posted 2nd April 2025
Introduction to Consumer Unit Changes
If you're a homeowner or landlord, chances are you've heard of a consumer unit — sometimes called a fuse box or distribution board. It's the electrical heart of your home, managing all circuits and ensuring safe power distribution.
As regulations evolve and home demands grow, many older properties need a consumer unit upgrade. Whether for safety, compliance, or peace of mind, understanding the consumer unit change cost is key to planning effectively.
Learn more about our full range of electrical services in Southampton to support your property.
Factors Affecting the Cost of a Consumer Unit Change
Several variables can affect the overall cost of upgrading your consumer unit:
Type of Property
Larger homes often require more complex units with additional circuit protection, increasing cost.
Existing Wiring Condition
If your current wiring is outdated or unsafe, it may need upgrading — adding to labour and material expenses.
Labour and Certification
A professional installation by a NICEIC-certified electrician includes testing, certification, and compliance with all UK standards — and this is factored into the final price.
Average Consumer Unit Change Cost in the UK
Let’s break down the average costs:
Property Type Estimated Cost Range
1-2 Bedroom Flat £350 – £400
3-Bedroom House £400 – £500
Larger Property / Complex Systems £500 – £700+
These figures include labour, parts, and certification. Remember: premium units with surge protection or RCBOs may push the cost higher but offer better long-term value.
What’s Included in a Consumer Unit Replacement?
When you choose a reputable electrician like Chase Farm Electrical, here’s what’s typically included:
- Removal of old fuse box
- Supply and installation of new 18th Edition consumer unit
- Upgraded main earth bonding (if required)
- Complete electrical testing (EICR)
- NICEIC certificate of compliance
- Notification to local building control (Part P)
Signs You May Need a Consumer Unit Upgrade
Not sure if it’s time to upgrade? Here are tell-tale signs:
- Fuse box with rewireable fuses (not MCBs)
- Regularly tripping circuits or blown fuses
- No RCD protection (critical for modern safety)
- Recommendation on an Electrical Installation Condition Report (EICR)
Legal and Safety Regulations Around Consumer Units
Building Regulations (Part P)
All consumer unit changes must comply with UK Building Regs. Part P requires work to be reported to local authorities by a certified contractor.
BS 7671 Compliance
Your new consumer unit must meet the 18th Edition of the wiring regulations (BS 7671).
Why NICEIC Certification Matters
NICEIC electricians like those at Chase Farm Electrical are regularly assessed and guarantee compliance. Learn more at the official NICEIC website.
DIY vs. Professional Installation – The Real Cost
Thinking of doing it yourself? Think again.
Risks of DIY Consumer Unit Changes
- Voided home insurance
- Legal non-compliance
- Dangerous installations and fire hazards
Why Go Pro?
- Guaranteed safety and compliance
- Peace of mind with proper documentation
- Professional troubleshooting if issues arise
Chase Farm Electrical’s Transparent Pricing Model
We believe in full transparency. Our quotes include everything — no surprise fees.
- Free on-site surveys
- Itemised quotations
- All work guaranteed
We even explain what you’re paying for, so you stay informed.
Step-by-Step Guide to a Consumer Unit Replacement
1. Site Survey – We assess your current setup and wiring.
2. Quote and Approval – You receive a fixed, detailed quote.
3. Installation Day – Power is safely isolated, and the new unit installed.
4. Testing & Certification – We test every circuit and issue compliance certificates.
5. Aftercare – We walk you through the new setup and offer support.
Customer Testimonials and Case Studies
"Fantastic service! Chase Farm Electrical were friendly and professional - highly recommend for any electrical needs!"
“Chase farm electrical have done work on my behalf on several occasions now. Always does a professional job, I shall definitely be using again! Highly recommended."
FAQs About Consumer Unit Change Cost
Q1: Does the cost include VAT?
Yes, all our quotes include VAT. No hidden extras.
Q2: How long does a replacement take?
Most installs take 1 working day, including testing.
Q3: Can I spread the cost?
Yes. We offer flexible payment plans for qualifying customers.
Q4: Do I need to notify building control?
No. As NICEIC contractors, we handle notification for you.
Q5: Is this a legal requirement?
If your EICR fails or your unit lacks RCD protection, replacement is often necessary.
Q6: Will I be without power during the process?
Yes, but only temporarily during installation and testing.
Energy Efficiency and Smart Consumer Units
Modern consumer units offer more than just safety. Some include:
- Integrated surge protection
- Compatibility with smart monitoring systems
- Lower energy bills through smarter load balancing
Ask us about energy-saving options during your consultation!
Areas We Serve for Consumer Unit Upgrades
We proudly serve:
- Southampton
- Eastleigh
- Totton
- Hedge End
- Chandler’s Ford
- Winchester
- Romsey
Explore our full service area coverage for more details.
How to Book Your Consumer Unit Change With Chase Farm Electrical
Booking is simple:
1. Contact us online or by phone
2. Get a free site assessment
3. Receive a quote within 24 hours
4. Choose your installation date
Make the Safe Switch Today
Your consumer unit is your home’s electrical safety net. Don’t leave it to chance.
With fair pricing, certified electricians, and fast service, Chase Farm Electrical is your go-to for safe, affordable consumer unit change cost solutions.
