Consumer Unit Upgrade Milton Keynes | Fuse Board Replacement | C-Lec Electrical
NAPIT Approved • Milton Keynes

Consumer Unit
Upgrade Milton Keynes

Need a consumer unit upgrade in Milton Keynes? C-Lec Electrical replaces outdated fuse boards with modern, compliant 18th Edition units. Surge protection plus certificate included on every install.

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Standard: 18th Edition Metal Boards
Certified: NAPIT, Part P, Building Control
Areas: Milton Keynes & Bedfordshire
At a glance

A consumer unit upgrade in Milton Keynes from C-Lec Electrical replaces your outdated fuse board with a modern 18th Edition metal consumer unit. Every install includes surge protection, full RCD or RCBO protection, an Electrical Installation Certificate plus Building Control notification. Standard dual RCD boards start from £650 ex VAT, full RCBO from £750 ex VAT and ultimate AFDD plus RCBO from £1,100 ex VAT. Most jobs are completed in 3 to 5 hours with minimal disruption.

Why Milton Keynes homes upgrade

Four figures
worth knowing

These are the standards every modern domestic consumer unit must meet under BS 7671 plus Part P of the Building Regulations.

3-5hrs

Typical Install Time

Most consumer unit upgrades in Milton Keynes are completed in a single visit. We minimise disruption then test, certify plus tidy up before we leave.

2016

Metal Mandatory

Since the 2016 amendment to BS 7671, every new domestic consumer unit must be a non-combustible metal enclosure. Plastic boards are no longer compliant for new installs.

25yrs

Typical Lifespan

A modern metal RCBO board fitted to BS 7671 typically serves a Milton Keynes property reliably for 25 to 30 years before replacement is sensible.

Part P

Notifiable Work

Installing or replacing a consumer unit is always notifiable. It must be done by a registered electrician then certified plus notified to Building Control.

Choose your protection level

Three packages
fixed pricing

Every package includes 18th Edition compliance, surge protection, NAPIT certification plus Building Control notification. The choice comes down to how each circuit is protected plus how many circuits you want individually isolated.

Standard

Dual RCD Board

£650ex VAT

Two RCDs protect groups of circuits. Good protection at an affordable price for homes wanting BS 7671 compliance without going to full individual protection.

  • RCD Protection
  • 18th Edition Compliant
  • Surge Protection
  • NAPIT Certificate
  • Building Control Notice
8-Way Board
Premium

Full RCBO Board

£750ex VAT

Each circuit individually protected. One trip affects one circuit only. The modern recommended standard for new installs in 2026.

  • Individual Circuit Protection
  • Surge Protection
  • Easy Fault Finding
  • 1 Trip = 1 Circuit
  • NAPIT Certificate
8-Way Board
Ultimate Safety

AFDD + RCBO Board

£1,100ex VAT

Arc fault detection plus individual RCBO protection. Maximum fire prevention. Recommended for HMOs, properties with vulnerable occupants plus high-risk installs.

  • Arc Fault Detection
  • Surge Protection
  • Best Fire Protection
  • Individual Protection
  • NAPIT Certificate
8-Way Board
Do I need a fuse board upgrade?

Common reasons Milton Keynes homes upgrade

Your consumer unit is the brain of your home electrics. It sits between the incoming meter supply plus every circuit in the property, carrying out three jobs at once: switching the supply on or off, protecting against faults plus distributing power to lights, sockets, cookers, showers plus EV chargers. When the board is outdated, every one of those jobs is compromised. You might need a new consumer unit if:

  • You still have an old fuse wire board or rewireable fuses
  • Your current unit has no RCD protection on any circuit
  • You are adding a new circuit such as an EV charger, hot tub or extension
  • Your lights or sockets keep tripping plus resetting
  • You are selling or letting a property in Milton Keynes
  • Your recent EICR flagged issues with the fuse board (typically C2 coded)
  • The board is plastic plus over 10 years old
  • There is visible damage, scorching or corrosion present

If you are unsure, we can inspect plus advise before carrying out any work. A landlord EICR or a property sale survey is the most common trigger we see across Milton Keynes plus Bedford homes.

The 2016 metal enclosure rule

The board itself is now almost always made of steel. Since the 2016 amendment to BS 7671, all domestic consumer units must have a non-combustible enclosure. That ruled out the older plastic units which had been a known fire risk in real-world installs. Plastic boards are still legal where already installed plus passing on EICR. A like-for-like replacement of a plastic board with another plastic board is not compliant on a new install. Every consumer unit C-Lec Electrical fits in Milton Keynes is a steel enclosure to the latest standard.

Why this matters for landlords

Since June 2020, all rental properties in England must hold a satisfactory Electrical Installation Condition Report (EICR) renewed every five years. An outdated consumer unit, especially a plastic board with no RCD protection or one wired in rewireable fuses, is one of the most common reasons a Milton Keynes EICR comes back unsatisfactory. A C2 code on the fuse board means the report is failed plus the property cannot legally be let until remediated. A consumer unit upgrade resolves the issue plus issues a fresh EIC alongside.

UK regulatory source check. The standards referenced here come from BS 7671:2018+A2:2022 (the 18th Edition Wiring Regulations) published by the IET plus BSI. The metal enclosure requirement was introduced in the third amendment to the 17th Edition (2016). Compliance is enforced under Part P of the Building Regulations. C-Lec Electrical is a NAPIT registered installer covering Milton Keynes, Bedford plus the surrounding Bedfordshire area.
Quote to certificate

How our consumer
unit installation works

Trusted consumer unit installations in Milton Keynes from quote to certificate. Six steps, one day on site, full compliance package handled.

01

Site Visit

Free site visit to assess your current setup plus requirements.

02

Quotation

Clear, no obligation quotation provided in writing.

03

Installation

Install completed within 3 to 5 hours on the agreed day.

04

Testing

Full BS 7671 testing carried out to ensure safety plus compliance.

05

Certification

EIC issued plus Building Control notified through NAPIT.

06

Invoice

Invoice provided once work is finished plus all paperwork delivered.

Old vs new

Modern metal board vs
older plastic board

If your existing board is plastic plus more than 10 years old, the case for upgrading is straightforward. The differences are not cosmetic.

Modern metal board

Compliant 2026 standard

  • ✓
    Steel enclosure contains internal faults. Required on every new install since 2016.
  • ✓
    RCBO protection on each circuit means a fault only affects one circuit not half the house.
  • ✓
    SPD plus AFDD ready with space allocated for surge plus arc fault protection.
  • ✓
    EV plus solar ready with capacity for the modern household load profile.
  • ✓
    25 to 30 year service life expectation when fitted to BS 7671.
Older plastic board

Pre-2016 install

  • ✗
    Plastic enclosure can support combustion. The reason the regulation was changed in 2016.
  • ✗
    Single faults take out half the house on dual RCD boards. One fault, lots of circuits offline.
  • ✗
    No SPD or AFDD provision on most older boards. Limited surge plus arc fault protection.
  • ●
    May still pass an EICR if no separate safety issue is present. Not automatically illegal.
  • ●
    Likely to be flagged on property sale or new tenancy regardless of EICR result.
Ready to upgrade?

What every C-Lec
install includes

We are NAPIT Approved Contractors, fully insured plus trusted across Milton Keynes for our clean, professional plus regulation-compliant electrical work. Every consumer unit upgrade includes the full compliance package as standard.

Fully Certified

Part P compliant install carried out by NAPIT registered electricians. EIC issued plus Building Control notified for every job, no exceptions.

Neat Installation

Clean, efficient install with minimal disruption to your home. Cabling routed properly, surfaces protected plus the area left clean before we leave.

Testing Included

Full BS 7671 testing carried out on every circuit after install. Insulation resistance, earth continuity, RCD trip times plus polarity all checked plus recorded.

Fast Turnaround

Most installs completed in 3 to 5 hours on a single day. Minimal disruption plus you have full power back the same evening.

Ideal For All Properties

Suitable for home upgrades, rentals or property sales. Trusted by homeowners, landlords plus developers across Milton Keynes plus Bedfordshire.

Full Paperwork

Electrical Installation Certificate plus Building Control notification handed over on completion. Everything you need for sale, EICR plus insurance.

Before booking an upgrade, it is worth understanding what your existing board is plus what protective devices are inside it. Our complete Consumer Unit Guide covers everything from board types plus RCBOs through to landlord requirements plus BS 7671 wiring regulations in plain English.

Learn before you book

Read the
Consumer Unit Guide

Every common homeowner question answered in one place. Board types, protective devices, regulation requirements, EICR triggers plus when an upgrade is genuinely needed.

Read the Guide Call Today
Where we work

Areas covered
across Milton Keynes

We install consumer units across Milton Keynes plus the surrounding Bedfordshire area. If you are nearby plus your area is not listed, just call. We almost certainly cover it.

Milton Keynes Central
Newport Pagnell
Bletchley
Wolverton
Stony Stratford
Woburn Sands
Bedford
Olney
Fenny Stratford
Frequently asked

Consumer unit upgrade FAQs

How much does a consumer unit upgrade cost in Milton Keynes?
Our standard dual RCD board starts from £650 ex VAT for an 8-way unit. A full RCBO board starts from £750 ex VAT. The ultimate AFDD plus RCBO option starts from £1,100 ex VAT. All prices include parts, labour, full BS 7671 testing, the Electrical Installation Certificate plus Building Control notification through NAPIT. Remedial work uncovered during testing such as faulty cabling or missing bonding is quoted separately.
How long does the install take?
Most consumer unit upgrades in Milton Keynes are completed in 3 to 5 hours on a single visit. We isolate the supply, swap the board, terminate every circuit, carry out full testing then issue paperwork before we leave. You normally have full power back the same evening.
Do I need a consumer unit upgrade if my board is plastic?
Not automatically. An existing plastic consumer unit is not illegal just because it is plastic. It only fails an EICR if there is a separate safety issue such as no RCD protection, scorched terminations or missing bonding. However any new install or full replacement must use a non-combustible metal enclosure under BS 7671. Many Milton Keynes homeowners choose to upgrade plastic boards proactively before a property sale or new tenancy.
Can I install a consumer unit myself?
No. Replacing or installing a consumer unit is notifiable work under Part P of the Building Regulations in England plus Wales. It must be carried out by a registered electrician then certified with an Electrical Installation Certificate plus a Building Control notice. Doing it yourself invalidates home insurance plus will fail any future EICR or property sale check.
Will my consumer unit upgrade come with certification?
Yes. Every install includes a full Electrical Installation Certificate (EIC) plus Building Control notification submitted through our NAPIT registration. You will need both documents for property sale, EICR renewal plus insurance claims. We hand the paperwork over on completion.
What is the difference between an RCD and an RCBO?
An RCD (Residual Current Device) trips on earth fault, providing 30mA shock protection across a bank of circuits. An RCBO is a combined RCD plus MCB on a single circuit. With RCBOs, each circuit has its own dedicated protection so a fault only knocks out one circuit not half the house. Full RCBO boards are now the modern standard on new installs.
Do I need an AFDD board?
AFDDs (Arc Fault Detection Devices) are now a BS 7671 recommendation rather than a hard requirement on most domestic installs. They are particularly recommended for HMOs, properties with vulnerable occupants, sleeping accommodation plus high-risk environments. They detect arcing faults that traditional MCBs plus RCDs cannot, giving the highest level of fire prevention currently available.
I am adding an EV charger. Do I need a consumer unit upgrade?
Often yes. EV chargers add a 7kW circuit which many older boards do not have spare capacity for plus require dedicated Type A or Type B RCD protection at the charger or on the supplying circuit. If your existing board is full, plastic or pre-2016, an upgrade alongside the EV charger install is usually the most cost effective route plus future-proofs the property for solar, batteries or a second charger later.
Will my old fuse board pass an EICR?
It depends on the type of board plus its condition. A plastic dual RCD board in good order with no observed defects can still pass. A board with rewireable fuses, no RCD protection, scorching, missing bonding or visible damage will normally come back with C2 codes meaning the EICR is unsatisfactory. If you are a Milton Keynes landlord, an unsatisfactory EICR means the property cannot legally be let until remediated.
Book your upgrade

Consumer Unit Upgrades
in Milton Keynes

Don't leave your property's safety to chance. Upgrade your fuse board with a certified, professional install from C-Lec Electrical. Free quote, NAPIT certified, full compliance package handled in one day.

Call Today Enquire Online