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How Much Does It Really Cost to Rewire a House in Ireland?

How Much Does It Really Cost to Rewire a House in Ireland?

If you’ve found yourself searching “How much does it cost to rewire a house in Ireland?”, chances are you’ve either bought an older property, you’re planning a renovation, or you’ve been told by an electrician that your wiring has seen better days. It’s not exactly the most exciting home improvement to budget for, but it’s one of the most important.

Unlike a fresh coat of paint or a new kitchen, you won’t spend much time admiring your new wiring. In fact, once the job is finished, you’ll probably never think about it again – and that’s exactly how it should be. Good electrical wiring quietly does its job every day, keeping your home powered safely and reliably.

The question everyone wants answered is, “How much is it going to cost?”

The honest answer is that there isn’t a fixed price. Every house is different, and that’s why any reputable electrician will want to inspect the property before providing a quotation.

As a general guide, a full rewire in Ireland can range from around €6,000 for some smaller homes to €12,000 or more for larger or more complex properties. Homes in Dublin and other areas with higher labour costs may be at the upper end of that scale. The size of the property, its age, accessibility, and the specification of the installation all have a significant impact on the final cost. 

One thing that’s often overlooked is that two houses with the same number of bedrooms can have completely different rewiring costs. A three-bedroom bungalow with easy access under the floors is a very different project from a three-bedroom home with solid concrete walls, previous extensions and decades of alterations hidden behind the plaster.

The biggest factors that affect the price include the size of the property, how many sockets and lighting points are required, whether the house is occupied during the work, the condition of the existing wiring and whether additional circuits are needed for modern appliances such as electric showers, induction hobs, heat pumps or future EV charging points. Decorative finishes such as brushed steel or black switches can also increase material costs compared with standard white accessories.

A proper full rewire usually includes replacing all of the electrical cables, installing a modern consumer unit (often still referred to as a fuse board), new sockets and switches, testing the installation and issuing the relevant certification once the work has been completed. Depending on the project, it may also include interconnected smoke and heat alarms, which are now expected in modern domestic electrical installations. 

One of the biggest surprises for homeowners isn’t always the cost – it’s the amount of work involved.

There’s no getting around it; rewiring is messy. Floors may need to be lifted, walls chased for new cable runs and furniture moved out of the way. If you’re already planning a renovation or extension, it’s often far more cost-effective to carry out the electrical work before the house is replastered or redecorated. Nobody wants freshly painted walls being opened up a few months later.

Another common question is whether every older house automatically needs a full rewire.

Not necessarily.

Some properties only require a consumer unit upgrade or repairs to individual circuits. Others may still have wiring that’s in perfectly serviceable condition. The only way to know for certain is through a professional inspection, which may include an Electrical Installation Condition Report (EICR). This identifies whether the existing installation meets current safety standards or whether remedial work is recommended. (Homebuilding)

There are, however, a few warning signs that shouldn’t be ignored. Frequent tripping of the electrics, buzzing sockets, scorch marks around switches, outdated fuse boards without modern RCD protection or very old rubber or fabric-insulated wiring are all indicators that your electrical installation should be checked by a qualified electrician. Older homes simply weren’t designed for the amount of electricity today’s households use. Between home offices, air fryers, electric showers, tumble dryers, gaming consoles and electric vehicle chargers, modern homes place far greater demands on their electrical systems than they did thirty or forty years ago. 

One mistake many homeowners make is comparing quotations based purely on the bottom line. It’s worth looking carefully at what’s actually included. Does the quotation include certification? Are smoke alarms included? Will every socket and switch be replaced? Is the consumer unit being upgraded? Does the price include testing once the work is complete? These are the details that can make one quotation look much cheaper than another.

A few useful questions to ask before accepting a quote:

• Is all existing wiring being replaced?

• Is a new consumer unit included?

• Will the installation be fully tested and certified?

• Are smoke and heat alarms included?

• Does the quote include making good after chasing walls, or will this need to be arranged separately?

• How long is the work expected to take?

A full rewire isn’t something anyone looks forward to, but it’s one of those investments that delivers benefits every single day. You’ll have a safer electrical installation, enough capacity for modern appliances, fewer electrical issues and the reassurance that your home is ready for years to come.

If you’re buying an older property, renovating your current home or simply have concerns about ageing wiring, getting expert advice early can save both time and money. Sometimes a full rewire is the right answer. Sometimes it isn’t. The important thing is making that decision based on the condition of the installation rather than guesswork.

When it comes to your home’s electrics, peace of mind is something that’s always worth investing in.

Kate Scully

23.07.2026

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