Quality assured

At Sunamp, we hold the following compliance certificates and accreditations covering our thermal storage products and how we conduct our business.  

See product accreditations

See company accreditations


Sunamp products are fully certified for the UK and European markets, fully compliant with the Low Voltage Directives (LVD) and Electromagnetic Compatibility (EMC) directives, and are CE and UKCA marked.

RAL (Phase Change Material, PCM, Standard)

Sunamp is the first and only heat battery manufacturer in the world to be awarded A Grade RAL Certification, the independent quality mark and the only global standard for Phase Change Material (PCM) and PCM products.

The award confirms performance of our flagship Plentigrade P58 material with no noticeable degradation to 10,000 cycles in the Thermino product – the equivalent of over 13 years daily use.


Sunamp products have been assessed and meet the requirements of the applicable EC directives and comply with EU safety, health and environmental requirements.


Sunamp products meet the applicable requirements of the UK Conformity Assessed (UKCA) scheme.

Kiwa (Water Regulations)

Sunamp products are approved under the Kiwa UK Regulation 4 Product Approval Scheme. This is a robust method for demonstrating compliance with the UK Water Supply (Water Fittings) Regulations 1999 which are important for public health, safeguarding water supplies and promoting the efficient use of water within premises across the UK.


We work to the highest of standards and have ISO accreditation having achieved key International and UK quality certifications which underline our commitment to sustainability, health and safety and quality in everything that we do.

ISO 9001:2015 – Quality Management

Sunamp is certified to ISO 9001:2015, the internationally recognized Quality Management System (QMS) standard. This standard is based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement. It recognises that customers receive consistent, good-quality products and services.

ISO 14001 – Environmental Management

Sunamp is ISO 14001:2015 certified for meeting standards required for its environmental management system that enhances environmental performance and manages environmental responsibilities in a systematic manner that contributes to the United Nations sustainable development goals.

ISO 45001 – Occupational Health & Safety

Sunamp is ISO 45001:2018 certified for meeting requirements for an occupational health and safety (OH&S) management system and providing safe and healthy workplaces by preventing work-related injury and ill health, as well as by proactively improving its OH&S performance.