Fitting a Consumer Unit: A Complete Guide by Prometheus Electrical

Feb 1, 2024

The Importance of a Consumer Unit

As a homeowner, ensuring the safety and efficiency of your electrical system is paramount. And when it comes to safeguarding your property, one crucial element that cannot be overlooked is the consumer unit. The consumer unit, also known as a fuse box or distribution board, is responsible for controlling and distributing electricity throughout your premises.

Why Consider Fitting a New Consumer Unit

If you have an outdated fuse box or have been experiencing electrical issues, it might be time to consider fitting a new consumer unit. Upgrading to a modern consumer unit offers several benefits:

  • Enhanced Safety: Older consumer units may not meet the latest safety standards, putting your property at risk. A new unit ensures your electrical system is up to code and minimizes the chance of electrical hazards.
  • Improved Efficiency: Newer consumer units are equipped with advanced features such as RCDs (residual current devices) and MCBs (miniature circuit breakers), which provide better protection against faults and enable easier troubleshooting.
  • Increase in Property Value: A modern, safe, and compliant electrical system adds value to your property and can be an attractive selling point for potential buyers.

Step-by-Step Guide to Fitting a Consumer Unit

Before attempting to fit a consumer unit yourself, it's important to note that electrical work can be complex and potentially dangerous. We highly recommend hiring a qualified and experienced electrician to carry out the installation for you. However, we understand that some may prefer a better understanding of the process, so here is a step-by-step guide:

Step 1: Planning and Safety Precautions

First, ensure that you have the necessary materials and tools required for the installation. It is essential to wear appropriate safety gear, including gloves and safety goggles, throughout the process. Cut off the power supply from the main switch or by turning off the electricity at the main fuse. Safety should always be the top priority.

Step 2: Removing the Old Consumer Unit

To remove the old consumer unit, carefully disconnect the connections from the wires, ensuring that none of the live wires are exposed. Take note of the existing circuit configurations and labeling to make it easier for the installation of the new unit.

Step 3: Installing the New Consumer Unit

Mount the new consumer unit securely on the wall, ensuring it is easily accessible and at a suitable height. Connect the different circuits to the new unit, following the color-coded wiring and labeling. Double-check all connections are secure and tight.

Step 4: Testing and Final Checks

Once the connections are in place, restore the power supply and test each circuit to ensure everything is functioning correctly. It's advisable to use a socket tester or consult a qualified electrician to perform comprehensive testing to guarantee optimal safety and functionality.

Expert Tips for Fitting a Consumer Unit

To ensure a successful and safe consumer unit installation, consider the following expert tips:

  • Hire a Professional: While it's helpful to understand the process, it's best to leave the installation to a qualified electrician to avoid any potential risks or mistakes.
  • Choose a Quality Consumer Unit: Investing in a reliable and high-quality consumer unit ensures long-term safety and efficiency.
  • Seek Certifications and Compliance: Ensure that the chosen electrician follows all industry regulations and standards during the installation process.
  • Regular Maintenance: Once your new consumer unit is fitted, schedule periodic inspections and maintenance to identify and address any potential issues promptly.

Contact Prometheus Electrical for Consumer Unit Installations

When it comes to fitting a consumer unit, trust the experts at Prometheus Electrical to deliver exceptional service. As leading providers of lighting fixtures & equipment and electricians services in the UK, we have the expertise and experience to carry out safe and compliant installations, ensuring your electrical system meets the highest standards of quality and reliability.

For more information or to schedule a consultation, visit our website at Our team is here to help you with all your electrical needs.