Choosing sprinkler system companies is less about finding the lowest quote than finding a contractor who can explain how the system will work in your yard. Ask each company to assess water supply, soil, slope, planting and sun exposure before recommending equipment. Then compare the proposed coverage, zone layout, installation scope and maintenance support—not just the total price. A clear plan should show what will be watered, how different areas will be controlled and what you’ll need to do after installation. These details help you spot a system that may leave dry patches, waste water or require avoidable changes later.
Start by defining the job. A new installation across a large lawn and garden may call for a different level of design work than replacing a faulty valve or adding drip irrigation to a planting bed. Some businesses focus on full system design and installation; others mainly service or repair existing equipment. A landscaping company may offer irrigation as part of a broader project, while a dedicated irrigation contractor may concentrate on system layout and upkeep.
None of these business types is automatically the right choice. Look for relevant experience with a project similar to yours, and ask who will assess the site, prepare the design and complete the work. If the company uses subcontractors, find out which tasks they will perform and who is responsible for coordinating the job.
Before hiring, ask for examples of comparable work and permission to contact a recent customer if references are available. Check that the business has appropriate insurance and that the people doing the work have relevant experience. If the project involves electrical connections or changes to a water supply, ask who is responsible for that work and what qualifications or approvals may apply locally.
A useful assessment looks at the conditions that affect both water delivery and plant health. The contractor should take account of lawn and garden boundaries, paved areas, trees, established roots, slopes, sun and shade. Soil that drains quickly may need a different watering approach from soil that holds moisture, while a steep or uneven section can need careful planning to limit runoff.
The water supply also matters. Ask whether the company will check available flow and operating pressure before selecting equipment. These are related but different considerations: a system needs enough water to operate its planned zones, and pressure affects how its sprinklers perform. If the design assumes more water is available than the supply can provide, coverage may suffer when the system runs.
For a tank, bore or other non-mains source, ask whether the proposal accounts for any pumping, filtration or other equipment the setup may need. If the system connects to a drinking-water supply, ask how the contractor will address backflow risk and whether any protections are required for your installation. Local requirements can vary, so confirm what applies to your property rather than relying on a general promise.
Pay attention to whether the assessor asks how you use the yard. A dog run, vegetable bed, newly planted area or section that is difficult to reach with a hose may change the design priorities. Ask the company to explain what it observed and how those conditions affected the recommendation. If a quote arrives without a site visit, ask what assumptions it relies on and whether the price or design could change after inspection.
A plan should make it possible to see which areas will be watered and how the system is divided into zones. Lawns, garden beds and plants with different watering needs may not belong on the same schedule. Grouping areas thoughtfully gives you more control than running every part of the yard in the same way.
Ask how the proposed sprinkler types suit each area. Fixed spray heads, rotating heads and drip lines deliver water differently and are intended for different layouts. The contractor should explain why the chosen option fits the space, rather than simply listing equipment. For lawn areas, ask how the layout is intended to reduce dry gaps and avoid watering paths, walls or neighbouring areas.
Request a drawing or clear written layout showing zones, control points and the main equipment. It need not be difficult to read. You should be able to identify the areas covered and understand how the system will be controlled. If a company cannot show how its design responds to a narrow side yard, a sloping lawn or separate planting beds, ask for clarification before accepting the proposal.
Controllers and sensors can add control, but they should not distract from basic design. Ask what the controller will operate, whether you can adjust it yourself and whether any proposed sensor is compatible with the system. A sophisticated controller cannot correct poorly positioned sprinklers or an unsuitable water supply.
Quotes are easiest to compare when each company has priced the same work. Ask for an itemised proposal that describes the equipment, installation, testing and handover. The table below highlights the details to line up and the questions that can reveal gaps.
| What to compare | What a useful proposal explains | Question to ask |
|---|---|---|
| Site assessment | How yard conditions and water supply influenced the design | What did you measure or inspect before recommending this system? |
| Coverage and zones | Areas included, zone boundaries and sprinkler or drip-line types | Can I see a layout showing what each zone waters? |
| Equipment | Types and quantities of heads, valves, controller and related parts | Which components are included, and what alternatives were considered? |
| Installation scope | Trenching, connections, reinstatement and any excluded work | Who restores disturbed lawn, soil or paving? |
| Testing and handover | How the system will be checked and what instructions you will receive | Will you demonstrate the controller and show me the shut-off point? |
| Warranty and service | Coverage, exclusions and how to arrange repairs or adjustments | What is covered, for how long, and who handles a problem? |
A lower quote may reflect a simpler design, fewer included tasks or equipment that is not specified. Ask the company to identify any provisional costs and explain what could change the final amount. A higher price is not proof of better work either; compare the actual scope and the reasoning behind it. Where proposals differ, ask each contractor to price the same additions or exclusions so the comparison is fair.
Installation can affect the appearance and function of a yard as well as the irrigation equipment. Confirm where trenches will be dug, how the contractor will work around established plants and what will happen to disturbed turf, soil or paving. If another landscaping job is planned, agree on the sequence so irrigation lines are not placed where later work could damage them.
Before work begins, get the schedule, payment terms and change process in writing. The proposal should state what is included, what is excluded and how additional work will be approved. Ask who to contact if the system does not operate as expected after the crew leaves.
At completion, have the contractor run the system and explain the controls. Ask them to point out the valves, controller and any shut-off that you may need to locate. Request a zone map or another record of the layout, plus instructions for adjusting schedules. A clear handover makes future troubleshooting and repairs easier, especially if another company later services the system.
Discuss maintenance before choosing a contractor. Ask what routine checks the system needs, whether the company offers servicing and which tasks you can handle yourself. Depending on the system and local climate, seasonal needs may include changing schedules, checking for leaks or protecting components from cold weather. Ask for advice that fits your property rather than accepting a generic maintenance package.
Be cautious if a contractor recommends equipment before asking about the yard or water supply, or if the proposal gives only a total price with no meaningful scope. A company should be able to explain what each major component does and why it is suited to the site. If it promises that every area will receive ideal watering without explaining how coverage will be checked, ask for a more specific description of the testing process.
One unclear detail does not necessarily mean a company is unsuitable. Give the contractor a chance to answer questions and update the written proposal. If the explanation remains vague, another quote may give you a more reliable basis for deciding.
If you are in New Zealand, check whether any local water-use restrictions or council requirements affect the proposed work. Ask the contractor what they have allowed for, then confirm any property-specific requirements with the relevant local authority or water provider.
Gather proposals from more than one suitable company so you can compare design choices and scope. The value is in comparing contractors who have assessed the same areas, not collecting quotes with different assumptions. Ask for clarifications in writing before deciding.
Companies may propose different zone layouts, equipment, installation methods or levels of aftercare. One price may include testing and restoration while another leaves those tasks to you. Ask each contractor to explain the main cost differences and state any exclusions.
It may be possible, but those areas can have different watering needs and may benefit from separate zones or equipment. Ask the designer how the proposed schedule will suit each planting area and whether you can adjust them independently.
That can be convenient if the original installer is available and can explain the equipment. If not, ask a new service company whether it works with your system and can diagnose the fault before recommending replacements. Providing a layout or equipment records can help.
Ask for operating instructions, a record of the zones and equipment, warranty information and a demonstration of the controller and shut-off point. The contractor should also explain what was tested and how to request service if a problem appears.
The right sprinkler system company is one that can connect its recommendations to the conditions in your yard and explain the full job in writing. Compare site assessment, coverage, installation scope and ongoing support alongside price. Before you hire, make sure you understand what the system will water, what the contractor will deliver and what you will need to maintain.
