Does your distribution board need an upgrade?

Commercial Distribution Boards & Mains Upgrades

If your electrical infrastructure is struggling to keep pace with how your business operates today, it’s probably time to take a closer look at your distribution board or mains supply. Whether you’re expanding your premises, bringing in new machinery, or planning to install EV chargers, the electrical backbone of your building needs to be up to the job. At Wave Electrical Solutions, we work with commercial and industrial clients to assess, upgrade, and future-proof their electrical distribution systems, keeping everything safe, compliant, and ready for whatever comes next.

Safety and Compliance

An outdated or overloaded distribution board isn't just an inconvenience, it's a genuine safety risk. Deteriorated components, undersized protection devices, and poor labelling are all common findings in older commercial installations, and left unchecked, they can lead to tripped circuits, equipment damage, or worse. Our engineers carry out a thorough assessment of your existing setup before any work begins, identifying exactly what needs to be done to bring your system up to current wiring regulations and make it fit for purpose. Every upgrade we complete is tested and certified, so you have full documentation to satisfy insurers, landlords, or any future inspection.

Built for Capacity, Not Just Today

One of the most common reasons businesses come to us is that their current distribution board simply doesn't have enough capacity for what they're trying to run. Adding new plant equipment, relocating to a larger unit, or fitting EV charging points all place significantly more demand on your mains supply, and if the infrastructure can't handle it, you'll see tripped breakers, voltage drop, and potentially damaged equipment. We'll look at your current load, factor in your growth plans, and design a distribution system with the headroom you actually need, so you're not back in the same position twelve months down the line.

We Work Around You

We put a lot of thought into the planning stage precisely so that the job runs smoothly when we're on site. Before we arrive, we work with you to agree a schedule that fits around your operations, whether that's outside of normal hours, across a weekend, or phased across a couple of visits. Our engineers come prepared, work tidily, and stick to the plan, so you can carry on with business knowing the job's in hand and there won't be any unexpected hold-ups along the way.

Clear Quotes, No Hidden Costs

Getting electrical work quoted can sometimes feel like you're not getting the full picture until the invoice arrives. We do things differently. Before any work starts, we give you a clear, detailed quote that sets out exactly what's included, what the work involves, and what it's going to cost. There are no vague estimates and no unexpected additions at the end of the job. If anything changes once we're on site, we'll always talk to you first. It's a straightforward approach that our customers appreciate, and it means you can plan your project budget with confidence.

What We Offer

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Business Sectors We Serve

Industrial

Factories, warehouses, processing plants, fabrication units

Commercial Offices

Office buildings, business parks, managed workspaces

Retail & Leisure

Shops, retail parks, gyms, hospitality venues

Hospitality & Tourism

Hotels, holiday parks, restaurants, entertainment venues

Agriculture & Farming

Farm buildings, agricultural processing facilities, rural commercial units

Public Buildings

Schools, community centres, healthcare premises, local authority buildings

Top Questions & Answers

Here are the top questions we’re frequently asked about commercial distribution board…

A domestic consumer unit is designed for household electrical loads, typically a single-phase supply with a relatively modest number of circuits. A commercial distribution board is built to handle the far greater demands of a business environment, often on a three-phase supply, with higher rated protective devices, more circuits, and the capacity to support heavy plant, machinery, or multiple sub-distribution boards across a larger building. They’re fundamentally different pieces of infrastructure and need to be treated as such.

There are a few tell-tale signs. If you’re regularly tripping breakers, if you’ve added new equipment and the board is visibly full, or if you’re planning to bring in EV chargers or significant new machinery, it’s worth getting the board assessed. Older boards with out-of-date protective devices or poor documentation are also worth looking at, particularly if you’re about to undergo an inspection or renew your insurance.

In many cases, partial shutdowns or planned outages can be kept short and scheduled around your working hours. We assess this during the planning stage and discuss your operational requirements before we start. For larger or more complex upgrades, we’ll work through a phased plan with you so that disruption is kept to a minimum throughout.

Yes. If your incoming mains supply is the limiting factor, we can liaise with your DNO (Distribution Network Operator) to arrange a supply upgrade as part of the overall project. This is often necessary when a business is installing EV charging infrastructure or significantly increasing its electrical load, and we manage the process on your behalf to keep things straightforward.

Yes, all distribution board upgrades and mains works need to be carried out by a qualified electrician and must be certified on completion. We provide full test certification for every job, which is important for insurance purposes, building compliance, and any future sale or lease of the property. As NAPIT approved electricians, you can be confident the work meets current wiring regulations.

WHAT OUR CUSTOMERS SAY

Your Journey to Solar Power

BEFORE

Survey: We visit your site to assess your existing distribution board, incoming mains supply, and current electrical loads, giving us a clear picture of what’s needed.

Proposal: We put together a detailed proposal outlining the recommended scope of work, the equipment involved, and a fixed price, so you know exactly what you’re committing to.

Planning: We agree a start date and work schedule with you, taking your operational requirements into account and arranging any necessary DNO liaison in advance.

DURING

Isolation: We carry out a controlled isolation of the relevant circuits, keeping any disruption to your operations as brief and contained as possible throughout.

Installation: Our engineers install and connect the new distribution board or upgraded mains equipment, working methodically and keeping the work area clean and tidy at all times.

Testing: Once installed, we carry out full testing of the new system, checking every circuit and protective device before anything is energised and put back into service.

AFTER

Certification: We issue full test certification and documentation for the completed works, giving you a compliant record of the installation for your files and any future inspections.

Walkthrough: We walk you through the new board, explain the labelling, and make sure your team knows how the system is laid out and what to do in the event of a fault.

Support: We’re on hand after the job is done if any questions come up, and we’re just a phone call away should you need further work or advice down the line.

10 Reasons Our Customers Choose Wave Electrical Solutions

Time to upgrade your electrical infrastructure?

Get in touch with Wave Electrical Solutions today and let's talk through what your business actually needs.
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