The Complete Guide to Changing a Consumer Unit with

Dec 14, 2023

Are you considering changing a consumer unit in your home or business? Look no further than, your trusted source for top-grade lighting fixtures & equipment and expert electricians. In this comprehensive guide, we will walk you through the step-by-step process of safely replacing your consumer unit, ensuring the highest standards of electrical safety and efficiency.

Why Change a Consumer Unit?

Consumer units, also known as fuse boxes or distribution boards, play a crucial role in supplying electricity to various circuits within your premises. Over time, these units may become outdated or unreliable, posing potential safety hazards. By upgrading your consumer unit, you can enhance electrical safety and ensure optimal performance for your lighting fixtures and equipment.

Step-by-Step Guide: Changing Your Consumer Unit

Before attempting to change a consumer unit, it is vital to prioritize safety. Always consult a qualified electrician like those at to ensure compliance with regulations and to avoid any unnecessary risks. Nevertheless, here are the general steps involved in replacing a consumer unit:

1. Assess Your Electrical Needs

Start by evaluating your electrical requirements and determining the appropriate consumer unit for your premises. Consider factors such as the size of your property, the number of circuits, and the different types of electrical equipment you may be using. This assessment will help you select a suitable consumer unit that can accommodate your specific needs.

2. Gather the Necessary Tools and Materials

Before you begin, gather all the required tools and materials. This typically includes a new consumer unit with the appropriate amperage rating, circuit breakers or residual current devices (RCDs), cables, connectors, and labeling materials. Ensuring you have everything ready beforehand will streamline the process and minimize any unnecessary delays.

3. Turn Off the Power Supply

Prior to any electrical work, it is vital to switch off the power supply to ensure safety. Locate the main switch or fuse, usually found next to the existing consumer unit, and turn it off. Ensure you have proper lighting and use extra caution when dealing with electrical components.

4. Disconnect and Remove the Existing Consumer Unit

Carefully disconnect all the wires and cables from the existing consumer unit, starting from the main switch. Take note of the connections and labels, making it easier to reconnect the wires correctly later. Once all connections are removed, unscrew and remove the old consumer unit from the wall.

5. Install the New Consumer Unit

Position the new consumer unit on the wall, ensuring it is securely fastened. Begin reconnecting the cables and wires according to your previous notes and labels. Pay close attention to matching the correct polarity and ensuring tight connections. This stage requires precision and accuracy to avoid any potential electrical issues.

6. Connect and Label the Circuits

Connect the circuits to the appropriate circuit breakers or RCDs within the new consumer unit. Take the time to properly label each circuit to facilitate future maintenance or repairs. Clear and accurate labeling is essential for both safety and ease of use.

7. Double-Check the Connections

Before fully securing the consumer unit, go through all the connections again to ensure they are secure, properly labeled, and correctly wired. Any loose connections or mistakes could compromise the safety and functionality of your electrical system.

8. Restore the Power Supply and Test

Once you are confident that everything is in order, carefully switch the power supply back on. Conduct a thorough test to ensure all circuits, lighting fixtures, and equipment are functioning correctly. This step is crucial in verifying the success of your consumer unit replacement.

Choose for Reliable Consumer Unit Replacements

When it comes to changing a consumer unit, it is essential to prioritize your safety and entrust the task to experienced electricians like those at With years of experience in the industry, we are committed to providing top-quality lighting fixtures & equipment and professional electrical services.

By choosing, you can benefit from our expert team's extensive knowledge and unwavering dedication to exceptional customer service. We adhere to stringent safety standards, ensuring your consumer unit replacement is carried out efficiently, effectively, and in full compliance with all required regulations.

Contact Today

Ready to upgrade your consumer unit? Contact today and let our skilled electricians meet your lighting fixtures & equipment and electrical needs. With our expertise, attention to detail, and commitment to excellence, we are your trusted partner in achieving electrical safety and efficiency.