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
Built for Capacity, Not Just Today
We Work Around You
Clear Quotes, No Hidden Costs
What We Offer
- Commercial Distribution Board Upgrades
- Mains Capacity Assessments
- Load Analysis and Future-Proofing
- EV Charger Supply Installation
- New Machinery Supply Circuits
- Full Testing and Certification
- Compliant and Documented Installations
- NAPIT Approved Electricians
- Clean and Tidy Workmanship
Got questions about your distribution board?
Fill in your details below and we’ll get back to you within the hour. We offer free advice, honest recommendations, and no-obligation quotations.
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
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Qualified and Approved
We're NAPIT approved electricians, so every distribution board upgrade we carry out is inspected, tested, and fully certified to current wiring regulations. -
Commercial Focus
This is commercial and industrial work, not a domestic job dressed up. We understand the demands of business electrical systems and design accordingly. -
Honest Assessments
We tell you what actually needs doing, not what generates the biggest invoice. If a repair will do the job, we'll say so. -
Capacity Planning
We look at where your business is heading, not just where it is today, so your new board won't be undersized in two years' time. -
Minimal Downtime
We plan work around your schedule and get the job done efficiently, because we know that time off the tools or off the shop floor costs you money. -
Clear Pricing
You get a detailed, fixed-price quote before we start. No vague estimates, no surprises, and no additions without your sign-off first. -
Tidy Workmanship
We leave your site in the same condition we found it, with a clean, well-labelled installation that any future electrician or inspector will appreciate. -
Full Documentation
Every job comes with proper test certificates and records, keeping you covered for insurance, compliance audits, and property transactions. -
Straightforward Communication
We keep you informed at every stage and explain things in plain language, without the technical jargon that leaves you more confused than when you started. -
We're Easy to Work With
From the first call to the final sign-off, our team is approachable, responsive, and focused on making the whole process as straightforward as possible for you.