Compliant consumer unit replacements and modern fuse box upgrades for homes and commercial premises. Speak directly with James Leslie to assess your existing installation and get a clear, upfront quote before any work starts.
A photo of the existing fuse box is often all it takes to price the job.
Replies within an hour, 8am–6pm
Local to Brechin, Angus, Scotland
Brechin Sparks is James Leslie, working from a base in Brechin and covering the DD9 postcode area, Montrose, Forfar, Arbroath, Edzell and Dundee within an approximate 40-mile radius.
One point of contact for the assessment, the replacement and the certificate. If testing uncovers existing wiring faults, James explains them and agrees the scope before going further.
“James was very polite and sent over the quote immediately after the call and came out the same day in the early evening.”
“He couldn't of been more helpful and still only took what he quoted for, even though it was a bigger job than expected. Definitely recommend.”
“Arrived within an hour of my call, as he said he would. Fixed the problem same afternoon, and rate was extremely reasonable!”
“They also give decent price for the job and the work done will be using James again, he is also very polite and very helpful too me.”
“Fast response during a weekend, put in a temporary fix so we got power back. Excellent service.”
“Very professional and courteous. Highly recommend him.”
Fuse box and consumer unit replacement for homes, rental properties and commercial premises, from a base in Brechin covering an approximate 40-mile radius.
Every replacement is inspected, tested and recorded against the 18th Edition wiring regulations, and an Electrical Installation Certificate is issued for the work.
40 years of electrical engineering experience across military, municipal and private sectors. James served as an RAF electrical engineer and as a retained firefighter at Brechin Fire Station.
Public liability cover across domestic, commercial and agricultural properties, with costs agreed before any work begins.
Read more about James Leslie and how Brechin Sparks approaches electrical work, from the first enquiry to explaining the completed job.
BS 7671 wiring regulations
Level 3 Award · BS 7671 wiring regulations
Cover for electrical work
Local service across a 40-mile radius
Engineering experience behind the advice
A background in serving the community
When to upgrade
Your consumer unit is the main safety centre of your property’s electrical system. Older boards with rewireable fuses or basic dual-RCD protection often lack the features needed for today’s high-demand appliances, EV chargers or heat pumps. None of the signs below automatically means replacement is necessary — the condition and suitability of the installation determine the work required.
Older boards often lack the protection expected of a modern installation.
Buzzing, crackling or humming from a fuse board needs urgent assessment.
EV chargers, heat pumps and electric showers change what the board has to carry.
C1, C2 or FI observations against the board are a common trigger for replacement.
Not sure what you have? Send a photo of the board.
Get a quote
An older board with rewireable fuses or a single shared RCD cannot offer the protection below. These are the devices a replacement board can carry, and what each one does and does not do.
BS 7671 requires domestic consumer units to have a non-combustible enclosure, or be enclosed in a suitable non-combustible cabinet. Steel is a common solution. This helps limit fire spread but does not eliminate all fire risks.
RCBOs protect separate circuits, so a fault on one circuit can be disconnected without switching off the others sharing an RCD. Other faults or upstream devices can still interrupt a wider supply.
SPDs can reduce damage from transient overvoltages affecting electronics, boilers, computers and appliances. Their protection has limits and they do not guarantee protection from every surge or lightning event.
Where required or appropriate, Arc Fault Detection Devices detect certain types of dangerous arcing and disconnect the affected circuit. They supplement other protective measures rather than guaranteeing that a fire cannot occur.
Guide prices
Prices depend on the number of electrical circuits in your property, earthing and bonding condition, and the protective equipment specified (RCBOs / SPDs). All costs are agreed upon before work begins.
Number of circuits (ways), board type, RCBO/SPD protection, earthing bonding. Assessed by reviewing existing fuse board photos or property details.
Access to main gas and water service pipework for earth bonding. Assessed during the pre-replacement inspection.
Pre-existing circuit faults, damaged accessories, or earthing issues. Quoted for your approval following initial testing.
Indicative guide prices. The final scope and cost are agreed before work begins. If pre-existing wiring faults such as poor earthing or damaged cables are discovered during testing, James explains the findings and agrees any necessary remedial work with you before proceeding.
See the full guide to electrical work prices for other jobs.
Replacing your consumer unit updates the backbone of your electrical installation. It is a systematic electrical procedure that includes testing your property’s existing fixed wiring:
Assessing main earthing, bonding conductors (water and gas services), and existing circuit conditions.
Disconnecting the main electrical supply to safely remove the legacy fuse board.
Mounting the non-combustible enclosure, fitting RCBOs, main switch, and Surge Protection Device (SPD).
Testing every circuit for insulation resistance, earth continuity, and correct tripping speeds.
Test results recorded and the paperwork handed over on completion.
A replacement is often planned alongside full or partial rewiring or an electrical safety inspection.
On completion
Paperwork and records handed over when the work is signed off.
Official safety documentation confirming compliance with BS 7671 (18th Edition) regulations. Any applicable building warrant or approved certification requirements are assessed separately.
Clear, professional labelling on the consumer unit so you know exactly which switch controls each room.
Complete records of pre- and post-installation tests for your property records.
Based in Brechin, Angus, Scotland, covering the DD9 postcode area and the wider Angus towns within an approximate 40-mile radius. Give James your postcode to confirm availability.
From the town centre to Trinity and Cookston. Our base, so usually the quickest to arrange.
Homes, rentals and business premises across the Angus towns.
Replacements and remedial work, including surrounding rural properties.
Enquiries welcome for houses, flats and rented properties.
Call with your postcode to check coverage within the approximate 40-mile service area.
Full list of towns on the areas covered page.
An older fuse box, missing RCD protection, unusual noises, repeated tripping or a proposed new high-power circuit are reasons to arrange an assessment. They do not automatically mean replacement is necessary; the condition and suitability of the installation determine the work required.
Power isolation typically lasts between 4 to 8 hours depending on the number of circuits and the condition of the existing wiring. James will inform you in advance so you can plan around the outage.
Not necessarily. Replacing a consumer unit upgrades the central control board. Testing can reveal existing wiring faults that need attention. James explains any repairs and agrees their scope and cost before proceeding.
Yes. You will receive an Electrical Installation Certificate (EIC) recording the installation work, inspection and test results. Its scope and any limitations are stated; it does not certify that every unrelated part of an older installation meets all current requirements.
Work out what tripped (RCD, breaker or main switch), what the pattern means, the safe unplug test to find a faulty appliance, and when to stop and call.
Give your address, the problem you are having and how urgent it is. James assesses earthing and bonding before confirming a price.
Call 01356 235858