Helix Energy UK

Helix Energy UK is a sustainability specialist firm that integrates compliance and energy strategy from the outset of projects. They design, install, and certify efficient, cost-effective, and sustainable buildings for architects, developers, and homeowners. Their model, ADI (Assess, Design, Install), ensures that the design, installation, and compliance phases are handled by a single, coordinated team to prevent miscommunication and performance gaps.

Led by Dion Mellows, the company operates with a compliance-first approach, embedding regulatory requirements and performance considerations into every project. With offices in London and Cornwall, Helix Energy serves clients across the South West, South East, and nationwide, combining local knowledge with technical expertise for complex schemes. They are accredited and registered with leading UK energy and construction bodies, ensuring high industry standards and client confidence.

Helix Energy focuses on delivering measurable impact across energy, compliance, and installation. They offer a comprehensive range of services including SAP & EPC consultancy, Part L & Part O support, acoustic and air permeability testing, solar PV and battery storage system design and installation, and air source heat pump systems. They also assist with PPAs, funding, and grants, providing a single partner from drawings to sign-off for developers and project support.

The company prides itself on end-to-end delivery, sustainability that performs, and a compliance-first mindset. They work with a variety of clients, including architects, planning consultants, property developers, commercial and industrial clients, public sector organisations, and housing associations, ensuring that every project meets regulatory requirements while delivering real-world performance, reliability, and long-term value.