What Irrigation Installation Costs in Sydney

A professionally installed irrigation system in Sydney starts from $1,500 for a small drip setup. The price rises with the size of the garden, the number of zones and the amount of digging involved. This 2026 guide explains what irrigation installation in Sydney costs, what moves the price, and whether it genuinely saves time and water.

We handle irrigation system installation, repairs and maintenance across the Lower North Shore, Northern Beaches and Eastern Suburbs from our base in Neutral Bay. The figures below are guides only, and your actual price comes from a free on-site quote.

Drip, Micro-Spray or Pop-Up Sprinklers?

Most garden irrigation combines two or three outlet types, each matched to what it waters.

Drip irrigation: drip line or individual drippers deliver water slowly to the root zone. It's the most efficient choice for beds, hedges and pots, because little water is lost to wind or evaporation, and the line can sit hidden under mulch.
Micro-sprays: small, low-pressure spray heads on stakes. They suit dense ground covers and mass plantings, but lose more water to wind and are easily knocked or blocked.
Pop-up sprinklers: heads that rise when the zone runs and retract flush afterwards, so you can mow straight over them. An automatic sprinkler system with pop-ups is the standard for lawns, whether established or newly laid turf.

The setup we install most often is drip irrigation for the beds and a garden sprinkler system for the lawn, both run from one controller.

Why Zones Matter

A zone is a group of outlets that switch on together through one valve. Lawns, sunny beds, shady beds and pots need different amounts of water, so each gets its own zone. Drip and sprays shouldn't share a zone either, because they apply water at very different rates.

Your water supply also limits how many outlets can run at once. If your flow only supports six pop-ups at a time, a lawn needing eighteen heads becomes three zones.

What Drives the Cost of Irrigation Installation

Garden size: more lawn and bed area means more pipe, outlets and labour.
Number of zones: each zone adds a valve, wiring and a controller station, making this one of the clearest cost drivers.
Trenching: established gardens are trenched by hand around roots, and getting under paving or driveways means boring underneath or lifting and relaying pavers. This is often the biggest variable.
Controller type: a basic tap timer, a multi-zone controller or a Wi-Fi smart controller.
Water pressure: pressure varies across Sydney, especially between hilltop and low-lying homes. Low pressure can mean extra zones or a pump, while high pressure may need a pressure-reducing valve to protect drip line.
Water source: tank-fed systems need a pump, and mains-connected systems need appropriate backflow prevention to protect the drinking supply.
Access: steep blocks and narrow side passages slow everything down.

Typical Irrigation Price Bands

These bands build up from the $1,500 starting price on our pricing page, assuming reasonable access and no major surprises underground.

Courtyard or small garden

A one- or two-zone drip system for a courtyard, planter boxes or a small front garden typically costs $1,500–$3,000, including a basic controller.

Typical suburban garden

A suburban garden with a lawn and several beds, usually three to six zones, typically costs approximately $3,000–$7,000, depending mainly on trenching and the controller you choose.

Large garden or estate

Large gardens with seven or more zones, long pipe runs or trenching under established paving typically cost approximately $7,000–$15,000 or more, and are always quoted individually after a site visit.

Smart Irrigation Controllers

Smart irrigation controllers connect to Wi-Fi and adjust run times using local weather data, skipping cycles after rain and adding a little extra during heatwaves. You can pause or test zones from your phone, and many accept a rain or soil moisture sensor. Upgrading an existing system to a smart controller typically costs approximately $400–$800 supplied and installed, depending on the number of stations.

Running Costs and Water Savings

Running costs are low. The controller uses very little power, so you're mainly paying for the water and an annual check. Drip puts water where roots can use it, and early-morning watering in short cycles avoids the run-off and evaporation of a hose at midday.

The biggest waste we see is a system left on its summer program all year. Cutting run times back through autumn and winter, or letting a smart controller do it for you, makes a real difference to your water bill.

Sydney Water's Water Wise Guidelines

Greater Sydney has ongoing water-use rules, now called the Water Wise Guidelines (previously the Water Wise Rules). In general terms:

Sprinklers and standard watering systems should run before 10am or after 4pm, avoiding the heat of the day.
Drip irrigation and smart watering systems can generally be used at any time.
Hosing down hard surfaces such as paths and driveways isn't allowed, except for health, safety or emergency reasons.
New turf and new gardens get a short exemption after installation while they establish.

These rules can change, and tighter restrictions can return during drought, so check Sydney Water's website for the current wording. We program controllers to suit the rules.

Irrigation Maintenance and Repairs

Irrigation isn't set-and-forget. Common faults include:

Blocked drippers and spray nozzles
Sprinkler heads broken by mowers or foot traffic
Drip line cut by a spade during planting
Leaking or stuck valves
Controller programs lost after a power outage
Tree roots crushing or lifting pipes

An annual check, ideally in early spring, catches most of these. We run every zone, look for dry patches and puddles, clean filters, flush drip line and reset the program for the season. Checks can be built into a regular maintenance program, and we also handle irrigation repairs on systems installed by others. As a guide, gardener time is about $75 per gardener per hour, far cheaper than replacing plants lost to a failed zone.

Retrofit vs New Build

Installing irrigation during a landscape build is the cheapest and neatest approach, because pipe goes into open ground and conduit can be laid under paths before turf or paving goes down. Our Hopetoun Avenue project in Mosman, for example, included an automated irrigation system alongside premium bluestone paving and a geometric water feature.

Retrofitting an established garden is very achievable, but it usually costs more per zone, as pipe is threaded through beds by hand and paving has to be crossed. Drip line helps because it can sit under mulch rather than being buried. If landscaping works are on the horizon, plan irrigation in from the start.

Irrigation on the North Shore and Northern Beaches

On the Northern Beaches, sandy soils drain quickly and salty wind dries plants out, so drip under mulch outperforms sprays that blow off target. Our Northern Beaches landscaping page has more local advice. On the North Shore, sloping sandstone blocks and shallow soils suit short, repeated cycles that avoid run-off.

Get a Free Irrigation Quote

We have 10+ years' experience, and our teams are licensed and qualified in landscaping and horticulture. We use 100% in-house teams, never subcontractors, and carry $20M public liability insurance. A free on-site quote lets us check your water pressure, plan the zones and give you an itemised price. Call 0481 057 426 to book.

Frequently Asked Questions

How much does irrigation installation cost in Sydney?

Our irrigation installations start from $1,500 for a small drip system. Larger gardens cost more as zones and trenching increase, as shown in the price bands above. A free on-site quote gives you an exact figure.

Can irrigation be added to an established garden?

Yes. Drip line under mulch, careful hand trenching and boring under paths keep disruption to a minimum. Expect some short-term disturbance to mulch and soil, which is tidied up before we leave.

Do you repair irrigation systems you didn't install?

Yes. We fault-find and repair existing systems, replace broken heads and valves, upgrade controllers and reprogram schedules. If an older system has many problems, we'll tell you honestly whether repairing or replacing it makes more sense.

Is a smart irrigation controller worth it?

For most Sydney gardens, yes. It adjusts watering to the weather automatically, skips cycles after rain and lets you manage the system from your phone.

Irrigation Installation Cost Sydney: 2026 Price Guide