Commercial Electrical Installations
Safe, practical installations for commercial premises.
Every business needs electrical systems it can rely on. At Volta Spark, we handle installations of all sizes — from fitting out a new shop or office to installing specialist equipment, adding circuits, or upgrading your power capacity.
We focus on the practical, day-to-day electrical work that keeps commercial spaces in south-west London running smoothly. Whether you’re moving into new premises, expanding your business, or need more electrical capacity, we’ll make sure your installation is safe, compliant, and built for long-term reliability.
Full electrical fit-outs
Complete installations for new shops, offices, or workshops.
Distribution boards & circuits
Safe, well-planned power distribution for reliable performance.
Sockets & power points
Extra outlets installed where your staff and equipment need them most.
Specialist equipment wiring
Connections for heavy machinery, catering equipment, and other commercial tools.
Lighting installations
Everyday lighting installed as part of wider electrical work.
Upgrades & rewiring
Modernise outdated wiring to meet today’s safety standards.
Why proper installations matter
Poorly installed electrics don't just cause inconvenience — they create safety risks and lead to expensive downtime. A professional installation gives you peace of mind.
Stop losing business
Avoid the hidden faults and costly repairs that come from corner-cutting and outdated systems.
Support growth
Future-proof your infrastructure to handle expanded teams, more equipment, and increased power needs.
Compliance made simple
Stay fully aligned with current regulations, making inspections and insurance renewals straightforward.
What makes us different
At Volta Spark, we specialise in commercial installations that are practical, tidy, and built to last.
Commercial specialists
Shops, offices, restaurants, and workshops
Clear advice
No jargon, just straightforward recommendations
Minimal disruption
Scheduled to suit your business
Safe and tid
Installations tested, labelled, and left ready for use
Local support
Serving businesses across south-west London
Questions and Answers
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Q: How do I know if I need a capacity upgrade?
A: Common signs include circuit breakers tripping regularly, lights dimming when equipment starts up, not enough sockets, or if you’re planning to add new high-power equipment. We can assess your system and tell you exactly what you need.
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Q: Will the installation disrupt my business?
A: We plan the work carefully to keep downtime low — often working outside trading hours or in stages so your business keeps running. For major fit-outs, we’ll work with you to find the best schedule.
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Q: What’s involved in a consumer unit upgrade?
A: We replace your old fuseboard with a modern consumer unit and install new wiring to ensure everything works safely and reliably. This prevents issues with old cables causing the new protection devices to trip. The work typically takes one to several days depending on the size of your premises.
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Q: Can you install three-phase power?
A: If your premises already has a three-phase supply from the distribution network, we can install the wiring and equipment to use it. If you don't have three-phase and need it, you'll need to arrange that with your local distribution network operator (DNO) first.
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Q: Can you work on a live business premises?
A: Yes — we isolate circuits safely and plan the work to minimize disruption. For larger jobs, we schedule work in stages or outside your trading hours.
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Q: How much does an electrical installation cost?
A: It depends on the scope — a simple circuit addition is different from a full fit-out. We visit your premises, understand what you need, and give you a clear, detailed quote with no surprises.
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Q: Do you provide certification?
A: We work with trusted external certification companies who can provide the testing, inspection, and certification required for your installation. This can be arranged as part of the project.
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Q: Why can’t you just replace the consumer unit without new wiring?
A: Modern consumer units use sensitive protection devices (RCDs and RCBOs) that can trip on old wiring, even when there’s nothing wrong. Installing new wiring alongside the new consumer unit ensures everything works reliably and you’re not constantly dealing with nuisance tripping.
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Q: What if something goes wrong after the installation?
A: We don’t just install and walk away — we’re here for support, maintenance, and any issues that come up. You’re working with a local business that stands behind its work.
Ready to Power Your Business?
Whether you need a full fit-out, extra capacity, or specialist equipment installed, we’ll design and deliver electrical installations that work for your business.
Let's Talk