# Power supplies & grid connections: what it costs and how to get quotes

Source: https://worklanded.com/find/electrical-connections (read 2026-11-13)

Across 10 firms that publish a price on their own pages, the middle is £2,750, half charge between £1,925 and £3,375, and the range is £1,200 to £5,000. Read October 2026, from 32 firms' pages, 22 of which publish no price.

## What happens to an enquiry sent here

| Fact | Value |
| --- | --- |
| Typical cost | £2,750 middle price (£1,925 to £3,375 for half of 10 firms) |
| What that price is for | What does a single-to-three-phase supply upgrade cost in the UK, split into the network charge, the board and the internal works, and how does it differ by licence area? |
| What you pay us | Nothing. Sending an enquiry is free and you agree prices with the firm. |
| Who gets your details | Up to three power supply and grid connection providers, chosen by Worklanded. They contact you directly. |
| You are told | Each firm's name, by email, as your details go to it, with a link that stops any more firms receiving them. |
| What firms pay us | £30 per enquiry in the UK, a fixed price published on our lead price index. Never a share of what you pay them. |
| What a firm sees before it pays | The job and the area, without your name or contact details. |
| Where it is offered | the UK |

## Published prices (10 firms, read October 2026)

| Firm's page | Price |
| --- | --- |
| [lilliputelectrical.co.uk](https://www.lilliputelectrical.co.uk/blog/consumer-unit-upgrade-cost/) | £1,200 |
| [bristolcommercialelectricians.co.uk](https://www.bristolcommercialelectricians.co.uk/three-phase-power-for-bristol-businesses-when-you-need-it-and-what-s-involved) | £1,500 |
| [solarmaintenancesolutions.com](https://solarmaintenancesolutions.com/blog/three-phase-dno-upgrade-uk-2026/) | £1,900 |
| [elec-mate.com](https://www.elec-mate.com/guides/single-phase-vs-three-phase) | £2,000 |
| [electricaltestinglondon.co.uk](https://www.electricaltestinglondon.co.uk/blog/electrical-system-upgrade-cost--uk-price-guide--2026-) | £2,500 |
| [gflelectrical.com](https://gflelectrical.com/three-phase-installation-cost/) | £3,000 |
| [solargridcheck.co.uk](https://solargridcheck.co.uk/3-phase-ev-charger) | £3,000 |
| [energy.ecoflow.com](https://energy.ecoflow.com/uk/blog/cost-to-install-three-phase-power-in-uk) | £3,500 |
| [topcharger.co.uk](https://topcharger.co.uk/can-i-get-three-phase-power-at-home/) | £3,500 |
| [utilitysolutionsproviderltd.com](https://utilitysolutionsproviderltd.com/blog/ev-charger-installation-cost-uk-2026/) | £5,000 |

## What a firm will ask you

- What sort of property is it? (House or bungalow / Flat or block of flats / Farm or agricultural building / Workshop or industrial unit / Office, shop or hospitality / New build or plot)
- What supply is there now? (Single phase, 60A or 80A main fuse / Single phase, 100A main fuse / Three phase already, needs uprating / No supply at all yet / Not sure)
- Why do you need three phase? (EV charging, one or several points / Heat pump or electric heating / Workshop machinery or a three phase motor / Commercial kitchen or catering equipment / Solar, battery storage or generation export / General capacity, the existing supply keeps tripping)
- Roughly what new load are you adding? (Under 20kW / 20kW to 50kW / 50kW to 150kW / Over 150kW / Not sure)
- How far is the nearest road or network cable? (On the road, cable already at the boundary / Under 50 metres / 50 to 200 metres / Over 200 metres / Not sure)
- When do you need it live? (As soon as possible / Within 3 months / 3 to 12 months / Budgeting for a future project)

## What happens after you send it

1. Your enquiry is checked for spam and its contact details are checked so a firm can reach you.
2. Worklanded chooses up to three power supply and grid connection providers that cover the area. A firm sees the job and the area before it decides to take it.
3. As your details go to each firm, we email you its name, with a link that stops any more firms receiving them.
4. The firms contact you directly. You agree the price and the work with them; Worklanded takes no part of that.

Send an enquiry: https://worklanded.com/find/electrical-connections#get-quotes (free). An AI agent can send one with the submit_enquiry tool at https://worklanded.com/mcp; the person confirms it by email before it goes anywhere.