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Cleaning Product Comparison

There are numerous products available on the market to kill moss mould and lichen.

Wet & Forget is the market leader but there are several alternatives available that contain the same active ingredient in higher concentration for less cost.

Blind testing was conducted to compare products that clean moss, mould and lichen using Wet & Forget and other outdoor cleaners. This testing found no significant difference in cleaning performance and advised that consumers should choose based on the price point they wished to spend.

Blind  testing found that there was;


No discernible difference in cleaning performance among them.


Consumers should choose based on price alone

Choose the best mould remover product to suit your requirements.

Spik and Span have put together the following cleaning product comparison to help give you a good understanding of the variety of moss and mold removal productsand other household and domestic cleaners so that you can make an informed decision for the best mould remover before buying.

The market offers several cleaning products that all claim do the same or similar thing.

  • Some of these moss and mould removal products contain bleach and are not biodegradable; these can damage paint.
  • Some are harmful to plants and pets.
  • Some will cause your roof to rust or oxidize

Spik and Span and some other leading products such as Wet and Forget contain the same active ingredient which is a very strong anti bacterial chemical that is very effective for Moss Mould and Lichen Removal.

Choose Spik and Span’s Spray and Forget as our product provides best value for money based on your $64.00 investment.

Product Pack Size Dillution Rate Dilluted Total Cost to Buy Cost per Liter
Xtreme Clean Sure Thing 5L 1:5 30L $75.00 $2.50
Wet and Forget 5L 1:5 30L $99.00 $3.30
Spik and Span Spray & Forget 5L 1:10 55L $64.00 $1.16
Soak'n'croak 5L 1:16 85L $98.00 $1.15
Move-it 5L 1:5 30L $49.90 $1.16
Bio-Shield 5L 1:20 105L $99.00 $.94
30 second Spray and Walk Away 5L 1:4 25L $28.90 $1.16

Roof Treatment

"Hi Henry, Your product has quite frankly outdone anything I have previously used. Your email has prompted me to have another closer look on my roof just now and since I last applied the Moss and Lichen Slayer late May last year I can’t find any noticeable patches. That's the first time I have achieved that result in that time period. I still have another container to get through but it’s probably not enough to finish the roof again though. I should look at grabbing some more really. Regards"

Keith Forlong

Home Maintenance Company

"Just a quick note to let you know I am really pleased with your moss and mould slayer product. I have used for over 6 years and I think its the best product on the market. I dont want to have to go back to an unhappy client so I will stick with what I know gets results !! Thanks"

Pegasus Home Maintenance

Saved us time and money

"We are owners of a motel complex and we have used various products over the past 15 years. We discovered Spik and Span Moss and Mould killer about 5 years ago and we would not change to anything else.We got faster kill rates and slower regrowth.

It costs us nearly half what were paying on other brands."

Taupo, NZ

Nothing has been far more superior than Spik and Span Moss Kill

"I have used Spik and Span Moss Kill on my south side of my house as it is so damp and the moisture is just creating a moss like substance. I don't know much about it really. I used a 5 Litre pack and it cleaned it up within a week. I have used other well advertised products and nothing has been far more superior than Spik Moss Kill. I would certainly recommend it to anyone. Cheers Spik and Span NZ"

Bryan Nigel
Upper Hutt, NZ

Spik and Span is a beauty

"Spik and Span orange cleaner is a beauty. It cleans so well and a good test recently was the stinky tilt a hood filter that was full of oil and grease. Using Spik and Span at 10-1 with water, allowing it soak in and then hosing it off afterwards the oil and grease broke down easily and left the filter looking like brand new. It also left a fresh orange smell in the filter that has lasted for days now."

Auckland, NZ

Moss & Mould Killer on my Pavers

"I used Spik and Span Moss and Mould Killer on my pavers. I am most impressed. 1 week after spraying it is already showing distinct signs of working. I have also sprayed moss in my lawn. Moss has gone a yellow colour and lawn is still green. Good bye to moss and mould forever. So pleased to have found this product."

Timaru, NZ

Fantastic Result

"Just ordering some more Moss and lichen removal product and wished to tell how pleased I am with your product. I have tried nearly everything under the sun to get rid of the lichen on my driveway. We got rid of it within 4 months.We are now going to spray our roof and hope to get a similar result. Fingers crossed."

Rotorua, NZ

I used Spik and Spans Moss and Mould Killer last week

"I used Spik and Spans Moss and Mould Killer last week and sprayed it on everything from my paths to the deck and everything else in reach. Apart from the bits I missed the green gunk has gone, no rain either till tonight , just heavy frosts! I was told it may take a couple of weeks but it has gone in a few days. I am delighted to say the least and have ordered more! I also have used Spik and Span household concentrate cleaner. It cleaned everything it touched!! From the bathroom , to bench tops , my stainless jug, and rubbish bin etc. I am really impressed with Spik and Span's service that I received and would certainly recommend these products to everyone. Cheers Spik and Span."

Dunedin, NZ

Awesome for all areas

"I use Spik and Span for everything around the house. We use it on our drive and paving areas as well as around the pool area which can get slippery. We spray once a year every year and always look forward to the results. Great price and great product guys. Happy for you to use my reference."

Auckland, NZ