Answer
What is MCS certification?
MCS (Microgeneration Certification Scheme) certifies installers and products for heat pumps and solar — and it's required to claim the Boiler Upgrade Scheme grant.
In more detail
Always use an MCS-certified installer for grant-eligible work.
Work it out for your home: try our free grant eligibility checker →
2026 figures, based on Energy Saving Trust, Ofgem & gov.uk data · always confirm with a professional survey.