Waterproofing brands in New Zealand:Which are most popular?
In September 2026, Ardex was the most searched waterproofing brand in New Zealand, accounting for 29.5% of all searches among the six brands we track. When we checked with ChatGPT and Google AI Overviews, Ardex and Sika were mentioned most often, in four of the five answers. Ardex was recommended most often, coming first in all four responses that gave a list.
ArdexShare of searches 29.5%Mentioned in 4 of 5 AI answersPlace in AI recommendations 1st
MapeiShare of searches 24.2%Mentioned in 2 of 5 AI answersPlace in AI recommendations 3rd
NuraliteShare of searches 24.2%Mentioned in 2 of 5 AI answersPlace in AI recommendations 4th
BostikShare of searches 16%Mentioned in 1 of 5 AI answersPlace in AI recommendations 5th
FosrocShare of searches 5.7%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
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Top waterproofing brands in ChatGPT and Google AI Overviews
In Brandwave's three ChatGPT questions and two Google AI Overviews, Ardex and Sika were mentioned most often, in four of the five answers. Ardex was recommended most often, coming first in all four answers that gave a list. Sika was second, and Mapei was third. Fosroc, which ranked fifth in searches, was not mentioned at all.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Ardex4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Sika4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Mapei2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Nuralite2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Bostik1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Fosroc0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about waterproofing brands
5 answers
Asked ChatGPT
“Which waterproofing brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best waterproofing brands in New Zealand?”
Asked ChatGPT
“What's the best waterproofing brand in New Zealand for building and repair?”
Searched Google, AI Overview
“waterproofing nz”
Searched Google, AI Overview
“concrete waterproofing”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Which waterproofing brands do people search for most?
This chart shows how often people search Google for each waterproofing brand by name. Each line represents a brand's share of searches for all six waterproofing brands we track, month by month, from searches in New Zealand.
Share of searches by month for Ardex, Mapei, Nuralite, Bostik, Fosroc. The figures are in the table below the chart.
View monthly share of searches table
| Month | Ardex | Mapei | Nuralite | Bostik | Fosroc | Sika |
|---|---|---|---|---|---|---|
| Oct 2025 | 28% | 23% | 28% | 15.2% | 5.4% | 0.39% |
| Nov 2025 | 29.3% | 19.5% | 29.3% | 15.9% | 5.7% | 0.41% |
| Dec 2025 | 28.2% | 22.9% | 22.9% | 18.8% | 6.5% | 0.59% |
| Jan 2026 | 31.1% | 20.5% | 25.3% | 16.8% | 5.8% | 0.53% |
| Feb 2026 | 29.9% | 24.5% | 24.5% | 16.2% | 4.6% | 0.41% |
| Mar 2026 | 35.3% | 19.3% | 23.7% | 15.7% | 5.6% | 0.4% |
| Apr 2026 | 33.5% | 22.3% | 22.3% | 14.9% | 6.5% | 0.47% |
| May 2026 | 29.8% | 19.8% | 24.4% | 19.8% | 5.8% | 0.41% |
| Jun 2026 | 28.5% | 23.3% | 23.3% | 19% | 5.5% | 0.4% |
| Jul 2026 | 30.1% | 20.1% | 24.7% | 20.1% | 4.6% | 0.42% |
| Aug 2026 | 25.4% | 20.7% | 25.4% | 20.7% | 7.3% | 0.43% |
| Sep 2026 | 29.5% | 24.2% | 24.2% | 16% | 5.7% | 0.41% |
| Rank | Brand | Share of searches | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 29.5% | 720 | +22% | +4.1 points | |
| 2, moved from 4th to 2nd | 24.2% | 590 | +22.9% | +3.5 pointsmoved from 4th to 2nd | |
| 3, moved from 2nd to 3rd | 24.2% | 590 | 0% | -1.3 pointsmoved from 2nd to 3rd | |
| 4, moved from 3rd to 4th | 16% | 390 | -18.8% | -4.7 pointsmoved from 3rd to 4th | |
| 5, held 5th | 5.7% | 140 | -17.6% | -1.6 points | |
| 6, held 6th | 0.41% | 10 | 0% | 0 points |
1.
Ardex29.5%
Held 1st. 720 estimated branded searches, +22% vs prior month. Share +4.1 points.
2.
Mapei24.2%
Moved from 4th to 2nd. 590 estimated branded searches, +22.9% vs prior month. Share +3.5 points.
3.
Nuralite24.2%
Moved from 2nd to 3rd. 590 estimated branded searches, 0% vs prior month. Share -1.3 points.
4.
Bostik16%
Moved from 3rd to 4th. 390 estimated branded searches, -18.8% vs prior month. Share -4.7 points.
5.
Fosroc5.7%
Held 5th. 140 estimated branded searches, -17.6% vs prior month. Share -1.6 points.
6.
Sika0.41%
Held 6th. 10 estimated branded searches, 0% vs prior month. Share 0 points.
Which brand is most popular in search among waterproofing brands in New Zealand?
6 brands
In September 2026, Ardex was the most searched among waterproofing brands in New Zealand, with an estimated 720 branded searches, 29.5% of all searches for the six we track. Mapei is in 2nd place, 5.3 percentage points behind at 24.2%.
| Brand | Share of searches | Peak | Low | Rank |
|---|---|---|---|---|
| 28% → 29.5% | 35.3%Mar 2026 | 25.4%Aug 2026 | 1st | |
| 23% → 24.2% | 24.5%Feb 2026 | 19.3%Mar 2026 | 3rd → 2nd | |
| 28% → 24.2% | 29.3%Nov 2025 | 22.3%Apr 2026 | 2nd → 3rd | |
| 15.2% → 16% | 20.7%Aug 2026 | 14.9%Apr 2026 | 4th | |
| 5.4% → 5.7% | 7.3%Aug 2026 | 4.6%Feb 2026 | 5th | |
| 0.39% → 0.41% | 0.59%Dec 2025 | 0.39%Oct 2025 | 6th |
Each finding as a sentence
- Across the 12 months ending September 2026, Ardex’s share of searches among waterproofing brands in New Zealand increased from 28% to 29.5%.
- Across the 12 months ending September 2026, Mapei’s share of searches among waterproofing brands in New Zealand increased from 23% to 24.2%.
- Across the 12 months ending September 2026, Nuralite’s share of searches among waterproofing brands in New Zealand decreased from 28% to 24.2%.
- Across the 12 months ending September 2026, Bostik’s share of searches among waterproofing brands in New Zealand increased from 15.2% to 16%.
- Across the 12 months ending September 2026, Ardex’s share of searches among waterproofing brands in New Zealand peaked at 35.3% in March 2026 and was lowest at 25.4% in August 2026.
- Across the 12 months ending September 2026, Mapei’s share of searches among waterproofing brands in New Zealand peaked at 24.5% in February 2026 and was lowest at 19.3% in March 2026.
- Across the 12 months ending September 2026, Nuralite’s share of searches among waterproofing brands in New Zealand peaked at 29.3% in November 2025 and was lowest at 22.3% in April 2026.
- Across the 12 months ending September 2026, Bostik’s share of searches among waterproofing brands in New Zealand peaked at 20.7% in August 2026 and was lowest at 14.9% in April 2026.
- Across the 12 months ending September 2026, Fosroc’s share of searches among waterproofing brands in New Zealand peaked at 7.3% in August 2026 and was lowest at 4.6% in February 2026.
- Across the 12 months ending September 2026, Mapei rose from 3rd to 2nd among waterproofing brands in New Zealand.
- Across the 12 months ending September 2026, Nuralite fell from 2nd to 3rd among waterproofing brands in New Zealand.
- Across the 12 months ending September 2026, Fosroc and Sika held steady: their share of searches among waterproofing brands in New Zealand each moved less than 0.5 percentage points.
How did search popularity change for New Zealand waterproofing brands in September 2026?
5 changes

In September 2026, Mapei overtook Nuralite and Bostik to rank 2nd among waterproofing brands in New Zealand, with 24.2% of the searches.

In September 2026, Ardex gained share of searches among waterproofing brands in New Zealand, from 25.4% to 29.5%.

In September 2026, Bostik lost share of searches among waterproofing brands in New Zealand, from 20.7% to 16%.

In September 2026, Fosroc lost share of searches among waterproofing brands in New Zealand, from 7.3% to 5.7%.

In September 2026, Nuralite lost share of searches among waterproofing brands in New Zealand, from 25.4% to 24.2%.
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