How Much Does a Fuse Board Upgrade Cost in London? (With Area-Based Examples)

If you're a homeowner or landlord in London and your electrical system still has an old fuse board, it's time to consider an upgrade. But how much does it cost—and does it vary depending on where you live?

In this article, we break down:

1. Average fuse board replacement costs
2. What's included in the price
3. Factors that affect the cost
4. Area-specific examples (Clapham, Wimbledon, Fulham, etc.)
5. Why it’s a critical investment for your home’s safety and compliance

⚠️ Why Fuse Boards Need Replacing

Old fuse boards—especially those with ceramic fuses, no RCDs, or wooden bases—pose major safety risks:

1. No protection against electric shocks
2. Higher risk of electrical fires
3. Often non-compliant with UK regulations (Part P & 18th Edition Wiring Regs)
4. Can lead to failed EICRs (a legal requirement for landlords)

✅ A modern consumer unit with RCBOs or RCDs not only keeps your family or tenants safe but also ensures your property is compliant and insurable.

💰 Average Cost of a Fuse Board Upgrade in London

Type of Installation

Price (inc VAT)

Fuse Board Replacement – 6 Way

£840

Fuse Board Replacement – 10 Way

£960

Fuse Board Replacement – 14 Way

£1,080

Fuse Board Replacement – 20 Way

£1,260

HMO Fuseboard – 6 Way

£1,320

HMO Fuseboard – 10 Way

£1,440

HMO Fuseboard – 14 Way

£1,560

HMO Fuseboard – 20 Way

£1,740

Optional Surge Protection Add-on → +£96 (per unit)

✅ What’s Included?

At Lumiel, our pricing includes:

1. Full removal of your old fuse board
2. Supply and installation of new 18th Edition-compliant consumer unit
3. Circuit testing and labelling
4. Certification (Electrical Installation Certificate + Building Control Notification)
5. Rubbish disposal and a clean finish

No hidden fees. No upselling. Just transparent, safe service.

📍 Area-Based Examples (South West London Focus)

🏡 Clapham (SW4)

Victorian/Edwardian conversions.

💸 Cost: £840–£960

Extra: bonding or minor rewiring may be needed.

🏘️ Wimbledon (SW19)

Larger family homes, garden circuits, EV chargers.

💸 Cost: £960–£1,080

Often includes surge protection.

🏠 Putney (SW15)

Apartments & semi-detached homes.

💸 Cost: £840–£960

Fast turnaround for sales/EICR compliance.

🏙️ Fulham (SW6)

Smart home systems, underfloor heating, LEDs.

💸 Cost: £1,080–£1,320

Usually RCBO boards for higher safety.

🏢 Battersea / Nine Elms

Modern flats (some older installs outdated).

💸 Cost: £840–£960

Often done during refurbishments.

🔍 What Can Affect the Price?

1. 🔌 Number of circuits → bigger board, higher cost
2. 🏚️ Property age → older homes may need bonding/earthing
3. 🚙 EV charger integration → dedicated RCBOs required
4. 🌩️ Surge protection → +£96 add-on
5. 🧾 Certification → included with Lumiel

🛠️ Is It Worth It?

Absolutely. Replacing an outdated fuse board:

1. Reduces fire risks
2. Prevents injury or death from shocks
3. Passes EICR requirements
4. Protects your property & appliances
5. Adds value to your home

A one-off cost for peace of mind? It’s a no-brainer.

✅ Why Choose Lumiel for Your Fuse Board Upgrade?

1. NICEIC Approved Contractor & ECA Member
2. Fast, clean, certified installs
3. Same- or next-day availability in South West London
4. Transparent pricing and honest advice

📞 Get a Free Quote in Your Area

Live in Wimbledon, Clapham, Fulham, Battersea, or nearby?

We’ll assess your needs and give you a fixed quote—no pressure.

👉 Call us today or fill out our online form.

‍