Building In County Wexford
Wiring a New Build in Wexford. A Rural Site Adds Three Circuits.
Wexford completed 979 one-off houses between 2023–2025, more than any county we cover. A site outside a town boundary usually has no mains sewer and often no mains water, and that puts a treatment plant, a well pump and a long ESB run on the schedule before anyone counts a socket.
3,087
New homes, 2023–2025
Completed across County Wexford
979
Were one-off houses
31.7% of the county's completions
854
Built around Gorey
The busiest part of the county
Source: CSO new dwelling completions, 2023–2025. Data pulled 2026-08-05.
What A Rural Site Adds
Three things a scheme house never has to carry
An estate house connects to mains water, mains drainage and a network that is already at the boundary. A one-off on a rural site does none of those, and each substitution is an electrical load with its own circuit and its own failure mode.
The wastewater treatment plant
No mains sewer means your own treatment system, and a modern packaged plant is not a passive septic tank. It runs an aerator more or less continuously and a pump on demand, both of which need a dedicated, protected circuit run out to wherever the plant sits. That is usually well away from the house, so it is a cable route across a site that may not be dug yet. Agreeing the position at first fix costs nothing. Discovering it after the drive is laid costs a great deal.
The well or borehole pump
Where there is no mains water there is a pump, a pressure vessel and usually a filtration or UV treatment unit, all of which draw power and all of which want their own circuit rather than a spur off whatever was nearest. A borehole pump in particular is a substantial motor load starting against head pressure. It is worth sizing properly rather than assuming, because an undersized supply to a well pump is a fault that only shows up in the dry part of the summer when the pump is working hardest.
The ESB Networks connection
This is the single most commonly forgotten line in a self-build budget, and the one we get asked about after it has become a problem. It is a separate cost paid directly to ESB Networks rather than to your electrician, quoted per site, and driven by the distance from your site to the nearest network, whether the run is overhead or underground, and the capacity you need. It cannot be estimated from a house type. It also carries a lead time, and the house cannot be energised without it, so it belongs in the programme at the same point as the drainage design rather than at the point somebody wants the power on.
Why there is no ESB connection figure on this page
It is quoted per site by ESB Networks and paid directly to them. On a rural Wexford site the distance to the network, and whether the run is overhead or underground, swing the number enormously, so any figure published here would be wrong for most people reading it. Apply early, get their number, and we price the work inside the house against it.
Decide These On Paper
Five decisions that are cheap now and expensive later
Not before plasterboard, but at design stage, while the drawings can still change for free. Every item here is a drawing amendment today and built work in six months.
How many sockets, and where
The spec is the price on a new build, far more than floor area is. Two sockets per bedroom against six changes the figure materially, and adding them later means chasing a finished wall. Be more generous than feels sensible at the drawing stage; it is the cheapest it will ever be.
Where the board goes, and how many spare ways
Somewhere accessible, not behind a fitted wardrobe or at the back of a hot press. Spare ways matter more than people expect on a rural build, because the treatment plant, the well pump and later an EV charger each need one, and a board with none means a second board later.
EV provision, which is now a requirement
Electric vehicle recharging infrastructure has been required in new Irish dwellings since 1 November 2022, under the Building Regulations (Part L Amendment) Regulations 2022, S.I. 535/2022. Read it carefully: it requires infrastructure enabling a charge point to be added later, not a charge point. Going beyond the minimum at first fix, with a proper EV way and cable while the walls are open, costs a fraction of retrofitting it.
The heating strategy, before the circuit design
A heat pump adds a sustained load that has to be designed for from the start rather than added to a board afterwards, and it usually sits alongside a hot-water cylinder with an immersion and often solar PV. Circuit design and load calculations follow the actual heating and hot-water strategy rather than a generic template, which means the mechanical decisions need to be made before the electrical ones are finalised.
Outdoor: the drive, the shed and the gate
Rural sites are longer. External lighting along a drive, a supply to a shed or garage, gate automation and outdoor sockets are all cheap while the ground is open and expensive once it is landscaped. Decide the positions before the digger leaves rather than after.
The national new-build guide
The full design-stage spec checklist, the NZEB heating-load section, and the developer side of the work.
Who You’re Dealing With
Why this job is safe with us
We deliver full electrical packages from first fix to final cert, including a 90-unit residential development in Dublin, certified unit by unit. The same crew and the same standard run a one-off house.
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
Largest completed package
90-unit residential development, Dublin
Full electrical package, first fix to completion · Completed 2026
Building in Wexford: what we get asked
What does the electrical package cost on a new build in Wexford?
It is quoted from the drawings rather than estimated from the house type, because on a new build the spec is the price. The number of sockets, light points, switches, data outlets and appliance circuits you specify changes the figure more than square footage does, and two identical houses can differ substantially. What can be said generally is that a new build costs less per point than rewiring the same house, because there is no strip-out, no chasing into finished walls and no making good afterwards. Send drawings and you get a fixed price back within 48 hours.
How much is the ESB Networks connection?
We will not put a figure on it, and it is worth explaining why. It is quoted per site by ESB Networks, paid directly to them rather than to us, and driven by the distance from your site to the nearest network, whether the run goes overhead or underground, and the capacity you need. On a rural Wexford site those variables swing the number enormously, so any figure we published would be wrong for most readers. Apply to ESB Networks early: it carries a lead time and the house cannot be energised without it. Once you have their number we can price the work inside the house against it.
Does a treatment plant really need its own circuit?
Yes, and it is worth treating as a real part of the electrical scope rather than an afterthought. A packaged wastewater treatment plant runs an aerator more or less continuously and a pump on demand. Both need a dedicated, protected supply, run out to wherever the plant is positioned on the site. The two things that make it awkward are that the plant is usually well away from the house, and that its position is often finalised late. Agreeing the route while the ground is open is straightforward. Doing it after the drive is laid is not.
We are on a well. What does that add?
A pump, a pressure vessel and usually filtration or UV treatment, all drawing power. The pump is a motor load starting against head pressure, so it wants correct sizing and its own circuit rather than a spur off the nearest socket. The failure mode worth avoiding is an undersized supply that works fine most of the year and then shows up in the dry part of the summer when the pump is running hardest. We size it from the pump specification rather than a rule of thumb.
Is EV cabling actually required now?
Yes, for anything built since 1 November 2022. The Building Regulations (Part L Amendment) Regulations 2022, S.I. 535 of 2022, require electric vehicle recharging infrastructure in new dwellings so a charging point can be added later without tearing anything up. For a single new house with parking within its curtilage, that infrastructure has to be there. The nuance worth understanding is that the requirement is for infrastructure rather than for a charger: a house built to it has ducting and a route, not something on the wall. It is worth going beyond the minimum while the walls are open.
When do you need to be involved?
At design stage, not at first fix. By the time the walls are up the socket count, the board position and the EV provision are already decided by the drawings, and changing them means changing built work. The decisions that cost money later are almost all cheap on paper. We are happy to go through a drawing set with a self-builder before anything is priced; that conversation is usually the difference between a spec you are happy with and one you live with.
Do you work with self-builders as well as developers?
Both, and they are genuinely different jobs. A self-builder is spending their own money, makes every spec decision personally and usually for the first and only time, and wants to talk options through rather than be handed a schedule. A developer needs a crew that hits a programme across dozens of units without supervision. Our largest completed package is a 90-unit residential development in Dublin, and we also wire one-off houses for people building their own home. The crew and the standard are identical; the conversation is not.
What certification do we get?
A Completion Certificate for the installation, with full test results and as-built documentation. It is legally mandatory for electrical works other than minor works, and only a Registered Electrical Contractor may issue one. It also sits on the critical path in a way people do not always expect: ESB Networks require certification before energising a new supply, so the paperwork is not something to leave until after you have moved in.
Where to go next
Written and checked by
Jamie Cowman, Registered Electrical Contractor
Jamie runs J Cowman Electrical Contractors and holds Safe Electric registration A6700, which is what allows a Completion Certificate to be issued on this kind of work. Everything on this page reflects how the job is actually priced and sequenced on site, not a generic specification.
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