New Zealand’s Best Outdoor Surface Cleaners

Which brand is the nation’s favourite when it comes to washing down decks, driveways, and all things outdoors? According to Canstar’s latest survey, it’s 30 Seconds, winner of our Most Satisfied Customers | Outdoor Surface Cleaners Award.

Dirty driveways, mossy pavers, cobwebs on weatherboards – there’s always a multitude of cleaning jobs that need to be done around the home that can all too quickly swallow up weekends.

But if you’ve a list of cleaning chores and are pressed for time, a great outdoor surface cleaner can help speed through the work. Choosing a cleaner that is effective, easy to use, and long-lasting can help make tough jobs easy. So to help find the best of the best, we asked Kiwi consumers to tell us their favourite brands of outdoor surface cleaners.

30 Seconds: New Zealand’s favourite Outdoor Surface Cleaner

For our inaugural award, to find out which brand is the nation’s favourite, we surveyed 699 people who had purchased and used an outdoor cleaning product in the past 12 months. We asked them to evaluate the products across the following categories:

  • Overall Satisfaction
  • Effectiveness
  • Value for Money
  • Environmental Friendliness
  • Ease of Use
  • Packaging

And according to Kiwis, 30 Seconds is the way to go, as this year’s Most Satisfied Customers | Outdoor Surface Cleaners Award winner.

30 Seconds has been helping Kiwis clean for over 25 years. Nestled in Matamata, 30 Seconds produces a wide array of helpful and effective cleaning solutions.

Of the three brands measured in this year’s award, 30 Seconds is the only one to earn our coveted 5-Star rating for Overall Satisfaction. It also earns another 5-Star rating for Value for Money, as well as 4 Stars across Effectiveness, Ease of Use, and Packaging. It earns a 3-Star rating for Environmental Friendliness.

New Zealand’s favourite outdoor surface cleaners

Below is an overview of the brands rated in this year’s survey, alongside some of their most popular outdoor surface cleaners:

Inside and out, and even on top of the roof, the 30 Second range has a product to meet every cleaning job around the home. However, it’s 30 Seconds’ two outside cleaning products that earned it our inaugural Outdoor Surface Cleaners Award:

30 Seconds: Spray & Walk Away

The name says it all. All you do is apply and leave, to allow the product to work over time. The easy application spray dispenser and ready-mixed product means all you have to do is attach a hose and point it at your build-up of lichen, moss, mould or algae on paths, roofs, brickwork and other hard surfaces.


  • Fan spray for wide coverage
  • Second-storey reach
  • No hosing or scrubbing required
  • Phosphate and bleach free
  • Safe around the garden
  • Ready-to-use formula available in 1l and 5l
  • Concentrated formula available in 2l, 5l and 20l


30 Seconds: Outdoor Cleaner New Generation

If you don’t want to spray and leave and, instead, want instant results, 30 Seconds’ Outdoor Cleaner New Generation is the product for you. It’s the ideal product to make your black, green and slimy surfaces look like new. It also helps minimise re-growth.


  • Works quickly
  • Suitable for wood, paint, concrete, brickwork, paving, terracotta, cloth and plastics
  • Ideal as a preparation for paint, varnish and stain
  • Ready-to-use formula available in 1l and 5l with motorised power sprayer
  • Concentrate formula available in 2l, 5l and 20l

So if you’ve a dirty job planned, look no further than 30 Seconds’ outdoor cleaning products. Whether you want speedy results, or to take a more relaxed approach, there’s a product to help you spruce up your great outdoors.

And by using the winner of Canstar Blue’s award for Most Satisfied Customers | Outdoor Surface Cleaners, you can be assured that a job well done with a 30 Seconds product will be a job that comes with satisfaction guaranteed.

Wet & Forget is an iconic brand in New Zealand. Its range of cleaning products encompasses the whole home, from laundry to garden. In this year’s award, Wet and Forget scores an excellent 4-Star rating for Overall Satisfaction thanks to 5-Star results for Effectiveness, Ease of Use, and Packaging. It earns 4 Stars for Environmental Friendliness and 3 Stars for Value for Money.

Rapid Application Moss and Mould Remover

Wet & Forget has taken its original Moss, Mould & Lichen Remover, and put it into a quick and easy hose application bottle. It’s non-caustic, non-acidic and contains no bleach, and has a huge 8m range. It can be used on just about any outdoor surface, including patios, paths, driveways, sheds, glasshouses, your home, and more.

Hit the Deck

Designed for old and weathered decks, Hit the Deck is great for cleaning dirty or blackened decks and other timber surfaces. Mix the powder with water, spray it on and Hit the Deck will start to lift UV degraded wood fibre and any contamination, mould, mildew and organic matter with it. Scrub it off with a brush to reveal a new-look timber surface below.



Simple Green is an international company with a focus on environmentally friendly cleaning products. In this year’s survey, Simple Green earns excellent 4-Star results for both Value for Money and Environmental Friendliness. It earns 3 Stars in all other categories measured.

Outdoor Cleaner

Readily biodegradable and non-flammable, Simple Green Outdoor Cleaner concentrate is a great way of dealing with large areas of mould and moss. Simple Green Outdoor Cleaner leaves a mild residue that will eliminate the fast re-growth of moss and mould. Simple Green Outdoor Cleaner penetrates surfaces and loosens the dirt biologicals are growing in. Either wash and scrub away the residue, or leave it to wash away in the rain. Also available in a ready-to-use spray bottle. Free of bleach, acid, and septic tank safe.

Deck and Fence Cleaner

Eliminates stains from any washable exterior surfaces caused by mould and mildew, lichens, algae, mosses, fungi, dirt or soot. It’s non-toxic, septic tank safe and won’t harm plants.




For the full results of our Outdoor Surface Cleaners Award click here!

author andrew broadley

About the author of this page

This report was written by Canstar Content Producer, Andrew Broadley. Andrew is an experienced writer with a wide range of industry experience. Starting out, he cut his teeth working as a writer for print and online magazines, and he has worked in both journalism and editorial roles. His content has covered lifestyle and culture, marketing and, more recently, finance for Canstar.

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