Replacing Your Consumer Unit: Step-by-Step with Bluerock Electrical

Replacing a consumer unit (sometimes called a fusebox) can feel like a big job – and for good reason. It’s at the very heart of your home’s electrical system, controlling and protecting every circuit in your property.

At Bluerock Electrical, we’ve been replacing consumer units for over 20 years, so we know how to make the process smooth, safe, and stress-free. Our approach is designed to keep disruption to a minimum while ensuring your new unit is fully compliant with the latest regulations.

Here’s exactly how we do it.

1. Free Estimate – Clear, upfront pricing

The first step is simple – send us photographs of your current consumer unit, or book an in-person visit. With this information, we’ll prepare a clear, written estimate.

No vague guesses, no hidden charges – just transparent pricing so you know exactly what’s involved before we start.

2. Pre-Work Testing – Safety comes first

The day before the replacement, we carry out comprehensive testing on your electrical system.

Why is this important?
When any electrical work is carried out, it’s essential to test the circuit beforehand. For a consumer unit change, that means testing every single circuit connected to the unit.

This allows us to:

• Confirm your existing wiring is safe to work on.

• Identify any faults that might need repair before the new unit is energised.

• Avoid unpleasant surprises on installation day.

If we find any issues, we’ll talk you through them so you can make informed decisions about repairs.

3. Replacement – Installing your new consumer unit

On installation day, our qualified electricians carefully remove your old unit and fit a modern, fully compliant replacement.

Your new consumer unit will include:

• MCBs (Miniature Circuit Breakers) for fire protection.

• Type A RCDs (Residual Current Devices) to protect against electric shock.

• SPDs (Surge Protection Devices) to safeguard sensitive electronics.

We work efficiently and methodically, keeping your power switched off for the shortest possible time.

4. Final Testing & Repairs – Double-checking everything

Once the new consumer unit is fitted, we test all circuits again to confirm everything is working as it should.

If any faults were identified earlier, we’ll either fix them on the same day (if possible) or schedule another visit for larger repairs. Our goal is to leave your home safe, compliant, and fully operational before we leave.

5. Certification & Registration – Your proof of compliance

When the work is complete, you’ll receive an official electrical certificate detailing:

• A full description of the work carried out.

• Test results for each circuit.

• Any advisory notes for future reference.

For larger jobs, we also register the work with your local council’s Building Control department. This triggers an insurance-backed warranty, giving you extra peace of mind – even if we were to cease trading in the future.

Why our process works

At Bluerock Electrical, we believe in:

• Safety first – thorough testing before and after installation.

• Clear communication – we explain every step in plain English.

• Minimal disruption – we work around your schedule and keep downtime to a minimum.

• Long-term peace of mind – your new consumer unit is fully certified and backed by warranty.

Thinking about upgrading your consumer unit?

Whether you’re running out of space in your current fusebox, adding new circuits, or simply want the reassurance of modern safety features, we can help.

📞 Call Bluerock Electrical today for a free, no-obligation estimate and expert advice you can trust.