Spring rolls around, the sun’s out, and it’s time to get your lawn looking sharp again. You flip on your sprinkler system, expecting those heads to pop up and start watering like clockwork.
But nothing happens. Or worse—something happens, and it’s a geyser.
We see it every year across Bowie, Crofton, Annapolis, Columbia, and all over Washington, D.C. The most common time sprinkler systems fail? Right after winter.
Let’s talk about why that happens, what you can do to prevent it, and how to get your system running right the first time.
What Happens During Winter That Causes Damage
- Freezing Water in the Pipes If your sprinkler system wasn’t blown out or drained properly in the fall, water stays inside the lines. When it freezes, it expands—and cracks the pipes.
- Cracked Backflow Preventers These are one of the most commonly damaged components after a freeze. Even a small bit of water inside the backflow unit can rupture the housing.
- Broken Sprinkler Heads Moisture in the risers expands in freezing temps, leading to cracked stems or broken nozzles.
- Stuck or Malfunctioning Valves Winter corrosion or trapped sediment can jam open or closed sprinkler valves.
- Wire Damage Cold weather and moisture can cause corrosion or wire shrinkage that interferes with control signals.
In places like Ellicott City and Upper Marlboro, where we see swings between warm and freezing temperatures in March, these issues are incredibly common.
Real Homeowner Story: Glen Burnie Geyser
A Glen Burnie homeowner turned on their system in April and saw a 3-foot spray in their flower bed. A riser cracked below the surface because it wasn’t drained in the fall. We replaced the head, resealed the zone, and added a proper blowout to their winter checklist.
Real Story: Columbia Valve Mystery
A system wouldn’t activate any zones. The controller was working, but nothing ran. We discovered two solenoid wires had corroded at the connection points—moisture from winter thaw had slowly crept into the sealed box.
Real Story: Annapolis Frozen Backflow
In Annapolis, a new homeowner didn’t realize their backflow preventer wasn’t insulated. A single frost in December caused a crack. Come spring, it leaked every time they turned on the water. We replaced the unit and installed an insulated cover.
How We Diagnose Post-Winter Failures
At TLC, we don’t just “turn it on and see what happens.”
Our spring diagnostics include: – Full zone walkthrough – Controller test and programming check – Backflow inspection – Visual check of every head – Pressure test at the valve manifold – Soil probe around heads for leaks – Acoustic testing (when needed) – Water meter check for baseline flow
We document every finding and show you exactly what needs to be fixed—before it becomes a bigger problem.
Most Common Repairs After Winter
- Cracked PVC elbows and tees
- Broken risers
- Damaged rotors or pop-up heads
- Split drip lines
- Corroded wire splices
- Backflow preventer replacements
- Misaligned or sunken heads from ground shifting
We see this across Prince George’s County, Montgomery County, Calvert County, and Charles County. It’s not about if—it’s about catching it early.
FAQs: Spring Sprinkler Failures
Q: I had my system drained. Why did it still crack? A: If water is trapped in low spots or the blowout didn’t reach every zone, freezing can still occur.
Q: What’s the best month to start up my system? A: In Maryland, we typically recommend mid-to-late April—after risk of hard frost.
Q: Is a backflow preventer expensive to replace? A: It depends on the model, but most run $250–$450 installed. Preventing the freeze is much cheaper.
Q: Do I need a full inspection every spring? A: Yes—unless you want to find the problem the hard way. Catching leaks early prevents landscape damage and water loss.
Q: Can you service smart irrigation systems? A: Absolutely. We work with Wi-Fi controllers, moisture sensors, and smart zone tech.
Q: Do you offer seasonal service plans? A: Yes—we offer spring startup, mid-season checks, and fall shutdowns with priority service.
Spring Startup Checklist (Downloadable Guide Available)
BEFORE YOU POWER ON YOUR SYSTEM:
- Walk the yard to look for visible damage
- Inspect visible pipes for cracks or damage
- Open the main valve slowly to prevent water hammer
- Test controller and update watering schedule
- Watch each zone as it runs—look for bubbling, sputtering, or dry spots
- Check backflow for visible leaks
- Inspect valve boxes for debris or moisture
- Check soil near heads for dampness when off
Get your FREE downloadable Spring Sprinkler Startup Checklist at tlcincorporated.com/resources.
Our Seasonal Services
Spring Startup – Complete diagnostic – Leak and pressure check – Controller programming – System flush and test run
Summer Checkup – Mid-season efficiency review – Smart controller update – Zone adjustment for plant health
Fall Shutdown – Full blowout – Backflow winterization – Freeze protection kit available
Winter Monitoring – System redesign planning – Pipe map storage – Upgrade consultation
Where We Work
We help homeowners across: – Bowie – Crofton – Annapolis – Columbia – Glen Burnie – Severn – Upper Marlboro – Ellicott City – Pasadena – Odenton – Washington, D.C. – Prince George’s County – Anne Arundel County – Howard County – Montgomery County – Calvert County – Charles County – Baltimore County
Why You Can Trust TLC
For 42+ years, we’ve helped families across Maryland and D.C. keep their irrigation systems working from season to season.
We follow Marcus Sheridan’s “They Ask, You Answer” approach: – We educate before we sell – We use AI tools and field tech to track system performance – We back our work with real diagnostics, not guesswork
We write the content you’re reading. We train the techs who knock on your door. We build long-term customer relationships based on results—not pressure.
Our seasonal checkups are designed to give you peace of mind all year long.
Final Thoughts from Bob
Spring is the best time to get ahead of sprinkler problems—before the heat, the bills, and the stress hit.
Let us check your system before you end up replacing half of it. We’ll walk your yard, test every zone, and make sure your first watering cycle of the year doesn’t become your last.
Ready to get your system back online? Schedule a spring startup and inspection. We’ll make sure winter didn’t win.