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ProService Generator Repairs

Generator Servicing · Gauteng

Generator Servicing Across Gauteng

Keep your generator ready for the next power cut. ProService Generator Repairs services diesel and petrol generators on site in Johannesburg, Pretoria, Sandton, Centurion, Midrand and across Gauteng: oil, filters, coolant, the battery and a running test, matched to your engine. A basic service typically costs R900 to R1,800. Generator already broken? Book a repair instead.

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Callout fee waived when you accept our written quote. 1-year workmanship guarantee. See prices

  • Oil & filter change
  • Coolant system check
  • Battery & charging test
  • Tested before we leave
Diesel generator with the canopy raised, showing the engine and alternator

The Service

Generator servicing that prevents breakdowns

A generator that has not been serviced is the one that fails when the power goes off. Old oil, clogged filters, low coolant and a tired battery are the most common reasons a standby set will not start or cuts out under load, and all of them are caught on a routine service.

We service diesel and petrol generators at your home or business across Gauteng. The checklist is matched to your engine, its running hours and the manufacturer schedule: oil and filters, coolant and radiator, belts and hoses, battery and charging, the fuel system, the controller, and the ATS or changeover where fitted. The generator is started and run before we leave.

As a guide, a basic service is typically R900 to R1,800, depending on the size of the generator and the oil and filters it takes. Large diesel sets cost more than small petrol units. You get a written quote before the visit, and any fault found during the service is explained and quoted separately, never fixed without your approval.

To book, send us the brand and model, the kVA if you know it, diesel or petrol, the running hours on the meter and any alarms or leaks you have noticed. If you would rather not track service dates yourself, a maintenance plan books the visits for you.

When was your last service?

Book a service and keep your generator ready for the next outage.

Call 082 057 4605WhatsAppRequest a Quote
Want us to track it for you?About scheduled maintenance

What's Included

What a generator service typically includes

  • 01

    Engine oil and oil filter

    Where the service schedule calls for it, oil is drained and replaced with a lubricant matched to the engine.

  • 02

    Fuel and air filters

    Fuel and air filters are inspected and replaced if they are due or restricted. Different models use different filter sets.

  • 03

    Coolant and radiator

    Coolant level and condition, hoses, and a radiator look-over — important on standby diesels that sit, then run hot.

  • 04

    Battery, belts and charging

    Battery condition, terminals, belt condition and charging output, so the next auto-start is not lost to a flat battery.

  • 05

    Fuel system and controller

    A visual fuel-system check and controller look-over. ATS or changeover operation is checked where the site has one.

  • 06

    Inspection and a running test

    A general inspection, then a run after the service. Not every visit is a full load-bank test — that is a separate service.

How It Works

How a generator service visit works

  • 01

    Book with the details

    Send the brand, model, kVA, running hours and any alarms or leaks, and choose a time when the site can manage without backup for a short while.

  • 02

    Check it as found

    We start and run the set before touching it, and note how it starts, any alarms on the controller, leaks and the state of the battery.

  • 03

    Service what is due

    Oil and filters, fuel and air filters, coolant, belts and hoses, battery and charger, and the controller and changeover where fitted, matched to your engine.

  • 04

    Test run

    We run the set again and check voltage, frequency, oil pressure and temperature. A building transfer test is done only when it is agreed with the site.

  • 05

    Written findings

    You get a record of what was done and replaced, and anything that should be watched. Extra work is quoted before it is done.

  • 06

    Next service date

    We tell you when the next service falls due on the hour meter and on the calendar, whichever comes first.

Generators We Service

Diesel, petrol, gas and three-phase generators

  • Diesel standby generators

    Canopied sets at homes, offices, shops and complexes, including the battery charger and automatic start. Our diesel generator servicing and maintenance page goes into the detail, and standby generator maintenance covers keeping an automatic set ready.

  • Petrol and portable generators

    Open-frame and inverter generators, where stale fuel, spark plugs and carburettors need the most attention. Petrol generator servicing and maintenance has its own page.

  • Gas and dual-fuel generators

    Supported LPG and natural-gas standby sets. Gas pipework and regulators stay with a registered gas practitioner.

  • Three-phase commercial and industrial sets

    Larger diesels on factories, warehouses and plant rooms, with the visit planned around production and access.

Service Intervals

How often should a generator be serviced?

  • Follow the manufacturer

    The engine handbook sets the interval in running hours and months. We work to that schedule for your model.

  • Standby generators

    At least once a year if hours are low, and sooner when long outages add running hours.

  • Prime-power or high-hour sets

    Serviced by running hours, often every few hundred hours, depending on the load and how dusty the site is.

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Inspection

When to get a professional inspection

Some signs mean the generator should be looked at before you rely on it, even if a service is not yet due.

  • An alarm or warning light that comes back after it is reset
  • Leaks, smoke, a new noise or unusual vibration
  • The set has not run under load for months, or it failed its last test
  • The hours or the time since the last service are past the interval in the manual
  • After flooding, a fire nearby, rodent damage or a storm
  • After a fuel delivery that may have contained water or dirt
  • After the set was moved, rewired or connected to a new changeover
  • Before a new load, such as a pump or air conditioner, is added to the generator supply

Do not open panels, the fuel system or a hot cooling system to check these yourself. The symptom finder lists the warning signs that mean you should stop using the set.

Common Questions

Generator servicing questions

What does a generator service include?

The items your engine is due for: usually oil and oil filter, fuel and air filters, coolant and radiator checks, belts and hoses, battery and charging tests, a fuel-system and controller check, and the ATS or changeover where fitted. The generator is then started and run.

How much does a generator service cost?

A basic service is typically R900 to R1,800, depending on the generator size and the oil and filters it uses. An oil and filter change alone is typically R600 to R1,400. You get a written quote before we start. The repair cost guide lists more ranges.

How often should a generator be serviced?

Follow the manufacturer schedule for your engine, in running hours and months. Most standby generators need at least one service a year, and sooner if long outages have added hours.

Can you service my generator at home?

Yes. Servicing is done on site at homes and businesses across Gauteng, so you do not need to move the generator.

Do you service diesel and petrol generators?

Yes. We service diesel standby sets, petrol portables and home units, and supported gas generators, including Cummins, Perkins, FG Wilson, Honda, Ryobi and most other common brands.

What if you find a fault during the service?

We explain what we found and give you a quote. Nothing extra is repaired without your approval, and the service and the repair are priced separately.

Is a load bank test part of a service?

No. A service ends with a start and a running check. A load bank test proves the generator under a controlled load and is booked separately, often on the same visit.

What should I send before booking?

The brand and model, the kVA if known, diesel or petrol, your suburb, the running hours on the meter, a preferred date, and any alarms or leaks you have noticed.

Still unsure what the fault is? Call or WhatsApp 082 057 4605 for onsite diagnosis.

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Related Services

Other generator services

Service Areas

Generator servicing across Gauteng

We service generators on site across Gauteng. Each area below has its own servicing and maintenance page with the suburbs, site types and plans we cover there, and visits are booked for a time that suits you.

What to send before we attend

These details help us plan the visit and bring the right parts. Send what you can on WhatsApp; if you can’t find the model number, we still book the visit.

Location
The suburb or site, so the visit can be booked in the right area.
Make and model
The generator brand and model, if they are known.
kVA
The size printed on the data plate.
Fuel type
Diesel, petrol, LPG, natural gas, or dual-fuel.
Controller model
The module name on the panel, when it is visible.
Fault or alarm
What the set does, and any text on the screen.
Photos
The generator, the data plate, and the controller or alarm. Send these on WhatsApp.

Book a Service

Need Generator Servicing?

Send your generator details and preferred date, or call or WhatsApp 082 057 4605. We service generators across Gauteng.

Photos of the generator and the data plate can be sent on WhatsApp.

Add your email (optional)
  • Free written quote before any work starts
  • Callout fee waived when you accept the quote
  • 1-year workmanship guarantee

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What happens next

  1. We reply with questions about the generator, or to book a visit.
  2. A technician comes to you. For a breakdown we arrive within 1 hour.
  3. The fault is diagnosed on site and you get a written quote. No work starts until you accept it.

Charlie, lead technician: Degree in Mechanical Engineering, Degree in Electrical Engineering, Diesel Plant Fitter. Generator specialists since 2000.