressive on moderate damage, but the really damaged pane will need a second run.

Love this product, my shower screen looks brand new again. Grout has also become white again. Worked wonders in the washing machine.

I couldn’t believe how well this product works

Very good product, easy to apply. I live in a town with very hard water so was desperate to find a product that works. Depending on how "clean" the glass is, depends on how much "elbow grease" is required. I did one of my showers with good results. Took me a couple of hours. Started on my second but need another cleaning disc. So will get a few more of these and continue with the 2nd shower. Also used on the shower wall tiles and they came up good too. So far, happy with results.

I have tried many cleaners before but after using this product I can definitely see an improvement. One pellet was not enough so I have ordered more - (we have a large screen) and after another application I think we might have very good success.

We had given up on getting s clean shower screen. This kit restored it to brand new. Absolutely amazing. Highly recommend

Amazing. The mildew/mould just disappeared!

Amazing product…love love love ❤️

Absolutely loved it, we have really hard bore water, the glass screen has had years of water stain I didn’t take any before or after 😫, I was eager to start, but my mum in law thought I put in new glass for her while she was away, so I’d say it worked pretty well, was only 1 panel and a small 3 panel slide door, I used the whole tablet pretty much you couldn’t see through glass it was that bad, so to bring it back like new, was an epic feat. 5 star ratings from me. Thank you so much 😊

Company assured me this product was safe to use on coloured grout. It isn't. It has left grey grout cloudy in patches were it's stripped the colour from the grout.
Do not use coloured grouts.

This product is excellent

Love it. Dose a fantastic job, very easy to use.

Great squeegee..love it.

WOW….what an amazing product! 10/10. I have tried so much products and hacks and wasted so much money and time.This is a life saver for my cleaning business. A HUGE THANKYOU!!❤️

Have never seen anything work like this before… amazing product!

Absolutely amazing product! The only one that works quickly, effectively and ‘does what it says on the tin!’
Highly recommended