Home & Building Wiring — done properly, once.
Mastech is first and foremost an electrical wiring company. From bare shells to occupied homes, we design, install and certify the wiring that powers everything else — solar, smart-home, CCTV, EV.
The prettiest solar system means nothing on top of bad wiring.
Nine out of ten "solar problems" we're called to fix in Nigeria are actually wiring problems — undersized cables, missing earths, mixed neutrals, corroded joints in ceilings. We solve the root cause, not the symptom.
- Certified installations that pass insurance & bank valuations
- Copper conductors sized to real Nigerian voltage swings
- RCD/RCBO protection on every final circuit
- Dedicated earth pit + Type-2 surge protector
- As-built drawings and 5-year workmanship warranty
What we wire
First-fix and second-fix wiring for private homes, duplexes and terraces — designed to code and future-proofed for solar, EV chargers and smart-home.
Multi-unit residential estates, offices, retail, schools and worship centres. Riser cables, sub-DBs and metered tenant panels.
Ripping out unsafe aluminium runs, brittle rubber insulation and DIY joints — replacing with certified copper, RCBOs and modern conduits.
Split-load consumer units, MCBs, RCDs, RCBOs, surge protection and neat labelling — the safest heart of your home's electrics.
Additional sockets, AC points, boys'-quarters extensions, ceiling fans, chandeliers and decorative circuits — done clean, no chased mess.
Dedicated earth pits, equipotential bonding and Type-2 SPDs to protect appliances from lightning and Nigerian grid spikes.
Thermal-imaged inspections, insulation-resistance and continuity tests, plus written electrical certificates for insurance & sale.
Working from an architect's plan? Our engineers coordinate with builders, plumbers and finishers so wiring never gets buried in a wall the wrong way.
How a Mastech wiring project runs
Free on-site walkthrough — we count rooms, appliances, future loads and existing supply.
Load schedule, single-line diagram and a fixed itemised quote — no vague estimates.
Conduits, back-boxes and cable pulls before plastering. Neat, labelled, tested.
Sockets, switches, DBs and light fittings after finishes. Continuity & insulation tests on every circuit.
Live tests, RCD trip checks, thermal scan and a signed Mastech certificate handed over with as-built drawings.
Full first & second-fix wiring, DB, earthing, ~24 points.
Zoned circuits, sub-DBs per floor, AC & solar-ready lines.
Strip-out, new copper runs, sockets, testing & certificate.
Indicative prices — every project gets a fixed quote after the free site survey. VAT and materials scoped to spec.
Wiring questions we hear every week
A 3-bed bungalow with occupants is typically 5–7 working days; a fresh shell is faster because we can chase walls before plastering.
Yes — Mastech installs and certifies wiring in every state in Nigeria. Long-haul jobs get a mobilisation line-item so pricing stays transparent.
That's exactly how we design. Every DB leaves a solar tie-in port and a dedicated 32A future-EV run so nothing has to be re-chased.
Yes. Every project ends with test sheets, a signed electrical certificate and as-built drawings — banks and insurers accept them as proof of a compliant install.
Ready to wire it right?
Book a free wiring survey — an engineer will visit, take measurements and email you a fixed itemised quote within 24 hours.