New electricity connection for business premises cost UK
Get a clear view of likely costs, timeframes and who pays for what when you need a new electricity supply for a shop, office, unit or new build. We’ll also show how to reduce delays and avoid the common “surprise extras”.
- Typical cost range depends on whether you need a simple service connection or network reinforcement
- Two key players: your local Distribution Network Operator (DNO) and your chosen electricity supplier (for the meter)
- Includes real-world scenarios and a quote checklist you can use with contractors and landlords
Estimates only. DNO charges, site conditions and timescales vary by location, capacity required and how quickly you need the work.
Fast answer: what does a new electricity connection cost for business premises in the UK?
A new electricity connection for business premises cost UK can be anywhere from a few thousand pounds for a straightforward low-voltage service to tens of thousands (or more) if the local network needs upgrading. Your DNO quotes for the network connection; your supplier then fits the meter. The biggest cost driver is capacity and distance to the nearest suitable mains.
Most common cost drivers
- Requested capacity (kVA / amps)
- How far the cable run is (and whether it must cross a road)
- Whether reinforcement is needed (upgrades to local cables/transformer)
- Traffic management, permits and reinstatement
Typical timescales
Allow weeks for a quote and design, then more time for civils work and scheduling. Simple jobs can be quicker; reinforcement and wayleaves usually take longer.
A practical next step
Get a DNO connection quote early, then line up a supplier for your meter appointment so you’re not paying rent on a unit you can’t power.
If you’re moving into leased premises, check the lease and dilapidations: sometimes a landlord expects the incoming tenant to fund capacity upgrades, even if the building already has a supply.
Get a tailored estimate (and business energy quotes)
If you tell us the basics, we’ll help you compare business electricity options for the premises once it’s connected. This is also the quickest way to keep the “supplier + meter + contract start date” aligned with your DNO timeline.
You don’t need to know your exact load yet. If you’re unsure, put your best estimate and we’ll prompt you with the right questions (for example: single-phase vs three-phase, electric heating, EV charging, commercial kitchen kit).
What you’re paying for, in plain English
- DNO connection works
- Bringing the network to your boundary and installing/altering the service cable and cut-out (and sometimes upgrades further back on the network).
- Civils and reinstatement
- Digging trenches, ducting, chambers, road crossings, plus making good pavements/roads to the council’s standard.
- Metering and energisation
- Your supplier arranges meter installation and sets your tariff/contract start. For larger sites this can involve CT metering and extra equipment.
- Your internal wiring
- Everything after the point of supply inside the building is usually your electrician’s job (consumer unit/distribution board, tails, testing, certificates).
Request a callback
How the process usually works (so you can plan your move-in)
- Work out what you’re asking for: new supply, upgrade, or three-phase. If you’ve got an electrician, ask for a rough maximum demand estimate.
- Apply for a DNO connection quote. They’ll design the works and price it based on what’s needed in the street and on your land.
- Agree who’s doing civils. Sometimes the DNO does everything; sometimes you (or your contractor) do trenching/ducts to their spec.
- Once the supply is ready, pick a business electricity contract and arrange meter installation through your supplier.
- Keep paperwork handy: address, meter point details (if any), landlord permissions, and completion dates.
Connection types compared (what changes the cost)
Most cost confusion comes from calling different jobs “a new connection”. This table helps you pin down what you actually need before you request quotes.
| What you need | Typical trigger | Main cost drivers | Common “gotchas” |
|---|---|---|---|
| New low-voltage supply (single-phase) | Small office, salon, small retail unit | Cable route length, road crossing, local capacity | Wayleaves, parking suspensions, reinstatement standard |
| Upgrade to higher capacity (same phase) | Adding equipment, electric heating, small EV charging | Service cable/cut-out upgrades, upstream reinforcement | Your internal board may also need upgrading (separate cost) |
| Three-phase supply | Workshop, machinery, larger kitchen, lifts, HVAC | Distance to three-phase mains, reinforcement, metering type | Longer lead times; more drawings and permissions |
| New connection for a new build / multi-plot | Developer build, change of use, major refurb | Ducting/civils scope, multiple meters, network upgrades | Who owns the ducting/maintenance; programme slippage |
Quick checklist: who it suits
- You’re signing a lease and need clarity on total “ready to trade” costs
- You’re taking a unit that’s currently unmetered or has a disconnected supply
- You’re adding load (kitchen kit, compressors, EV chargers) and want to know if the incoming cable is the bottleneck
Quick checklist: who it doesn’t suit
- You already have an active meter and just want a cheaper tariff (use business energy quotes)
- You need temporary builders’ power only (you’ll usually need a dedicated temporary supply arrangement)
If you’re comparing premises, ask the agent/landlord for proof of supply capacity and whether three-phase is already present. A “three-phase building” can still have a limited available capacity without upgrades.
Costs, exclusions and common pitfalls
This is the stuff that most often blows budgets or timelines. None of it is exotic — it’s just easy to miss if you’ve only ever switched a supplier at an existing meter.
Reinstatement and permits
If the job touches the highway, you can face permits, traffic management, and stricter reinstatement standards. A short trench can still be expensive if it needs lights, cones, and timed working windows.
Wayleaves and third-party permissions
If cables need to cross someone else’s land (or a landlord won’t sign promptly), the paperwork can become the critical path. Start permission requests early.
Internal electrics aren’t included
DNO pricing is about getting power to the point of supply. Your distribution board upgrades, earthing arrangements, and certification sit with your electrician and can be a separate (sometimes sizeable) line item.
Two realistic scenarios (with numbers and assumptions)
These are illustrative only — not promises. They’re here so you can sanity-check quotes and ask better questions.
Scenario A: Small retail unit needing a new single-phase supply
Assumptions: existing mains is nearby; no major reinforcement; straightforward trench on private land with limited highway works; standard metering. Indicative range: £2,000–£8,000+ (DNO + civils), plus your supplier’s metering appointment and your electrician’s internal works.
Scenario B: Light industrial unit upgrading to three-phase / higher capacity
Assumptions: three-phase network exists but may be at capacity; potential transformer/cable upgrade; more complex metering; possible highway crossing. Indicative range: £10,000–£50,000+ where reinforcement is needed, with programme risk if permissions and traffic management are involved.
Common “surprise extras” to ask about
- Is the quote subject to a site survey and route confirmation?
- Does it include highway permits and traffic management?
- Are you expected to provide trenching/ducting to the DNO spec?
- Any asbestos or duct congestion risk at the intake position?
- Do you need landlord consent for the meter location and cable route?
If you’re under time pressure, tell the DNO and your contractor upfront. Expediting is sometimes possible, but it usually depends on resource availability and permits — not just paying more.
FAQs
Who do I pay for a new electricity connection: the supplier or the DNO?
For most new connections, you pay the DNO (your local network operator) for the connection works and any network upgrades. Your electricity supplier is usually involved later for the meter installation and your ongoing energy contract.
Is a new electricity connection cheaper if I do the trenching myself?
Sometimes. If the DNO allows “customer provided” civils, you might reduce labour costs, but you’ll need to follow their exact specification for depth, ducting, warning tape, and reinstatement. If it’s in the highway, specialist permits and accredited contractors may still be required.
How long does a new electricity connection take for a business premises?
Timescales vary a lot. A straightforward low-voltage connection can be planned in weeks, while jobs needing network reinforcement, wayleaves or significant highway work can take months. Build the connection timeline into your lease and fit-out plan as early as you can.
Do I need three-phase power for my business?
Not always. Many small premises run fine on single-phase. Three-phase is more likely if you’re running larger motors, commercial refrigeration, lifts, some workshop equipment, or higher-capacity EV charging. An electrician can estimate demand and help you avoid paying for capacity you won’t use.
Can I choose any supplier before the meter is installed?
In most cases, yes — you can choose a business electricity supplier to set up your account and arrange metering once the supply is ready. Availability and metering requirements can differ by site, so it’s sensible to line up the supplier while the DNO work is progressing.
If the premises already has a supply, why am I being quoted for a “new connection”?
It can happen if the existing supply has been removed, the intake position needs moving, the capacity is too low for your planned use, or the building is being subdivided into multiple units. Ask the DNO (or your landlord) what exists today: active meter, MPAN details, and the current fuse size/capacity.
What information do I need to request a connection quote in the UK?
You’ll usually need the site address and postcode, a plan showing the proposed intake/meter position, your required capacity (or a best estimate), and details of any deadlines. If you’re leasing, you may also need written permission from the landlord for the cable route and meter location.
Will I pay VAT on a new business electricity connection?
Often, yes, but the VAT treatment can depend on what’s being supplied and your business status. Treat any estimate as ex-VAT unless it states otherwise, and confirm VAT treatment with the DNO/contractor and your accountant before you budget.
Trust, methodology and sources
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Written by: EnergyPlus Editorial Team
Reviewed by: Energy Specialist
Last updated: September 2026
How we assess costs (and the limits)
We don’t have access to your DNO’s design tools or site survey notes, so we can’t give one “correct” price for every business. Instead, we use a transparent, decision-led model: we group jobs by connection type (new supply vs upgrade vs three-phase), then stress-test the likely cost range against the factors that most change the bill.
- Included in our ranges: common UK cost drivers like distance, highway work, and network reinforcement risk.
- Not included: your internal electrical works, landlord fees, specialist building works, and any business interruption costs.
- Why ranges are wide: two premises on the same street can have very different network capacity and cable routes.
Sources and further reading
- Ofgem — UK energy regulator information and consumer guidance
- Citizens Advice energy advice — practical consumer support (useful for process and rights)
- GOV.UK — planning, business guidance, and regulatory information
We link to reputable UK public bodies for background. Connection charges and engineering requirements are confirmed by your local DNO and can change with network conditions.
Ready to price your business electricity?
If your connection is in progress (or you’re moving into a new unit), we’ll help you compare whole-of-market business energy options for your postcode. No made-up rates — you’ll see live availability through the quote journey.
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