Hot water boiler repair, maintenance and annual inspection in City Deep and the wider Johannesburg area. Same-day response for commercial and industrial plant across Gauteng.
Local Service
Our certified technicians service hot water boilers across City Deep and the Johannesburg region — from hospital and clinic domestic hot water to wash-down and cip hot water. We carry common burner spares, safety valves and controls for major brands including Bosch, Viessmann, Hoval, Allmech. Annual inspection, combustion analysis, tube cleaning and emergency breakdown response are all available in City Deep.
Brands
Our Service
Troubleshooting
Likely causes
What to check
Check the pressure gauge cold vs hot, inspect the relief discharge pipe for water, and press the expansion vessel schrader valve for water instead of air.
When to call us
If make-up water is being added more than monthly — continuous fresh water introduces oxygen and destroys the boiler internally.
Likely causes
What to check
Compare flow and return temperatures — a wide differential with a low flow usually means restricted circulation.
When to call us
When flushing and pump adjustment don't restore the design differential, the exchanger likely needs chemical descaling.
Likely causes
What to check
Time the burn cycles — under three minutes indicates short-cycling that shortens component life sharply.
When to call us
For sequencing, buffer vessel sizing or a modulating burner retrofit — short-cycling wastes significant fuel.
FAQ
Annually as a minimum, and twice a year for hospital, hotel and 24-hour plant. Each service includes combustion analysis, safety device testing and a water quality check.
Yes, where reticulated gas or an LPG installation is viable. We size the burner, handle the gas train, commissioning and the certificate of compliance.
We set and verify storage and distribution temperatures, service the mixing valves and can implement a thermal disinfection routine as part of a maintenance contract.
Nearby Areas
Send nameplate photos and we quote within 24 hours.
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