Everything you need to know about rewiring your home in Ireland — what it really costs, which grants can help cover the bill, how much you could save long-term, and how to get an accurate estimate in under 60 seconds.
If you're considering rewiring your home in Ireland, you're probably weighing up three things: how much will it cost, is there any financial help available, and is it actually worth the investment? This guide answers all three — with real 2025 numbers, the latest grant information, and an honest breakdown of the savings you can expect after the work is done.
As a Master Electrician who has overseen hundreds of rewires across Dublin, Meath, Wicklow and Kildare, I've written this based on what homeowners actually ask us on site — not what sounds good in a Google search. Every price, grant figure, and saving estimate reflects what we see in practice, not theory.
Want a quick answer? Our free Instant Rewire Estimator gives you a realistic price range for your home in under 60 seconds — no sign-up, no sales call. Try it at estimator.ges.ie.
How Much Does It Cost to Rewire a House in Ireland in 2025?
The cost of a full house rewire depends on the size of your property, the condition of the existing wiring, and how much additional work is needed (such as plastering, new sockets, or smart home upgrades). Here are the realistic price ranges for 2025 based on our experience across Dublin and the surrounding counties.
| Property Size | Typical Cost Range | What's Included |
|---|---|---|
| 1-bed apartment / studio | €2,800 – €4,200 | New consumer unit, 15–20 circuits, smoke alarms, completion cert |
| 2-bed house | €4,500 – €6,500 | New consumer unit, 20–28 circuits, smoke alarms, completion cert |
| 3-bed semi-detached | €6,000 – €9,000 | New consumer unit, 28–36 circuits, smoke alarms, completion cert |
| 4-bed detached | €8,500 – €12,500 | New consumer unit, 36–48 circuits, smoke alarms, completion cert |
| 5-bed / large detached | €11,000 – €16,000 | New consumer unit, 48+ circuits, smoke alarms, completion cert |
These prices reflect 2025 market rates across Dublin, Meath, Wicklow and Kildare. They include labour, materials, a new consumer unit, Safe Electric certification, and a completion certificate. VAT at 13.5% is included. Prices may vary outside the Greater Dublin Area.
On a per-square-metre basis, a full house rewire in Ireland typically costs between €32 and €55 per sqm. This is the metric most useful for comparing quotes — if someone quotes you significantly above or below this range, ask questions.
What Affects the Cost of a House Rewire?
No two rewires are identical. Here are the factors that push the price up or down:
- Property size and number of rooms — more rooms means more circuits, more cable, and more labour hours
- Number of storeys — a three-storey property costs more to rewire than a bungalow of the same floor area
- Condition of existing wiring — knob-and-tube or very old rubber-insulated cable can add time and complexity
- Accessibility — solid concrete walls are harder (and more expensive) to chase than timber-frame or stud walls
- Occupancy during the work — rewiring an empty property is faster and cheaper than working around a family living in the house
- Additional upgrades — EV charger pre-wiring, smart home cabling, underfloor heating circuits, or outdoor lighting add to the cost
- Making good — some quotes include plastering and redecorating after chasing; others don't. Always check what's included
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Try the Free Estimator →What Grants Are Available for House Rewiring in Ireland?
There are three main routes to financial help for rewiring in Ireland. Two are direct government grants, and the third is an indirect route through SEAI energy upgrade schemes. Here's how each one works and who qualifies.
1. Housing Aid for Older People Grant — Up to €10,700
This is the most accessible grant for rewiring and the one we see used most often. It's administered by your local authority and is specifically designed to help people aged 66 and over carry out essential home repairs — including full electrical rewiring and fuse board upgrades.
- Covers up to €10,700 or 100% of the cost of the work (whichever is lower)
- Applicant must be aged 66 or over (or live with someone who is)
- Gross household income must be under €75,000 (with disregards for Child Benefit, Carer's Allowance, etc.)
- You must own and live in the property
- Tax affairs and Local Property Tax must be up to date
- Work must NOT have started before the grant is approved
Critical: Do not start any electrical work before your grant application is approved. If you do, the grant will not be paid — even if you otherwise qualify. This is the most common mistake we see homeowners make.
2. Vacant Property Refurbishment Grant — Up to €50,000 (or €70,000 if derelict)
If you own a vacant or derelict property and plan to bring it back into use, this scheme can fund the refurbishment — including full electrical rewiring. The amounts are significantly larger than the Housing Aid grant because they cover wider renovation work.
- Up to €50,000 for vacant properties, or €70,000 if the property is confirmed derelict
- The property must have been vacant for at least 2 years and built before 2008
- It must become your primary residence or a rental property after renovation
- Rewiring must be part of a broader refurbishment (not standalone)
- You must own the property or be in the process of purchasing it
- Tax affairs and LPT must be up to date
3. SEAI Energy Upgrade Grants — Indirect Route
The Sustainable Energy Authority of Ireland (SEAI) does not offer a standalone grant for house rewiring. However, if you're carrying out energy upgrades — such as installing a heat pump, upgrading insulation, or adding solar panels — electrical work required to support those upgrades may be covered as part of the wider project scope.
For example, installing a heat pump often requires a consumer unit upgrade and additional circuits, which would be included in the overall SEAI-funded project. The key is that the electrical work must be directly related to the energy upgrade — you can't claim a full rewire through SEAI alone.
Not sure if you qualify for a grant? We built a free Grant Eligibility Checker that walks you through the criteria for both main grants in under 2 minutes. No personal details required.
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Check Your Grant Eligibility in 2 Minutes
Answer a few quick yes/no questions based on the official grant criteria. Find out instantly whether you're likely to qualify — no sign-up, no personal details.
Try the Grant Checker →How to Apply for a Rewiring Grant: Step by Step
- Check your eligibility — Use our Grant Checker tool or review the criteria above to confirm which scheme applies to your situation.
- Get a Periodic Inspection Report — Most local authorities require an electrical inspection report (EICR) documenting the condition of your existing wiring. GES can carry this out for you.
- Obtain two written quotations — Your local authority will typically require at least two quotes from Safe Electric registered contractors. GES provides formal grant-application quotations every week.
- Contact your local authority — Request the application form for the relevant scheme. Dublin City Council, South Dublin, Fingal, and Dún Laoghaire–Rathdown each have their own housing department.
- Submit your application with all supporting documents — proof of age (if applicable), proof of income, LPT confirmation, tax clearance, property ownership, inspection report, and quotations.
- Wait for approval — Processing times vary from 4 to 12 weeks depending on the local authority. Do not start any work until you receive written approval.
- Complete the work — Once approved, instruct your chosen electrician. GES will coordinate directly with your local authority if needed.
- Submit completion documentation — Provide invoices, Safe Electric completion certificates, and before/after photos to your local authority for payment.
What Savings Can You Expect After Rewiring?
A full rewire is a significant upfront investment, but it pays back in several ways over the following years. Here's what our customers typically report after the work is complete.
Lower Energy Bills
Modern wiring is more efficient than old copper-and-rubber cable. New circuits with properly rated cable reduce energy losses, and a modern consumer unit with RCBOs allows you to isolate and manage circuits more effectively. Homeowners who combine a rewire with LED lighting upgrades and smart heating controls typically report 10–20% reductions in their electricity bills.
Increased Property Value
Estate agents consistently report that a recent full rewire with a Safe Electric completion certificate adds value to a property — particularly for older homes where buyers would otherwise factor in the cost of rewiring themselves. For a typical 3-bed semi in Dublin, this can add €15,000–€25,000 to the sale price, comfortably exceeding the cost of the work itself.
Reduced Home Insurance Premiums
Many Irish insurers offer reduced premiums for homes with modern electrical systems. After rewiring, contact your insurer with a copy of your Safe Electric completion certificate. Typical discounts range from 5–10% on your annual premium. Over 10 years, this saving alone can add up to €500–€1,500 depending on your property and insurer.
Safety and Peace of Mind
Electrical faults cause approximately 25% of house fires in Ireland each year. A full rewire eliminates the risk of deteriorated insulation, overloaded circuits, and absent earth protection — the three most common causes of electrical fires in older homes. This isn't a financial saving you can put a number on, but for most families it's the most important reason to rewire.
| Saving Type | Estimated Value | Timeframe |
|---|---|---|
| Energy bill reduction | €200 – €500/year | Ongoing from day one |
| Property value increase | €15,000 – €25,000 | Realised at point of sale |
| Insurance premium reduction | €50 – €150/year | Ongoing after rewire cert submitted |
| Avoided emergency repair costs | €500 – €3,000 | Prevented over system lifetime |
Why Choose Gorman Electrical Services for Your Rewire?
We're not just writing about house rewiring — it's what we do every day. GES is an award-winning electrical contractor based in Dublin, and house rewires are our core service. Here's what sets us apart:
- Winner of Best Small Electrical Contractor of the Year 2024 at the National Electrical Awards
- Safe Electric registered with full public liability insurance
- Hundreds of rewires completed across Dublin, Meath, Wicklow and Kildare
- Free Instant Rewire Estimator — get a price range in 60 seconds without a site visit
- Free Grant Eligibility Checker — find out if you qualify for government funding in 2 minutes
- We provide the Periodic Inspection Report and formal quotations needed for grant applications
- Every rewire comes with a Safe Electric completion certificate and 5-year workmanship guarantee
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Use our Instant Rewire Estimator to get a realistic price range for your home in under 60 seconds. If you like what you see, book a free no-obligation site visit.
Get My Free Estimate →Frequently Asked Questions
Is it worth rewiring an old house in Ireland?
Yes. If your home was built before 1980 and hasn't been rewired since, the wiring is likely deteriorated and potentially dangerous. A full rewire improves safety, increases property value, reduces insurance costs, and gives you a modern electrical system that will last 30–40 years. It's one of the highest-return home improvements you can make.
How long does a house rewire take?
A typical 3-bed semi-detached house takes 5–7 working days for the electrical work. If the house is empty, it can be faster. If you're living in the property during the work, we rewire room by room to minimise disruption. Plastering and making good adds another 2–3 days depending on the extent of chasing required.
Can I live in my house during a rewire?
Yes, most of our customers stay in their homes during the rewire. We work room by room, ensuring you always have power to essential areas like the kitchen and bathroom. There will be some disruption — dust, noise, and temporary loss of power in the room being worked on — but it's manageable for most families.
Do I need to rewire my whole house or can I do it in stages?
A full rewire is always the recommended approach for safety and compliance. Partial rewiring can create issues where old and new wiring meet, and it won't earn you a full Safe Electric completion certificate. That said, if budget is a concern, we can discuss a phased approach — starting with the consumer unit and high-risk areas.
What's the difference between the Housing Aid grant and the Vacant Property grant?
The Housing Aid for Older People Grant (up to €10,700) is for homeowners aged 66+ who need essential repairs to their current home. The Vacant Property Refurbishment Grant (up to €50,000/€70,000) is for owners of empty properties being brought back into use. Different criteria, different amounts, different purposes. Our Grant Checker tool will tell you which one applies to your situation.
How do I get an accurate rewiring quote without a site visit?
Our Instant Rewire Estimator at estimator.ges.ie asks four questions about your property — type, size, age, and occupancy — and gives you a realistic price range based on hundreds of previous jobs. It's not a binding quote, but it's accurate enough to help you plan your budget and decide whether to proceed with a formal site visit.
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Ready to Get Started?
Whether you want a quick estimate, need to check your grant eligibility, or are ready to book a free site visit — we've got you covered.
Get Your Free Estimate →If you'd prefer to speak with someone, call us on 01 963 6636 — we're always happy to talk through your options. You can also check your grant eligibility at ges.ie/grant-checker or explore our full house rewiring service at ges.ie/house-rewiring.
Written by
Patrick Gorman
Master Electrician · Safe Electric Registered
Patrick has been working as a Safe Electric registered electrician in Dublin for over a decade, specialising in full house rewires, EICR inspections, and smart home installations.