About Demon International

Founded in 1964 and originally selling equipment to the construction industry, Demon have diversified and evolved to suit their customers needs in an ever changing market place. From selling contractors equipment to manufacturing the Demon range of pressure washers has taken nearly 40 eventful years.

With many years of research and development we sincerely believe that the latest Demon range is the UK market leader for safety, quality and reliability.

Demon are the only UK manufacturer to offer a full range of in-house manufactured pressure washers and are therefore able to guarantee a consistent level of high quality products, independently audited to the BSI ISO 9001:2015 standards.

From humble beginnings in a converted stable, Demon can now boast a purpose built modern factory of 10,000 square feet with assembly shop and separate factory building for fabrication and welding operations.

Demon are proud to be leading the way in revolutionary high pressure cleaning equipment from the Hurricane Combi flat surface cleaner to the specialist saltwater marine machines.

Company Registered in England No. 820498


Quality AssuranceClick here to view our QA Certificate.

Intellectual Property Rights – Electron Design
Click here to view.


Intellectual Property Rights – Combi DesignClick here to view.


International Registration Certification – Combi DesignClick here to view.


Terms & ConditionsClick here to view our Terms & Conditions.


Website Privacy PolicyClick here to view our website privacy policy


Customer Satisfaction SurveyClick here for our customer satisfaction survey.