An irrigation system is one of the few home projects that pays you back twice: a healthier lawn you do not have to drag hoses around, and water applied precisely instead of by guesswork. It is also a project where design quality is invisible on day one and obvious by year three. Here is what to expect from a professional installation in New Jersey, and the questions worth asking before anyone trenches your lawn.
When to install: any time from March through December
Irrigation systems go in all season long, March through December. There is no wrong month for the pipe. What the calendar changes is the lawn on top of it. Fall is the ideal time to install if you are also seeding or laying sod: cool-season turf does its strongest root growth in fall, seed germinates through the winter, and you water far less to establish it than you would in spring or summer. Fall installs are also winterized at completion and ready to run their first full season the day spring arrives. Spring and summer installs are completely normal; the fall advantage is about the new grass and the water bill.
What a properly designed system includes
The difference between a system that just sprays and one that grows a great lawn on less water is design:
- Hydraulic design from your actual water supply. Measured flow and pressure, not assumptions, deciding how many heads each zone can support. Well-fed properties are designed around the pump and tank.
- Zoning by plant and exposure. Turf separate from beds, sun separate from shade, slopes handled with cycle-and-soak.
- Head-to-head coverage. Heads spaced so each one's throw reaches its neighbors. The single most common corner cut in cheap installs.
- Matched precipitation. Sprays with sprays, rotors with rotors, never mixed on a zone.
- A backflow preventer. Required protection between the system and your drinking water, installed cleanly, with the drop pipe made to look like it belongs on the house.
- A Hunter Hydrawise smart controller and rain sensor. Standard on our installs, because it is the cheapest water savings you will ever buy.

The installation process, start to finish
A typical residential install runs one to three days on site: design walk and quote, utility mark-out (New Jersey One Call, never optional), pipe pulled or trenched (a vibratory plow disturbs far less lawn than most homeowners expect), valves, wiring, and heads set, the backflow assembly plumbed at the connection, the controller and sensors mounted and programmed, then a pressure test and a zone-by-zone walkthrough with you. You should end the walkthrough knowing how to run a manual cycle, what the seasonal schedule does, and who to call in October for winterization.
What drives the quote
Every property is designed and quoted individually. What moves the number: lot size and zone count, the water supply (some homes need a dedicated tap or pressure handling; wells add pump considerations), soil and hardscape (cutting under walkways and driveways), the head types the landscape calls for, and the controller. Be cautious with quotes dramatically under everyone else's. The missing money is usually head spacing, pipe depth, or the backflow assembly.
Why we install Hunter
We install Hunter systems exclusively, from heads and valves to the Hydrawise controller, because we have serviced everything on the market for decades and it is what we trust to still be working in year fifteen. We service every other brand and will keep an existing system alive with the right parts, but when we build, we build Hunter.
The rule most homeowners do not know
New Jersey law requires landscape irrigation contractors to be state certified, and the state has issued consumer alerts about unlicensed irrigation work. Certification, insurance, and a real backflow plan are the first three things to verify about anyone touching your water supply. American Lawn & Sprinkler is certified, insured, and staffs certified backflow testers. The full vetting checklist is here.
New install versus renovating what you have
If your property already has a system with sound pipe, a renovation (new heads, valves, a smart controller, maybe a zone added for the new patio beds) often delivers most of what a new system would for a fraction of the cost. We will tell you plainly which side of that line your property is on; it is a five-minute answer once we have seen the system run. See the upgrades guide.
Frequently asked questions
Any time from March through December. Fall is ideal if you are also seeding or laying sod, because roots establish best and you water far less. The pipe does not care about the month.
Most residential systems: one to three days on site, after design and utility mark-out.
Modern pipe-pulling disturbs a narrow slit that typically disappears within weeks, faster in fall. Trenching is reserved for spots that need it.
It is designed and quoted per property: lot size, zone count, water supply, hardscape, and controller all move the number. We quote exactly after a design walk.
Requirements vary by town. The contractor handles utility mark-out and any local requirements, and New Jersey requires the contractor to hold state irrigation certification. We handle all of it.
Yes. Good hydraulic design leaves headroom. Tell us about the future patio now and the expansion later gets easier.