Oil boiler repair, maintenance and annual inspection in Marlboro and the wider Johannesburg area. Same-day response for commercial and industrial plant across Gauteng.
Local Service
Our certified technicians service oil boilers across Marlboro and the Johannesburg region — from standby steam for hospitals to mining process steam. We carry common burner spares, safety valves and controls for major brands including Cyclotherm, John Thompson, Allmech, Bosch. Annual inspection, combustion analysis, tube cleaning and emergency breakdown response are all available in Marlboro.
Brands
Our Service
Troubleshooting
Likely causes
What to check
Inspect the photocell lens, draw a fuel sample from the tank bottom, and check the nozzle size against the commissioning sheet.
When to call us
After two lockouts in a week — repeated resets risk an unburnt-fuel firebox explosion.
Likely causes
What to check
Take a flue gas analysis — high CO with low excess O2 confirms incomplete combustion.
When to call us
Immediately: sooting fouls tubes fast, cuts efficiency and creates an air quality compliance issue.
Likely causes
What to check
Log flue gas temperature — a rise of 20 °C over baseline usually means roughly 1% efficiency lost.
When to call us
Book a clean and combustion tune; the fuel saving normally covers the service cost.
FAQ
Yes — including fuel heating and viscosity control, steam-traced lines, HFO burners and the extra fireside cleaning frequency that HFO demands.
Often yes. A dual-fuel burner lets you switch between gas and diesel by price or supply security. We assess the boiler shell, furnace rating and controls before quoting.
Diesel-fired plant typically every 6 months; HFO plant every 3 months or sooner, driven by flue gas temperature rise rather than the calendar.
Nearby Areas
Send nameplate photos and we quote within 24 hours.
Get a Free QuoteCall 067 603 9306