At Methven, we’re confident that our products are second to none. Thousands of hours of research and development and rigorous testing has been completed before we launch any new product or technology.

We’re also very proud to use the following accreditations and approvals for our products;




Thermostatic products are an integral part of the Methven and Deva by Methven ranges. For complete peace of mind they maintain a safe water temperature for users and will cut off if the cold water supply fails.

NSF TMV approval is a third party thermostatic valve accreditation programme that is set up to independently test suitability of product against current legislation. Approval at TMV2 standard means the product complies with BS EN 1111/1287 and indicates suitability for use in the domestic home whilst approval at TMV3 meets NHS D 08 and indicates suitability for commercial installations such as care homes and hospitals.

Methven are proud to offer products in our portfolio which adhere to these standards having undergone the initial rigorous testing procedure and on-going audit requirements. We advocate continuous in-service testing at regular intervals to ensure there has been no temperature change ensuring maximum safety standards.


Methven UK are members of the Bathroom Manufacturers Association. They ensure the industry has a recognised voice with UK government, industry regulators and European standards bodies. The BMA provide an authoritative voice for the industry on all matters affecting manufacturing and supply.


We also offer free continuing professional development training on water saving, sustainability and regulatory requirements in partnership with the Royal Institute of British Architects (RIBA) Enterprises.

For more information email: [email protected]


The Water Regulations Advisory Scheme (WRAS) represents more than twenty water companies and:

  • Coordinates consistent advice
  • Promotes the water regulations
  • Offers advice to industry and consumers
  • Maintains directory of approved products.


Products are tested against various requirements, grouped by:

  • Mechanical tests (against TCS’)
  • Material / hygienic tests (against BS 6920)


Methven are strong supporters of WRAS approved products and off er a comprehensive portfolio of both Deva and Methven products which adhere to, and are approved to the stringent standards.


The Kiwa UK Regulation 4 Product Approval Scheme (KUKreg4) is a robust method for demonstrating compliance with the Water Supply (Water Fittings) Regulations 1999.

The regulations set legal requirements for the design, installation, operation and maintenance of water fittings, systems and appliances, specifically in order to prevent the contamination of drinking water as well as preventing misuse, waste, undue consumption and erroneous measurement.


We have collaborated with the global technology platform and all of our new specification products are listed on NBS Source with BIM models available.


We believe that quality of service, before and after sale, is of the utmost importance. It’s for this reason that we constantly strive to improve both our service to you and our product offering by listening to your comments and suggestions. By doing this it has helped us achieve and retain the renowned ISO9001 since 1995 – proving to you that we are a quality assured company..


We believe in looking after the environment by actively seeking to reduce energy consumption, while improving energy efficiency and using renewable or recyclable materials wherever we can. Besides developing our own ideas, whether they are new innovations in design or environmental issues, we also work closely with trade bodies to further ensure you’re getting the best products and service possible. In recognition of our focus on the environment, we have achieved ISO 14001 accreditation; demonstrating our commitment towards environmental issues and our pledge to reducing the impact our business has on the environment.

View the full range in our specification brochure here