How Much Does Electrical Wiring Cost for a House in Nigeria? 2026 Guide

Nigerian electrical wiring is priced per point — a genuinely useful system for budgeting since it lets you count exactly what a house needs room by room, but one that also means the total adds up more than a quick guess based on "a few sockets per room" usually suggests. This guide sets out 2026 pricing per point type, using the same categories priced in our free Electrical Wiring Calculator.

Point Prices, 2026 (Material + Labour Per Point)

Labour is priced consistently per point regardless of type — the same electrician time is roughly needed to run cable and terminate a point whether it is a light switch or an AC circuit — while material cost varies significantly, since an AC or TV point needs heavier-duty cable and specific accessories compared with a basic light switch.

Conduit, Chasing and Wire

Beyond individual points, a complete wiring job needs conduit (PVC pipe protecting cable runs, priced per metre), the cable itself (priced per metre, commonly 2.5mm twin cable for standard circuits), and where concealed wiring is specified, chasing labour — cutting a channel into the wall to bury the conduit, then making good the surface afterward, priced per metre of chase. Concealed (chased) wiring costs meaningfully more than surface-mounted conduit due to this additional labour, but is the standard, expected finish for most Nigerian residential interiors.

Special Packages: Phase Upgrade, ATS, Inverter Wiring, Solar-Ready

Several packaged items beyond basic point wiring are commonly needed in a modern Nigerian home:

• Phase upgrade: upgrading from single-phase to three-phase supply where household load (multiple AC units, larger appliances) exceeds what single-phase can reliably support.
• Automatic transfer switch (ATS): for automatic switching between grid power and a generator or inverter without manual intervention.
• Inverter wiring: dedicated wiring to connect an inverter/battery system to selected circuits in the home, often prioritising essential loads.
• Security system wiring: cabling for CCTV cameras, alarm systems and access control points.
• Solar-ready wiring: pre-wiring a home to accept a future solar installation without needing to break into finished walls later.

Planning for these packages at the initial wiring stage, even if the actual inverter, solar panels or security system will be installed later, is significantly more economical than retrofitting the wiring into a finished, plastered and painted house.

Worked Example: A 3-Bedroom Bungalow

A typical bungalow with 3 bedrooms, sitting room, dining, kitchen and 2 bathrooms:

Total: roughly ₦931,000 for the base electrical wiring on this bungalow, before any special packages like inverter wiring or a phase upgrade are added.

Common Electrical Wiring Costing Mistakes

• Underestimating point count. Counting only obvious sockets and lights while forgetting external lights, fan points and dedicated AC circuits understates the true total significantly.
• Not planning for future needs at initial wiring stage. Retrofitting inverter, solar or security wiring into a finished house costs considerably more than including the conduit and cabling for it during initial construction.
• Choosing surface-mounted wiring to save cost without considering appearance. Concealed wiring costs more due to chasing labour, but is the expected, better-finished standard for most Nigerian residential interiors.
• Skipping a proper distribution board sizing. An undersized distribution board for the actual number of circuits and load can create ongoing electrical safety and reliability issues.

Coordinating Electrical Wiring With Other Trades

Electrical first-fix work — running conduit and cable through walls and ceilings before finishing — needs careful coordination with other trades to avoid costly rework. Chasing conduit into walls should happen before final plastering and painting, not after, since retrofitting concealed wiring into a finished wall means cutting into completed plaster and repainting the affected area. Similarly, ceiling wiring for light points needs to be coordinated with any POP ceiling work, since the ceiling contractor needs to know exact fixture positions before installing the framework and board.

This coordination is particularly important on a project where different trades are managed somewhat independently rather than under a single main contractor's close supervision — a homeowner managing trades directly should confirm the electrician's first-fix work is genuinely complete and confirmed correct before allowing plastering, painting or ceiling work to proceed over it, since the cost of correcting a missed or incorrectly positioned point after finishing work is complete is substantially higher than getting it right before that finishing work begins.

Frequently Asked Questions

How much does it cost to wire a 3-bedroom bungalow in Nigeria?

Base wiring (points, conduit, cable, distribution board) for a typical 3-bedroom bungalow commonly falls in the range of ₦800,000–₦1,200,000, before any special packages like inverter wiring, phase upgrade or security system cabling. Use the calculator with your exact room layout and point count for a specific figure.

Should I plan for solar or inverter wiring even if I can't afford the system now?

Yes — including the conduit and dedicated circuits for a future inverter or solar system during initial wiring, even without installing the actual equipment yet, avoids the significantly higher cost of breaking into finished walls to retrofit this later.

What is the difference between chased and surface-mounted wiring cost?

Chased (concealed) wiring adds the cost of cutting a channel into the wall and making good afterward, on top of the same conduit and cable cost — surface-mounted wiring skips this labour but leaves visible conduit runs on the wall surface, generally considered a lower-quality finish for residential interiors.

Should electrical wiring be done before or after tiling?

Electrical first-fix should be complete before tiling begins, since wall chasing and conduit installation need to happen in the raw wall surface, not after tiles have already been fixed in place — tiling over a wall that still needs electrical chasing risks cracking or damaging the tiles when the chase is eventually cut.

Does adding a generator or inverter later require rewiring the whole house?

Not necessarily, if dedicated circuits and an automatic transfer switch were planned during initial wiring — retrofitting this without prior planning typically means adding new circuits and a transfer switch without needing to touch the existing, already-functioning circuits, though the cost is higher than if planned from the outset.

Does electrical wiring cost differ significantly between Lagos and other Nigerian cities?

Yes, generally following the same regional labour cost pattern seen across other trades on this site — electrician day rates and, to some extent, material availability and pricing, tend to be higher in Lagos and other major urban centres than in many other Nigerian locations.

Should I budget separately for a whole-house surge protector?

A surge protection device at the main distribution board is a worthwhile addition for protecting sensitive electronics from voltage spikes common on unstable grid supplies, and is a modest additional cost relative to the potential expense of replacing damaged appliances and electronics after a significant surge event.

Does the number of storeys in a building significantly change wiring cost per square metre?

Multi-storey wiring needs vertical cable runs between floors and, often, a distribution arrangement serving each floor separately, which can add a modest cost premium per square metre compared with an equivalent single-storey floor area, mainly reflecting the additional length and complexity of the vertical runs.

Does the calculator include smart home or automation wiring?

Standard point-based wiring covers conventional switches and sockets; smart home wiring (structured cabling for networked switches, sensors, and centralised control) is typically priced as a specialist addition on top of standard wiring, and should be planned early if desired, since retrofitting structured cabling into a finished home is considerably more disruptive than standard electrical retrofits.

Should electrical budget be allocated as a fixed percentage of total build cost?

A rough percentage can serve as an early sanity check, but building the figure up from actual point counts and special packages needed, as this guide demonstrates, gives a far more accurate and defensible budget than a generic percentage applied without reference to the specific house's actual electrical requirements or layout.