This article is brought to you by the team at TLC — Maryland’s trusted experts in erosion control, foundation drainage, and long-term yard protection.
If you’re still setting your sprinkler timer with a dial and a prayer, it might be time for an upgrade.
Smart irrigation controllers have come a long way — and the cost to convert your system is probably less than you think.
Here’s what Maryland homeowners pay in 2026 to switch from old-school boxes to smart, weather-based sprinkler control.
Photo Credit: HydroPoint
Typical Smart Controller Conversion Costs (2026)
| System Size | Controller Type | Installed Cost Range |
| 4–6 zones | Wi-Fi ready (indoor) | $350 – $550 |
| 6–12 zones | Wi-Fi + outdoor enclosure | $550 – $750 |
| Add flow sensor | Optional (for leak alerts) | +$150 – $300 |
This includes removing the old box, setting up the new controller, and programming your existing zones. If you need new wiring or valve repairs, that may increase the cost slightly.
If your existing controller is more than 10 years old, there’s a good chance it’s costing you more than it should — in wasted water, overwatering, or failing components.
What You Get with a Smart Controller
- Remote control via phone app (iOS + Android)
- Weather-based scheduling (skips when it rains)
- Cycle-and-soak programming to reduce runoff
- Seasonal adjustment
- Notifications and usage tracking
- Historical reporting to track water usage
- Alerts when zones fail, valves stick, or water usage spikes
Smart controllers do more than run on a timer. They actually learn your landscape. Some adjust for sun/shade, slope, soil type, and even your zip code’s forecast.
TLC Installs the Best Brands
We install and support: – Hunter Hydrawise (Pro-HC & HPC series) – Rain Bird ESP-Me3 with LNK2 WiFi – Rachio 3
All systems we install include: – App setup on your device – Walk-through and custom schedule – Full pressure and zone test – One-year installation warranty – Advice on optimizing watering times for Maryland’s climate
We also provide seasonal tune-ups to ensure your system keeps working like new.
When a Smart Upgrade Makes Sense
You might want to consider a controller conversion if: – You’ve got an old dial-based box that resets every time the power goes out – You’ve noticed your lawn stays wet even when it rains – Your system waters the same way every day no matter the weather – You travel often and want remote access – You want to reduce your water bill (and your HOA complaints!)
Many customers tell us the controller paid for itself in one season through reduced water usage and better lawn health.
Real Example: Upgrade in Crofton
A homeowner had a 10-zone system with a 15-year-old controller that was failing randomly. He was manually running each zone using the old dial box after a storm fried the timer. His lawn was half-browned from overwatering, and his HOA sent him a notice about excess runoff.
We installed: – Hunter Pro-HC 12-zone Wi-Fi controller – Outdoor enclosure + surge protector
Total cost: $690
Result: Zones now skip automatically on rainy days and the homeowner controls everything from their phone.
He said, “I travel a lot for work. I used to call my neighbor to check the lawn. Now I do it from the airport.”
Real Example: Rachio Install in Annapolis
An older home had a solid system with good coverage but an outdated control box that was difficult to program.
We installed: – Rachio 3 8-zone controller – Connected to their smartphone and set up zones by area (sun, shade, beds)
Cost: $520
Result: No more overwatering in shady areas and full control from the kitchen.
Case Study: HOA Irrigation in Bowie
We upgraded a shared controller on a cul-de-sac where three neighbors shared water.
We installed: – Rain Bird ESP-Me3 with Wi-Fi module – Labeled all zones and set timers for fair use
Total cost: $860
Bonus: Residents now get alerts when one yard overuses water.
What Homeowners Ask Us About Smart Controllers
Q: Will this work with my old valves and wires?
A: In most cases, yes. As long as your valves are functional and the wiring is intact, we can connect to it.
Q: Do I need to upgrade all my sprinkler heads too?
A: Not unless there’s a performance issue. The controller controls the brains, not the heads.
Q: What happens if my Wi-Fi goes out?
A: All smart controllers have onboard memory. They continue running their last set schedule.
Q: Can I use Alexa or Google to control it?
A: Yes. All three systems we install are voice-assistant compatible.
Q: What if I sell my house?
A: We can help transfer the system to the new homeowner and reset the app.
Q: I have a large yard and two controllers—can they both be upgraded?
A: Absolutely. We can upgrade both and even combine them into one app. Rachio and Hydrawise both support multi-zone systems across multiple controllers.
Q: What if I have multiple soil types or plant zones?
A: Smart controllers let you program each zone individually. Shade, sun, flower beds, lawn—each can be customized.
Q: Do smart controllers adjust for evaporation or humidity?
A: Some models do! Hydrawise, in particular, adjusts watering time based on temperature, humidity, wind, and rainfall.
How Smart Controllers Save Water (and Money)
Let’s say your traditional system waters 4 times per week, even when it rains. With a smart controller, it might only water twice — based on real soil moisture and upcoming forecasts.
In Maryland, that can save: – 10,000 – 25,000 gallons of water per year – $50 – $300 on your utility bill – Countless plants from drowning
It also prevents water waste violations in some counties that monitor overwatering.
We had one client in Severn who cut her water bill in half after her system stopped watering during overnight storms.
TLC’s Upgrade Process
- Evaluate your current controller, valves, and wiring
- Choose the right model based on zones and features
- Install and wire the new controller
- Connect to Wi-Fi and sync the app
- Name and test all zones
- Program seasonal schedules and skip logic
- Teach you how to use the app (with a printed guide)
We leave you with a system that works today and saves money tomorrow.
Why Maryland Lawns Love Smart Irrigation
In spring, rain is everywhere. In summer, droughts hit hard. A fixed schedule doesn’t work anymore.
Smart controllers adjust daily. That means: – No dry patches during heat waves – No fungal issues from overwatering – Healthier roots from deeper, less frequent watering – Automatic weather skips during storms
It’s the best way to keep your grass green and guilt-free.
Bob Carr’s Final Thoughts
You can keep guessing, or you can let your sprinkler system think for you.
Smart controllers are one of the best upgrades you can make to an irrigation system. They save water, protect your lawn, and put control in your hands.
If you’re asking, “Is this worth it for my yard?” here’s my checklist:
✅ Your controller is 10+ years old
✅ You water even when it’s raining
✅ You can’t remember your last schedule update
✅ Your lawn looks good some weeks, bad others
✅ You want to control things from your phone
Let us take a look at your system. We’ll tell you what works, what doesn’t, and what a smart upgrade could save.
📞 Call (410) 721-2342 or request your irrigation upgrade at AskBobCarr.com
Because your lawn deserves better than guesswork—and so does your water bill.