Fuse Board Upgradesin Sutton
TH Electricians LTD provides professional fuse board and consumer unit upgrades based in Sutton and working across Surrey, nearby Croydon, and the wider Greater London area.
The consumer unit is the central control point of your property’s electrical system. If it is outdated, poorly configured, or no longer suited to modern electrical demand, upgrading it can significantly improve safety, reliability, and future capacity.
With many years of experience, we assess existing installations carefully and provide clear, honest advice before recommending any upgrade work.
What Is a Consumer Unit?
A consumer unit (commonly referred to as a fuse board) distributes electricity safely throughout your property. It protects circuits from overload and faults, helping to reduce the risk of electrical hazards.
Older fuse boards often lack the safety features found in modern consumer units. Many properties in Sutton and across Surrey still have installations that were fitted decades ago and may not meet current expectations.
Upgrading to a modern consumer unit improves overall system protection and reliability.
Scroll. Watch an old fuse box go.
Keep scrollingA wooden-backed fuse box with rewireable fuses.
When Should a Fuse Board Be Upgraded?
Not every property requires an upgrade. We inspect your current installation and advise honestly whether it is necessary.
A consumer unit upgrade may be recommended when:
- The property still has an older-style fuse board
- Electrical faults or frequent tripping occur
- Renovation or extension work is being carried out
- The property is being prepared for rental
- Additional circuits are required
- You want improved safety protection
See the difference we make.
Seven services, each shown from the problem to the finished job. These are illustrations of typical work; photos from our own jobs are further down the page.
House Rewires
Chased walls and loose cables to a finished, certified room.
Fuse Board Upgrades
Old rewireable fuses out, a modern RCBO consumer unit in.
Lighting Upgrades
One flickering tube replaced with layered LED lighting.
Emergency Electrician
Power out, fault found, lights back on.
CCTV Installation
Discreet cameras and a security light, cables hidden.
Office Fit Outs
A stripped shell to lit, powered desks ready for staff.
Shop Fit Outs
An empty unit turned into a lit, trading shop.
Benefits of a Modern Consumer Unit
Upgrading your fuse board can provide:
- Improved circuit protection
- Increased capacity for additional appliances
- Enhanced electrical safety
- Improved compliance with modern standards
- Better organisation of circuits
- Greater reliability
A modern consumer unit also provides clearer circuit identification, making future electrical work easier and more structured.
What’s Included in a Fuse Board Upgrade?
All installations are completed professionally, safely, and in accordance with current regulations.
A typical consumer unit upgrade includes:
- Safe isolation of the electrical supply
- Inspection of existing circuits
- Removal of the existing fuse board
- Full system testing
- Installation of a modern consumer unit
- Issuing of certification
Fuse Board Upgrades During Renovations
Consumer unit upgrades are often completed alongside renovation projects.
If you are:
- Extending your property
- Adding new circuits
- Upgrading kitchen electrics
- Installing higher-demand appliances
It may be practical to upgrade the fuse board at the same time.
We advise based on the overall electrical demand and long-term plans for the property.
Minimising Disruption During Installation
Most consumer unit upgrades can be completed within a single day, depending on the property.
We focus on:
- Clear communication before work begins
- Advising on temporary power downtime
- Keeping the work area organised
- Leaving the installation clean and tidy
We explain expected timeframes clearly before starting.
Safety & Certification
We prioritise safety and reliability above all else.
Installed by qualified electricians
Properly certified
Fully inspected and tested
Completed to current standards
Why Choose TH Electricians LTD for Fuse Board Upgrades in Sutton
We do not recommend unnecessary upgrades — but when an upgrade is required, it must be completed correctly.
- Many years of electrical experience
- High standards of installation
- Based in Sutton with local property knowledge
- Fully tested and certified work
- Honest, transparent advice
- Clean and professional completion
Electrical services in Sutton & surrounding areas.
Planned domestic work, commercial installations and urgent faults. Pick a circuit.
IllustrationWay 01HomesHouse Rewires
Full and partial rewires planned room by room, with the least disruption we can manage.
IllustrationWay 02HomesFuse Board Upgrades
Consumer unit replacements with RCD and RCBO protection, tested and certified.
Our jobWay 03Homes · LetsEICR Safety Reports
Electrical Installation Condition Reports for landlords, buyers, homeowners and businesses.
Our jobWay 04HomesLighting & Sockets
LED downlights, pendants, smart lighting and extra sockets during a renovation.
IllustrationWay 05UrgentEmergency Electrician
Power loss, a board that won't reset, burning smells or sparks. Call us straight away.
Our jobWay 06Homes · BusinessCCTV Installation
Planned, fitted and configured by qualified electricians. No DIY kits, no botched wiring.
Our jobWay 07BusinessCommercial Contractor
Installations, LED upgrades, power distribution, data cabling and planned maintenance.
IllustrationWay 08BusinessOffice & Shop Fit Outs
Full electrical fit-outs for offices and retail units, scheduled around your opening date.
Not sure which service you need? Contact us and we'll point you in the right direction. We also cover shop fit outs in Sutton.
Our Fuse Board Upgrade Process
Inspection of existing installation
Clear explanation of findings
Written quotation provided
Agreed installation date
Professional installation
Testing and certification
Initial enquiry
We keep communication straightforward and transparent throughout.
Serving Sutton, Surrey & Nearby Croydon
We are based in Sutton and provide consumer unit upgrade services across:
- Sutton
- Nearby Croydon areas
- Surrey
- Surrounding Greater London locations
If you are unsure whether we cover your postcode, contact us and we will confirm.
Fuse Board Upgrade FAQs – Sutton
Answers to common questions about Fuse Board Upgrade services.
How long does a fuse board upgrade take?
Most installations are completed within one day, depending on the property.
Will the power be off during installation?
Yes, for part of the day while the old board is removed and the new consumer unit is fitted and tested. We tell you how long to expect beforehand.
Do all older fuse boards need replacing?
No. Not every property requires an upgrade. We inspect your current installation and advise honestly.
Is certification provided?
Yes. Every consumer unit upgrade is tested and certified on completion, and the certificate is provided without you having to ask.
Is it disruptive?
Very little. Most installations are completed within one day, and we leave the area clean and tidy.
Photos from our own jobs.
Control panels, testing, sockets and security lighting. Every photo here was taken on a TH Electricians job, not pulled from a stock library.
Certified & Professional Electrical Contractor
Trust matters when hiring an electrician. Anyone can claim to be qualified — we can prove it.
All work is carried out by fully qualified electricians. Relevant certifications, test reports, and compliance documentation are provided on completion of every job — without you having to ask.
Read our customers’ reviews on Checkatrade.
Request a Fuse Board Upgrade Quote in Sutton
If you believe your property may require a consumer unit upgrade in Sutton, Surrey, or nearby Croydon, contact TH Electricians LTD for clear advice and a no-obligation quote.
Read what our customers say about us on Checkatrade.