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15 May 2026 · 4 min read

Why MCS Certification Matters When Choosing a Solar Installer

MCS is the standard that unlocks export tariffs and warranty backing. Here's what it means and why you should never use a non-MCS installer.

MCS (Microgeneration Certification Scheme) is the UK quality standard for renewables installations. It's not optional if you want your system to be worth anything financially.

What MCS actually gives you

  • Smart Export Guarantee eligibility — you can't sell excess solar back to the grid without an MCS certificate.
  • 0% VAT — only MCS installs qualify.
  • Insurance-backed workmanship warranties.
  • Property value protection — most conveyancers now check for MCS on solar installations.

How to verify

Every MCS installer has a public MCS number you can look up on the MCS certified installers register. Ask for it before signing anything.

Our accreditations

Eco First Group is MCS certified and also holds NAPIT, NICEIC and Checkatrade approvals. Every install comes with a full MCS certificate on completion.

Any questions about certification? Call us on 0208 798 2728 — we'll walk you through what to look for even if you go elsewhere.

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