Altherm vs First Windows:Which is more popular in New Zealand?
In October 2026, Altherm had more branded searches than First Windows among window and door companies in New Zealand. Altherm had about 710 branded searches, while First Windows had 410. Altherm made up 19% of all window and door company searches we track, and First Windows accounted for 11%. When we asked ChatGPT and Google AI Overviews about window and door companies, Altherm appeared in three of the five answers and First Windows in two. First Windows was mentioned before Altherm in two out of three answers.
Who do people search for more?
Altherm, about 73% more searches than First Windows
Who does AI mention more?
Altherm, mentioned in 3 of 5 answers, First Windows in 2
Who does AI recommend more?
First Windows, named ahead of Altherm in 2 of 3 answers
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Top window and door companies in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Altherm was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. First Windows was mentioned in two out of five: not in any of the three ChatGPT answers, but in both Google AI Overviews. First Windows was listed before Altherm in two out of three answers.
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.
- Altherm3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Vantage Windows & Doors3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Nulook2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers- First Windows2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Rylock1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
APL Window Solutions1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Nebulite0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about window and door companies
5 answers
Asked ChatGPT
“Which window and door company should I hire in New Zealand?”
Asked ChatGPT
“What are the best window and door companies in New Zealand?”
Asked ChatGPT
“What's the best window and door company in New Zealand for a new build home?”
Searched Google, AI Overview
“aluminium windows nz”
Searched Google, AI Overview
“new windows nz”
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.
Is Altherm or First Windows more popular in search?
This chart shows how often people search Google for Altherm and First Windows by name. Each line represents a brand's share of searches for all seven window and door companies we track, month by month, from searches in New Zealand.
Share of searches by month for Altherm, First Windows. The figures are in the table below the chart.
View monthly share of searches table
| Month | Nulook | Rylock | Altherm | APL Window Solutions | First Windows | Vantage Windows & Doors | Nebulite |
|---|---|---|---|---|---|---|---|
| Nov 2025 | 25.1% | 20.6% | 21.8% | 15.2% | 10.1% | 4% | 3.3% |
| Dec 2025 | 24.6% | 18.3% | 19.9% | 15.3% | 15.9% | 3.7% | 2.3% |
| Jan 2026 | 23.4% | 18.9% | 23% | 13.4% | 14.1% | 4.1% | 3.1% |
| Feb 2026 | 23.1% | 20.3% | 21.5% | 16.3% | 11.8% | 4% | 3.1% |
| Mar 2026 | 23.2% | 20.4% | 20.2% | 16.5% | 12.8% | 4.6% | 2.4% |
| Apr 2026 | 25.4% | 22.3% | 16.6% | 17.3% | 10.2% | 5% | 3.1% |
| May 2026 | 23.1% | 16.7% | 21.2% | 18.8% | 11.8% | 4.9% | 3.5% |
| Jun 2026 | 22.8% | 17% | 20.7% | 19.8% | 12.4% | 4% | 3.3% |
| Jul 2026 | 24.6% | 17.6% | 20.6% | 16.3% | 12.6% | 5.3% | 3% |
| Aug 2026 | 23.1% | 20.2% | 21.4% | 15.3% | 12.5% | 4% | 3.5% |
| Sep 2026 | 25.7% | 18.4% | 20.7% | 17.1% | 11.3% | 3.7% | 3.1% |
| Oct 2026 | 23.3% | 22% | 19% | 17.4% | 11% | 3.8% | 3.5% |
How has branded search for Altherm and First Windows changed in New Zealand over the last 12 months?
3 findings
- Altherm was ahead of First Windows in every measured month of the 12 months ending October 2026.
- Across the 12 months ending October 2026, Altherm’s share of searches among window and door companies in New Zealand moved from 21.8% to 19%, and its estimated monthly branded searches moved from 930 to 710.
- Across the 12 months ending October 2026, First Windows’ share of searches among window and door companies in New Zealand moved from 10.1% to 11%, and its estimated monthly branded searches moved from 430 to 410.
How did search popularity change for New Zealand window and door companies in October 2026?
3 changes
In October 2026, Rylock overtook Altherm to rank 2nd among window and door companies in New Zealand, with 22% of the searches.
In October 2026, Altherm lost share of searches among window and door companies in New Zealand, from 20.7% to 19%.
First Windows’ share of searches among window and door companies in New Zealand has lost ground for 3 months in a row, from 12.6% to 11% in October 2026.
How are Altherm’s and First Windows’ branded searches counted?
9 search terms
Brandwave collects information about searches that people make online using Altherm’s and First Windows’ names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Altherm
7 branded search terms
- altherm
- altherm aluminium
- altherm doors
- altherm double glazing
- altherm joinery
- altherm west
- altherm windows
First Windows
2 branded search terms
- first windows
- first windows and doors
Other head-to-heads among window and door companies
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