Brandwave

How popular isAltherm?

In October 2026, people searched for Altherm by name about 710 times in New Zealand, a 23.7% decrease from the previous year. These searches made up 19% of all New Zealand window and door company searches, placing Altherm third out of seven companies. When we asked both ChatGPT and Google AI Overviews about window and door companies, Altherm appeared in three of the five answers and was the third most recommended of the seven.

Search and AI answers in October 2026

Altherm is the third most searched of 7 competitors and the third most recommended in the AI answers we collected.

  1. NulookShare of searches 23.3%Mentioned in 2 of 5 AI answersPlace in AI recommendations 4th
  2. RylockShare of searches 22%Mentioned in 1 of 5 AI answersPlace in AI recommendations 6th
  3. AlthermShare of searches 19%Mentioned in 3 of 5 AI answersPlace in AI recommendations 3rd
  4. APL Window SolutionsShare of searches 17.4%Mentioned in 1 of 5 AI answersPlace in AI recommendations 5th
  5. First WindowsShare of searches 11%Mentioned in 2 of 5 AI answersPlace in AI recommendations 1st

+2 more

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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. Altherm is the third most recommended of the seven.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. First Windows1st
  2. Vantage Windows & Doors2nd
  3. Altherm3rd
  4. Nulook4th
  5. APL Window Solutions5th
  6. Rylock6th
  7. Nebulite–

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

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.

How often do people search for Altherm compared with other New Zealand window and door companies?

Altherm against window and door companies in New Zealand, by month

Share of searches by month for Nulook, Rylock, Altherm, APL Window Solutions, First Windows, Vantage Windows & Doors, Nebulite. The figures are in the table below the chart.

View monthly share of searches table
MonthNulookRylockAlthermAPL Window SolutionsFirst WindowsVantage Windows & DoorsNebulite
Nov 202525.1%20.6%21.8%15.2%10.1%4%3.3%
Dec 202524.6%18.3%19.9%15.3%15.9%3.7%2.3%
Jan 202623.4%18.9%23%13.4%14.1%4.1%3.1%
Feb 202623.1%20.3%21.5%16.3%11.8%4%3.1%
Mar 202623.2%20.4%20.2%16.5%12.8%4.6%2.4%
Apr 202625.4%22.3%16.6%17.3%10.2%5%3.1%
May 202623.1%16.7%21.2%18.8%11.8%4.9%3.5%
Jun 202622.8%17%20.7%19.8%12.4%4%3.3%
Jul 202624.6%17.6%20.6%16.3%12.6%5.3%3%
Aug 202623.1%20.2%21.4%15.3%12.5%4%3.5%
Sep 202625.7%18.4%20.7%17.1%11.3%3.7%3.1%
Oct 202623.3%22%19%17.4%11%3.8%3.5%
  1. 1.Nulook

    23.3%

    Held 1st. 870 estimated branded searches, -11.2% vs prior month. Share -2.4 points.

  2. 2.Rylock

    22%

    Moved from 3rd to 2nd. 820 estimated branded searches, +17.1% vs prior month. Share +3.6 points.

  3. 3.Altherm

    19%

    Moved from 2nd to 3rd. 710 estimated branded searches, -10.1% vs prior month. Share -1.7 points.

  4. Held 4th. 650 estimated branded searches, 0% vs prior month. Share +0.4 points.

  5. Held 5th. 410 estimated branded searches, -4.7% vs prior month. Share -0.3 points.

  6. Held 6th. 140 estimated branded searches, 0% vs prior month. Share +0.1 points.

  7. 7.Nebulite

    3.5%

    Held 7th. 130 estimated branded searches, +8.3% vs prior month. Share +0.3 points.

Compare popularity between Altherm and its closest rivals

Every comparison with Altherm

6 comparisons

How has branded search demand for Altherm changed in New Zealand over the last 12 months?

4 findings
  • Across the 12 months ending October 2026, estimated monthly branded searches for Altherm in New Zealand fell from 930 to 710.
  • Across the 12 months ending October 2026, Altherm’s share of searches among window and door companies in New Zealand decreased from 21.8% to 19%.
  • Across the 12 months ending October 2026, Altherm’s share of searches among window and door companies in New Zealand peaked at 23% in January 2026 and was lowest at 16.6% in April 2026.
  • Across the 12 months ending October 2026, Altherm fell from 2nd to 3rd among window and door companies in New Zealand.

How did search popularity change for New Zealand window and door companies in October 2026?

5 changes
  1. In October 2026, Rylock overtook Altherm to rank 2nd among window and door companies in New Zealand, with 22% of the searches.

  2. In October 2026, Nulook lost share of searches among window and door companies in New Zealand, from 25.7% to 23.3%.

  3. In October 2026, Altherm lost share of searches among window and door companies in New Zealand, from 20.7% to 19%.

  4. 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.

  5. Estimated monthly branded searches for Vantage Windows & Doors in New Zealand fell 17.6% over 12 measured months, from 170 to 140 in October 2026.

How are Altherm’s branded searches counted?

7 search terms

Brandwave collects information about searches that people make online using Altherm’s name. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • altherm
  • altherm aluminium
  • altherm doors
  • altherm double glazing
  • altherm joinery
  • altherm west
  • altherm windows

Do you work for Altherm? To request corrections or removal please contact us via our support page and we will be happy to assist.

How the Brand Demand Index is measured

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Is Altherm your brand?

Put your own campaigns, spend and outcomes next to this demand line, so you can see which of your marketing lined up with the movements above.