Home & Living
The 10 Best Black Mould Removers UK 2026
· Top 10 comparison · Amazon.co.uk prices checked at publication
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How we choose: Buy Wise Hub hasn't tested these products in person. Our rankings are based on published specifications, Amazon ratings and buyer reviews, and this guide was researched and written with the help of AI tools, then checked by our team. Prices and ratings were correct at the time of writing and may change.
Black mould is a typical UK winter problem. Cold walls, closed windows, steamy showers and washing drying indoors all add up to condensation, and black spots soon appear on window frames, silicone seals, grout and bathroom ceilings. The good news is that most surface mould comes off easily with the right product.
To find the best black mould removers in the UK, we looked at Amazon.co.uk's results for black mould removers, skipped sponsored listings, and shortlisted the most-reviewed sprays, foams and gels from HG, Cillit Bang, Astonish, Cif, Dryzone and others. We read each live product page for what it's designed to treat and how to use it. Many of these products contain bleach, so always read the label, ventilate the room, wear gloves and test on a hidden area first.
Prices, ratings and review counts were checked on Amazon.co.uk on 30 October 2026 and change often. Always check the live price before you buy.
Quick Picks
- Best overall: HG Mould Remover Spray 500ml, £5.38, 4.6★ (44,565 reviews)
- Best foam for ceilings and walls: HG Mould Remover Foam Spray 500ml, £5.60, 4.5★ (30,013 reviews)
- Best for showers: Cillit Bang Black Mould & Mildew Remover 750ml, £6.99, 4.6★ (10,738 reviews)
- Best for washing machine seals: ACTIVE Mould Stain Remover Gel, £10.99, 4.3★ (31,296 reviews)
- Best removal + prevention kit: Dryzone Mould Remover and Prevention Kit, £24.98, 4.5★ (2,950 reviews)
Comparison at a Glance
- HG Mould Remover Spray 500ml: 4.6★ (44,565 reviews) · £5.38 · Best for: most homes · View on Amazon.co.uk
- HG Mould Remover Foam Spray 500ml: 4.5★ (30,013 reviews) · £5.60 · Best for: walls and ceilings · View on Amazon.co.uk
- Cillit Bang Black Mould & Mildew Remover 750ml: 4.6★ (10,738 reviews) · £6.99 · Best for: showers and bathrooms · View on Amazon.co.uk
- ACTIVE Mould Stain Remover Gel: 4.3★ (31,296 reviews) · £10.99 · Best for: washing machine seals and silicone · View on Amazon.co.uk
- Cif Perfect Finish Mould Stain Remover 435ml: 4.7★ (5,848 reviews) · £2.50 · Best for: a cheap all-rounder · View on Amazon.co.uk
- Astonish Specialist Extra Strength Mould Stain Remover 750ml: 4.5★ (3,498 reviews) · £6.49 · Best for: budget value · View on Amazon.co.uk
- Dryzone Mould Remover and Prevention Kit: 4.5★ (2,950 reviews) · £24.98 · Best for: removing and preventing in one · View on Amazon.co.uk
- Furniture Clinic Mould Remover Spray: 4.1★ (2,960 reviews) · £9.99 · Best for: soft furnishings, leather and car interiors · View on Amazon.co.uk
- Gardian Mould Remover Spray 1 Litre: 4.3★ (510 reviews) · £14.99 · Best for: large areas · View on Amazon.co.uk
- Undo Mould Remover Spray 500ml: 4.5★ (313 reviews) · £5.99 · Best for: a UK-made newcomer · View on Amazon.co.uk
The 10 Best Black Mould Removers Reviewed
#1 HG Mould Remover Spray 500ml: Best for most homes
Amazon.co.uk: 4.6★ from 44,565 reviews · £5.38
HG's mould spray has by far the biggest review base in our list, and it's one of the cheapest. The listing says it removes mould and fungus from plastered walls, tiles, bathroom seals, grout, windows and outdoor furniture, and it can be used outside too, around sheds, garages and conservatories. It's a targeted trigger spray designed to reduce splashing. HG describes it as an anti-mould cleaner with a bleaching effect and says it helps prevent regrowth. Because of the bleach, test it on an inconspicuous spot first, especially on coloured surfaces.
Specs (from the listing): 500 ml trigger spray · walls, tiles, seals, grout, windows · indoor + outdoor · bleaching effect
Pros
- Huge review base
- Very cheap
- Works on many surfaces
Cons
- Bleach can mark coloured surfaces
- Spray can drip on ceilings
#2 HG Mould Remover Foam Spray 500ml: Best for walls and ceilings
Amazon.co.uk: 4.5★ from 30,013 reviews · £5.60
HG's foam version uses the same type of formula as the spray but clings to the surface for longer and reduces splashing, so it's better for walls, window reveals and bathroom ceilings. HG says it removes stains in under 30 minutes and describes it as low odour, with a bleaching effect. It's suitable for the same surfaces as the spray, including plaster, tiles, seals and grout, and can be used outdoors. It also has a very large review base.
Specs (from the listing): 500 ml foam spray · clings to vertical surfaces · low odour · bleaching effect · indoor + outdoor
Pros
- Foam clings, less drip
- Low odour formula
- Very large review base
Cons
- Contains bleach
- Smaller bottle than Cillit Bang
#3 Cillit Bang Black Mould & Mildew Remover 750ml: Best for showers and bathrooms
Amazon.co.uk: 4.6★ from 10,738 reviews · £6.99
Cillit Bang's black mould spray is a supermarket staple, and on Amazon.co.uk it has a 4.6-star rating from over ten thousand reviews. The listing says it removes black mould, mildew and dirt from showers, baths and damp surfaces, with visible results in seconds and no scrubbing. Cillit Bang also says it kills 99.9% of viruses, tested to EN 14476. It's a bigger 750 ml bottle, and multipacks are available on Amazon if you get a lot of mould. Note that packaging may vary.
Specs (from the listing): 750 ml spray · showers, baths, damp surfaces · spray and wipe, no scrubbing · kills 99.9% of viruses (EN 14476)
Pros
- Trusted brand
- Large 750 ml bottle
- Multipacks available
Cons
- Bleach-type formula, so ventilate well
- Packaging may vary
#4 ACTIVE Mould Stain Remover Gel: Best for washing machine seals and silicone
Amazon.co.uk: 4.3★ from 31,296 reviews · £10.99
Sprays run off rubber seals and silicone lines. A gel stays put. ACTIVE's gel is designed for front-loader washing machine door seals, fridge seals, shower silicone and grout lines, and it has a huge review base. The listing says you apply it evenly on seals, or along vertical lines, without it running, and leave it to work. ACTIVE says a 207 ml bottle can last up to a year. The price on the product page we opened was much higher than in search results, possibly for a multipack, so check which size you're buying.
Specs (from the listing): Gel · for washing machine seals, fridge seals, silicone and grout · no-run application · 207 ml bottle
Pros
- Stays on seals and silicone
- Huge review base
- Long-lasting bottle
Cons
- Price varies a lot by pack size
- Slower than a spray
#5 Cif Perfect Finish Mould Stain Remover 435ml: Best for a cheap all-rounder
Amazon.co.uk: 4.7★ from 5,848 reviews · £2.50
Cif's Perfect Finish mould spray is one of the cheapest options from a household-name brand, and it has a 4.7-star rating. Cif describes it as a surface cleaner with bleach that tackles mould and mildew stains, as well as tea and wine stains, and says it leaves a shiny finish. It can also be used on a range of outdoor surfaces. The bottle is smaller than Cillit Bang's at 435 ml. Search results showed a very low price, but the product page we opened didn't display a clear one, so check the live price (unverified).
Specs (from the listing): 435 ml spray · contains bleach · mould, mildew, tea and wine stains · indoor + outdoor
Pros
- High rating
- Cheap from a big brand
- Multi-purpose
Cons
- Smaller bottle
- Price not clear on the listing
#6 Astonish Specialist Extra Strength Mould Stain Remover 750ml: Best for budget value
Amazon.co.uk: 4.5★ from 3,498 reviews · £6.49
Astonish's extra-strength mould spray is a popular budget choice. The listing describes it as removing mould and mildew stains in minutes without scrubbing: spray, leave and wipe. It's suitable for walls, uPVC window frames, glass, plastic shower curtains, tiles, grout, silicone, concrete, sinks and plugholes, and Astonish says regular use helps prevent mould returning. It's a 750 ml bottle at a low price, and also comes in multipacks.
Specs (from the listing): 750 ml spray · walls, uPVC, glass, shower curtains, tiles, grout, silicone · spray, leave, wipe
Pros
- Cheap 750 ml bottle
- Wide range of surfaces
- No scrubbing
Cons
- Slightly lower rating than HG
- Strong formula, so ventilate well
#7 Dryzone Mould Remover and Prevention Kit: Best for removing and preventing in one
Amazon.co.uk: 4.5★ from 2,950 reviews · £24.98
Dryzone's kit is a two-step system. Part 1, the Dryzone Mould Eliminator, is a bleach-based cleaner that the listing says shows results in under three minutes. Part 2, the Dryzone 100 Mould Sanitiser, is a biocidal solution designed to kill spores and help prevent regrowth. The kit contains 2 × 450 ml Eliminator, 1 × 450 ml Sanitiser, a microfibre cloth and a pair of rubber gloves. It costs more than a single spray, but it's a good choice if mould keeps coming back in the same corner.
Specs (from the listing): 2 × 450 ml Mould Eliminator + 1 × 450 ml Sanitiser · microfibre cloth + gloves · remove, then protect
Pros
- Two-step remove and prevent
- Gloves and cloth included
- Strong rating
Cons
- Pricier
- Two products to apply
#8 Furniture Clinic Mould Remover Spray: Best for soft furnishings, leather and car interiors
Amazon.co.uk: 4.1★ from 2,960 reviews · £9.99
Most mould sprays here contain bleach and are for hard surfaces only. Furniture Clinic's spray is different: it's formulated for soft and hard surfaces, including leather, fabric and wood, so it suits sofas, car interiors, caravans and carpets. The listing says to spray on, leave for 15 minutes, then blot with a clean cloth. It also claims to remove mould odours and prevent regrowth. Furniture Clinic sells a separate spray for bathroom tiles, so use this one for furnishings. Always patch-test on fabric and leather.
Specs (from the listing): Spray · for leather, fabric, wood, carpets, car interiors · leave 15 min, then blot · removes odours
Pros
- Safe for soft surfaces, per the listing
- Tackles musty odours
- Unique in our list
Cons
- Not for tiles (separate product)
- Lower rating
#9 Gardian Mould Remover Spray 1 Litre: Best for large areas
Amazon.co.uk: 4.3★ from 510 reviews · £14.99
Gardian's spray comes in a 1-litre bottle, the biggest single bottle in our list, which makes sense if you have a lot of wall or ceiling to treat. The listing describes a professional-grade, fast-acting formula that starts working on contact without long scrubbing. Gardian says it's suitable for grout, tiles, walls and shower areas, and even fabric and washing machines, indoors and outdoors. It has a smaller review base than the big brands. The listing doesn't say whether it contains bleach (unverified), so read the label and test first.
Specs (from the listing): 1 L spray · grout, tiles, walls, showers · indoor + outdoor
Pros
- Big 1 L bottle
- Wide range of uses
- No long scrubbing
Cons
- Smaller review base
- Formula not detailed on the listing
#10 Undo Mould Remover Spray 500ml: Best for a UK-made newcomer
Amazon.co.uk: 4.5★ from 313 reviews · £5.99
Undo is a newer, UK-developed mould spray with a good rating from a few hundred reviews. The listing describes a max-strength, bleach-activated formula that lifts visible mould in under three minutes without scrubbing, and says it tackles black, brown, green, yellow and pink mould on hard surfaces such as tiles, painted walls, floors and ceilings. Undo advises avoiding metals and soft furnishings, and testing coloured grout first.
Specs (from the listing): 500 ml trigger spray · bleach-activated · hard surfaces incl. painted walls and ceilings · avoid metals and soft furnishings
Pros
- Good rating
- Clear usage guidance
- UK-made, per the listing
Cons
- Small review base
- Not for metals or fabrics
Buying Guide: How to Choose a Black Mould Remover
Spray, foam or gel?
Sprays (HG, Cillit Bang, Astonish, Cif) are quick for tiles and shower areas. Foams (HG foam) cling to walls and ceilings with less drip. Gels (ACTIVE) stay put on rubber seals and silicone lines, where sprays run off.
Bleach or bleach-free?
Most black mould removers use bleach or chlorine, which is very effective on hard surfaces but can fade fabrics, coloured grout and some paints. For sofas, leather and car interiors, choose a product made for soft surfaces, such as Furniture Clinic's.
Removal versus prevention
Cleaning removes visible mould, but it comes back if the conditions stay the same. Some products, like Dryzone's kit, add a sanitiser to slow regrowth. The real fix is lowering humidity: ventilate after showers, avoid drying washing on radiators, and consider a dehumidifier.
Using mould removers safely
Open a window, wear gloves (and eye protection when spraying overhead), never mix bleach-based products with other cleaners, and test on a hidden area first. Follow the label for contact time.
When to call a professional
Small patches of surface mould are fine to clean yourself. If mould covers a large area, keeps returning quickly, or comes with a damp patch or leak, the cause may be structural, so get it checked.
How we chose
We started with Amazon.co.uk search results for "black mould remover" on 30 October 2026, skipping sponsored listings. We shortlisted well-reviewed products from known brands plus a few strong-selling newcomers, then read each live product page for the listed features and specs. We haven't tested these products in person. Rankings reflect the listed specs, buyer ratings, review volume and value. Where a listing is unclear or contradicts itself, we say so.
FAQ
What is the best black mould remover in the UK?
For most homes, HG Mould Remover Spray. It has the biggest review base in our list on Amazon.co.uk, it's cheap, and it works on walls, tiles, seals and grout. For ceilings, choose HG's foam version, and for showers, Cillit Bang's 750 ml spray is a strong alternative.
How do I remove black mould from silicone sealant?
Use a gel such as ACTIVE's, which stays on the silicone rather than running off. Apply it, leave it for the time on the label, then rinse. Deeply stained silicone sometimes can't be fully cleaned and may need replacing.
Does black mould come back after cleaning?
It often does if the room stays damp. Clean the mould, then reduce humidity: ventilate after showers and cooking, avoid drying washing on radiators, and use a dehumidifier in problem rooms.
Can I use mould remover on painted walls?
Many products say they can be used on walls, but bleach can lighten some paints. Test on a hidden area first. Undo says its spray is suitable for painted walls, and HG lists plastered walls.
Is it safe to use bleach-based mould sprays?
Yes, if you follow the label. Ventilate the room, wear gloves, avoid spraying near your face, and never mix bleach-based products with other cleaners, especially anything containing ammonia or acids.
Stop the mould coming back: see our related guides: Best Dehumidifiers for Drying Clothes UK · Best Heated Clothes Airers UK · Best Heated Throws UK
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