Irrigation Controller Installation covers fitting, replacing and programming the unit that runs your irrigation zones. It suits systems with a dead or outdated controller, owners wanting Wi-Fi control, and new systems needing set-up. For a full automated system, see automatic irrigation systems.
Send your controller details once and compare quotes.
Compare Controller QuotesWhat the Job Includes
- Checking compatibility: stations, valve voltage, sensor inputs, pump start relay.
- Mounting indoors or in a weatherproof enclosure near power.
- Connecting and labelling zone wires and common.
- Testing each valve opens and closes.
- Connecting rain or soil sensors.
- Programming start times, run times and watering days.
- Handover, including app set-up for Wi-Fi models.
Controller Types
| Type | Features |
|---|---|
| Basic timer | Fixed stations, simple programmes |
| Modular | Add station modules as zones grow |
| Smart Wi-Fi | App control, weather adjustment, alerts |
| Battery (valve-mounted) | No mains power at the valve, one or few zones |
Problems It Solves
- Dead or erratic controller.
- Zones running at the wrong times.
- Programme lost after power cuts.
- No way to water less in winter without reprogramming.
How It Works
- Send photos of the old controller, wiring and model number.
- Contractor confirms a compatible replacement.
- Compare quotes and appoint.
- Install, wire and test each zone.
- Programme and hand over.
Controller Prices
| Controller job | Ballpark price |
|---|---|
| Basic timer replacement | R1,800 - R3,200 |
| Modular controller replacement | R2,500 - R5,000 |
| Smart Wi-Fi controller replacement | R3,500 - R8,000 |
| Programming and set-up | R280 - R750 |
| Controller repair | R450 - R3,500 |
| Soil moisture sensor | R800 - R1,500 |
Ballpark figures, not quotations. Ranges compiled from price guides published by South African irrigation, building-cost and quote websites, checked 19 October 2026 and rounded where needed. They are not our prices and no contractor is bound by them. Replacement ranges include the unit and fitting. New power points and long new cable runs are usually extra. Published guides vary widely, so treat the ranges as a sanity check only. None of the sources state whether VAT is included, so confirm VAT on every quote.
Sources:
- The Handyman Johannesburg, irrigation controller repair prices (January 2026)
- Myriad Green, prices and estimations (updated July 2026)
- The Handyman Johannesburg, irrigation system installation price (updated February 2026)
What Affects the Price
- Number of stations.
- Smart features.
- Wiring condition.
- Sensors and pump relays.
What to Send with Your Enquiry
- Photo of the controller and its wiring.
- Brand and model.
- Number of zones.
- Your town or suburb.
Compare installers through Irrigation Installation South Africa or see the Irrigation Systems South Africa overview. Valve or wiring faults: irrigation repairs.
Frequently Asked Questions
Can I replace my controller with a different brand?
Usually, if the new one has enough stations and works with your valves' voltage. Most residential valves are 24 V AC.
How many stations do I need?
At least one per zone, plus spare for future zones. Modular controllers let you add stations later.
Why does my controller lose its programme?
A flat backup battery or power surges. Replace the battery and consider surge protection.
Can a controller be installed outside?
Only an outdoor-rated model, or an indoor model in a weatherproof box.
Will a smart controller work with my old valves?
Usually yes, if the valves and wiring are sound. The contractor tests each valve when connecting it.
Related Services
Irrigation Installation South Africa is a free quote-comparison service. Work is assessed, quoted and carried out by independent contractors, and your agreement is with the contractor you appoint. Ask each one for a written quote, what is and is not included, proof of insurance and the payment terms before paying anything.
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