SJI Electrical fits modern consumer units in Penilee — a Glasgow scheme on the Renfrewshire boundary, with Ralston in Paisley directly to the south.
The consumer unit is the central control point of your property's electrical system, and replacing an outdated board is one of the most straightforward upgrades a home can have.
Three quick questions, then it goes straight to SJI on WhatsApp.
Penilee was laid out as a planned community for workers at the Hillington Industrial Estate, and came into Glasgow with the 1938 boundary extension. Because so much of it went up as one coordinated scheme rather than piecemeal, properties here often share a similar starting point — which is why a neighbour mentioning their board is what prompts a lot of enquiries in a district like this one.
Set against that, the district is currently undergoing residential redevelopment, so newer homes with modern boards now sit alongside the original scheme housing. The only reliable way to know which category yours falls into is to have someone look at it, and we'll happily give you a straight answer either way.
Every upgrade follows the same structured sequence, from safe isolation through to certification.

The supply is safely isolated and the existing circuits inspected before any work starts.

The existing board comes out once the inspection is done and the plan is agreed with you.

A modern unit is installed, improving protection, capacity and circuit organisation.
Also part of a full rewire →
Full system testing is carried out and certification issued once the upgrade is complete.
EICR & landlord certificates →Most fuse board upgrade installations are completed within one day, depending on the property. We confirm timing clearly when we quote, so you know what the day looks like before we arrive rather than after. Where a property's construction affects how the work is best approached — something worth checking in Penilee, given the scheme's non-standard wartime building materials — we'll flag that at the inspection stage, not on the day.
You'll know what's happening at every stage before it happens.
Send us your Penilee postcode and what's prompting the upgrade.
Inspection of the existing installation, with the findings explained plainly.
A written quotation, with no obligation to go ahead.
An installation date arranged to suit you and the property.
Professional installation, full system testing, and certification issued.
Most installations are completed within one day, depending on the property. We'll confirm the timing when we quote.
It can affect how the work is best approached. Many of the scheme's flats were built from prefabricated materials such as foamslag because of wartime material shortages, so we check the property at the inspection stage rather than assuming.
Newer homes generally have modern boards already. Where people do get in touch is when they need additional circuits, more capacity, or work as part of a renovation. We'll tell you if nothing needs doing.
The supply is safely isolated before any work begins, so there is a period without power on the day. Full system testing is carried out before the property is handed back.
Very often it can be done on its own. If the inspection shows the wiring behind it also needs attention we'll say so, and explain why, rather than fitting a new board over an old problem.
Yes. Every upgrade includes full system testing, with certification issued once the work is complete.
If your consumer unit is outdated, or you're adding circuits during a renovation in Penilee, Paisley or the wider Renfrewshire and Glasgow area, contact SJI Electrical. Send your postcode and a short description and we'll confirm the next step.