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Smart Controller Installation in Cary, Raleigh & the Triangle

WiFi and weather-based controllers that water smarter, cut your bill, and keep you on your town’s schedule — installed and programmed right.

10+ yrs serving the Triangle
Local insured & accountable
100% satisfaction guarantee
12-mo workmanship warranty

Water on the weather, not a guess

An old dial timer waters the same amount whether it’s a heat wave or the day after a storm. A smart controller pulls local weather and soil data and adjusts automatically — skipping cycles when it rains, easing off in cool weather, and running full in the heat. That’s where a big chunk of the ~$500/yr in water savings comes from.

We install and program Rachio, Hunter Hydrawise, and Rain Bird controllers, wire in rain and freeze sensors, and set the schedule to your town’s watering rules — odd/even, alternate-day, or reclaimed exemptions. You control it from your phone; it does the thinking for you.

Cary Sprinklers technician wiring a smart irrigation controller on a garage bench in Cary, NC

Why upgrade the controller

01

Lower bills

Weather-based watering is one of the biggest, easiest water-savings wins.

02

Set-and-forget

Programmed to your town’s rules and your yard — it manages itself.

03

Phone control

Check, tweak, or pause your system from anywhere.

What the controller is actually calculating

Underneath the app, a weather-based controller keeps a simple ledger for every zone. On one side it credits rainfall. On the other it debits evapotranspiration — ET — the water lost to evaporation from the soil plus what the grass or shrubs actually drink, derived from temperature, humidity, solar radiation, and wind. When the running deficit reaches the threshold set for that zone, the zone runs long enough to replace what left, then stops. That’s why a zone runs a fraction as long in May as it does in August, and why it sits idle for several days after a storm.

Where those numbers come from is worth asking about. Some pull the nearest airport station, some read a neighbor’s personal weather station, some use a gridded forecast tied to your address, and some rely on an on-site rain or soil sensor. It matters, because summer storms here are narrow. A station six miles up the road can log nothing while your yard takes an inch, and the controller will cheerfully skip a cycle you needed. Part of our setup is confirming which source it’s reading and whether it’s close enough to trust.

Reviews

What our Triangle neighbors say

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Shahar Moscovits profile picture
Shahar Moscovits
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I’m so glad I found Cary Sprinklers! Adam, the owner, is incredibly friendly, honest, and straightforward. He found several problems with our sprinkler system and was able to fix them for a very reasonable price. We had other companies come out who tried to upsell us on repairs costing thousands of dollars, so the difference was unbelievable. I have some experience in this field myself, so I know how to evaluate vendors and recognize when someone is being honest and when they’re simply trying to sell you more work. Adam was clearly focused on actually solving the problems rather than taking advantage of us. He saved us a tremendous amount of money, and we really appreciate it. Thank you so much, Adam, for your honesty, professionalism, and excellent work. Highly recommended!
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cyndy White profile picture
cyndy White
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This is the second time we have used Cary Sprinklers, and both times involved dirty digging and repairing complex leaks. The first was an underground valve leak and they put the dirt and our sod back as if it was their own home. The site around our second job by our backflow was also filled in nicely. Adam the owner, Matt the estimator, and Colby the irrigation magician were all great to work with. We think our irrigation in our box came apart when TOC main busted and the extreme pressure of 200+ psi was too much. Matt did a thorough job looking at our issue, answering all my questions about the possible TOC main break playing a part, and giving quote for the time he felt it would take. Keep in mind, this is the type of small business where you need to be flexible on the time of arrival since prior jobs may put them behind. With this said, the crew will spend all the time needed to repair the issue you have at your home and not rush to make things just good enough. They want to make sure the repair is done to your satisfaction. I texted Adam several times and he had a prompt response time. He was also prompt via email with a post work invoice question. We recommend supporting Cary Sprinklers for the reasons above and because this is a small business growing roots in our community.
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Matt Pickens profile picture
Matt Pickens
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Very fast service and Colby was very professional. Highly recommend using Cary Sprinklers.
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Lynne profile picture
Lynne
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Fantastic company! I highly recommend Cary Sprinklers. They did a great job!
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James Cleary profile picture
James Cleary
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Cary Sprinkler was easy to get an appointment online, they kept me informed every step of the way. The technician was on time, knowledgeable and personable. Would use again and recommend.
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Beth K Mandell/Lerner profile picture
Beth K Mandell/Lerner
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Adam and Gerald showed up right on time and kept me updated with texts the night before and the day of with their ETA. I needed a new zone added for part of the yard that wasn’t getting enough water anymore, and they did a great job. Fair pricing, excellent communication, and very professional — I’m really happy with the result.
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Kate Wotton profile picture
Kate Wotton
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5 stars — Highly recommend Cary Sprinklers! We hired Cary Sprinklers to expand our existing irrigation system by extending one zone and adding a completely new zone. From the beginning, they were professional, knowledgeable, and very easy to work with. What really impressed us was the equipment and efficiency. They used a Toro Dingo to trench the new lines, which allowed them to get the work done quickly and professionally while keeping the disruption to our yard to a minimum. The crew clearly knew what they were doing, and the installation was done right. Adam took the time to explain what we needed and why, and the communication throughout the project was excellent. The new zones give us much better coverage of the property, and everything is working exactly as it should. We couldn’t be happier with the finished system. The whole process was smooth, and the work exceeded our expectations. We would definitely use Cary Sprinklers again.
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Beth Turkish profile picture
Beth Turkish
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Cary Sprinklers is amazing. Adam is professional, capable, and wonderful to do business with. We called him because we had trouble with our timer app and controller. It wasn’t a brand that he usually works with, but he figured it out and fixed it anyway. Additionally, his team did an amazing job removing this massive root to get a broken sprinkler out of the ground and replace it and even under budget! I’ve done business with a few sprinkler companies in my lifetime, and these guys are the best!! They are honest, reliable, and very detail oriented. You will not be sorry if you call Cary Sprinklers.
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John Donellan profile picture
John Donellan
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Adam came out and made adjustments to several unfamiliar sprinkler heads that had been causing some lawn coverage issues. He worked quickly & efficiently to correct the issues to my satisfaction. A very good experience!
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The setup screen that decides whether any of it works

Every zone has a configuration page, and the entries on it are what the whole schedule gets built from. Soil type sets how fast water can enter the ground before it starts moving sideways. Slope tells the controller how much less than that it can get away with. Nozzle type — rotor, fixed spray, rotating nozzle, or drip — sets the precipitation rate, since a spray head lays water down two to three times faster than a rotor covering the same ground. Plant type and root depth set how much reserve the soil holds before the zone needs to run again: turf-type tall fescue draws from deeper than a bed of annuals and can wait longer between cycles. Sun and shade shift the picture again.

Out of the box those fields carry defaults — usually loam, flat, spray head, full sun — and around here at least two of the four are wrong on most zones. A controller left sitting on defaults isn’t doing much a dial timer wasn’t already doing. Walking the property, identifying what’s in each zone, and entering it correctly is most of the value in the install.

Cycle-and-soak isn’t the same as watering less

Red Wake County clay accepts water slowly — far slower than a spray zone delivers it. Within eight or ten minutes the surface is saturated, and every minute after that heads downhill toward the curb. The instinctive fix is to cut the run time, but that leaves you watering only the top inch and growing a shallow root system that wilts in the first hot week of July.

Cycle-and-soak solves it differently. The zone’s total run gets divided into two or three short cycles with a soak interval between them, long enough for what’s sitting on the surface to move down. The same total volume goes into the ground and almost none of it leaves the property. Every smart controller can do this, and on plenty of systems we service it was never switched on.

Restricted watering days make the sequencing tighter. Under Cary’s year-round alternate-day rule on potable water, the permitted nights are fixed, and three cycles plus two soaks across eight zones is a long window. We set the start early enough that the final soak finishes before the window closes, and stagger zones so none overlap and drop pressure.

What a controller can’t fix, and the sensor that helps

A controller opens valves for a set number of minutes. That is the extent of its authority. It can’t straighten a head knocked off its arc, clear a plugged nozzle, or fix a zone where three nozzle sizes have been mixed and half the lawn gets double the water. Layer good weather logic over uneven coverage and all you’ve done is deliver the wrong amount more precisely. We check coverage first and handle whatever sprinkler repair the zones need before tuning schedules.

One add-on extends what the controller can perceive. A flow sensor on the mainline reads gallons per minute, learns what each zone normally draws, and flags anything outside that range — a spike when a head snaps off, a trickle when a valve refuses to open. Paired with a master valve it can shut the water down by itself instead of running until the bill shows up.

As for the app, the genuinely useful parts are unglamorous: killing a cycle from your phone when the mowing crew pulls in, running one zone while you stand at the head watching it, and a log that answers why a zone didn’t water Tuesday.

Smart controller FAQ

Which smart controller is best?

We install Rachio, Hunter Hydrawise, and Rain Bird — all excellent. The right one depends on your zones and WiFi; we’ll recommend and set it up.

Will a smart controller really lower my bill?

Weather-based watering skips unnecessary cycles and right-sizes run times, which is where a lot of the ~$500/yr savings comes from.

Can you just swap my old timer?

Yes — a retrofit swaps your dial timer for a smart controller without redoing the system.

Does it handle Cary’s reclaimed water or odd/even rules?

Yes. We program it to your town’s schedule, including reclaimed exemptions and odd/even or alternate-day rules.

Water smarter, spend less

Have a smart controller installed and dialed in by a local team. Upfront pricing.

Request service

Get your free smart controller installation quote

Tell us what’s going on and we’ll get right back to you — usually the same day. Prefer to talk? Call or text 919-341-9644.

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