If you haven’t already scheduled your sprinkler winterization, now is the time to do it. Every year we get dozens of calls after the first freeze—when damage has already been done. But with one quick visit from our TLC team, you can avoid costly repairs and protect your system through the winter months.
Why Winterizing Your Sprinkler System Is So Important
When temperatures drop below freezing, any water left inside your irrigation pipes or backflow preventer can expand and crack components. That means:
- Broken valves
- Cracked pipes
- Leaky sprinkler heads
- Damaged backflow devices
These repairs can easily run into the hundreds or thousands of dollars. But winterization? It typically costs $175.
Water damage also tends to go unnoticed until spring. That means many homeowners won’t even realize they have a problem until the system is turned back on—and by then, the damage is done, and your lawn may flood.
What We Do During Winterization
At TLC, we use a commercial-grade air compressor to perform a “blowout” of your entire sprinkler system. This process ensures that no water remains in the lines, heads, or backflow unit.
Here’s what our winterization visit includes:
- Shut off the water supply to your irrigation system
- Connect an air compressor to the main line
- Sequentially blow out each sprinkler zone
- Inspect sprinkler heads and backflow preventer
- Set controller to “off” or “winter mode”
- Provide you with a quick service summary and tips for spring startup
The whole process typically takes about 20–30 minutes, and we can usually perform it even if you’re not home, as long as we have exterior access.
Common Myths About Sprinkler Winterization
Myth #1: I can just drain the system myself.
Unless you have a professional air compressor and know how to manage the zones safely, a DIY drain often leaves water behind. That trapped water is what causes damage.
Myth #2: It hasn’t frozen yet, so I have plenty of time.
Maryland weather can turn fast. We’ve had surprise freezes as early as late October and certainly by mid-November. Don’t gamble with your system.
Myth #3: My system’s underground, so it’s protected.
While underground pipes are insulated by soil, the sprinkler heads, valves, and backflow preventers are still vulnerable to cold temperatures.
Weather Trends: When Does It Freeze in Our Area?
In Maryland and surrounding Mid-Atlantic regions, our first hard freeze usually happens between mid-November and early December. Some years it’s earlier, and frost conditions can occur at night well before that.
The takeaway? You want your system winterized before Thanksgiving.
By scheduling now, you avoid the last-minute rush and protect your investment before cold weather becomes a real threat.
Cost Comparison: Winterization vs. Repairs
| Item | Estimated Cost |
| TLC Winterization | $172–$385 |
| Replace backflow preventer | $850–$1250 |
| Replace cracked underground line | $400–$1,000+ |
| Repair multiple broken sprinkler heads | $250–$500 |
| Peace of mind | Priceless |
As you can see, a small preventative service saves you from big springtime headaches.
Schedule Before the Freeze
TLC Incorporated has been serving Maryland, Delaware, and surrounding areas for decades. We know how to protect your landscape investment, and we take pride in being prompt, professional, and friendly.
Sprinkler winterization is one of the simplest and smartest things you can do to avoid damage, extend the life of your system, and reduce repair costs.
Book your winterization appointment now and beat the freeze. Your future self—and your lawn—will thank you.
Frequently Asked Questions
Q: Do I need to be home for winterization?
A: Not necessarily. As long as we have access to the backflow preventer and controller, we can complete the service and leave a report.
Q: How long does it take?
A: Most homes take 30–40 minutes. Larger systems with many zones might take a bit longer.
Q: Can I bundle this with other services?
A: Absolutely. Many of our customers schedule sprinkler winterization alongside fall cleanup, lighting checks, or drainage evaluations.
Q: Is there a deadline to get it done?
A: Ideally, before the first hard freeze. We suggest calling us no later than early November to secure a spot.
