

🛡️ Defeat mould fast and keep your space flawlessly fresh!
HG Mould Spray is a powerful 500ml chlorine-based cleaner designed to quickly eliminate black mould, mildew, and algae from a wide range of indoor and outdoor surfaces. Its fast-acting formula works within 30 minutes to remove stains and prevent re-growth, making it ideal for bathrooms, kitchens, conservatories, and more. Easy to use with a targeted spray, it’s a professional-grade solution highly rated for effectiveness and versatility.













| ASIN | B000IU40HQ |
| ASIN | B000IU40HQ |
| Best Sellers Rank | 25 in Grocery ( See Top 100 in Grocery ) 2 in Mould Removers |
| Brand | HG |
| Customer Reviews | 4.6 4.6 out of 5 stars (42,994) |
| Customer reviews | 4.6 4.6 out of 5 stars (42,994) |
| Date First Available | 21 Sept. 2006 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Format | Spray |
| Is discontinued by manufacturer | No |
| Item model number | 186050106 |
| Manufacturer | HG Hagesan (UK) Ltd, uk home improvement, HGHAG |
| Manufacturer contact | Unit 2 Lanswood Park Colchester Co7 7Fd |
| Product Dimensions | 2.3 x 3.4 x 4.3 cm; 500 g |
| Product Name | HG Mould Spray |
| Storage Instructions | Transport and store cool, dark and in an upright position. |
| Units | 500 millilitre(s) |
| Volume | 0.5 Litres |
| Weight | 500 g |
P**H
Would Recommend.
Plastic conservatory just been cleaned and damp & mold removed, no scrubbing, mold just disappears in minutes, fabulous product, although keep doors and windows open when using.
S**N
Miracle Product!
Despite the strong chemical odour HG Mould Spray still receives 5 stars. It's advisable (in fact, essential) to use this in a well ventilated situation. Then you can watch the mould disappear right in front of your eyes. Sometimes a second application is needed in cases of thick black mould. But two applications is all you will ever need and in 90% of cases one is sufficient. This product has solved all my mould problems. Only in one area has there been a little re-growth. Highly recommended.
P**X
Extremely effective, but respect the fumes!
I’m impressed with the build quality of the spray nozzle; it gives a good, even mist that doesn't drip too much. It cleared the mildew in our conservatory and garden shed with ease. It’s an incredibly easy 'self-acting' cleaner, but I’m giving it 4 stars because the fumes are very strong—you definitely need gloves and an open window. It’s a relatively cheap way to handle a big job without professional help. Very hard-wearing results.
S**E
Excellent mould remover – fast, effective, and easy to use
I’m genuinely impressed with the HG Mould Spray. It does exactly what it promises and works incredibly fast. I used it on stubborn black mould and mildew in my bathroom (around the shower seals and tiles), and the results were visible within minutes. The stains lifted without any heavy scrubbing, leaving the surfaces looking clean and fresh again. The spray is easy to apply, clings well to vertical surfaces, and covers a good area. A little goes a long way, so the 500ml bottle feels great value for money. While the smell is strong (as expected for a powerful mould cleaner), it clears quickly with ventilation and is absolutely worth it for how effective the product is. What I really like is that it doesn’t just mask the problem — it actually removes deep-set mould stains and restores surfaces to their original appearance. Perfect for bathrooms, kitchens, and any damp areas. Highly recommended if you’re dealing with mould or mildew and want a reliable, professional-level cleaner that actually works. I will definitely be buying this again.
S**E
Good product to remove mould.
Excellent product, does what it says ! Smell a bit strong so keep Room ventilated.
M**0
Works like magic but absolutely stinks!
We don’t have a window in our bathroom and the extractor fan isn’t great, so we get quite a bit of moisture build up and therefore a recurring mould issue. We had mould all the way round the bath sealant, on the tiles next to the shower and on the ceiling above the shower to the point where I thought we were going to have to replace the sealant and repaint the ceiling. I applied the mould spray all over the affected areas and I could see it starting to work after only a few minutes. After 30 minutes all the mould had completely gone with no need to wipe, I just used the shower head to give some of the areas a rinse down and that was it. It’s very impressive stuff to a dullster like me. It hadn’t just masked over the mould, it had actually eaten away at it. It will be interesting to see how quickly the mould returns if at all. One thing I will say though is that it absolutely stinks of chlorine and I’m glad I chose to use it on a day that my daughter was at nursery. The smell is horrible and can be quite overwhelming. I was wearing a pair of gloves as instructed and a full face mask (the kind you would wear if you were spray painting a car) and I could still smell it. Even with all the upstairs windows and doors wide open you could still smell it for hours after and it even lingered into the next day. It actually left me feeling quite short of breath at points and I had to leave the house, so if you have a breathing condition or are quite sensitive to smells then I do not recommend this stuff to you. If you have a baby or young children I would make sure that they are out of the house while you use this or at the very least a different floor to the one you’re using it.
D**E
Amazing mold remover
Amazing product 5 * Really good price We have a terrible problem with mold . You spray on the area with mold and watch it fade away Cannot recommend enough!!! No scrubbing. Must use on a well ventilated room
M**N
Revived my bath sealant!
I was a little skeptical about this product as I have used other mould removers in the past and they require a hefty bit of elbow grease in addition to their mould removing properties... I followed the instructions, sprayed on the affected area (my bath silicone sealant in this case) and left it.. I set a 30 minute timer on my phone and went into the garden. After the 30 minutes had gone by, the first thing I noticed was the strong smell of bleach. Not over powering, but a strong smell nonetheless (keep your windows open). I was AMAZED by the results... 30 minutes on, just wiped away. It was super easy to use! There was only 1 area that needed a second spray, but honestly, the end results were great! For the price, I would definitely recommend this bad boy! We all look at the mould in our bathroom and think, I'll get round to it at some point... Order this now and thank me later, absolute game changer. But like I said, just make sure you keep that window open because it's a strong smell.
T**D
This is NOT the spray! This is the foam version which is NOT as effective as the spray. I ordered 3 times in total. The first one was the spray. The second was the foam version. I thought this was a mistake so I ordered a third one and it's also the foam.
G**E
We used a whole bottle for our basement, we spayed the wall and after 5 mins, the wall became white immediately, better than we expected. Good product but smell bad like bleach. We used the whole bottle for the wall and it cost us about 14 dollars it is a little bit expensive and we have to buy again. over all it is good and highly recommended.
M**.
Does wonders for stubborn water stains and molds in shower area
T**I
Da qualche anno lo acquistavo in Inghilterra, ora finalmente è disponibile su Amazon.it, basta spruzzare sulle zone interessate e rimuove la muffa anche più ostinata in pochi minuti.
S**V
Risultato incredibile, ha rimosso dalla doccia ogni macchia di muffa anche le più ostinate, comprese le fughe. Prodotto consigliatissimo. Ottimo
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