Electrical Installations
New builds, renovations, commercial spaces and estate work. DB boards, lighting, plug points, distribution and final testing.
Homes, developments, schools and commercial properties
Powering your world, safely and efficiently.Request a Quote
Cape Town electrical contractor
Electrical, solar and compliance work done properly across Cape Town.
GJS Electrical handles electrical installations, fault finding, solar backup, DB work and compliance for homes, developments, schools and commercial properties.
0+Residential units delivered
0+Solar systems
0+Commercial projects
The GJS standard
Planned for the site. Tested before handover.
Switching the power on is only one step. Circuits still need testing, labels need checking and the handover documents must match the installation.
Solar & Backup Power
Inverters, batteries, solar panels and essential-load backup systems sized around the way the property actually uses power.
Load shedding backup, savings and future expansionFault Finding & Repairs
Tripping circuits, faulty inverters, damaged wiring and DB problems tested before unnecessary parts are replaced.
Clear diagnosis before repair work startsCompliance & Certificates
Electrical compliance checks, remedial work and certificates for homes, businesses, landlords, sellers and project handovers.
Neat paperwork, compliant work and safer properties
Solar and backup
Solar that protects the month-end bill and keeps the essentials running.
Cape Town homes and businesses are dealing with rising electricity costs and the risk of power interruptions. A small backup system can keep essentials running from around R50,000, while larger solar and battery systems can move a property much closer to energy independence.
A typical 8 kWh backup and solar-ready system around R160,000 can make sense for a property spending about R1,800 a month on electricity, with a rough payback window of 7 to 8 years if the system offsets most of that bill. Larger off-grid systems can move beyond R200,000, depending on battery capacity, roof layout and the circuits that need to stay on.
Inverters and batteriesSolar panel installationEssential-load circuitsDB design, permits and compliance
Example planning model8 kWh system
Installed budgetR160,000
Bill offset targetR1,800 p.m.
Annual savingR21,600 per year
Payback range7 to 8 years
Year 0InstallYear 4Break evenaround year 7 to 8Year 10Net savings
Planning example only. GJS confirms loads, DB layout, roof space, permits and compliance before quoting.
Project proof
Estate wiring, school upgrades and commercial solar.
Residential estate
Spartikus Estate
Electrical and solar work across 75+ homes at a residential estate.
School
Cresca Primary School
School electrical installation and upgrades in an active learning environment.
Solar and distribution
R-Labs
Solar, distribution and renewable energy integration.
How GJS works
Plan the cable routes. Coordinate the trades. Test before handover.
School upgrades, solar installations and housing developments all have different site pressures. The sequence changes, but testing, labelling and accountable handover do not.
Based in Milnerton
A real office, a working fleet and crews moving between Cape Town sites.
The vehicles carry the tools, test equipment and materials needed for installations, maintenance and callouts across the city.
Meet the GJS team- Base
- Milnerton
- Coverage
- Cape Town & Western Cape
- Work
- Electrical, solar & compliance
Approved installerGeyserGecko solar water heating
Put daytime solar to work on the geyser you already own.
Water heating is one of the biggest electrical loads in many homes. GeyserGecko works with your existing geyser element, so the geyser does not need to be replaced. It uses solar power when available and switches back to grid when needed.
Three operating modes
Choose hybrid solar and grid support, PV-only solar operation, or standard AC operation when needed.
App control and timers
Set heating times and monitor geyser performance from the mobile app around the household's hot-water routine.
Installed as a complete package
GJS checks the geyser, roof, structure and cable route before installing the panels, controls and electrical connections.
Installed by GJSExisting geyser assessmentPV panels and mountingGeyserGecko controllerElectrical connections and setup
Google reviews
Customers mention neat workmanship, clear updates and after-sales support.
18 Google reviewsView on Google MapsGet GJS on the job
Tell us what the site needs.
Share what needs installing, fixing, testing or backing up. Photos, plans and short voice notes help the team understand the job faster.
Call+27 21 001-9528Emailinfo@gjselectrical.co.za
Office11A Prestige Business Park, 30 Democracy Way, Marconi Beam, Milnerton