Mould has a way of showing up when you least expect it. One week, your bathroom looks fine. Next, black spots are creeping along the grout, window seals, or ceiling corners.
If you live in a UK home, you already know the struggle. Cold weather. Condensation. Poor airflow in older properties. It all adds up.
That’s why HG mould sprays are so popular. People reach for them when they want fast results without stripping a room back to bare walls.
But here’s the thing. Not every HG mould spray works the same way. Some are better for bathrooms. Others are safer for painted walls. A few are strong enough to deal with stubborn mould that keeps coming back.
This guide breaks down the top 10 HG mould sprays for UK homes, so you can pick the right one the first time and stop guessing in the cleaning aisle.
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10 Best HG Mould Spray and Similar Products Compared
1. HG Mould Remover Foam Spray – 500 ml
Dealing with black spots in the shower is a total headache. This HG mould spray is a serious tool for getting those surfaces back to looking fresh. Unlike standard liquids that just run down the wall, this stuff actually sticks.
It clings to the grout and seals, giving the formula time to eat away at the grime. You basically spray it, wait about 30 minutes, and watch the stains fade. It is much easier than scrubbing for hours. Plus, the foam stays put, so you don’t get messy splashes everywhere.
Key Features
- Clinging Foam Action: The thick foam stays on vertical walls and ceilings longer to break down deep-set stains.
- Fast-Acting Formula: You only need to leave it for 30 minutes to see those dark fungus marks disappear.
- Versatile Application: Works wonders on bathroom grout, silicone seals, window frames, and even outdoor plastic furniture.
- Built-in Bleaching Effect: It doesn’t just clean; it lightens the surface to make it look brand new again.
- Low Odour Tech: It has a milder scent compared to the harsh, overwhelming smell of traditional bleach cleaners.
Pros
- No-scrub solution that handles the hard work for you.
- The foam reduces the risk of getting chemicals on your clothes or skin.
- High success rate on stubborn black mould that regular cleaners miss.
- Great for overhead use since it won’t drip down your arm.
Cons
- It is a powerful chemical, so you absolutely need to wear gloves and open a window.
- It can cause permanent discolouring if used on the wrong materials, like metal or wood.
Why we recommend HG Mould Remover Foam Spray – 500 ml
We recommend this HG mould spray because the foam stays on vertical tiles much better than the previous liquid versions. It makes cleaning bathroom corners far less frustrating.
Check prices on Amazon: HG Mould Remover Foam Spray – 500 ml
2. Cleanstore HG Mould Spray with Foam Scourer – 500 ml
If you thought the foam spray was handy, adding a dedicated scourer to the mix is a smart move. This set is designed to tackle those particularly stubborn areas where mould has had time to settle into the grout.
While the HG mould spray does most of the heavy lifting by sitting on the surface, having the right sponge helps you get into the nooks and crannies without ruining your kitchen cloths. It’s a simple, no-nonsense kit. You spray it, let it sit for that half-hour window, and then use the scourer to wipe the mess away.
Key Features
- Double Action Bundle: Combines the power of the HG foam formula with a specific scourer for deep cleaning.
- Stay-Put Foam: The HG mould spray is designed to cling to vertical surfaces, preventing runs and messy drips.
- Rapid Stain Removal: Works quickly on black mould and mildew, often showing clear results in 30 minutes.
- Bleaching Properties: Effectively lightens dark stains on white grout and bathroom seals to restore their original look.
- Wide Compatibility: Safe for use on tiles, silicon joints, and even damp areas in sheds or garages.
Pros
- The included scourer makes it much easier to lift loosened grime from textured surfaces.
- Significantly less splashing than standard liquid sprays, keeping your clothes safer.
- Effectively reaches deep into porous grout lines where mould tends to hide.
- Low-odour formula makes it more manageable to use in small, enclosed bathrooms.
Cons
- Requires careful handling and ventilation due to the strong bleaching agents.
- Not for use on sensitive materials, such as aluminium, stainless steel, or coloured surfaces.
Why we recommend Cleanstore HG Mould Spray with Foam Scourer
We recommend the HG mould spray bundle because the scourer helps finish the job that the spray starts. It ensures a much cleaner result on those textured tile joints.
Check prices on Amazon: Cleanstore HG Mould Spray with Foam Scourer – 500 ml
3. HG Limescale Remover Foam Spray – 500ml
Hard water can really do a number on your bathroom, leaving that annoying chalky haze on everything it touches. This HG Limescale Remover is a solid choice if you want to get your taps and shower screens back to their original shine without much fuss.
It is a concentrated foam, so it actually stays where you spray it. This is a massive help for vertical surfaces like shower doors, where liquid usually just runs off. It’s quick, too—you just let it sit for a few minutes and wipe the grime away.
Key Features
- Clinging Foam Tech: The thick foam sticks to vertical walls and taps, giving the cleaner time to dissolve tough scale.
- Professional Strength: This formula is designed to break down stubborn calcium deposits, rust, and even soap scum.
- Material Friendly: It is safe for use on chrome, stainless steel, glass, and ceramic without causing damage.
- Restores Water Flow: This spray is great for clearing out clogged shower heads to get your water pressure back to normal.
- Rapid Action: The product gets to work immediately, requiring only a maximum of five minutes to finish the job.
Pros
- Effectively removes that dull, white film that regular cleaners often miss.
- Safe for a huge variety of materials, including plastic baths and kitchen sinks.
- Prevents new scale from building up if you use it as part of your weekly routine.
- Non-abrasive formula means you won’t scratch your expensive bathroom fixtures.
Cons
- You must leave it to work for a maximum of 5 minutes to avoid damaging surfaces.
- Not suitable for acid-sensitive materials like marble or natural stone.
Why we recommend HG Limescale Remover Foam Spray – 500ml
We recommend this because the foam stays on vertical tiles much better than the previous liquid versions. It is the easiest way to keep your bathroom sparkling.
Check prices on Amazon: HG Limescale Remover Foam Spray – 500ml
4. HG 3 X Bathroom Cleaner 500 ml (Natural Stone Safe)
Finding a cleaner that doesn’t ruin natural stone can be a real headache. Most standard sprays are way too harsh for surfaces like marble or limestone. This HG Bathroom Cleaner is a specialised pick that focuses on being gentle while still getting things tidy.
It’s designed to remove everyday dirt and soap scum without etching or dulling your expensive stone finishes. It leaves behind a nice shine and a fresh citrus scent. Plus, getting a pack of three means you won’t run out halfway through a deep clean.
Key Features
- Natural Stone Safe: Specially formulated to clean sensitive surfaces like marble, travertine, and limestone without damage.
- Dirt and Grime Removal: Effectively lifts daily bathroom mess and soap residue while restoring a natural shine.
- Citrus Fragrance: Leaves your bathroom smelling fresh and clean with a pleasant, light citrus scent.
- Bulk Value Pack: This listing comes with three 500ml bottles, making it a cost-effective choice for larger homes.
- Easy Spray Application: The simple trigger spray makes it quick to apply to walls, floors, or vanity tops.
Pros
- Won’t cause the dulling or “pitting” that common acidic cleaners often do to stone.
- Safe for daily use to keep your bathroom looking polished and well-maintained.
- Perfect for a variety of surfaces beyond just tiles, including stone basins and shelves.
- High rating from users who need a specific solution for high-end materials.
Cons
- More expensive per litre than the standard HG Limescale Remover we discussed.
- It might require a bit more effort for heavy limescale since it lacks harsh acids.
Why we recommend HG 3 X Bathroom Cleaner 500 ml
We recommend this because it protects your investment. It’s the safest way to clean marble bathrooms without worrying about permanent chemical marks or surface damage.
Check prices on Amazon: HG 3 X Bathroom Cleaner 500 ml (Natural Stone Safe)
5. HG Glasses Cleaner – 125 ml
Smudge-filled lenses are a constant annoyance, and it feels like you’re always wiping them on your shirt. This HG Glasses Cleaner is a much better way to handle it. It is a quick-drying spray that cuts right through the grease and facial oils that build up on your frames.
It doesn’t just clean, though; it also helps stop your lenses from fogging up when you’re out and about. It’s small enough to keep in a bag, and because it’s gentle, you won’t have to worry about it stripping away any expensive lens coatings.
Key Features
- Advanced Degreasing: Easily removes greasy fingerprints and dirt from lenses for a crystal-clear view.
- Anti-Fog Property: The formula helps prevent your glasses from steaming up during temperature changes.
- Fast-Drying Formula: Sprays on and dries in seconds, so you aren’t left with streaks or wet patches.
- Coating Safe: Formulated to be gentle enough for all lens types, including those with special protective coatings.
- Versatile Tech Cleaner: Works great on camera lenses, smartphones, tablets, and even magnifying glasses.
Pros
- Leaves a smudge-free finish without the need for intense scrubbing.
- The 125ml bottle is a convenient size for travel or keeping in a desk drawer.
- Much more effective than the HG Bathroom Cleaner for delicate glass surfaces.
- Safe for both plastic and glass lenses, making it a good all-rounder for the family.
Cons
- You need a separate clean cloth or tissue to get the best results.
- The bottle is a bit larger than some pocket-sized “on-the-go” alternatives.
Why we recommend HG Glasses Cleaner – 125 ml
We recommend this because it does more than just clean. The anti-fog feature is a lifesaver, especially if you’re constantly moving between different temperatures.
Check prices on Amazon: HG Glasses Cleaner – 125 ml
6. Cillit Bang Black Mould Remover, 750ml
Moving away from the HG range, we have this absolute beast of a cleaner. Cillit Bang is known for being intense, and this black mould remover definitely lives up to that reputation. It’s designed to destroy mould and mildew in damp spots like your shower or around the bath.
What’s impressive is how fast it works; you start seeing those dark stains shift in seconds. It uses a “Turbo Foam” which helps it spread across the surface, making it a great alternative if you want something that covers a larger area quickly.
Key Features
- Turbo Foam Delivery: The spray creates a powerful foam that covers surfaces quickly and starts lifting stains on contact.
- Instant Action: Provides visible results in seconds, making it one of the fastest cleaners for urgent mould issues.
- 100% Stain Removal: Engineered to completely wipe out black mould marks rather than just fading them.
- Cruelty-Free: A great choice for those looking for effective cleaning power without animal testing.
- Large 750ml Bottle: Offers more volume than the standard HG Mould Remover, giving you extra product for bigger jobs.
Pros
- Extremely fast acting—you don’t have to wait around for 30 minutes like other brands.
- Exceptional value for money, especially with the larger bottle size.
- Very easy to use; just spray, wait a couple of minutes, and rinse.
- Leaves bathroom surfaces looking noticeably brighter and cleaner with very little effort.
Cons
- You cannot leave it on for more than 5 minutes, or it may damage the surface.
- Not safe for natural stone, marble, or metals like brass and copper.
Why we recommend Cillit Bang Black Mould Remover, 750ml
We recommend this because it is incredibly fast and cheap. It is a brilliant, budget-friendly alternative to the HG Mould Remover Foam Spray for quick cleans.
Check prices on Amazon: Cillit Bang Black Mould Remover, 750ml
7. Furniture Clinic Mould Remover Spray – 500ml
Ever wondered how to save a leather sofa or your favourite curtains once those fuzzy green spots show up? Finding mould on delicate surfaces is a real disaster, but this Furniture Clinic spray is a total lifesaver for soft items.
Unlike the Cillit Bang or HG sprays we looked at, which are mainly for tiles and grout, this formula is gentle enough for leather, fabric, and wood. It doesn’t just mask the problem; it actually kills the spores on contact to prevent that musty “old basement” smell from coming back. It’s a specialised bit of kit that helps you save furniture you might have otherwise thrown away.
Key Features
- Safe for Delicates: Specifically designed for porous and soft materials like leather, upholstery, carpets, and wood.
- Spores Killer: Eliminates mould and spores on contact to ensure the growth is dead at the root.
- Odour Neutraliser: Attacks the bacteria and fungi that cause damp, unpleasant smells in your home or car.
- Regrowth Barrier: Leaves a protective layer that helps stop mould from reappearing in the same spot.
- Quick Blotting Method: Only requires a 15-minute wait before you blot the area clean—no heavy scrubbing needed.
Pros
- Won’t bleach or ruin your leather car seats or expensive fabric sofas.
- Perfect for reviving items stored in damp places like caravans or sheds.
- The formula is unscented, so it clears the air without adding a harsh chemical stench.
- Easy-to-follow process that saves you from expensive professional restoration.
Cons
- More expensive per bottle than the budget-friendly Cillit Bang alternative.
- It may not completely remove permanent black staining if the mould has been there for years.
Why we recommend Furniture Clinic Mould Remover
We recommend this because it handles the jobs HG Mould Remover can’t touch. It is the only safe way to clean mould from your leather and fabric investments.
Check prices on Amazon: Furniture Clinic Mould Remover Spray – 500ml
8. Dettol Mould Remover, Multipack of 3 X 750ml, Total 2.25L
If you have a large bathroom or a damp garage that needs constant attention, this Dettol multipack is a massive help. It is a classic bleach-based cleaner that takes the effort out of clearing those stubborn black spots from your grout and tiles.
You don’t have to spend ages scrubbing; the active bleach does the heavy lifting for you. It is also a disinfectant, so it kills 99.9% of bacteria and viruses while it cleans. Getting three large bottles at once means you won’t run out halfway through a big job, making it a very practical choice for busy households.
Key Features
- Heavy-Duty Bleach: A powerful formula designed to lift ingrained mould and mildew stains without manual scrubbing.
- Bulk Supply: This pack includes three 750ml bottles, giving you 2.25L of cleaner to tackle multiple rooms.
- Dual Action: It works as both a visible stain remover and a disinfectant that kills 99.9% of germs.
- Surface Versatility: Safe for use on ceramic tiles, grout, stainless steel, and even acrylic bath tubs.
- Preventative Care: Regular use helps stop mould and mildew from returning to damp areas like kitchens and bathrooms.
Pros
- Excellent value for money compared to buying single bottles of HG Mould Remover.
- Strong enough to clear deep-set stains that regular bathroom sprays miss.
- Works fast on various surfaces, from plastic shower curtains to ceramic sinks.
- Provides peace of mind by sanitising the area as it removes the fungus.
Cons
- The bleach scent is quite strong and requires good ventilation during use.
- Too harsh for delicate surfaces like the leather or wood handled by Furniture Clinic.
Why we recommend Dettol Mould Remover, Multipack of 3 X 750ml
We recommend this because it is the most cost-effective way to keep a large home mould-free. It delivers professional-strength results at a great price.
Check prices on Amazon: Dettol Mould Remover, Multipack of 3 X 750ml, Total 2.25L
9. Dettol Mould Spray, Multipack of 6 X 750ml, Total 4L
If you’re staring down a bigger project than a few bathroom tiles, this six-pack is a serious step up from the Dettol 3-pack we just looked at. It’s essentially the same “hospital grade” power, but in a quantity that’s much better for tackling an entire house or a damp garage.
While the smaller bundle is great for a single deep clean, this 4.5L total supply is for the long haul. It saves you from that annoying moment where you run out of spray right as you get to the worst corner of the room. It’s the same no-scrub, bleach-heavy formula, just delivered in a bulk format that brings the price per bottle down even further.
Key Features
- Massive Bulk Value: Six 750ml bottles give you a huge 4.5L total, perfect for big jobs like cleaning out a shed or attic.
- Hospital Grade Disinfectant: Specifically formulated to kill 99.9% of bacteria and viruses, including antibiotic-resistant strains.
- Ingrained Stain Removal: The active bleach penetrates deep into grout and window frames to lift dark stains without scrubbing.
- Multi-Surface Use: Safe for everything from ceramic basins and toilets to acrylic tubs and shower curtains.
- Preventative Action: Destroys the fungus at the root, making it much harder for mildew to reappear in humid spots.
Pros
- Offers the best cost-per-litre compared to the Dettol 3-pack or the HG singles.
- The trigger spray is consistent and easy to use across large areas like tiled walls.
- Reassuringly powerful—it’s designed for more than just cosmetic cleaning.
- Keeps you stocked for months, even if you’re cleaning multiple damp areas regularly.
Cons
- At 4.5kg for the whole pack, it is quite a heavy box to have delivered.
- Just like the smaller pack, the chemical fumes are very strong, so you need windows wide open.
Why we recommend Dettol Mould Spray (6 Pack)
We recommend this because it’s the ultimate value-for-money choice. If you’re already using the Dettol 3-pack, upgrading to this one is a no-brainer for the extra savings.
Check prices on Amazon: Dettol Mould Spray, Multipack of 6 X 750ml, Total 4L
10. Muffycid Faren Mould Spray
Ever wondered how the pros get rid of thick moss or algae on outside walls so easily? Muffycid Faren is a professional-grade solution that’s a bit different from your standard supermarket sprays like Dettol. It’s incredibly powerful, designed to melt away mould, moss, and even smog stains in under five minutes.
You don’t even need to scrub it. While it’s amazing for your bathroom, it really shines on outdoor pavements and fences where nature has started to take over. It is a concentrated formula, so a little goes a long way.
Key Features
- Industrial Strength: A professional product that eliminates mould, moss, and algae without any mechanical scrubbing.
- Rapid Action: Works extremely fast, completely clearing surfaces in less than five minutes.
- Concentrated Formula: Can be used full strength for tough spots or diluted at 8% for general floor sanitisation.
- No-Rinse Convenience: Designed to be practical; once applied, it helps prevent new growth from forming over time.
- Indoor and Outdoor Use: Perfect for everything from shower cubicles and swimming pools to exterior fence walls.
Pros
- Effectively tackles heavy moss and algae that standard HG Mould Remover might struggle with.
- Very versatile since one 500ml bottle can make up to 4 litres of disinfectant when diluted.
- Saves a massive amount of time because it requires zero “elbow grease” or scrubbing.
- Leaves a protective barrier on the surface to stop the green gunk from coming back quickly.
Cons
- Significantly more expensive per bottle than the Cillit Bang or Dettol options.
- It is a very strong chemical, so you must wear eye protection and gloves during use.
Why we recommend FAREN Muffycid Faren Mould Spray
We recommend this because it is a true professional alternative. It handles heavy-duty outdoor algae and moss just as easily as it clears bathroom mould.
Check prices on Amazon: Muffycid Faren Mould Spray
Buyer’s Guide — Key Factors to Consider When Buying a Mould Spray (UK Homes)
Dealing with mould isn’t just about aesthetics. It can affect how a room feels and even how you breathe in it. But before you grab the first HG mould spray you see online, take a moment to think about what really matters.
Where the Mould Lives
Mould in a bathroom is different from mould on skirting boards or external walls.
- Bathroom/tiles? Look for HG mould sprays that cling well and tackle damp grout.
- On walls or textured paint? A foam formula often works better than a liquid.
- Outdoors or sheds? You might want something that resists rain once it’s applied.
Different surfaces need different sprays. A one-size-fits-all might work, but a targeted solution usually works faster.
Clinging vs Liquid Sprays
Not all sprays behave the same.
Foam sprays stick to vertical surfaces longer. That means the active stuff has time to work on the mould rather than sliding away. Great for tiles, grout and corners where liquid sprays just run off.
Standard liquid sprays are fine for quick misting on flat surfaces or horizontal shelves.
Strength and Safety
Stronger HG mould sprays remove tougher mould, but there’s a trade-off.
- Strong chemical sprays often work faster.
- But they can also irritate skin, eyes or lungs if used without gloves or good ventilation.
Check the label. If it mentions bleach or chlorine, keep windows open and gloves on. And never mix different cleaners — that can create dangerous gases.
Surface Compatibility
This matters more than most people think.
Some HG mould sprays are safe for grout and sealants but can discolour or damage painted surfaces, wood, metals or decorative plaster. Always test a small patch first.
If your walls are painted with delicate or antique finishes, choose a gentler formula.
Odour and Vacuuming Needs
Let’s be honest — strong cleaners can smell strong.
If you’re cleaning a small space like a bathroom or utility room, consider a low odour spray. It makes breathing easier and lets you use the room again sooner.
And if you’re sensitive to smells, factor that in.
Preventing Mould From Returning
Some products claim to prevent regrowth after cleaning.
That doesn’t mean mould will never appear again — damp environments always encourage it — but these sprays often leave a protective layer that slows down return.
Pack Size and Frequency
Are you cleaning once or maintaining regularly?
- A single small HG mould spray bottle might be fine for a one-off blitz.
- If mould is recurring or widespread, you might prefer a larger pack or a regular-use product.
Buying in bulk can save money if you use them often.
Conclusion
Mould in the home is frustrating, persistent, and sometimes even unhealthy. But with the right HG mould spray, it doesn’t have to be a constant battle. From stubborn black stains on tiles and grout to damp corners that keep coming back, the right product can tackle the problem quickly and safely.
Foam sprays cling to vertical surfaces, liquids work fast on flat areas, and some formulas even help prevent regrowth. The key is choosing one suited to your surfaces, following safety instructions, and ventilating well.
A carefully chosen HG mould spray turns a dreaded cleaning task into a quick, effective solution — leaving your home fresher, safer, and far less stressful.
Answering FAQs – HG Mould Spray
Can I sleep in a room after using HG mould spray?
It’s best to ventilate the room well and allow the spray to dry before staying in it. HG mould sprays can have strong chemicals, so fresh air reduces irritation from fumes.
How long does HG Mould Spray take to work?
Most HG mould sprays work within 30 minutes. Foam formulas cling longer to vertical surfaces, which helps tackle stubborn mould more effectively.
Can you leave HG mould spray on?
Yes, but follow the instructions carefully. Typically, the HG mould spray is left for around 30 minutes before rinsing or wiping. Leaving it longer won’t usually harm surfaces, but always test a small area first.
How do I apply HG mould spray correctly?
HG mould spray evenly from a few centimetres away. For foam sprays, let the foam cling to vertical surfaces. Wear gloves, ventilate the room, and rinse or wipe after the recommended time. Avoid mixing with other cleaners.
What’s the difference between HG mould spray and HG mould remover?
HG mould spray is usually liquid and works well for quick applications or flat surfaces. HG mould remover often comes as foam and clings better to tiles, grout, and vertical surfaces for tougher stains.
Is Dettol better than HG mould spray?
Dettol can disinfect surfaces and remove light mould, but HG mould sprays are formulated specifically for stubborn bathroom mould and mildew. For thick or recurring mould, HG is generally more effective.
