Changing a Circuit Breaker: Pricing, Installation & Essential Tips Explained
Is your home in need of a safety upgrade? Understanding the costs involved in a circuit breaker change is essential for every homeowner. Learn how replacing a consumer unit improves efficiency and reduces risks. Read on to stay informed about cost-effective options and make sure your home is up to code.
In this Price Guide we will talk about:
- Understanding Circuit Breakers
- Cost Overview
- Replacement Costs
- Replacing a Consumer Unit
- Professional Circuit Breaker Replacement Costs
- Additional Costs and Hidden Expenses
- Find Verified Electricians on MyBuilder
- Common Questions
Understanding Circuit Breakers: The Basics
Circuit breakers protect your home by automatically stopping electrical flow during overloads or short circuits, helping prevent fires and damage. As a first line of defence, they ensure faults are managed quickly, keeping your electrical system safe.
Cost Overview: What Does It Cost to Replace a Circuit Breaker?
The average cost to replace a circuit breaker generally ranges from £50 to £160 per breaker, depending on the type and specifications. Costs can vary based on several critical factors, which include:
- Type of Circuit Breaker: Different breakers, such as single-pole, double-pole, or specialised types like GFCI, have varying prices.
- Labour Costs: The fee for hiring a qualified electrician can range from £40 to £70 per hour, impacting the overall expenditure.
- Location: Geographic differences may influence both availability and cost of services.
- Urgency and Accessibility: Quick replacements or hard-to-reach areas may incur additional costs.
- Additional Services: Tasks like troubleshooting or upgrading electrical systems can increase the total cost.
Note: For a closer look at what's involved in replacing an electric fuse box—including average prices and key cost factors—visit our guide to new electric fuse box costs.
Circuit Breaker Replacement Costs: Detailed Breakdown
The cost to replace a circuit breaker can be divided into the cost of the circuit breaker itself, the installation process and any additional labour that might be required. Installation costs tend to vary based on the intricacy of the system, as well as the number of breakers being replaced.
New Circuit Breaker Price: How Much Does It Cost?
The price of a new circuit breaker can differ widely, largely depending on the type and capacity required.
Simple single-pole breakers typically range between £10 and £20, while more advanced types, such as GFCI and AFCI breakers, can cost more. Factors like brand, specifications, and suitability for your specific system also play a significant role.
MyBuilder Tip: Check the compatibility of the new circuit breaker with your existing system to avoid unnecessary purchases.
Circuit Breaker Installation Cost: What to Expect?
The installation of a circuit breaker involves more than just the purchase of the unit, encompassing the setup and configuration within the electrical system.
Typically, the installation costs range from £40 to £70 per hour, with the total cost influenced by the complexity of the task and the professional fees in your area. For intricate setups, the charges can be higher due to increased labour time.
Don't forget: Always hire qualified electricians to ensure compliance with safety standards and regulations during installation.
Hire qualified electricians now
Cost of Replacing a Consumer Unit: An In-Depth Look
The average cost of consumer unit replacement can range significantly depending on the specifics of the job. Typically, prices for a full replacement, including the unit, parts, labour and certification, fall between £500 and £1,200. Reasons often include upgrading outdated systems or responding to safety concerns.
| Consumer Unit Type | Cost |
|---|---|
| Small homes (6–8 circuits) | £500–700 |
| Mid-size (10–12 circuits) | £700–900 |
| Larger homes | £900–1,200+ |
Don't forget: Regular inspections can help determine when a replacement is necessary, potentially preventing unsafe situations. Need a safety check? Visit our guide to electrical safety check costs for more insight into what’s involved and how much it might cost.
Also interesting: The choice of consumer unit type can greatly influence the overall cost, with populated RCBO units offering a more comprehensive and future-proof solution.
How Much Does Professional Circuit Breaker Replacement Cost?
The labour costs for hiring an electrician typically range from £40–70 per hour, with most jobs taking around 1 to 2 hours.
This cost generally includes their knowledge, safety checks and any necessary adjustments to your electrical setup. Depending on the service provider, some electricians might also include a standard call-out fee that covers their initial visit.
| Region | Cost |
|---|---|
| London | £60–£80 |
| Northern UK | £40–£60 |
| Midlands | £45–£65 |
| Southern UK | £50–£70 |
MyBuilder Tip: Get multiple quotes from electricians to ensure you get the right service at a competitive price.
Save money and energy by hiring a professional tradesperson to change your circuit breaker, ensuring a safe service without the DIY hassle. Post your job on MyBuilder today to connect with local electricians and find the right fit for your project!
Hire qualified electricians today
Additional Costs and Hidden Expenses When Replacing Circuit Breakers
When replacing circuit breakers, it is crucial to consider potential additional costs and hidden expenses that may arise. These extra charges can significantly affect the overall cost, so being informed beforehand is beneficial.
- Removing old fuse box: Expect to pay approximately £75. This is often necessary to make way for a new installation.
- Earth bonding upgrade: Ranging from £150 to £300, this ensures your electrical system is safely grounded.
- Meter tail costs: Priced at around £4 per metre, new meter tails might be required if the current ones are insufficient.
- Extra circuits: Each additional circuit can add £50 to £200 to the overall cost.
- Rewiring or fault finding: Major electrical updates may cost between £250 and £3,000+, depending on the complexity of the task.
- Certification/EICR test: An Electrical Installation Condition Report is essential and typically costs between £100 and £210.
- Scaffolding or difficult access: If your location requires special access arrangements, it may incur costs of £250 to £500+.
MyBuilder Tip: Consider bundling extra tasks in a single visit to save on multiple call-out charges.
Need a Circuit Breaker Change? Find Verified Electricians on MyBuilder Today!
Is your circuit breaker in need of an upgrade? Don’t risk safety with a DIY approach—choose a verified electrician near you. Post your job on MyBuilder today and let our professional tradespeople ensure your home is in secure hands.
Connect with electrical professionals
FAQ: Common Questions Readers Ask About Circuit Breaker and Consumer Unit Replacement
What are the potential challenges when installing a new circuit breaker?
Installing a new circuit breaker can present several challenges. Firstly, ensuring compatibility with existing electrical infrastructure is critical; not all new circuit breaker models fit old systems. Secondly, the installation process can be complex, requiring a thorough understanding of electrical systems to secure correct wiring and adhere to safety regulations. There's also a risk of electric shock if the procedure is not executed with precision, which is why it's often advisable to hire a qualified electrician to perform the task.
What practical steps can I take to ensure a smooth circuit breaker change process?
To ensure a smooth circuit breaker change, start by consulting a qualified electrician to evaluate your current system and provide professional advice. It's essential to obtain any necessary permits or approvals from local authorities. Prioritise purchasing a circuit breaker that is compatible with your system's specifications. Lastly, before beginning the installation, ensure that the power supply is switched off entirely to avoid any electrical hazards, and double-check that all connections are secure and compliant with the manufacturer’s guidelines and relevant safety standards.
How often should a homeowner consider updating their consumer unit?
It is generally recommended that homeowners consider updating their consumer unit every 20 to 30 years or in conjunction with significant renovations or upgrades to the electrical system. However, if your home experiences frequent electrical issues such as tripped breakers, flickering lights, or overloading, or if your consumer unit does not support the latest electrical compliance standards, an upgrade might be needed sooner. Regular inspection by a qualified electrician can help determine when a replacement is necessary.
What specific scenarios might require a consumer unit replacement?
Several scenarios might necessitate a consumer unit replacement. If your consumer unit features fuses instead of circuit breakers, it might be outdated and due for an upgrade to enhance safety. Homeowners undergoing major renovations or adding high-consumption appliances might also need a replacement to accommodate increased electrical loads. Additionally, if you are adopting renewable energy sources like solar panels or if your current unit lacks RCD protection, a new consumer unit may be required to meet modern safety standards and ensure seamless integration with enhanced technologies.
Related questions on Ask a tradesperson
See what others are asking our expert tradespeople. Browse all questions
Electrical
Pool heater problem
Anonymous user 23/06/2026 - 8.31 AM
I have an external socket which is supplied by its own circuit from the distribution board. I have a pool heater which requires 13A to run. I ran it last year on a heavy duty extension cable with no issues. This year it is overheating at the plug and melting the socket. The heavy duty extension cable is built for running powerful tools so should be able to cope but this year it isn’t. Any advice?
2 answers
Electrical
Electric Shower
Sean Reid 15/06/2026 - 12.02 PM
My electric shower keeps tripping, is it best to replace the full unit?
3 answers
Electrical
fuse box query
Anonymous user 12/06/2026 - 7.59 AM
Am thinking of buying a house that has a Memera 2000 white plastic consumer in the garage above which appear to be some damp roof planks. I can supply a photo, Just wondering how old such a fuse box is likely to be and costs of replacing?
4 answers
Need expert advice?
Ask a question