Skip to content

Ethical brand ratings and accreditation since 2001

Back to table
Good shopping guide ethical accreditation tick


Is Glow-Worm an ethical and sustainable boiler brand? 

Glow-Worm is a brand that is owned by Vaillant GmbH, a German company that manufactures a variety of products, including boilers.

Within The Good Shopping Guide’s Ethical Boilers sector, Glow-Worm has an excellent score and receives a top rating.

Because Glow-Worm already has a top score on our Boilers Ethical Ratings Table, it is eligible for Ethical Accreditation.  All Glow-Worm needs to do is contact us and apply. After we receive its application, The Good Shopping Guide will provide Glow-Worm with the use of our ethical logo.

Are you interested in finding out how Glow-Worm compares to other brands within the Ethical Boilers sector? Visit The Good Shopping Guide’s Boilers Ethical Ratings Table.  From our Ratings Table, you can gain further insight into the criteria that our top-rated brands have fulfilled in order to meet our minimum ethical benchmark.

All brands are encouraged by The Good Shopping Guide to take inspiration from our top-rated brands like Glow-Worm and introduce more ethical and sustainable practices.

What makes Glow-Worm such an ethical and sustainable brand?

As a brand with an excellent score, Glow-Worm receives a top rating in all of our categories. These include Political Donations, Human Rights and Animal Welfare due to a lack of negative records.

However, we are particularly impressed with its top score for our Environmental Report category.

Vaillant GmbH, Glow Worm’s parent company has a Sustainability page on its website. The page states that the company has been ‘climate neutral since 2020’ and contains the target of reducing emissions further by 2030.

What can Glow-Worm do to improve its score? 

Glow-Worm’s above benchmark score within The Good Shopping Guide’s Ethical Boilers sector is the outcome of an evaluation of a variety of ethical criteria.

Because Glow-Worm already reaches The Good Shopping Guide’s minimum ethical benchmark in the Ethical Boilers sector, we encourage it to contact us and apply for Ethical Accreditation. By getting in touch and applying, Glow-Worm will be offered the use of The Good Shopping Guide ethical mark.

Were you aware that your brand could benefit from Ethical Accreditation? Brands accredited by The Good Shopping Guide can display our ethical mark, showcasing to consumers that it is an ethical and sustainable brand.

If you’re interested in learning more about how to attain Ethical Accreditation, please get in touch with us or complete a Free Initial Assessment form.

Ethical performance in category


GSG score


GSG category benchmark


Ethical Rating


  • Environmental Report


  • Nuclear Power


  • Fossil Fuels



  • Animal Welfare



  • Armaments


  • Political Donations


  • Human Rights



  • Ethical Accreditation


  • Other Criticisms


= GSG Top Rating = GSG Middle Rating = GSG Bottom Rating