HG Mould Spray – Powerful Black Mould & Mildew Remover for Bathrooms and Kitchens, Quickly Eliminates Stains and Freshens Surfaces - 500ml

Best cleaner for anything that needs to be bleached. Strong smell, but all black/brown marks on window surrounds, sinks etc are gone. Just open a window to dissipate the smell.

I can't praise this product enough. Absolutely brilliant. I have tried various other mold cleaners and this is by far the best. I had mold patches on a plastered wall behind a wardrobe and after 1 treatment the black mold had completely gone. No scrubbing or wiping needed. Simply sprayed it on the affected area and left for around 20 minutes and the wall was completely mold free. Also used around a window in the same room and that is now also free of black mold. I highly recommend this spray to get rid of black mold.

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.

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.

Impressive stuff. I needed to get some black mould spots off a white bathroom ceiling. I sprayed a little of this into a bowl and used a clear paintbrush (don't use a dark one cos it will be bleached and leave brown smears behind - always test first!) to 'paint' over the mould on the ceiling. A quick wipe down with some kitchen towel a few moments later and the mould is gone. Excellent.

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.

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.

This stuff is absolutely fantastic. Partner forgets to leave the washing machine door open so have had a build up of stubborn black mould all around the seal of the door, particularly black at the bottom part. Tried everything brand there is, even well know pink stuff, nothing worked. Sprayed this on thoroughly, it foams up a bit when you spray it, left it overnight, next morning, most of it had gone, sprayed it again and left it overnight, next morning it had all gone! Wear gloves and if you have one, a mask, like the ones we had in covid as it's extremely strong smelling and probably not good to get on your hands. Would definitely highly recommend this. I'm astounded how good this is, good value for money and well worth the purchase...saves buying a new machine (which I nearly did!).