HOW TO HIRE · ELECTRICAL · CHECKED OCTOBER 2026
A three-phase installation in Ireland costs €800–€4,000 per job, typically around €1,800. Here is how to check that in a minute, what to ask before you book, and what you must be handed when the job is done.
THE 60-SECOND VERSION
BEFORE YOU BOOK
Restricted to Registered Electrical Contractor (REC): a new circuit; a rewire; a new or replacement distribution board; work at the meter; a new supply to a bathroom or an outdoor area. Not restricted: replacing a light fitting like for like; replacing a socket front like for like.
Search the Safe Electric register for the name or the registration number before you agree a price. safeelectric.ie →
Issued by the Registered Electrical Contractor on completion of restricted works, once tested. It matters because it records that the work met the national wiring rules and was tested, and it is asked for on sale, remortgage and insurance.
Agree before the work starts that you will be handed completion certificate, and keep it with the house papers.
Expect public liability; ask who the insurer is and for the policy number. From a company, ask for the insurer, the limit and the VAT number, and ask who actually attends: the team that turns up may be employed, subcontracted or both, and only one of those is supervised by the firm you are paying.
Ask to see the current certificate of insurance — the insurer's name, the limit and the date it runs to.
Under the Consumer Rights Act 2022 a trader must tell you they are a trader, and your consumer rights — work carried out with reasonable skill and care, and a cooling-off period on a contract agreed in your home or online — apply to traders and not to private sellers. On Locufy the trader status is shown on the profile.
Look for the trader badge on the Locufy profile, and ask anyone else for it in writing before you agree a price.
VAT at 13.5%, the reduced rate Revenue publishes for this service. Ask whether the price you were given includes it. A trader under the €42,500 registration threshold does not charge it; one over it must, and must show it separately.
Ask whether the figure you were given includes it, and for the VAT number if they are registered — Revenue publishes the rate for this service. revenue.ie →
A good answer: A number you can look up yourself before you agree a price — circuit Breaker Setup — A crucial part of three-phase installation is setting up circuit breakers that can handle the higher voltage and current.
A good answer: On the day the work is finished and tested, not posted on later — wiring and Cabling — this service includes the installation of appropriate wiring and cabling to support the three-phase system.
A good answer: Two jobs that look alike can differ here by hours. — ask before the quote rather than after.
A good answer: A mobile service brings everything with it, and that costs. — ask before the quote rather than after.
A good answer: Heavy build-up has to be dealt with before anything else. — ask before the quote rather than after.
A good answer: Installation Overview — three-phase installation involves connecting a three-phase electrical system to your property, which is typically used for heavy machinery or commercial applications — get the exclusions named in the quote, because a three-phase electrician job is priced on what was agreed and not on what was assumed.
A good answer: Expect public liability; ask who the insurer is and for the policy number — load Balancing for Three-Phase Systems — adjusting and optimising the load distribution across three phases for efficiency.
The figures are for the job, per job, and a quote for your own is the only number that binds anyone. Residential three-phase installation and Commercial three-phase installation each carry their own band. Three-Phase Installation price guide →
Guide prices compiled by the Locufy team from published Irish and UK provider price lists and 2026/27 cost guides. Updated 2026.
KNOW WHAT TO LOOK FOR? NOW FIND ONE
ID checked, trader status and one score from every review — on the card, before you message anyone. Nearest first. No account needed to look.
Or post the job free and let them come to you.
AFTER
MONEY BACK
Two public schemes touch electrical work in a home. Neither pays for the job itself; both are claimed for the equipment and its installation, and the amounts and the dates are SEAI's own.
Who: A homeowner, or anyone with off-street parking at the property. You do not have to own an electric vehicle to apply.
Who: The owner of a home built and occupied before 2025.
Schemes change. The amounts above were checked on the dates shown; the official page is the one that counts.
The cost of three-phase installation can vary based on the complexity of the job, the distance from the power source, and any necessary upgrades to existing electrical systems. Additional costs may arise from specific equipment needed for your setup.
The duration of a three-phase installation can range from a few hours to a couple of days, depending on the complexity of the work and the existing electrical infrastructure. A qualified electrician can provide a more accurate estimate after assessing your site.
Some electricians offer emergency or same-day installation services, especially for critical business operations. However, availability may vary, so it's best to contact local providers directly for urgent needs.
Yes, many electricians offer package deals for multiple services, such as three-phase installation alongside general rewiring or lighting upgrades. This can often lead to cost savings and more efficient scheduling.
Out of scope work may include extensive structural modifications, installation of non-electrical components, or repairs to existing wiring that are not directly related to the three-phase system. Always clarify with your electrician what is included in the service.
Search the name or the registration number. If the number does not resolve to the name on the quote, stop there.
MORE GUIDES
