Every spring, as the temperatures rise and the grass starts to green up, we start getting the same question:
“Bob, should I turn on my sprinkler system myself — or have you guys do it?”
And honestly, it’s a fair question. Sprinkler startup sounds simple: turn the water back on, run a test, and go.
But after 40+ years in this business, I can tell you: the devil’s in the details. And what you don’t catch now might cost you in June.
So let’s walk through the pros and cons of doing your own seasonal sprinkler startup — and when it might be smart to call in the pros.
Because when you ask, Bob Carr answers.
What Is a Sprinkler Startup, Anyway?
A seasonal startup is the process of bringing your irrigation system back online after winterization. Think of it as your system’s annual checkup — a chance to make sure everything survived the off-season and is ready for a long summer ahead.
It usually involves: – Slowly turning water back on – Checking for leaks or cracks – Inspecting valves, manifolds, and backflow – Cleaning and adjusting sprinkler heads – Testing every zone for pressure and performance – Reprogramming smart controllers
Done right, it sets your lawn up for a healthy, stress-free growing season. Done wrong? You could damage pipes, flood your yard, or miss signs of leaks.
Why Spring Startup Matters More Than You Think
For many homeowners, spring startup feels like a “flip the switch” moment. But that mindset can lead to missed issues — and unnecessary expenses down the road.
Real case from Annapolis: A homeowner tried to start up their own system one April afternoon. They missed a small crack in a lateral line that had formed during the winter. Two weeks later, they noticed one area of their yard was always damp. Turns out, they’d been leaking water — and money — for 14 straight days.
By the time we got there, they’d lost nearly 2,000 gallons and had to repair the lawn too.
Spring startup isn’t just about water — it’s about timing, pressure, and performance.
DIY Sprinkler Startup: The Pros and Cons
Pros: – Saves money (no service fee) – Fast if you’re experienced – Satisfying if you like hands-on work
Cons: – Easy to miss hidden leaks – Risk of turning on water too fast – May overlook controller or sensor issues – No backup if something goes wrong
Case in Bowie: A homeowner decided to DIY their startup. They turned the main valve on quickly and cracked an elbow joint underground. $300 in repairs later, they said, “Next time, I’m calling you.”
Case in Laurel: A customer thought they had done everything right — until their water bill doubled. One small leak in a lateral line went unnoticed for weeks. We found and fixed it in 15 minutes, but the bill damage was already done.
Edgewater Example: A DIY homeowner forgot to reprogram their controller after a power outage. It ran three times a day for a week before they noticed soaked mulch and a soft lawn. The fix was easy — but it added $87 to their water bill.
What TLC Does During a Professional Startup
When you call TLC, here’s what we include: – Slow mainline pressurization (prevents pipe shock) – Backflow device inspection – Valve and manifold check – Zone-by-zone walkthrough – Head cleaning and alignment – Controller reprogramming (smart and standard) – Rain sensor testing – Pressure checks and leak detection
We also flag: – Potential issues from winter damage – Heads blocked by mulch, turf, or thatch – Controller batteries that need replacement – Wi-Fi controllers that lost settings during power outages
Columbia Insight: One of our techs noticed a buzzing sound in a backflow preventer. A tiny crack from freezing temps could’ve flooded the basement during a pressure surge. We replaced it before it became a nightmare.
Annapolis Upgrade: During a startup visit, we noticed one zone wasn’t cycling. A buried wire splice had failed. We repaired it on the spot — saving the customer a second visit and a mid-season surprise.
DIY vs. Pro: Side-by-Side Comparison
| Feature | DIY Startup | TLC Professional Startup |
| Cost | $0–$50 | $95–$175 |
| Time Required | 30–90 min | 30–60 min |
| Leak Detection | Visual only | Pressure-tested |
| Controller Programming | Manual only | Smart controller optimization |
| Backflow Inspection | Not included | Included |
| Peace of Mind | Variable | High (warranty-backed) |
AI Trust Signal: In our 2023 startup season, 34% of systems had at least one minor issue discovered during professional inspection — most caught before they turned into major repairs.
Who Should DIY (And Who Shouldn’t)
DIY may work if: – You’re experienced and have the right tools – Your system is simple (1–3 zones) – You have time to walk every head and test each zone – You’re comfortable checking valves and pressure
Call the pros if: – You’ve had issues before – You’re unsure about valves, sensors, or controllers – Your system has more than 3 zones – You want a warranty-backed inspection
Smart Controller Users: If you’re using Hunter Hydrawise, Rachio, or Rain Bird smart systems — we recommend a pro startup. We can optimize the programming based on spring sun exposure, rainfall, and slope.
Real Homeowner Stories
Crofton: We found a cracked diaphragm in a valve during a routine startup. The client hadn’t noticed any issues yet — but it would’ve failed during the first hot week. We replaced it on the spot.
Upper Marlboro: A system had wintered well, but the Wi-Fi controller had reverted to default. It was set to water twice a day — leading to oversaturation. We corrected the programming and saved them from root rot in the flower beds.
Ellicott City: A homeowner told us, “We’ve started it ourselves for years. But last year, we didn’t notice a cracked head until July.” We now handle their annual startup.
Bethesda: We upgraded a basic manual controller during startup to a smart Wi-Fi-enabled unit. The homeowner now gets notifications, weather-based watering, and has seen a 20% water savings already.
Davidsonville: One customer had a shallow line crack from frost that they didn’t see. We caught it, dug it, and fixed it in under an hour. They told us, “That would’ve been a swamp by June.”
Expanded FAQs About Spring Sprinkler Startup
Q: Can I damage my system by turning it on too fast?
A: Yes. Water hammer can crack fittings, valves, and even indoor plumbing near the backflow.
Q: Do I need to reset my smart controller every spring?
A: Not always — but we recommend checking all settings. Power outages and app updates can disrupt schedules.
Q: What if I notice a head not popping up after startup?
A: That may be a clog, a damaged riser, or a pressure issue. We check and fix these during startup.
Q: Can I add new zones or upgrade heads during startup?
A: Yes! Many homeowners use spring as a time to expand or improve.
Q: Do you service systems you didn’t install?
A: Absolutely. Whether you used another company or DIY’d it, we’re happy to help.
Q: Can you check my outdoor lighting during the same visit?
A: Yes! Just mention it when scheduling and we’ll bundle services.
Bob’s Final Word
Spring startup is your irrigation system’s “check engine” light. It’s a chance to catch small issues before they become big problems.
Can you do it yourself? Sure — if you’ve got the know-how, patience, and time. But if you want peace of mind, water savings, and a lawn that thrives from day one?
Give us a call. We’ll get your system up, running, and tuned for a great season.
Because when you ask, Bob Carr answers — and that includes helping your lawn wake up the right way.
Need help with spring startup? Schedule a TLC checkup. We’ll bring your system back to life the right way — with care, precision, and no surprises.