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ProService Generator Repairs

Scheduled Maintenance · Gauteng

Generator Maintenance Contracts and SLAs in Gauteng

Make sure your generator starts when the power fails. ProService Generator Repairs provides customised generator maintenance contracts and service level agreements (SLAs) for businesses, estates and homes across Johannesburg, Pretoria and Gauteng. We inspect and assess your generator, advise on what it needs and quote a contract built around it. There are no fixed packages.

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

  • Customised to your generator
  • Assessed before we quote
  • Written record of every visit
  • Contract clients scheduled first
Large cream canopied diesel generator with service doors open on a blue engine, one person working beside oil containers

The Service

Preventative maintenance so your generator never lets you down

Most generator failures during a power cut were already developing for weeks: a battery losing charge, diesel going stale in the tank, a coolant leak, or a controller alarm nobody saw. A maintenance contract finds those problems while the mains is still on, so the generator starts and carries the load when you need it.

We start by inspecting and assessing your generator: its condition, capacity and usage, and what you need from it. Then we set a schedule, book every visit, and keep a record of what was checked and found. Each visit covers the items that engine is due for, plus a controlled start, battery and charger tests, cooling and fuel checks, and the controller and ATS where fitted.

Contracts suit offices, retail and shopping centres, body corporates and security estates, hospitals and clinics, schools, hospitality, data and telecoms rooms, factories and anyone who cannot afford a failed start. Home owners with a standby generator can also book planned annual visits.

Every maintenance contract or service level agreement (SLA) is customised and quoted in writing. There are no fixed packages or prices. If the generator breaks down between visits, contract clients are scheduled first, and preferred labour rates may apply. Either party can cancel with 30 days’ notice, so you are never locked in.

Want a maintenance contract quote?

Call or WhatsApp 082 057 4605 with your generator size and site. We assess the generator and quote a contract built around it.

Call 082 057 4605WhatsAppRequest a Quote

The Distinction

Servicing, maintenance and repairs

  • Servicing

    One booked visit to service the items that engine needs at that point in its schedule.

  • Maintenance

    A regular cycle of visits, with readiness checks, tests and a record kept for that generator.

  • Repairs

    A visit that starts from a fault. It can be combined with a maintenance visit when a fault is found.

How It Works

How a maintenance contract is put together

  • 01

    Inspect

    We inspect the generator where it stands: engine, alternator, controller, battery and charger, cooling, fuel and the ATS where one is fitted.

  • 02

    Assess

    We assess its condition, capacity and usage: how many hours it runs, what it has to carry and how critical a failed start would be.

  • 03

    Advise

    We explain what the generator needs and how often, and agree your requirements: visit frequency, testing, records and how breakdowns are handled.

  • 04

    Quote

    You receive a customised written quotation for the contract or SLA. There are no fixed packages or prices, and nothing starts until you accept it.

Your Contract

What a maintenance contract or SLA sets out

  • Visit schedule

    How often we visit, set by the engine maker’s schedule, the running hours and how the generator is used.

  • Work on each visit

    The servicing, start, battery, cooling, fuel and controller checks each visit includes for that generator.

  • Load testing

    Whether and how often the set is proven under load, by a building transfer or a load bank test.

  • Records

    A written record of what was checked, found and replaced, for budgets, audits, trustees and insurers.

  • Breakdowns

    How faults between visits are handled. Contract clients are scheduled ahead of new callouts.

  • Notice period

    Either party can cancel with 30 days’ notice. Work already completed stays payable.

What Is Covered

What scheduled maintenance covers

  • 01

    A schedule built for your generator

    Visit dates follow your engine, its running hours and the manufacturer schedule. We book them, so you never have to remember.

  • 02

    Priority when something fails

    If the generator breaks down between visits, contract clients are scheduled ahead of new callouts.

  • 03

    Agreed rates

    Contract clients may qualify for preferred labour rates. The rates are set out in writing when we quote your contract.

  • 04

    A record of every visit

    What was checked, what was found and what was replaced is recorded for each generator, useful for budgets, audits and insurers.

  • 05

    Faults caught early

    A weak battery, a slow leak or a controller warning is found while the mains is still on, explained, and quoted before any extra work.

  • 06

    Right-sized for the machine

    A home petrol unit, an office standby diesel and an industrial set each get a contract built around their condition, duty and hours.

Who It Suits

Sites that benefit from scheduled maintenance

  • Offices and retail

    Office parks, shops, shopping centres and warehouses that must keep trading.

  • Body corporates and estates

    Complexes and security estates with shared standby power for gates, lifts and pumps.

  • Healthcare and education

    Clinics, practices and schools where a failed start affects people, not only stock.

  • Industrial operations

    Factories and processing plants running large three-phase diesel sets.

  • Hospitality

    Hotels, lodges, restaurants and guest houses that cannot go dark on guests.

  • Homes with standby power

    Residential standby generators kept ready with planned annual visits.

Call 082 057 4605Request a Quote

Before a quote

What a maintenance quotation needs

  • The make, model and kVA from the data plate (a photo is ideal)
  • Running hours, and the date of the last service if you know it
  • Whether the set is standby or runs as a main power source
  • How often it runs and what it has to carry
  • Access to the set and who will be on site
  • Whether a test that transfers the building onto the generator is allowed
  • Any logbook or earlier service records

Downtime

Planning around the time the set is stopped

While a standby generator is being serviced it cannot cover an outage, so the visit is timed for when the site can manage without backup for a short while. Published outage or load-reduction schedules, quiet trading hours and weekends are the usual choices.

If the building is to be transferred onto the generator as a test, that is agreed in advance with whoever is responsible for the site, because equipment and people inside are affected.

Not sure whether a visit is due? The service due checker compares the hours and date of the last service with the interval in the manual.

Before the next outage

Preparing a generator for power outages

These are checks an owner can make safely from outside the canopy. Anything that needs a panel opened, the fuel system touched or the cooling system opened is a technician’s job.

  • Check the fuel level on the gauge and plan deliveries before a long outage. Never refuel a running or hot generator.
  • On a standby set, confirm the controller is in Auto and that no alarm is showing. Photograph any alarm and send it to a technician.
  • Look for the battery charger’s indicator light, if your set has one, to confirm it is powered.
  • Keep the canopy air inlets and outlets clear of leaves, boxes and nests.
  • Make sure everyone knows where the emergency stop is and that the set can start by itself at any time.
  • Portable sets run outdoors only, away from doors, windows and vents, because exhaust contains carbon monoxide.
  • Never connect a portable generator to house wiring through a plug. A changeover switch fitted by a registered electrician is the safe connection.
  • Check whether a service is due before the outage season, not during it.

Common Questions

Generator maintenance questions

What is a generator maintenance contract?

An ongoing agreement, customised for your generator, under which we schedule and carry out regular visits: servicing when due, start and battery tests, cooling and fuel checks, and a record of what was found. A one-off visit is booked as generator servicing.

Do you offer service level agreements (SLAs)?

Yes. An SLA sets out the visit schedule, the work on each visit, load testing, records and how breakdowns are handled. Each one is customised after we assess the generator and agree your requirements.

Does a standby generator need maintenance if it rarely runs?

Yes. A generator with low hours can still have a flat battery, stale diesel or a perished hose. Contracts are built around time as well as running hours, so a set that sits is still checked.

How often are maintenance visits?

Most standby sets get a full service once a year with interim checks between visits, and high-hour or critical sites are visited more often. The manufacturer schedule for your engine sets the exact interval.

How much does a maintenance contract cost?

There are no fixed packages or prices. We inspect and assess the generator, its condition, capacity and usage, and your requirements, then quote the contract in writing. As a guide to a single visit, a basic service is typically R900 to R1,800.

Do you test the generator on each visit?

Yes. Each visit includes a controlled start and an output check where the site allows. A full load bank test can be added when you need to prove the set under load.

Can maintenance include the ATS?

Yes. Where an ATS is fitted, its alarms and settings are checked. A transfer test that switches the building over is done only when it has been agreed with the site.

What happens if the generator fails between visits?

Contract clients are scheduled ahead of new callouts, and preferred labour rates may apply. The fault is diagnosed and quoted before repair.

Am I locked into a long contract?

No. Either party can cancel a maintenance agreement with 30 days’ written notice. Work already completed stays payable.

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

Call 082 057 4605WhatsAppRequest a Quote

Related Services

Other generator services

Service Areas

Scheduled maintenance across Gauteng

Maintenance contracts cover generators across Gauteng. Choose your area for the sites we look after there and how a plan is arranged locally.

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.

Maintenance Contracts

Arrange a maintenance assessment

Send the make, model, kVA, running hours and how the set is used. We assess the generator and quote a customised contract or SLA in writing.

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

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  • 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.