SJI Electrical carries out electrical installation and planning for office fit-outs across Johnstone, Renfrewshire and the wider Greater Glasgow area — from a Paisley base.
From desk power to data infrastructure, we plan the electrical side of your workspace properly before any work begins, in step with the rest of your project team.
Three quick questions, then it goes straight to SJI on WhatsApp.
Johnstone's town centre includes office and service premises alongside its shops, with the £14.5m town hall completed in 2015 sitting at the centre of the town's public and commercial life. Whether it's a small office suite or a growing team needing more capacity, we plan the electrical side properly before anything is installed, rather than reacting to problems once desks and partitions are already in place.
Planned properly, from desk power through to the reception area — for new fit-outs and existing offices alike.

Desk power distribution and data infrastructure readiness planned into the layout from the start.

Electrics planned around meeting room requirements and kitchen or breakout areas.

Lighting layouts for working areas and reception or customer-facing spaces, plus upgrades to existing offices.

Additional circuits as teams expand, and dedicated circuits for specialist equipment.
Commercial electrical →Office fit-outs usually involve several trades working to one programme. We fit into that programme rather than working around it, so the electrical work doesn't become the thing everyone else is waiting on. That's as true for a single-room office suite as it is for a full-floor relocation.
That coordination matters as much for a single-office refresh in Johnstone town centre as it does for a full relocation — the electrical plan has to match how the space is actually going to be used, not just how it looks on a layout drawing.
We ensure you understand every stage before work begins.
Tell us about your Johnstone workspace and the fit-out you're planning.
We assess the space and confirm the full scope of electrical work.
All work is clearly scoped, priced and scheduled before starting.
Work carried out alongside builders, joiners and the rest of your project team.
Every installation is tested and certified on completion.
Desk power distribution, data infrastructure readiness, lighting layouts, meeting room requirements, and kitchen or breakout area electrics are all part of the service, planned together rather than as separate add-ons.
Yes. We can add circuits as a team expands, and dedicated circuits for specialist equipment where needed.
Yes. We regularly work alongside builders, project managers, joiners, commercial landlords and interior designers.
Yes. Lighting upgrades and reconfiguration are common requests, whether it's a full relocation or refreshing an existing space.
Yes. Data cabling infrastructure coordination is part of the service, planned alongside the power layout.
Yes. Every installation is tested and certified on completion by qualified electricians.
Where planned in advance, we can discuss scheduling to minimise disruption to a Johnstone office that's still in use during the fit-out.
Planning a new office or refreshing an existing one in Johnstone? Contact SJI Electrical to plan the electrical side properly from the start.