Installer certification and consumer codes
HIES member (Home Insulation & Energy Systems)
HIES (Home Insulation & Energy Systems) is a consumer code for home energy installers, approved by the Chartered Trading Standards Institute, and a TrustMark scheme provider with its own dispute resolution scheme. Membership is voluntary under MCS’s 2025 scheme.
See MCS certification and why it matters for how consumer codes fit with MCS from 2026.
Verified 0 installers found on the HIES member list
None verified yet.
Company says 52 more installers say they hold this
Stated on the installer’s own website; we haven’t checked these yet. Always ask for the certificate or membership number and check it yourself.
- Acentia Solar
- Adept Renewables
- Biosus Energy
- Blue Leaf Energy
- Bristol Solar and Roofing Services
- Broden
- CRC Solar Specialists
- CRG Direct
- D&R Energy
- Duoserve
- Eco2u NW
- Ecoaim
- Ecovia
- Ecowise Renewables
- EJS Electrical & Renewables
- Electrical Energy
- Elite Electrical Solutions
- Evergen Solar
- Evolve Electrical Contractors
- Forward Energy
- Future Proof Solar
- Green Eco Group
- Greener Energy Group
- Greenscape Energy
- Greentech Renewables
- HSB Renewables
- JME Energy
- Jorro
- Kingsley Roofing & Solar
- Modern Energy & Electrical Services
- Optimum Electrics
- Prime Time Solar
- Project Solar
- Purelec Energy
- Renegade Solar
- REST UK
- RJ Hill Electrical
- Senergy Direct
- Sol4r Energy
- Solar Armour
- Solar East Anglia
- Solar EV North
- Solar Simplicity
- Solar4Good
- Solarsmith
- SolarTherm UK
- Solent Solar
- Solum GB
- The Energy Smart Group
- The Solar Co
- UK Energi
- Upvolt Energy
Listed by name. Search these by distance from your postcode · What “verified” means