Cost of Solar Thermal Installation
across the UK

# Solar Thermal Installation Trade Body Accreditation

The main UK trade bodies and regulatory schemes for solar thermal installation include MCS (Microgeneration Certification Scheme), which is essential if you want to claim the Renewable Heat Incentive or future government grants, and OFTEC (Oil Firing Technical Association), which certifies engineers for renewable heating systems. The Solar Trade Association (STA) represents the industry and sets standards of practice, though membership is not mandatory for installers. HETAS (Health and Safety Executive Approved) certifies engineers in renewable heating, and several installers hold dual qualifications across these schemes. Additionally, you may encounter installers certified to PAS 2030, which covers renewable energy installer competence, or those with CIPHE (Chartered Institute of Plumbing and Heating Engineers) registration. Understanding these credentials matters because each certification involves assessed technical knowledge, insurance requirements, and ongoing compliance, meaning an accredited engineer has proven their competence to recognised standards.

To verify a provider's credentials, check their MCS registration directly through the official MCS register on their website, which is the most reliable method and essential before committing to work. Ask for proof of OFTEC, HETAS, or STA membership, which reputable installers will provide without hesitation. Contact your local trading standards or Citizens Advice if you want to check for any complaints history. Accreditation matters significantly because it protects you legally, ensures the work meets building regulations and safety standards, and is mandatory to access government incentive schemes like the RHI (which closed to new applicants in 2022, but similar support may return). An unaccredited installer might perform the work cheaper initially, but you'll forfeit grant eligibility, have no recourse if work is faulty, and risk installing a system that fails safety or performance inspections.

Accredited solar