--- title: "Vaillant vs Worcester Bosch: Which is searched more in the United Kingdom?" description: "Is Vaillant or Worcester Bosch more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Boiler brands set in the United Kingdom. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/uk/compare/vaillant-vs-worcester-bosch" publisher: "Brandwave" --- # Vaillant vs Worcester Bosch: Which is searched more in the United Kingdom? Is Vaillant or Worcester Bosch more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Boiler brands set in the United Kingdom. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Vaillant and Worcester Bosch - **Competitive set**: Boiler brands - **Market**: United Kingdom - **Month measured**: Sep 2026 - **Vaillant Share of Search**: 22.1% - **Worcester Bosch Share of Search**: 33% ## Is Vaillant or Worcester Bosch more popular in search? - In September 2026, Worcester Bosch had more branded searches than Vaillant among boiler brands in the United Kingdom. Worcester Bosch had about 14,800 branded searches, while Vaillant had 9,900. Worcester Bosch made up 33% of all boiler brand searches we track, and Vaillant accounted for 22.1%. - Worcester Bosch was ahead of Vaillant in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Vaillant’s share of searches among boiler brands in the United Kingdom moved from 20.4% to 22.1%, and its estimated monthly branded searches moved from 14.8K to 9.9K. - Across the 12 months ending September 2026, Worcester Bosch’s share of searches among boiler brands in the United Kingdom moved from 30.5% to 33%, and its estimated monthly branded searches moved from 22.2K to 14.8K. ## Top boiler brands in ChatGPT and Google AI Overviews In three ChatGPT questions and one Google AI Overview, both Vaillant and Worcester Bosch showed up in all four answers. Worcester Bosch was listed before Vaillant in every answer. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Worcester Bosch | 1st | 3 of 3 | 1 of 1 | 4 of 4 | | Vaillant | 2nd | 3 of 3 | 1 of 1 | 4 of 4 | | Viessmann | 3rd | 3 of 3 | 0 of 1 | 3 of 4 | | Ideal | 4th | 3 of 3 | 0 of 1 | 3 of 4 | | Baxi | 5th | 1 of 3 | 0 of 1 | 1 of 4 | ## Every AI answer about boiler brands - Asked ChatGPT "Which boiler brand should I get in the UK?": 1. Worcester Bosch, 2. Vaillant, 3. Viessmann, 4. Ideal - Asked ChatGPT "What are the best boiler brands in the UK?": 1. Worcester Bosch, 2. Vaillant, 3. Viessmann, 4. Ideal, 5. Baxi - Asked ChatGPT "What's the most reliable combi boiler brand in the UK?": 1. Worcester Bosch, 2. Vaillant, 3. Viessmann, 4. Ideal - Searched Google, AI Overview "new boiler": 1. Worcester Bosch, 2. Vaillant Brands are listed in the order each answer named them. The answers were collected in United Kingdom on October 22, 2026. ## How did search popularity change for United Kingdom boiler brands in September 2026? - Worcester Bosch’s share of searches among boiler brands in the United Kingdom has lost ground for 3 months in a row, from 36.3% to 33% in September 2026. - Estimated monthly branded searches for Vaillant in the United Kingdom fell 33.1% over 12 measured months, from 14.8K to 9.9K in September 2026. ## Month by month | Month | Vaillant estimated searches | Vaillant Share of Search | Vaillant rank | Worcester Bosch estimated searches | Worcester Bosch Share of Search | Worcester Bosch rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 14.8K | 20.4% | 3 | 22.2K | 30.5% | 2 | | Nov 2025 | 14.8K | 20.8% | 3 | 22.2K | 31.2% | 2 | | Dec 2025 | 9.9K | 17.7% | 3 | 18.1K | 32.4% | 2 | | Jan 2026 | 14.8K | 19.4% | 3 | 22.2K | 29.2% | 2 | | Feb 2026 | 9.9K | 17.7% | 3 | 18.1K | 32.4% | 2 | | Mar 2026 | 9.9K | 17.7% | 3 | 18.1K | 32.4% | 2 | | Apr 2026 | 8.1K | 18.8% | 3 | 14.8K | 34.4% | 1 | | May 2026 | 8.1K | 21.3% | 3 | 12.1K | 31.8% | 1 | | Jun 2026 | 8.1K | 19.9% | 3 | 14.8K | 36.3% | 1 | | Jul 2026 | 6.6K | 19.6% | 3 | 12.1K | 36% | 1 | | Aug 2026 | 8.1K | 22.1% | 3 | 12.1K | 33.1% | 1 | | Sep 2026 | 9.9K | 22.1% | 3 | 14.8K | 33% | 1 | ## How each brand is measured Brandwave collects information about searches that people make online using Vaillant’s and Worcester Bosch’s 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. - **Vaillant**: Measured on the search term “vaillant”. - **Worcester Bosch**: Measured on the search term “worcester bosch”. - [Vaillant profile](/demand/uk/brands/vaillant) - [Worcester Bosch profile](/demand/uk/brands/worcester-bosch) - [All boiler brands in the United Kingdom](/demand/uk/categories/uk-boiler-brands): The set both shares are measured inside, 5 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Vaillant or Worcester Bosch more popular in search? In September 2026, Worcester Bosch had more branded searches than Vaillant among boiler brands in the United Kingdom. Worcester Bosch had about 14,800 branded searches, while Vaillant had 9,900. Worcester Bosch made up 33% of all boiler brand searches we track, and Vaillant accounted for 22.1%. ## Cite this page Brandwave. "Vaillant vs Worcester Bosch: Which is searched more in the United Kingdom?". https://gobrandwave.com/demand/uk/compare/vaillant-vs-worcester-bosch This page is also available as HTML at https://gobrandwave.com/demand/uk/compare/vaillant-vs-worcester-bosch. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.