Choosing among irrigation companies is easier when you compare what each one proposes for your specific yard, not just the total on the quote. A suitable system should account for the plants, lawn, soil, slopes, water supply and the time you want to spend maintaining it. Ask how the design will distribute water, what equipment and installation work are included, and what support is available after the system is running. Then compare those answers alongside price. A low quote can be poor value if it leaves dry patches, overwatered beds or unclear repair responsibilities; a more detailed proposal is useful only if its extra features solve a real need.
Before contacting irrigation companies, note which areas you want watered and how they are used. A lawn, a row of shrubs, vegetable beds and established trees do not necessarily need the same delivery method or schedule. Include areas that are difficult to reach with a hose, but be clear about whether the project covers the whole property or only selected beds and lawn.
Walk the site and record practical details: sunny and shaded spots, slopes, narrow planting strips, existing paths, and places where water tends to collect or run off. Soil affects how quickly water drains, while plant type and exposure affect how quickly an area dries. You do not need to diagnose every condition yourself; these notes help a contractor ask better questions and explain the design.
Also tell each company about your water source, any known pressure or flow concerns, and how you currently manage watering. If you have a rainwater tank, a well, or another non-standard source, mention it early. The contractor should establish whether the supply can serve the proposed system and explain any additional equipment or limitations that may apply.
Use a consistent set of questions for each contractor. A proposal is easier to assess when it explains the same areas of work and gives you enough detail to understand what is being installed.
| What to compare | What a useful proposal explains | What to ask |
|---|---|---|
| Site assessment and design | Which areas are included, how they will be divided, and what site conditions shaped the layout. | How did you account for the plants, soil, slopes and water supply? |
| Water delivery and controls | The proposed sprinklers, drip components, zones and controller, with a reason for each choice. | How will the system avoid watering areas with different needs on the same schedule? |
| Installation scope | Where pipes and components will go, what ground or planting work is included, and what is excluded. | Who restores disturbed lawn, beds or paving after installation? |
| Water management | How the system can be adjusted for rainfall, seasonal changes and local watering requirements. | What settings or optional controls are included, and what will I need to adjust? |
| Price and changes | A written breakdown of equipment, labour, commissioning and any stated exclusions. | How are extra work and changes to the design approved and charged? |
| Handover and support | What instruction, documentation, maintenance or repair support is available after installation. | Who should I contact if a zone leaks or stops working? |
Do not treat the table as a scoring system where every feature carries equal weight. For a small garden, clear zoning and accessible repairs may matter more than advanced automation. For a larger or more varied yard, the quality of the design and how easily separate areas can be controlled may be central. Prioritise what affects your property and daily use.
A good design begins with the areas to be watered, not a standard package of parts. Ask the contractor to show the proposed zones on a sketch or plan. Each zone should be understandable: you should be able to see which lawn, beds or planting areas it serves and why those areas are grouped together.
Different delivery methods suit different situations. Sprinklers can cover open lawn or broader planted areas, while drip lines or other targeted emitters may suit rows of plants and beds where water needs to reach the root area. Neither method is automatically right for every garden. The contractor should explain the expected coverage, potential limitations and how the layout avoids spraying walls, paths or areas that do not need watering.
Ask how the design handles obstacles, wind exposure, slopes and changes in planting. A layout that works for a level lawn may not work equally well on a bank or in a narrow bed. If you expect to add plants, alter beds or extend the lawn, ask whether the system can be adapted and what that would involve.
Request clarification if a quote lists equipment without showing where it goes or what each component does. Brand names alone do not tell you whether the layout suits the site. The useful detail is how the parts work together and how you will access key valves, filters or other serviceable components.
Water efficiency depends on design, adjustment and use. A controller can make watering more convenient, but it cannot compensate for poor coverage or a schedule that does not suit the plants and conditions. Ask how the system will be set up initially and how you can change it when rainfall, temperatures or planting needs shift.
Some systems can use rain or soil-moisture information to adjust watering, while others rely on a programmed schedule. Ask which controls are included, whether additional sensors are optional, and what ongoing adjustments they require. Consider the value of a feature in your own routine: automation is most useful when it helps you avoid unnecessary watering or makes regular control easier, not simply because it adds technology.
Ask the company to demonstrate how to pause the system and change a schedule. If separate zones can be controlled independently, find out how to do so. That matters when a vegetable bed, newly planted area or established lawn needs a different approach from the rest of the yard.
Local watering restrictions and supply conditions can vary. Ask the contractor how the proposed setup can operate within the requirements that apply to your property, and verify any current restrictions with the relevant council or water supplier. Do not assume that an automated system is exempt from limits on watering.
Even a well-planned design can disappoint if installation is rushed or the finished system is not tested. Ask who will carry out the work, how the installer protects existing plants and surfaces, and what happens if the crew finds an unexpected obstruction or site condition. If the company uses subcontractors, clarify who manages the job and remains responsible for resolving problems.
Confirm what the quote includes. It should be clear whether it covers the controller, valves, pipes, emitters or sprinkler heads, connection to the water supply, testing and initial setup. It should also state what is excluded, such as electrical work, repairs to existing damage, landscaping or reinstatement of paving. If excavation or trenching is involved, ask how the affected area will be left when work is complete.
Before accepting the work, ask for a demonstration of each zone and check that the water reaches the intended areas. Have the installer show you the main shut-off, controller and any components that need periodic attention. Request a simple layout or record of where pipes and valves are located; this can help if you later plant, dig or arrange a repair.
Ask what documentation, workmanship cover or equipment warranties apply, and who handles a service call. Terms differ between providers, so get the relevant conditions in writing rather than relying on a general promise of aftercare. Also ask whether routine servicing is available and what it involves; do not assume it is included in the installation price.
Quotes can differ because they cover different areas, use different equipment, include different amounts of preparation or offer different levels of support. Before comparing totals, check that each contractor is pricing the same scope. One proposal may include a controller and commissioning while another lists them as optional or excludes them.
Ask for a written explanation of any allowance, provisional item or possible extra charge. If the design changes during installation, agree on how the company will explain the change and get your approval before carrying out additional work. This is particularly useful when the final layout depends on what is found below the surface.
Compare the practical value of the proposed system over time. An inexpensive setup may be a sensible choice for a straightforward area if it is designed and installed well. For a complex yard, paying more may be justified if the proposal clearly improves coverage, separates areas with different needs or makes maintenance easier. Avoid paying for upgrades whose purpose the contractor cannot explain in relation to your property.
One concern does not automatically mean a company is unsuitable; it may simply need clarification. What matters is whether the contractor answers specific questions plainly and updates the written scope when needed. If important design or cost details remain unresolved, compare another proposal before committing.
There is no fixed number that suits every project. Comparing more than one proposal can reveal differences in design and scope, but the quotes are useful only if each contractor is responding to the same job description. Prioritise clear, site-specific proposals over collecting a large number of vague estimates.
It depends on the area, planting and layout. Sprinklers may suit open spaces, while targeted emitters can be appropriate for beds or rows of plants. Ask the contractor to explain coverage and limitations for each proposed method rather than choosing by type alone.
Often, a system can be planned around existing plants and paths, but the route for pipes and the locations of components need careful consideration. Tell the company which plants and surfaces must be protected, and ask how installation may disturb them. A site visit helps establish what is practical.
Ask for a demonstration of the controller and zones, instructions for pausing or changing the schedule, and a record of key component locations. You should also receive the applicable warranty or workmanship terms and details of who to contact for service. Confirm these deliverables before the work begins.
It may suit a homeowner who wants easier control or has areas that need different schedules, but it is not essential for every yard. Ask what the controller can adjust, whether it requires a reliable connection or additional sensors, and what happens if you prefer manual settings. Compare its actual functions with the simpler option in the quote.
Tell the irrigation company before it prepares the design, and ask how it will assess whether the supply can support the proposed zones. The answer may affect the layout or equipment. Do not approve a plan that assumes the water source is adequate without an explanation of how it was considered.
When comparing irrigation companies, give most weight to a clear site-specific design, a defined installation scope and useful aftercare. Ask each contractor to explain how the system will water your actual lawn and planting areas, then compare the written proposals on equal terms. Before hiring, make sure you understand what is included, how changes are handled and how to operate and maintain the finished system.
