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Wet & Forget: Moss & Algae Remover
Meet our original hero product - the solution to all your outdoor cleaning needs. This non-bleach, biodegradable formula removes moss, mould, lichen and algae and leaves exterior surfaces looking as good as new.
The Easiest Way To Remove Moss, Mould, Lichen & Algae.
Fed up with battling those stubborn black and green stains that pop up faster than you can clean them? Wet & Forget Moss, Mould, Lichen & Algae Remover is the superhero to save the day. No harsh chemicals, no endless scrubbing - just a simple spray and walk away. Let Mother Nature take care of the rest. Every time it rains, your surface gets a little bit cleaner as the weathering helps to remove the decomposing organic matter. From the roof to the pavers, your entire outdoor space will be spotless without you having to break a sweat.
Tackles ALL Outdoor Surfaces
Spray on your roof, caravan, bricks, pavers, graves, tent, tennis court, and even the moss on your lawn.
How does Moss, Mould, Lichen & Algae Remover work?
Its biodegradable, selective surfactants target unwanted growth on any outdoor surface without harming your plants or pets (just keep your furry friends out of the way while it dries). Simply dilute one part with five parts water, apply with your garden sprayer, and let it do the rest! No scrubbing, no water blasting, just a cleaner outdoor space. The big 5-litre bottle makes it the perfect solution for large areas year after year.
Heads Up: While you might see some instant results (like moss turning brown), Wet & Forget truly works its magic over time. One application not only removes existing growth but also provides long-lasting protection against new moss, mould, and lichen for up to a year. So, sit back, relax, and let Wet & Forget do the hard work for you.
Wet & Forget: Moss & Algae Remover
Meet our original hero product - the solution to all your outdoor cleaning needs. This non-bleach, biodegradable formula removes moss, mould, lichen and algae and leaves exterior surfaces looking as good as new.
The Easiest Way To Remove Moss, Mould, Lichen & Algae.
Fed up with battling those stubborn black and green stains that pop up faster than you can clean them? Wet & Forget Moss, Mould, Lichen & Algae Remover is the superhero to save the day. No harsh chemicals, no endless scrubbing - just a simple spray and walk away. Let Mother Nature take care of the rest. Every time it rains, your surface gets a little bit cleaner as the weathering helps to remove the decomposing organic matter. From the roof to the pavers, your entire outdoor space will be spotless without you having to break a sweat.
Tackles ALL Outdoor Surfaces
Spray on your roof, caravan, bricks, pavers, graves, tent, tennis court, and even the moss on your lawn.
How does Moss, Mould, Lichen & Algae Remover work?
Its biodegradable, selective surfactants target unwanted growth on any outdoor surface without harming your plants or pets (just keep your furry friends out of the way while it dries). Simply dilute one part with five parts water, apply with your garden sprayer, and let it do the rest! No scrubbing, no water blasting, just a cleaner outdoor space. The big 5-litre bottle makes it the perfect solution for large areas year after year.
Heads Up: While you might see some instant results (like moss turning brown), Wet & Forget truly works its magic over time. One application not only removes existing growth but also provides long-lasting protection against new moss, mould, and lichen for up to a year. So, sit back, relax, and let Wet & Forget do the hard work for you.
Rapid Application: Moss & Algae Remover
Tired of scrubbing away at moss, mould, and lichen? Our Rapid Application Moss, Mould, Lichen & Algae Remover does the hard work for you. This powerful, bleach-free formula cleans outdoor surfaces quickly and easily, with no scrubbing or pressure washing needed.
The Best Moss, Mould & Lichen Outdoor Cleaner On The Market
No need to drag out boring chores any longer than they need to be thanks to Rapid Application. It’s designed with a revolutionary Reach Nozzle which covers up to 100m² in just five minutes, whilst dispensing the product fifty times faster than your average garden sprayer.
It’s the full outdoor cleaning crew you need, all in one bottle. All you need to do is apply the cleaner walk away, Mother Nature takes care of the rest. Rain and wind activate the magic, breaking down the contaminated grime and washing it away, bit by bit until your surfaces are clean.
Tackles ALL Outdoor Surfaces
Boost your curb appeal with this all-in-one concentrate. It easily tackles grimy green stuff on your roof, paving, lawn, solar panels, camper, tennis court…you name it!
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Fast and Effective: Revolutionary Reach Nozzle covers up to 100m² in just 5 minutes, 50x faster than standard sprayers.
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Versatile: Tackles grime on roofs, paving, lawns, solar panels, campers, tennis courts, and more.
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Easy to Use: Simply attach to your hose and spray. No mixing, no mess.
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Long-Lasting Protection: One application prevents regrowth for up to a year.
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Safe Formula: Biodegradable, non-caustic, and safe for plants and pets.
How does Rapid Application Moss, Mould, Lichen & Algae Remover work?
Tired of battling moss, mould and algae? Let this powerful formula do it for you. Its biodegradable surfactants effectively remove unwanted growth from any outdoor surface, while its non-caustic, non-acidic nature ensures it’s safe for your plants and pets. Simply attach your hose and begin spraying. No ladders, no scrubbing, no bleach and no aggressive water blasting.
Transform Your Outdoor Spaces Today
Rapid Application Moss, Mould, Lichen & Algae Remover is the fastest, easiest way to restore your outdoor surfaces to their natural beauty. Order yours today and see the difference!
Easy Hose Applicator
Our easy-to-use Reach Nozzle makes cleaning a breeze. Simply attach your hose, choose your setting, and spray! The flat fan is perfect for up-close cleaning, while the jet setting tackles those hard-to-reach spots up high. No ladders, no hassle - just effortless cleaning.
No mixing or mess, the sprayer automatically regulates the dilution rate for you.
Heads Up: While you might see some instant results (like moss turning brown), Wet & Forget truly works its magic over time. One application not only removes existing growth but also provides long-lasting protection against new moss, mould, and lichen for up to a year. So, sit back, relax, and let Wet & Forget do the hard work for you.
IMPORTANT: You can't use regular Wet & Forget 5L (blue) with the Rapid Application hose fitting. It will NOT work as dilution rates are very different!!
Double Bubble: House Wash
House proud but your exteriors are letting you down? You need our Double Bubble House Shampoo. Like a spa day for your home, this clever cleaner dissolves dirt and grime in just one spray, leaving your walls looking as good as new.
Boost Your Curb Appeal with Our House Wash
We get it. Keeping on top of your house maintenance is a hassle, not to mention expensive. Double Bubble House Wash isn’t just about a quick clean, it’s an investment in the longevity of your home. This powerful formula protects paintwork and weatherboards from pesky pollutants that can cause premature ageing and fading. This means less frequent repainting and maintenance, saving you precious time and money. A real win-win!
Heads Up: Double Bubble is designed to tackle dirt and grime, not moss and mould which require Wet & Forget or Rapid Application.
How does Double Bubble House Wash work?
Our specialised formula utilises powerful surfactants to effortlessly dissolve dirt, grime, and other unsightly contaminants. With light agitation, these stubborn blemishes are lifted away, leaving your surfaces refreshed and revitalised.
Double Bubble goes beyond a simple clean. By slowing the accumulation of airborne pollutants, it helps extend the appearance of your home’s exterior. In fact, by preventing oxidation and other damage, our house shampoo could potentially double the lifespan of your paint. So, spending a couple of hours a year washing your house is a small price to pay for a home that looks its best for years to come.
We recommend using Double Bubble when you first notice a build-up of dirt and grime. Thanks to its effortless application and powerful formula, keeping your home looking its best is a breeze, not a chore.
Easy Hose Applicator
Our easy-to-use Reach Nozzle simplifies the cleaning process. Simply attach your hose, adjust the nozzle to the ‘water’ setting and find your desired pressure. Then switch to ‘ON’ to mix the formula with the water stream. Use the flat fan for close-up cleaning and ‘Jet’ to tackle those hard-to-reach spots up to 8 metres high. A light scrub with our extendable house brush and a final rinse with water will leave your home in tip-top shape.

Double Bubble House Wash FAQ
Window Witch: Exterior Glass Cleaner
Tired of struggling with streaks and smears? Window Witch is the revolutionary, streak-free glass cleaner that will leave your windows so clear, you'll think they've disappeared! Our powerful formula effortlessly dissolves grime, and fingerprints, leaving your windows and conservatories crystal clear and preventing water spots in future.
Say Goodbye To The Squeegee and Streaks with Our Exterior Glass Cleaner
Let’s be honest, cleaning windows is a pain! But fear not, Window Witch is here to give you windows so streak-free that you’ll think they’ve disappeared. This powerful formula tackles grime and those pesky fingerprints leaving your windows and conservatories crystal clear. Our concentrate is free of harsh chemicals and comes with a hose nozzle that makes cleaning a breeze.
How does Window Witch work its magic?
It's all thanks to a clever blend of sugar-based surfactants that dissolve grime like nobody's business! Citrate water softeners and a high-performance sheeting agent team up to ensure a streak-free, spotless finish.
Reach new heights, with our handy sprayer, you can reach up to 8 metres (two storeys high!) without needing a ladder. The easy-to-use Reach Nozzle attaches to your garden hose and offers adjustable settings for targeted cleaning. Cover up to 600m² of glass with just one 2-litre bottle!
Just connect your garden hose, turn the nozzle, and let the cleaning sorcery begin - no squeegee in sight!
Easy Hose Applicator
Our easy-to-use Reach Nozzle makes cleaning a breeze. Simply attach your hose, choose your setting, and spray! The flat fan is perfect for up-close cleaning, while the jet setting tackles those hard-to-reach spots up high. No ladders, no hassle - just effortless cleaning.
No mixing or mess, the hose nozzle automatically regulates the dilution rate for you.
Heads Up: Window Witch is not designed to remove hard water spots. If you have white residue or streaking when the windows dry, the product hasn’t been washed off properly, repeat the rinsing process.
Experience the Window Witch difference today and say goodbye to streaks and squeegees forever!
Coverage is up to 600m2
Window Witch - FAQs
FAQs and Guides
Can I Safely Use Wet & Forget Moss & Mould On ANY Exterior Surface?
Sure can! This powerful product cleans them all - from roofs to floors, bricks to pools, there’s no need to buy separate products for all these surfaces.
Great for all types of Roofs including Decramastic, Clay tile, Concrete tile, Super 6, Fibrolite, Colour steel, Zincalume (iron roof)
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How Do I Apply Wet & Forget?
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Choose a cool dry day to apply it. Make sure there’s no rain forecast for at least 5 hours after application (and be mindful of heavy dew/frosts expected overnight.)
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Mix the product 1 part Wet & Forget to 5 parts of water - in a garden sprayer. (eg 1L Wet & Forget to 5L water)
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Saturate the dry surface with the product.
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Then, just watch it come cleaner, bit by bit as Mother Nature takes over. The weathering process gently takes the decomposing material away bit by bit without scouring the surface it has infested.
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Only one application!
What Is The Dilution Rate and Coverage Area of Wet & Forget?
Mix 1 part Wet & Forget with 5 parts water. A 5L pack makes 30L of ready-to-use spray, covering 100-300m² depending on the surface. Painted surfaces need less, while porous surfaces like concrete may need more.
When Is The Best Time To Apply Wet & Forget?
On a cool, dry windless day and when no rain is expected for 4-6 hours. Often the evening is best when evaporation of the product is minimal. This will ensure that the surface to be treated stays wet with Wet & Forget for an extended period.
How Long Does Wet & Forget Take To Work?
Results depend on the severity of the growth and how much rainfall there is to wash the surface of dead growth.
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Light contamination may clear within days, while heavier growths could take 2-3 months. A temporary orange-brown discolouration on concrete is normal and indicates the product is working.
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Very heavy contamination may take 6-12 months initially. However future cleaning results will be much faster than the initial use.
Will Wet & Forget Affect My Pets?
As with any cleaning product, it’s important to keep your pet off the surfaces until the product is completely dry. This prevents them from licking the formula off their fur or paws. If they accidentally sit or walk through the product before it dries, wash their feet and fur with fresh water. As we like to say “Don’t let your moggy or doggy’s paws get soggy!”
What is the difference between Wet and Forget and Rapid Application?
Why Is Wet & Forget Better Than Other Outdoor Cleaners?
Unlike harsh chemical cleaners, Wet & Forget is a gentle, bleach-free solution that won't harm surfaces. Plus, there’s no rinsing required, saving you time and water.
Easy to use and with safer ingredients, Wet & Forget is the leading outdoor cleaner for a reason. While the first clean may take time, the results are long-lasting and worth the wait.
How Do I Know If Wet & Forget Is Working?
In some circumstances, you may see an instant reaction. For instance, treated moss often turns brown straight away. Surfaces such as concrete may turn an orange-brown colour after it has been sprayed. This temporary change is a good sign as this is a natural reaction between the growth and the Wet & Forget solution.
How Often Should I Apply Wet & Forget?
An annual spray of Wet & Forget should keep the moss, lichen, algae and mould away. However, if any new growth appears, reapply sooner and keep it at bay.
What Time Of Year Should I Apply Wet & Forget?
There is no definitive time - but of course, all these growths such as lichen, moss, mould and algae appear more in the winter months when the exterior surfaces are damp and wet which are the perfect conditions for these growths to thrive.
Ideally, apply at the first sign of green growth, to a dry surface. Tackling the problem early makes clean-up much easier! Remember, always apply to a dry surface.
Do You Need To Rinse Off Wet & Forget?
NO! Rinsing this product dilutes it, instead, simply apply it to a dry surface and leave it. Mother Nature will take care of the rest.
Is Wet & Forget A Bleach?
Absolutely not!
What Is The Shelf Life Of Wet & Forget?
Unlike bleach-based cleaners, Wet & Forget has an unlimited shelf life. Always keep the cap done up tightly and the container out of reach of children.
What’s The Difference Between Wet & Forget and Rapid Application?
They are 'sister' products. The ingredients and coverage are the same but the dilution rates are different because the way you apply them is different. Wet & Forget needs a garden sprayer while Rapid Application needs just a hose to apply.
Important: You can’t use regular Wet & Forget 5L with the 2L Rapid Application Reach Nozzle, it won’t work as the dilution rates are very different.
Coverage of 100-300m2 is the same for both products (depending on porosity and amount of contamination on the surface).
Is There Any Residual Effect With Wet & Forget?
Some of the ingredients remain active if the surface is porous. This helps prevent premature recontamination.
If I’m On Tank Water, Can I Use Wet & Forget On My Roof?
If you’re collecting rainwater from your roof, you can still use our awesome products! Just disconnect your water tank for 3-4 weeks, or until you’ve had a good 36mm of rain. This will make sure all the concentrate and decomposing debris gets washed away before it has a chance to get into your tank.
Can I Change The Specified Ratio's Of Wet & Forget?
Yes! For heavy contamination, use a stronger mix for faster results. For light recontamination on previously cleaned surfaces, a weaker mix is sufficient for effective maintenance.
Do I Have To Use The Whole Bottle Of Wet & Forget In One Go?
No, but good planning is essential. Work to a pattern so you know where you have started and stopped. The product is fine if left in the spray container as it does not deteriorate when it has been diluted. Plus, as the product is not corrosive it won’t damage your sprayer.>
Will Wet & Forget Damage My Plants?
Not unless you are directly spraying it onto the plants.If there’s a chance of overspray onto your plants or grass, water the garden before the application to create a barrier, then water again after spraying to wash away any product.
Will Wet & Forget Remove The Mould From My Timber Decks?
Absolutely! For older, heavily contaminated decks, a light scrub with a brush and warm water after a month may help remove stubborn residue. You'll only need to do this once, then future maintenance is a breeze!heck out Hit The Deck, for a more instant result (although it does involve more elbow grease!)
Will Wet & Forget Remove Moss From Lawns?
Sure will! Firstly lightly water the lawn but not enough to saturate the moss, preferably late in the day when the sun is low so that evaporation is kept to a minimum.Mix a solution of 1 part Wet & Forget to 7 parts water and spot spray the affected areas. Repeat as needed until the moss is under control. In some cases, the grass may show slight burning, but it will recover quickly. Once the moss has died, rake it out and apply lime to the area, as moss often indicates acidic soil.
How Much Wet & Forget Will I Need To Clean My Roof?
The average 3-bedroom tile roof is approx 150m2 but because of the undulations of the tile profile the actual area is a lot bigger. Therefore an average tile/concrete roof would require 2 x 5-litre packs, depending on how porous the surface is and how much biological growth is present.
For an average 3-bedroom tile roof with lichen, you would require 3 x 5-litre packs depending on the total area covered with lichen.
How Do I Remove Lichen From My Roof?
For Lichen removal: For best results mix the Wet & Forget and spot spray the lichen, leave for 10-15 minutes and then respray the lichen and the entire roof to ensure the plant absorbs the Wet & Forget thoroughly. The first application is to dissolve the waxy surface. The 2nd spray will then penetrate the lichen.
How Do I Remove Moss & Mould From My Roof?
For green moss and black mould, one application is normally sufficient.
- Mix the product 1 part Wet and Forget to 5 parts of water - in a garden sprayer. (eg 1L Wet & Forget to 5L water)
- Choose a cool dry day to apply it.
- Saturate the dry surface with the product.
- NO rain for the first 5 hours
- Then, just watch it come cleaner - bit by bit as Mother Nature takes over. The weathering process gently takes the decomposing material away bit by bit without scouring the surface it has infested.
- Only one application!