About Three Phase Cost
What actually sets the price of upgrading a property to a three phase electricity supply, and quotes from contractors who handle the network operator application.
What is on this site
One question, "three phase power upgrade cost uk", answered with a quote form that works on the page with no account, 3 guides on the questions around it, a data table you can cite (the figures and their method), and the sources every figure rests on.
- Three phase upgrade: who does the work, DNO or electrician?: The network operator owns the supply up to the meter position. Your electrician owns everything after it. Getting the split wrong is what stalls these projects.
- Single phase or three phase: do you actually need the upgrade?: Three phase solves a capacity problem and a motor problem. If you have neither, a larger single phase fuse or load management is usually cheaper and quicker.
- Three phase for EV charging and heat pumps: when it is needed: Electrification is the main reason people ask for three phase now. What triggers a genuine need, and how to sequence the application so the project does not stall.
Reach us
Contact for a question about the site, or quotes@threephasecost.co.uk. The legal terms are on Terms and Privacy.
Three Phase Cost is a free introduction service operated by Ellul Solutions Ltd; we pass your details to electrical contractors and connection providers who quote you directly. We may receive a fee from providers; you pay nothing and are under no obligation. We are not electricians, a network operator or an independent connection provider, and nothing here is design or legal advice. We publish no price range because connection charges are set by each network operator's own approved methodology and by site conditions we cannot see, so the quotation you receive is the only figure that means anything.