• 24/7 emergency call-outs
  • NAPIT
  • 40 years in business
  • No call-out charge
  • Free, no-obligation quotes
  • Same day response
  • All work tested and certified
Three phase installation in South Croydon: tradesman at work on a stepladder

Three Phase Installation in South Croydon

Three phase installation in South Croydon for workshops, businesses and homes with heavy electrical loads. We install three phase boards and circuits, test everything and give you a free quote first.

  • NAPIT registered electrician
  • 40 years in business
  • Free, no-obligation quotes
  • 24/7 emergency call-outs
NAPIT logo

Three phase installation in South Croydon

  1. 01

    What three phase power is

    Most homes have a single phase supply. A three phase supply has three live conductors, which lets you run more power without overloading any one of them. It's common in commercial buildings and is increasingly used for larger heat pumps and rapid EV chargers.

  2. 02

    Who needs a three phase supply

    Workshops with heavy machinery, commercial kitchens, larger offices and some homes with several high-power appliances can benefit. If your main fuse is close to its limit, or you're planning big new loads, three phase can be the cleaner long-term answer.

  3. 03

    Getting the supply connected

    The new supply itself is provided by the network operator, which in Croydon is UK Power Networks. You apply to them for the connection, and there may be a cost and a wait. We advise on what to request and install everything from the meter onwards.

What to expect from a three phase installation

We start by working out your current and planned loads, and whether three phase is the right answer. If you need a new supply, we help you understand what to ask the network operator for. Once the supply is confirmed, we design the distribution board and circuits around your equipment.

On site, we install the three phase board, the circuits and any isolators your machines need, balancing the loads across the phases. Everything is tested before it's switched on, and you receive an Electrical Installation Certificate and circuit charts.

What's included

  • Load assessment
  • Advice on the supply application
  • Three phase distribution board
  • Circuits balanced across phases
  • Isolators for machinery
  • Testing and certification

How it works

  1. Get in touch

    Call or send a message about the job. For urgent faults we aim to respond the same day, with no call-out charge.

  2. Visit and free quote

    An electrician comes out, checks the job and talks you through the options, then you get a free, no-obligation quote.

  3. Tested and certified

    When the work is finished, we test everything we've worked on and hand over the right certificate for the job.

Three phase installation questions

Can I get three phase power at my home in South Croydon?

Often yes, but it depends on what the network operator has nearby. You apply to UK Power Networks, who will tell you whether it's possible, what it costs and how long it takes. We can help you work out whether you really need it first.

Do I need three phase for an EV charger in Croydon?

Not usually. Most home chargers run on a single phase supply. Three phase only becomes worth it for faster chargers, several chargers at once or a home that already has heavy loads like a large heat pump. We check your supply during the survey.

How long does a three phase installation take?

Our part of the work, fitting the board and circuits, usually takes one to a few days depending on the size of the job. The bigger wait is often the network operator's connection, which can take weeks, so it's worth applying early.

Can my existing single phase equipment run on three phase?

Yes. A three phase board can supply ordinary single phase circuits as well, so sockets, lighting and everyday appliances carry on as normal. We spread those circuits across the phases to keep the load balanced, while three phase machines get their own dedicated supplies.

Three phase installation across Croydon

We install three phase power for premises in the areas below. Choose yours for more.