Find guidance below on what to do if things do go wrong.
We understand that if something goes wrong, you need a simple, fair, and transparent process to follow – and that sometimes, help is needed to get to the right outcome.
If you have any additional support needs and would benefit from any reasonable adjustments we can make, please let us know when you contact us.
If you’ve complained to your MCS certified installer and after giving reasonable time, you haven’t had your issue resolved, MCS will take ownership of your complaint:
If you think something gone wrong, please fill in the form using the button below and our Customer Support Helpdesk will be in touch.
A complaint might include the following:
Step 1 - Complain to your installer.
If you notice a problem, you should first contact your installer. It’s in your installer’s best interests to solve any issues quickly. This can be done in the form of a formal letter of complaint.
You should explain:
Allow a reasonable amount of time for them to respond. How long this takes, and what the process looks like, will depend on your individual installer. Some organisations may have a complaints process on their website and have published set timescales.
Please note you should be prepared to allow your installer access to your installation to enable them to address or resolve your complaint.
14 days (10 working days) is a reasonable maximum time in which you should expect a response. It may not be possible for them to fully resolve the issues in this time – but they should at least have agreed on a plan of action with you.
Step 2 - Escalate to your installer’s Certification Body or Consumer Code.
Your installer will be a member of a UKAS accredited Certification Body – these are independent organisations responsible for certifying and monitoring installers to ensure they meet MCS Standards.
They will also be a member of a CTSI approved Consumer Code who are organisations that set and enforce additional rules for businesses to protect consumers.
If your complaint is related to technical issues with the work completed, you should escalate your complaint to the Certification Body.
Your Installer’s Consumer Code can assist with pre-sale and contractual issues, this may include:
To find your installer’s Certification Body and Consumer Code, this information will either be available on their website, or through their profile on the MCS Find an Installer tool.
Step 3 - Escalate to MCS or Alternative Dispute Resolution (ADR).
If the Certification Body and/or the Consumer Code are not able to resolve the complaint, they may refer you to Alternative Dispute Resolution (ADR), which is a way to resolve disputes without going to court. It helps consumers and businesses settle disputes fairly and quickly. An independent expert reviews the issue and makes a decision.
If you would like MCS to review your complaint to see if there is anything that we can do to help secure a resolution, you will need to report it to us using the form below. This will provide us with the information we need to understand the nature of your complaint.
We can only investigate after the Certification Body or Consumer Code has fully exhausted their complaint process or if they were unable to resolve the issue to your satisfaction.
If you are in dispute with your installer however, MCS will be unable to help as we are not accredited to perform dispute resolution. You should instead, consider ADR and discuss this with whichever Certification Body and/or Consumer Code has been managing your complaint.
If an installer is found to be non-compliant, the ultimate sanction is the removal of their MCS licence, based on factors like their complaint history.
Please note, MCS cannot:
If you’re not a customer, but you want to let MCS know your concerns about the safety and/or compliance of an installation you’ve seen by an MCS certified installer, you can follow our whistleblowing procedure.