








🌟 Spray, Relax, and Watch Your Outdoors Transform!
Wet & Forget Mould, Lichen & Algae Remover is a powerful, bleach-free outdoor cleaner that requires zero scrubbing. Its highly concentrated 5L formula produces up to 30L of solution, covering large areas like patios, roofs, and solar panels. Safe for multiple surfaces and environmentally mindful, it works by simply spraying and letting natural rain wash away contaminants, while preventing future mould growth for lasting outdoor beauty.









| ASIN | B005IW4GWI |
| ASIN | B005IW4GWI |
| Best Sellers Rank | 51 in Climate Pledge Friendly ( See Top 100 in Climate Pledge Friendly ) 2 in Mould Removers 51 in Climate Pledge Friendly: Shop All |
| Brand | Wet & Forget |
| Customer Reviews | 4.4 4.4 out of 5 stars (27,087) |
| Customer reviews | 4.4 4.4 out of 5 stars (27,087) |
| Date First Available | 24 Aug. 2011 |
| Format | Liquid |
| Is discontinued by manufacturer | No |
| Item model number | WF5 |
| Manufacturer | Wet & Forget Ltd |
| Product Dimensions | 14 x 18.5 x 29.5 cm; 5.23 kg |
| Product Name | Mould Lichen & Algae Remover |
| Units | 5000.0 millilitre(s) |
| Volume | 5000 Millilitres |
D**Y
Mould away
⸻ ⭐⭐⭐⭐⭐ Amazing Results With Zero Effort! Wet & Forget is honestly one of the best outdoor cleaners I’ve ever used. I applied it to my patio, fencing, and the side of the house where mould and green algae always build up. All I had to do was spray it on and leave it — no scrubbing, no pressure washing, nothing. Within a couple of days I could already see the difference, and after a week the surfaces looked like new. It works exactly as promised and keeps the area looking clean for months. It’s also really easy to use and covers a good amount of space. If you’re tired of constant scrubbing or slippery green patches, this product is an absolute game-changer. Highly recommended!
F**Y
Recommended
Does exactly as advertised. I recommend it.
C**M
Greatproduct
Great easy to use should have got another one is does not go as far as I needed
C**G
Works well but give it time!
This is the second time I have purchased wet & forget and the results have been favourable in terms of eventually getting rid of algae, lichen and even moss for a period of time. I originally bought this to treat my block paving drive as I had what I'd described as white chewing gum stains and black spotty marks all over the area. I tried power washing and scrubbing with detergents but nothing seemed to work and then a friend advised to get wet & forget. I was a bit dubious it isn't a cheap option but I decided to give it a go and after 3-6 months I realised pretty much all the stains had gone! Now it certainly does not work overnight but I treated once and left (and genuinely fogot about it)... all the marks had gone, see attached pics of before and after treatment. Since then I have used my second container on my roof and even on a very old roof with high levels of moss growing. Here I did remove some of the moss with a plastic scrapper but the rest was down to spraying this product. It is so simple to do, just dilue 1 part wet & forget to 5 parts tap water, mix and then spray generously on the affected area. It is advisable to do this is dry conditions or when rain is not forecasted that day. Then wait, and over time you will see a difference. To conclude I am going to give this a full 5 stars it does actual work well. Only time will tell if it continues to work but in the case of my drive it remains clear of these marks after over a year+ period so I am genuinely happy with the results. It is not a cheap solution (there are lower cost alternatives which I have not used) but this one certainly delivers.
K**S
Works Like Magic – No Scrubbing Needed!
I bought Wet & Forget after hearing good things about it, and I have to say — it completely lives up to the hype! My patio and garden path were looking pretty green and grimy, but after one application and a bit of patience, the difference was incredible. The best part? No scrubbing, no pressure washing, no effort — just spray it on and walk away. Over the next couple of weeks, the mould and algae started to fade, and the paving slabs now look almost new again. It’s honestly kind of satisfying to watch them slowly clean themselves. The product is easy to use, doesn’t smell too strong, and covers a large area. I also like that it helps keep surfaces clean for months, so it’s great value for money. If you’re tired of spending weekends scrubbing patios or decks, this stuff is a game-changer. Just spray, forget, and enjoy your clean outdoor space!
J**N
Don't expect brickwork to look cleaner.
It didn't make drive look any cleaner but after 4 months no moss has regrown.
W**0
Good product
We have used this a while. Our block paving looks amazing. You must be patient as the rain activates the product. We use an electric sprayer to apply . Very effective. You need to dilute it to the right strength. Would rec9mmend if you are patient
A**R
Brilliant stuff, literally just wet and forget
The photo speaks for itself, this is about 14 months later and it still looks much cleaner than the untreated part. Ive just bought more to do the full roof, plus my house roof.
0**7
This product is the best on the market and worth the cost. My fences have looked great for years with a treatment every 5 to 7 years or so. Plus unlike high pressure cleaning, it doesn't remove the pine wood treatment meaning it is clean but not exposed to termite damage.
4**E
This was sprayed onto a heavy lichen infestation and had started working by the next day with some lichen falling off. Very happy with these results
A**H
Great for mould and algae removal and easy to use.
G**F
Great product and good value with Prime
S**R
Once you are able to work out the mixing ratio volume, spray the product in accordance with the instructions and it works very well. Well worth the cost.
Trustpilot
1 week ago
1 week ago