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“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

vimeo Load video:

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

vimeo Load video:

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce

“After removal of 41 years worth of accumulated lichen, it is like having a new roof. I'll be recommending your product to several friends who have similar problems on their roof.” - Bruce
Wet & Forget Concentrate - Exterior Moss & Mould Remover

Wet & Forget Concentrate - Exterior Moss & Mould Remover

Wet & Forget Concentrate - Exterior Moss & Mould Remover

$49.00
$49.00
Tax included. Shipping calculated at checkout.

In stock

Tired of watching your paths, roof, and driveway disappear under a layer of slippery green moss and stubborn black mould? You shouldn't have to spend your weekend behind a high-pressure hose, risking damage to your surfaces and your back.

Format: 2L
  • Ships within 24 hours
  • NZ Made, Aussie loved.

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Our Legendary "Set & Forget" Solution

The Ultimate Long-Term Moss, Mould & Lichen Treatment

Wet & Forget: Moss & Algae Remover is the ultimate outdoor cleaning hack for everyday heroes who want maximum results with minimum effort. Whether you are rejuvenating your roof and decks or restoring your pavers and garden paths, our legendary formula delivers a deep clean without the risk of surface damage.

Unlike harsh acidic cleaners that can etch or degrade building materials, our pH-8 formula is neutral and safe for almost any exterior surface. One application doesn't just clean; it creates a protective environment that keeps new growth at bay for up to a year, saving you from the cycle of constant maintenance. With no scrubbing required, the elements do the heavy lifting for you.

No harsh chemicals. No worries.

Tough on grime but kind to your surfaces.

Bleach-Free

Bleach-Free

Powerful cleaning without the harsh fumes or damage to surfaces.

Biodegradable

Biodegradable

Formulated to break down naturally, keeping your surfaces and garden safe.

Innovative Reach Nozzle

Innovative Reach Nozzle

The innovative reach nozzle allows you to apply the formula up to 8 metres high, meaning you can treat those tricky nooks & crannies without ever reaching for a ladder.

How to use Wet & Forget: Moss & Algae Remover For The Best Results

Protect Your Plants

Thoroughly water any plants or gardens near the area you are treating before application to create a protective barrier.

2. Mix Your Solution

Mix 1 part Wet & Forget: Moss & Algae Remover with 5 parts water in a garden sprayer (e.g., 1L product to 5L water).

Saturate The Area

Saturate the dry surface with the solution until it is thoroughly wet. Sometimes, lichen is tough and can require a two-step attack. Once the formula is applied, wait 15-20 minutes for it to penetrate, and then treat the area again.

Let The Elements Do The Scrubbing

Once you have finished, simply leave it! The wind and rain will work with the formula to clean the surface over time. Don't forget to give your plants one last watering to rinse off any overspray!

A Helpful Tip From Our Experts

  • For surfaces heavily affected, return 15 minutes after your first application and coat the area again while it is still wet. This "double-soak" ensures the product penetrates the tough outer shell of the lichen to reach the living biology underneath.
Marolex Industry 7L - Pump Sprayer

Marolex Industry 7L - Pump Sprayer

Precautions

  • If you are likely to get overspray onto plants or grass, water the garden before application to create a barrier, and rinse plants down afterwards

Frequently Asked Questions About Wet & Forget: Moss & Algae Remover

How long does it take to see results on my roof?

Depending on the level of growth and local weather, results can take time. Green algae usually disappears within days, while black mould can take 2-4 months. For heavy lichen, it may take 6-12 months as the rain slowly weathers away the dead organic matter.