Need reliable 3-phase power for your business?
3-Phase Power & Industrial Electrics
When your business depends on heavy machinery, 3-phase power isn’t a luxury — it’s what keeps everything running. Whether you’re connecting new plant to an existing supply, upgrading a workshop’s distribution board, or bringing a site up to full 3-phase capacity, we’ve got the hands-on experience to do it properly. We work methodically and communicate clearly, taking the technical complexity out of the process so you always know what’s happening and why.
Kept Informed, Every Step
The Right Kit, Done Properly
Experience That Fits the Job
On Time, With Minimum Fuss
What We Offer
- Three-Phase Power Installation
- Distribution Board Upgrades & Feeds
- Industrial Machinery Hookups
- Plant & Workshop Wiring
- Load Balancing & Phase Assessment
- BS Certified Installations
- NAPIT Approved Electricians
- Full Testing & Certification
- Clean & Tidy Workmanship
Got a question about 3-phase power?
Fill in your details below and we’ll be back in touch – usually within the hour. Whether you need a quote, some free advice, or just want to talk through what your installation might involve, we’re happy to help.
Properties We Serve
Manufacturing
Factories, fabrication units, CNC workshops, machine shops, processing plants
Construction
Builder's yards, plant hire depots, site compounds, heavy-load site offices
Agriculture
Farms, grain stores, agricultural workshops, large-scale irrigation and pump systems
Automotive
Garages, MOT centres, vehicle workshops, bodyshops, fleet maintenance facilities
Marine
Boatyards, chandleries, marina facilities, fishery units and coastal processing operations
Hospitality
Commercial kitchens, large event venues, leisure centres, high-demand food and retail premises
Top Questions & Answers
Here are the top questions we’re frequently asked about 3-phase power installations…
Three-phase power delivers electricity across three separate conductors at once, which makes it far more efficient for running high-demand equipment than a standard single-phase supply. If your business relies on heavy electric motors, industrial compressors, CNC machinery, arc welding equipment, or significant commercial refrigeration, there’s a strong chance 3-phase either already makes sense or would make a noticeable difference to how your electrical system holds up under load. We’ll assess your setup honestly and advise whether an upgrade would genuinely benefit your operation.
Yes, in most cases. If a 3-phase supply is already on-site, connecting new plant or machinery generally comes down to checking that the existing distribution board has sufficient spare capacity and that the correct cable sizing and protection devices are in place for the new circuit. We carry out a thorough check of your current installation before work begins so we can identify any shortfalls at that stage – it’s far better to deal with those before the machinery arrives than after it’s already in position.
It really depends on the scope. A single machinery hookup on an existing supply can often be completed in a day, whereas a full distribution board upgrade or a new 3-phase supply installation at a larger premises might take several days. We’ll give you a realistic timeframe during the site survey and keep you updated if anything changes that estimate once the work is underway.
Yes – all electrical work of this nature must comply with BS (the IET Wiring Regulations) and be properly documented on completion. We provide a full Electrical Installation Certificate (EIC) once the job’s done, and where notification to building control is required, we handle that through our NAPIT registration so you don’t have to deal with the compliance side of things yourself.
We always try to plan the more disruptive parts of the installation – particularly any periods where the supply needs to be isolated – outside of your core hours. It’s one of the first things we discuss during the site survey, so we can factor your schedule into the project plan from the outset rather than trying to accommodate it as an afterthought.
WHAT OUR CUSTOMERS SAY

Our 3-Phase Installation Process
BEFORE
Site Survey We visit your site to assess existing power demands, infrastructure layout, and what the new installation needs to achieve.
Load Review Your current supply capacity and machinery requirements are carefully reviewed to make sure the proposed system is correctly specified.
Fixed Dates We agree start dates that work around your operations, scheduling any power outages to cause the least possible disruption.
DURING
Cable Works Heavy-duty cabling is installed to the correct rating along agreed routes, with the working environment kept clean and tidy throughout.
Board Feeds Distribution boards are upgraded or installed to handle the full 3-phase load, with all circuits correctly labelled and protected.
Hookup Work Each piece of plant is connected in sequence, with phase rotation confirmed and load balance verified before we move on.
AFTER
Test & Sign All circuits are tested to BS 7671 standards and a full Electrical Installation Certificate is issued before commissioning begins.
Show & Tell We walk your team through the completed installation, covering how the system works and what to look out for going forward.
Our Support We’re here after the job’s done for any queries, changes, or additions – easy to reach when you need us.
10 Reasons Businesses Choose Wave Electrical Solutions for Solar & Battery
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Hands-On Industrial Experience
Our team has real, practical experience with high-demand 3-phase installations, from heavy plant hookups to full workshop rewires, and we take that responsibility seriously. -
Correct Specification from the Start
We assess your load requirements properly before any work begins, so the system we design is genuinely right for the demands being placed on it. -
Clear Communication Throughout
We keep you informed at every stage in plain language - no jargon, no confusion, and no surprises when it comes to costs or timelines. -
Planned Around Your Operations
We schedule work to suit your hours wherever possible, managing any planned outages carefully to keep disruption to your business to a minimum. -
Quality Components and Workmanship
We use correctly rated materials throughout and install everything to the standard you'd expect from a team that takes genuine pride in the work. -
Fully Compliant and Certified
All work complies with BS and comes with full certification on completion - we handle the compliance and documentation so you don't have to. -
Transparent Pricing, No Hidden Costs
Our quotes are clear and detailed upfront, so you know exactly what the job will cost before any work begins. -
NAPIT Approved Electricians
We're fully approved and accredited, giving you confidence that the work meets the regulatory standards that matter for your business and your insurers. -
Reliable Long-Term Performance
A well-specified, properly installed 3-phase system should give years of dependable service - and that's the standard we hold every job to. -
Ongoing Aftercare and Support
We don't disappear once the job's signed off - we're available for future changes, additions, or queries, and we're straightforward to get hold of when you need us.