Electrical Installations

Types of electrical installation we handle

Domestic wiring

For new houses and maisonettes we plan lighting, socket and cooker circuits around how you will live in the space, including outdoor lights, water heaters, booster pumps and gate motor supplies. For apartment developers we wire each unit to a consistent standard with separate metering provisions.

Commercial wiring

Shops, offices, salons, restaurants and clinics need more sockets, dedicated circuits for equipment and lighting that suits the business. We plan these around your fit-out and keep data and power runs separate.

Industrial wiring

Workshops, factories and stores often run three-phase machines, motors and heavy loads. We install sub-mains, isolators and motor supplies, and coordinate with your power control and DB board requirements.

Rewiring

Older buildings in established areas often still have rubber or cloth-insulated cable, no earth on some circuits and fuse boxes with no RCD. Rewiring replaces the hidden risk with a modern, protected installation. We can rewire in phases for occupied homes or businesses.

How to choose the right scope

Start with what the building will carry in five years, not just today. Extra sockets, an electric shower, a borehole pump, air conditioning or a future solar system all change cable sizes and board layout. Planning for them now costs far less than chasing walls later.

Electrical inspection, testing and certification support

Inspection and testing tells you whether an installation is safe, whether it was done by us or by someone else. It is useful before buying or letting a property, after a fire or flood, when insurers ask for it, or when breakers keep tripping with no obvious cause. We provide a written summary of findings with recommended fixes in order of priority.

For new connections and upgrades, KPLC and other bodies may require a completion and test certificate signed by a licensed electrical contractor. We prepare the installation and test records to the standard needed and will tell you plainly, at quotation stage, how certification will be handled for your project.

What affects the cost of electrical installation

• The number of points (lights, sockets, switches) and dedicated circuits.
• Single-phase or three-phase supply and the size of the main board.
• Wall and ceiling type, and whether work is surface conduit or concealed.
• Whether the building is new, occupied or needs old wiring removed.
• Backup power such as a UPS, inverter or changeover switch.

As an indicative 2026 guide, wiring a new three-bedroom house is often in the range of KES 120,000 to 300,000 including materials, and a small office fit-out may be KES 80,000 to 250,000. These figures depend on site; confirm with a free site survey.

Who it is for

• Homeowners building, extending or fixing a house with recurring electrical faults.
• Landlords and developers who need consistent, inspectable wiring across many units.
• Businesses and contractors who need a dependable electrical subcontractor for fit-outs.
• Schools, churches and clinics with older buildings and growing equipment loads.

UPS and backup power

Outages are a fact of life on the KPLC grid, especially during the rainy season. We install UPS units for computers, routers, CCTV and point-of-sale equipment, and inverter systems with battery banks for wider backup. For longer cuts, we design changeover to solar systems or a generator.

Aftercare

Electrical installations need periodic checks, especially in busy commercial premises. We offer inspection visits to tighten terminations, test RCDs and spot heat damage early. Cable, breakers and accessories are also available through the Nerpax shop for contractors who prefer to buy materials directly.