Compare Outdoor Window Cleaners in New Zealand at Canstar Blue. 30 Seconds, Simple Green and Wet & Forget were compared on Overall Satisfaction, Effectiveness, Ease of Use, Packaging and Value for Money.
See our Ratings Methodology.
Kiwis rate 30 Seconds the No.1 brand for keeping their windows crystal clear.
Our review compares outdoor window cleaners on customer satisfaction, so you can discover what other Kiwis think about our compared outdoor window cleaner brands before you go ahead and make a purchase. Think of it like asking hundreds of your closest friends and family which outdoor window cleaner brand they think is best!
Canstar Blue surveyed 274 Kiwis who had purchased and used an outdoor window cleaner in the last 12 months and asked for their feedback on the brand they bought.
Respondents rate their satisfaction with their outdoor window cleaner brands from zero to ten, where zero is extremely dissatisfied and ten is extremely satisfied. Brand satisfaction was rated by respondents on the following criteria:
The winning brand is the one that receives the highest Overall Satisfaction rating once all the scores from the Overall Satisfaction criteria are combined and averaged.
Brands must have received at least 30 responses to be included, so not all brands available in the market have been compared in this survey. The brands rated in this survey are listed below in order of best overall satisfaction.
Find more information on our Most Satisfied Customer methodology.
30 SecondsA previous winner of Canstar Blue’s Outdoor Glass Cleaner Award, once again 30 Seconds excels in our award ratings, securing a near-perfect set of scores from its Kiwi customers.
30 Seconds is the only glass cleaner to achieve a 5-Star Overall Satisfaction rating, a score it achieves in every category except Packaging, for which the brand earns 4 Stars.
Editor’s Notes30 Seconds Window Wonder Outdoor Glass Cleaner not only removes dust, grease and grime from glass, it’s also suitable for other hard non-porous surfaces, such as stainless steel and chrome.
Key features include:
Simple GreenSecond on our awards table, Simple Green earns its top ratings, 5 Stars, for Ease of Use and Value for Money. The eco-cleaning brand’s lowest score is for its packaging, 3 Stars – but while not a top rating, 3 Stars is by no means an indication of dissatisfaction. Rather it reveals Simple Green’s customer are happy with the packaging of their window cleaning products.
Simple Green has one outdoor window cleaner in its range: Hi-reach Exterior Window Cleaner, which promises a streak-free finish.
The hose-spray dispenser is powerful enough to reach second-storey windows and the formula is non-toxic.
Wet & ForgetThe winner of Cantar Blue’s 2025 Outdoor Surface Cleaners Award, Wet & Forget also rates highly in our Outdoor Window Cleaners Award.
The iconic Kiwi brand earns top 5-Star ratings for Effectiveness and Packaging, plus great 4-Star ratings from its customers for Overall Satisfaction, Ease of Use and Value for Money.
Editor’s NotesWet & Forget’s Window Witch hose-spray dispenser provides an eight-metre reach.
The product’s cleaning ingredients dissolves grease and grime, while water softeners and a sheeting agent work to ensure a streak-free finish.
The product is available in a 2l spray dispenser, which provides coverage for up to 600m² of glass, as well as 2l refill packs.
It’s as clear as sparkling windows that, when it comes to rating window cleaning products, one quality is paramount: their effectiveness.
In our survey, 38% of respondents base their satisfaction with their choice of window cleaning product on how effectively it cleans.
Ease of Use is also an important factor, as spray applicators need to be easy to control and powerful enough to reach second-storey windows.
And as always, Value for Money is important, too – cited by nearly a quarter of those in our awards survey.
Here’s the full rundown of what Kiwi consumers say are the main things they consider when rating their outdoor window cleaners:
About the author of this pageBruce Pitchers is Canstar NZ’s Content Manager. An experienced finance reporter, he has three decades’ experience as a journalist and has worked for major media companies in Australia, the UK and NZ, including ACP, Are Media, Bauer Media Group, Fairfax, Pacific Magazines, News Corp and TVNZ. As a freelancer, he has worked for The Australian Financial Review, the NZ Financial Markets Authority and major banks and investment companies on both sides of the Tasman.
In his role at Canstar, he has been a regular commentator in the NZ media, including on the Driven, Stuff and One Roof websites, the NZ Herald, Radio NZ, and Newstalk ZB.
Away from Canstar, Bruce creates puzzles for magazines and newspapers, including Woman’s Day and New Idea. He is also the co-author of the murder-mystery puzzle book 5 Minute Murder.
Considerations when purchasing an outdoor window cleaner:
Choose products that are environmentally friendlier: 34%
Loyal to one brand of cleaner: 32%
Willing to pay more for a cleaner that comes with a better applicator: 28%
Canstar Blue surveyed 2503 New Zealand consumers across a range of categories to measure and track customer satisfaction, via ISO 26362 accredited research panels managed by Qualtrics. The outcomes reported are the results from respondents who had purchased and used an outdoor window cleaner in the past 12 months. In this case, 274 New Zealanders.
Brands must have received at least 30 responses to be included. Results are comparative and it should be noted that brands receiving three stars have still achieved a satisfaction measure of at least six out of 10. Not all brands available in the market have been compared in this survey. The ratings table is first sorted by star ratings and then by mean overall satisfaction. A rated brand may receive a ‘N/A’ (Not Applicable) rating if it does not receive the minimum number of responses for that criterion.
The past winners from Canstar Blue’s Outdoor Window Cleaner ratings:
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