Free Irrigation System Calculator
Estimate the cost of installing a garden irrigation system and your likely seasonal water costs. Built for UK conditions with a realistic 3-month irrigation season and current UK water tariff rates.
Typical residential garden in Rugby: 50–500 m²
Typically 1 zone per 30–50 m²
Results are indicative estimates. Get a written quote for your specific site.
Irrigation calculator FAQ
How accurate is the irrigation cost estimate?
The calculator provides indicative figures. Installation costs in the UK vary with soil type, existing infrastructure, water pressure and garden complexity. A professional site survey is needed for an accurate quote — Branchard offers this free of charge.
Do I need planning permission for an irrigation system in Rugby?
In most cases, no. A standard in-ground garden irrigation system falls within permitted development. If you are connecting a rainwater harvesting tank or making changes near a boundary, it's worth a quick check with Rugby Borough Council.
How long does irrigation system installation take?
A typical residential system covering 200–500 m² takes 2–4 days to install. This includes laying pipework, installing zone valves and head positions, connecting to the water supply and programming the controller.
Is a smart controller worth the extra cost in a UK climate?
Generally yes. Warwickshire weather is unpredictable — smart controllers that read local weather data skip unnecessary watering after rain and optimise run times by season. Most customers see 20–30% water savings, covering the extra cost within 2–3 seasons.
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