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The consumer area of this website
is to help those wanting to purchase
an MCS certified product or find an
MCS certified installation company.


The Microgeneration Certification Scheme (MCS) is a certification scheme for MCS Contractors and Products. The scheme helps to ensure consistent standards and provide confidence to consumers considering investing in microgeneration technologies. However it is recognised that at times things don’t always go to plan, in such circumstances, MCS is committed to dealing with complaints in a fair and impartial manner.

Important information

Please ensure you have read this information and the MCS Complaint Guidelines prior to submitting your complaint.

  • The MCS Complaint Guidelines provide an outline of how MCS handles complaints. You should read the guidelines before submitting a complaint.
  • If the issue you are complaining about has already been resolved then it will be treated as feedback rather than a complaint.

Please note, the complaints form must be filled in with as much detail as possible in order for us to register them properly. We cannot process complaints that do not provide a full summary of the issue.

For other organisations who can help, click here

To download a paper-version of the complaints form please click here.

Please click here to continue to the MCS Complaints Form