Electrical Contractor · Dublin
Electrical Contractor in Dublin
We deliver large-scale residential electrical packages across the Dublin D postcodes, from apartment schemes in the city out to the commuter towns of Swords, Lucan, and Tallaght. Safe Electric-certified crew, full programme management, and solicitor-ready documentation on every handover.
Why Choose Us in Dublin
Four local authorities, four different jobs: 44% of city homes predate 1961, in Fingal just 6%.
Dublin's housing is a mix of city-centre apartment blocks, post-war semi-detached estates, and new commuter-belt developments, each with its own wiring demands and its own certification load at handover. We work with Dublin-based developers and main contractors on multi-unit schemes, handling everything from first fix to the final IS 10101 paperwork the solicitor needs. Our team travels from Wexford and maintains a consistent on-site presence throughout each project phase. We also cover the neighbouring stretches of Meath and Kildare where the same commuter estates spill over the county line.
What makes Dublin different
Dublin is four electrical markets wearing one name. In Dublin City, 43.9% of homes were standing before 1961: 95,637 houses, more than the entire housing stock of County Kilkenny, and the densest concentration of genuinely rewire-age wiring in the country. Cross into Fingal and that share collapses to 6.1%, so the same enquiry flips from replacing cable to adding capacity to a board that was never sized for a car charger. South Dublin sits on a third story again, with nearly half its homes built between 1961 and 1990, the band where the answer depends on which end of it you are at. The county name tells us almost nothing about a Dublin job. The local authority and the decade tell us most of it.
Going deeper in Dublin
Dublin Housing Stock
What decides the job here is when the house was built
The wiring rules are national. What actually changes the work is the decade, and Dublin’s stock has its own shape: 33.2% of homes here were built 1961 – 1990. Find your era below and follow it through to the detail.
| Built | Homes in Dublin | Share | What that usually means |
|---|---|---|---|
| Before 1961 | 131,687 | 26.1% | Rubber or lead-sheathed cable. Usually a genuine rewire. |
| 1961 – 1990 | 167,952 | 33.2% | Depends which end of the band. Fuse wire and no RCD are common. |
| 1991 – 2010 | 163,473 | 32.3% | Sound cable, dated board. Almost never a rewire. |
| 2011 onward | 42,344 | 8.4% | Nothing degrading. Capacity for a charger or a heat pump is the question. |
Source: CSO Census 2022, table FY033A, period of construction of occupied dwellings in Dublin. 505,456 dwellings stated. Data pulled 2026-08-05.
37,143
New homes, 2023–2025
Completed across Dublin
757
Were one-off houses
2% of the county's completions
3,000
Built around Clondalkin
The busiest town in Dublin
Where the building is happening in Dublin
Clondalkin (3,000) · Killiney-Shankill (2,646) · Glencullen-Sandyford (2,274) · Lucan (2,083) · Blanchardstown-Mulhuddart (2,060) · North Inner City (2,019) · Rush-Lusk (1,902) · Donaghmede (1,878) · Tallaght South (1,836) · Howth-Malahide (1,622) · South West Inner City (1,433) · Tallaght Central (1,309) · Cabra-Glasnevin (1,216) · Ballyfermot-Drimnagh (1,193) · Swords (1,026) · South East Inner City (982) · Kimmage-Rathmines (826) · Dún Laoghaire (764) · Stillorgan (757) · Blackrock (706) · Ongar (686) · Pembroke (681) · Rathfarnham-Templeogue (673) · Palmerstown-Fonthill (641) · Castleknock (635) · Dundrum (595) · Balbriggan (478) · Clontarf (433) · Artane-Whitehall (392) · Firhouse-Bohernabreena (288) · Ballymun-Finglas (243). New dwelling completions 2023–2025, CSO. Newer stock changes what a job looks like: a house finished in the last few years needs capacity added rather than cable replaced.
Not sure which era yours is?
Nine questions about the age, the fuse board and the cabling, and a clear verdict in about two minutes. Free, no sign-up.
Costs are not repeated on county pages. For the full picture see what a house rewire costs in Ireland and what a fuse board upgrade costs.
On The Ground In Dublin
The job is not the same across the county
Dublin City holds the rewire-age stock, at a scale no county matches
95,637 homes inside the city council area were standing before 1961. For scale, that is more pre-1961 houses than County Kilkenny has houses. This is where the terraces and the redbricks are, and where we find what that age implies: rubber-insulated cable that has gone brittle behind the plaster, lighting circuits with no earth, and boards that have been added to for sixty years. It is also not frozen in time. The North Inner City took 2,019 new completions between 2023 and 2025, so brand-new apartment stock is going up beside the oldest wiring in the country, often on the same street.
South Dublin is the 1961 to 1990 county
46.9% of South Dublin's homes, 46,123 of them, went up between 1961 and 1990. That is the heaviest concentration of that band anywhere we work, and it is the band where the answer genuinely depends on which end your house sits at. A 1965 semi and a 1988 semi look similar from the road and need different work. It is also the busiest building corridor in the county right now: Clondalkin took 3,000 completions in three years, more than any other electoral area in Dublin, with Lucan on 2,083 close behind.
Fingal barely has a rewire market, and that is the point
6.1% of Fingal's stock predates 1961: 6,430 homes out of 105,338. More than six in ten Fingal houses were built after 1991, so the cable is almost always sound and the enquiry is almost always capacity. A board with no spare way, a car charger, a heat pump the installation was never sized for. Swords, Blanchardstown, Rush and Lusk are all building steadily, and the practical work there is boards and circuits, not strip-outs. If someone in Fingal has been quoted a full rewire, that quote deserves a second opinion.
Dún Laoghaire-Rathdown mixes period fronts with new corridors
A quarter of DLR's homes predate 1961 and another 38.5% are from 1961 to 1990, so the age questions run the full range. What makes it distinctive right now is how much is being added: Killiney-Shankill took 2,646 completions between 2023 and 2025 and Glencullen-Sandyford 2,274, two of the three busiest areas in the county. In practice that means period houses, sixties semis and brand-new infill on the same runs, and the test results, not the postcode, decide what each one needs.
Our Services
Electrical Services in Dublin
We deliver the full range of electrical services across Dublin. Every job is Safe Electric certified.
Multi-unit residential developments across Dublin
Apartment and duplex electrical packages
Commercial office and retail fit-outs
EV charger installation for Dublin homes and businesses
Safe Electric testing and certification for property transactions
Areas We Cover
Serving Dublin & Surrounding Areas
Who You’re Dealing With
Why this job is safe with us
J Cowman Electrical Contractors is based in Wexford and covers Dublin as part of our Leinster service area. Same crew, same registration, same certificate on completion.
Safe Electric registered
Registration A6700
Verifiable on the public register
Public liability insurance
Up to €6.5M
Cover in place on every job
Crew size
10 electricians
Trading since 2021
Fixed-price quote
Within 48 hours
WhatsApp replies within the hour, Mon–Fri
Track Record.
Accreditations
Safe Electric A6700
SEAI Registered
Fully InsuredFAQ
Common Questions: Dublin
Do you cover all of Dublin?
Yes, we cover Dublin and surrounding areas. Whether you're in the town centre or a more rural part of Dublin, we can reach you. Contact us and we'll confirm availability for your exact location.
How quickly can you get to me in Dublin?
We respond within 1 hour for urgent jobs in Dublin. For planned work, we'll schedule a convenient time that suits you, usually within 48 hours of your initial enquiry.
Are you Safe Electric registered for work in Dublin?
Yes. J Cowman Electrical Contractors is fully Safe Electric registered, Safe Electric certified, and carries full public liability insurance. Every installation in Dublin is tested and certified to IS 10101.
Do you provide free quotes in Dublin?
Yes. Send us the details of your project (photos, plans, or a quick description) and we'll return a fixed-price quote within 48 hours. For larger jobs, we'll arrange a free site visit in Dublin.
What types of projects have you completed in Dublin?
We've delivered a range of projects in Dublin including full house rewires, EV charger installations, new build electrical packages, and commercial fit-outs. Every project comes with full Safe Electric certification.
From a Single Rewire to Full Developments: Send Us the Details.
Send us your plans or a quick description. We return a fixed-price quote within 48 hours, no obligation, no sales calls.