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Generator Repairs & Servicing in Sandton
Diesel and petrol sets, changeover and UPS backup — kept reliable for Sandton offices and homes by technicians qualified in both electrical and mechanical work.
Electrical + mechanical 5–1500 kVA serviced 24/7 breakdown support
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Sandton · Johannesburg
Business-grade generator support for Sandton
In Sandton, downtime has a price tag. A stalled generator on the Rivonia Road corridor can stop a trading floor; in the towers around Sandton City and Nelson Mandela Square, tenants expect the lights, the lifts and the servers to carry on regardless of the grid. Out in the leafy homes of Morningside and Bryanston, a standby set or inverter is simply how an evening stays normal. All of it depends on one thing: the generator starting, holding the load and switching over cleanly, every time.
Electromech extends its service from its East Rand base into Sandton and the northern suburbs, repairing, servicing and maintaining diesel and petrol generators with technicians qualified in both the mechanical and electrical trades. We fix the engine and the switchgear, source spares from the original manufacturer, and sign the electrical work off to SANS standards.
Repairs, servicing & more
Everything your generator needs, in one team
From home standby units to commercial sets — 5 kVA to 1500 kVA.
Changeover & ATS
When the generator runs but the office stays dark, the transfer switch is the usual cause. We repair manual and automatic changeovers for a seamless hand-over.
Servicing & testing
Scheduled services with a proper load test, keeping business-critical sets ready rather than reactive.
Alternators & controls
No-output alternators, unstable voltage and controller faults — the electrical depth that keeps a commercial set dependable.
Maintenance plans
Service agreements for offices, complexes and body corporates, with optional diesel fill and preventative servicing.
Generators & backup →
UPS & inverter backup
Beyond the genset, we work on inverter and UPS backup so critical systems ride through the switch-over cleanly.
Continuity is the point
Keeping Sandton businesses running through an outage
For a commercial tenant, backup power isn’t a convenience — it’s continuity. That’s why the engine and the electrical side both have to be right, and why single-trade repairs so often leave a gap. Our technicians carry both skill sets, so we diagnose across the whole system, coordinate around your operating hours, and get critical power back with as little disruption as possible. Where a job needs the wider electrical picture, our commercial and industrial team steps in.
We can also advise on right-sizing and safe integration if you’re expanding your backup power setup.
Commercial & industrialWhy Sandton calls us
Depth on both sides of the machine
Electrical + mechanical
One qualified team for engine, alternator, changeover and controls — nothing falls between the trades.
Work around you
Servicing and repairs scheduled to suit trading hours and building access, minimising disruption.
Genuine spares
Parts from the original manufacturer keep repairs lasting and reliability high.
24/7 breakdown support
When a business-critical set goes down, our standby team is reachable around the clock.
5–1500kVA sets serviced
24/7Breakdown support
2Trades, one team
0+Years’ experience
Explore
More across Sandton & nearby
Sibling services, suburbs and popular pages.
Sandton electrical
A general electrician in Sandton or an urgent emergency call-out.
Local suburbs
Electricians in Morningside and Rivonia.
Nearby towns
Generator repairs in Bedfordview and Kempton Park.
Backup & solar
Extend cover with backup power and solar with battery storage.
All service areas
Every area we cover is on our service areas hub.
Talk to us
Contact Electromech for a quote, or read about our team.
FAQs
Generator Repairs in Sandton — frequently asked questions
Quick answers to the questions we hear most in Sandton. Search or browse below.
What size generators do you work on?
A wide range. We service and supply sets from around 5 kVA up to 1500 kVA, and we repair and maintain standby plant of 100 kVA and up for larger Sandton offices and commercial buildings — as well as the smaller diesel and petrol units common in homes and small businesses.
Do you repair both the engine and the electrical side?
Yes, and that's a real advantage. Our technicians are qualified in both electrical and mechanical work, so a generator fault doesn't need two separate contractors. We handle the engine, the alternator, the control panel and the changeover as one job.
Can you fix a changeover or ATS that isn't switching to the generator?
We can. A generator that runs but never takes the load, or an automatic transfer switch that doesn't fire when the grid drops, is one of the most common call-outs we get in Sandton. We diagnose the changeover logic, contactors and sensing, and get it transferring reliably.
Do you offer generator servicing and maintenance contracts?
Yes. Regular servicing — oil and filters, belts, coolant, battery, load testing and a changeover check — is what keeps a standby set starting first time. For offices and complexes that depend on backup power, we can work to a scheduled maintenance plan rather than waiting for a breakdown.
My generator won't start during load shedding. Can you help?
Often the culprit is a flat or failing battery, stale or contaminated fuel, a clogged filter or a fault on the control panel. Call us — for genuine backup emergencies we respond on our 24/7 line, and we'll get you running and then sort the underlying cause.
Do you also work on UPS and inverter backup?
Yes. Many Sandton offices pair a generator with a UPS to bridge the seconds during changeover, and homes in Bryanston and Morningside often run inverter-battery backup. We service, repair and integrate these with the generator so the whole backup chain works together.
Are you based in Sandton?
We're based on the East Rand in Ekurhuleni and extend our generator service to Sandton and the northern suburbs. Our technicians are used to the run into the CBD, Rivonia, Woodmead and the surrounding residential estates, and we quote honestly before any work starts.
No matching questions — try a different word, or just contact us.
Business continuity
Keep your Sandton generator ready for anything
A no-start in Morningside, a stuck changeover in the CBD, or a service that’s overdue — we’ll sort the engine and the electrics together. Call, request a quote, or WhatsApp us.