Consumer Unit Upgrade
NAPIT Approved · SafeContractor Accredited

Consumer Unit Upgrade Wiltshire

RCBO Protection · Modern Fuse Boxes — Devizes, Calne & Melksham

Safe, certified consumer unit upgrades for homes and businesses across Wiltshire. Full RCBO protection, surge suppression and smart monitoring options.

NAPIT Approved
SafeContractor Accredited
Based in Wiltshire
Free Quotations
Fully Insured
Fast Response
Free Quotation · 24h Response

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Tell us about your consumer unit upgrade requirements and our team will get back to you within 24 hours with a free, no-obligation quotation.

NAPIT Approved
SafeContractor
5-Star Rated
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Consumer Unit Upgrades with RCBO Protection for Wiltshire Homes & Businesses

A modern consumer unit is the heart of your property's electrical system. If your home or business in Wiltshire still has an old fuse box with rewireable fuses or outdated MCBs, it is time for an upgrade. Invisiwire provides professional consumer unit upgrades with RCBO protection for homes and businesses throughout Devizes, Calne, Melksham and all surrounding areas.

RCBOs (Residual Current Breaker with Overcurrent protection) combine the safety of RCDs with the precision of MCBs in a single device. This means every circuit in your home is individually protected against both electric shock and overload, and a fault on one circuit will not trip the entire house. We install consumer units from leading manufacturers such as Hager, Schneider and MK, all fully compliant with the latest BS7671 wiring regulations.

Our NAPIT approved electricians carry out every consumer unit upgrade with care and precision. We assess your existing circuits, plan the new layout, carry out the installation and issue a full Electrical Installation Certificate on completion. We also test and label every circuit, leaving you with clear documentation and complete peace of mind.

Many insurance companies and mortgage lenders now require properties to have modern consumer units. An upgrade from Invisiwire not only makes your home safer but also satisfies these requirements, potentially saving you money on insurance premiums. We offer free quotations and can often complete the work in a single day with minimal disruption.

How It Works

How Our Consumer Unit Upgrade Works

From your first call to completion, we make the process smooth, transparent and hassle-free.

1

Free Assessment

We inspect your existing consumer unit, wiring and circuits, then recommend the best upgrade option for your property.

2

Clear Quote

You receive a detailed, fixed-price quotation with no hidden costs. We explain what is included and how long the work takes.

3

Professional Installation

Our NAPIT approved electricians install your new consumer unit safely, test every circuit, and label everything clearly.

4

Certification & Handover

We issue an Electrical Installation Certificate, demonstrate your new unit, and answer any questions before we leave.

What We Offer

Consumer Unit Upgrade & Fuse Box Replacement Services in Wiltshire

Domestic Consumer Unit Upgrade

Replace old fuse boxes with modern consumer units featuring full RCBO protection for homes in Devizes, Calne and Melksham.

RCBO Consumer Unit Installation

Installation of RCBO-protected consumer units that isolate individual circuits for maximum safety and compliance.

Surge Protection Upgrade

Consumer units with built-in surge protection to safeguard your electrical appliances and devices from voltage spikes.

Smart Consumer Units

Modern consumer units with smart monitoring, energy tracking and remote trip alerts for tech-savvy homeowners.

Garage & Outbuilding Units

Separate consumer units and distribution boards for garages, workshops, outbuildings and garden rooms.

Commercial Consumer Units

Three-phase and high-capacity consumer units for offices, shops and small commercial premises.

Distribution Board Upgrade

Upgrade existing distribution boards with additional circuits, better protection and modern labelling.

Emergency Consumer Unit Replacement

Fast replacement of faulty or dangerous consumer units with same-day service where possible.

Why Us

Why Homeowners & Businesses Trust Invisiwire for Consumer Unit Upgrades

RCBO Protection as Standard

Every upgrade includes RCBOs for individual circuit protection, the safest and most compliant option available.

Premium Brands Only

We install Hager, Schneider, MK and other leading brands for reliability, warranty and long-term value.

Single-Day Completion

Most domestic consumer unit upgrades are completed in one working day with minimal disruption.

Full Certification Included

Every upgrade comes with a BS7671 Electrical Installation Certificate for insurance and compliance.

Insurance & Mortgage Ready

Modern consumer units satisfy mortgage lenders and insurers, potentially reducing your premiums.

Transparent, Fair Pricing

No hidden charges. Free quotations with honest advice on whether an upgrade is right for your property.

Get a Free Quote for Your Consumer Unit Upgrade

Upgrade to a modern, safe consumer unit with RCBO protection. Free assessment and transparent pricing across Wiltshire.

Common Questions

Consumer Unit Upgrade FAQs — What You Need to Know

If your property still has an old fuse box with rewireable fuses, ceramic fuses, or outdated MCBs without RCD protection, an upgrade is strongly recommended. Modern BS7671 regulations require adequate protection, and many insurers and mortgage lenders now insist on a compliant consumer unit.
An RCD protects against electric shock by detecting earth leakage but does not protect against overload. An RCBO combines both RCD and MCB functions, protecting against shock, overload and short circuits on each individual circuit. RCBOs are the gold standard for modern consumer units.
A typical domestic consumer unit upgrade takes 4-8 hours depending on the number of circuits and condition of existing wiring. We usually complete the work in a single day and restore power before we leave.
Yes, the power will need to be off while we remove the old unit and install the new one. We work efficiently to minimise downtime, and most customers are without power for only a few hours. We can schedule the work at a convenient time for you.
Yes. Every consumer unit upgrade comes with a BS7671 Electrical Installation Certificate and a Building Regulations Compliance Certificate. These documents are essential for insurance, mortgage applications and property sales.
Local Coverage

Areas We Cover for Consumer Unit Upgrades & Fuse Box Replacement

DevizesCalneMelkshamRowdeWestburyChippenhamTrowbridgeCorsham

Plus all surrounding villages in Wiltshire and Somerset.

Customer Reviews

What Our Wiltshire Clients Say

Real reviews from real customers. Rated five stars on Google and Facebook by homeowners and businesses across Wiltshire and Somerset.

“Called up to ask about a fuse in the main fuse board as we went through a power tool cable and instead of coming out to look he very kindly talked us through finding a fuse along the route of the cable and we managed to swap it out and sort the issue, no stress, nothing to pay for his time over the phone! Couldn't ask for a better person.”

Aaron Bassett
4 months ago · Google Review
Invisiwire van serving Wiltshire

Need a Trusted Electrician in Wiltshire?

Covering Devizes, Calne, Melksham, Rowde, Westbury, Chippenham, Trowbridge, Corsham, Bradford-on-Avon, Marlborough & Bath.

Rowde, Devizes, Wiltshire