Pre-change testing
Every existing circuit tested before we quote, so faults are found before the board comes off the wall.
Consumer Units · South Coast & London
Consumer Unit Upgrades
Old fuse boxes replaced with modern metal-clad consumer units — individual RCBO protection, surge protection, full testing and certification.
Free, no-obligation quotes · Typical response within 24 hours
Why choose us
LJS Electrical Contractors
Choose LJS Electrical Contractors for expert, reliable service, dedicated to your satisfaction and safety.
Expertise
Our team's extensive industry knowledge ensures top-quality work and reliable solutions.
Customer Satisfaction
Your needs are our priority, ensuring a positive experience every time.
Reliability
We're punctual, transparent, and dedicated to getting it right the first time.
Safety
We strictly adhere to regulations, prioritising safety in every aspect of our work.
NAPIT Registered Electrical Contractors
LJS Electrical Contractors Ltd is NAPIT registered — independently assessed and government-approved to self-certify electrical work under Part P Building Regulations. Every job is tested, certificated and fully compliant with BS 7671.
South Coast & London's most trusted electricians
A real board we installed
This FuseBox unit was fitted on a recent job — every circuit on its own RCBO, surge protection fitted, cables dressed neatly and every way clearly labelled so the next person to open it knows exactly what they're looking at.
Get a Free QuoteSouth Coast & London's most trusted electricians
Why RCBOs beat a split-load board
On an older split-load board one earth fault takes out half the house. With an RCBO per circuit the fault is isolated to that circuit alone — the freezer keeps running, the lights stay on, and finding the problem takes minutes instead of an afternoon.
Get a Free QuoteWhat's included
The full scope of work
Everything we cover as standard — no hidden extras, no surprises after the quote is signed.
New metal consumer unit
Non-combustible enclosure with correctly rated main switch and circuit protection.
RCBO protection
Individual RCBO per circuit, so a fault on one circuit doesn't take out the rest of the property.
Surge protection
Type 2 SPD fitted to protect sensitive appliances, controls and EV charging equipment.
Bonding & earthing
Main protective bonding to gas and water verified and upgraded to the correct size.
Certificate & labelling
Clear circuit schedule, Electrical Installation Certificate and building control notification.
Our approach
How a board change runs
- 1
Inspection & test
We test the existing circuits and check bonding, earthing and supply arrangement before quoting.
- 2
Fixed written quote
Board specification, any remedial work found, and the price — agreed before we book the date.
- 3
Change day
Supply off for a few hours, new board installed, circuits reconnected, identified and labelled.
- 4
Test & certify
Full testing on every circuit, certificate issued and the work notified under Part P.
Why LJS Electrical Contractors
Built on Reputation, Not Sales Pitches
NAPIT Registered
Independently assessed and approved to self-certify work under Part P.
Qualified Electricians
All work carried out by our own qualified team — never subcontracted out.
Certified & Tested
Electrical Installation Certificate or Minor Works Certificate issued on completion.
Fixed, Transparent Pricing
Detailed written quotes. No deposits required. The price we quote is the price you pay.
Why Customers Rate Us 5.0 on Google
5.057 Google reviewsCD
Collette Dolan
Homeowner
Posted on Google
"I have recently moved to the area and needed an extensive amount of electrical work done to the property. I was recommended LJS and am super happy with Lee and Louis. Professional, competitive, knowledgeable and friendly."
AP
Andrew Price
Homeowner
Posted on Google
"Lee and his team did a great job fitting new outside lights around the house and adding lights in our decking and raised bed. We needed lights suitable for a marine environment and Lee found the right components with no fuss."
KR
Kate Rowland
Homeowner
Posted on Google
"Lee and his team are fantastic! Communication was great and the work was done to an excellent standard. Lee was also very accommodating to fit us in before Christmas which was hugely appreciated. We couldn't be happier."
Get in touch
Request a quote for consumer unit upgrades
Tell us a little about the job and one of our qualified electricians will come back to you with a clear, itemised price — usually the same working day.
- Free, no-obligation quotations
- Fully qualified and insured electricians
- Covering the South Coast & London
Frequently asked
Questions about consumer unit upgrades
Need an Electrician?
Whether it's a nuisance trip, an EICR for your rental, a new charger or a full rewire — tell us what you need and we'll come back to you with a clear, fixed price quote within 24 hours.