When should you winterize your sprinklers in Atlanta? The freeze dates, and what it costs
Shut down and drain your sprinkler system before early November. Winterization is $95 to $120 on our price list.
Short answer: shut down and drain your system before early November. The National Weather Service puts Atlanta's average first freeze at November 13, and Athens' (a fair stand-in for the northeast side of the metro) at November 7. But Atlanta has frozen as early as October 11. Winterization is $95 to $120 on our price list. A cracked backflow preventer or mainline costs several times that to put right.
The dates that matter
| Station | Average first freeze (32°F) | Earliest on record | Latest on record |
|---|---|---|---|
| Atlanta | November 13 | October 11, 1906 | December 18, 1998 |
| Athens | November 7 | September 24, 1928 | not listed here |
Source: National Weather Service, Peachtree City office.
An average date is the middle of the pack. In roughly half of all years the first freeze arrives before it. That is why we start booking shut-downs in mid-October instead of waiting for the forecast to turn. Homes in Sandy Springs, Dunwoody and Brookhaven sit on the same side of the metro as the cooler stations, and a low-lying yard can frost earlier than the airport reading suggests.
Why Georgia systems crack even in a mild winter
Atlanta winters are mostly mild, and that is exactly why people skip this job. It takes only one hard night with water sitting in an above-ground backflow preventer or a shallow line. Water expands when it freezes and splits brass and PVC. The damage stays hidden until you turn the system on in spring and part of the yard floods.
We have walked yards in March where the owner swore the system "worked fine last year." It did. The crack happened in January and nobody saw it until the first zone ran. That is the part that stings, because the fall visit costs far less than the spring repair.
What winterizing involves
- Shut off the water to the irrigation system at the isolation valve.
- Drain or blow out the lines so no zone holds standing water.
- Protect the backflow preventer. It is the most exposed part of the system and the most expensive to replace.
- Set the controller to off or rain mode so it does not try to run dry lines.
- Look the system over while it is open. A shut-down is the cheapest time to spot a leaking valve or a broken head, because nothing is covered in water.
What it costs: our numbers
| Job | Price | Based on |
|---|---|---|
| Winterization (fall shut-down) | $95 – $120 | price list |
| Spring start-up | $175 – $225 | price list |
| Sprinkler repair found during the visit | from $95 | price list |
| Valve replacement, if a valve is found leaking | $275 – $1,200 | price list, by type and size |
Winterization is the base visit. If we find a leaking valve or a broken head while the system is open, that repair is quoted separately before we do it, so the shut-down price stays what it is.
If you want the whole picture, our pricing page lists every service, and the irrigation page explains what start-up and shut-down cover.
Do it yourself, or hire it out?
You can do steps 1, 2 and 4 yourself if your system has manual drain valves and you know where they are. The backflow preventer is where DIY usually goes wrong. Leave one valve half-open and the cheapest job of the year becomes a replacement. Blowing out lines with the wrong equipment can also split fittings, which is a different way to end up with the same repair.
If you are not sure which type of system you have, that is a good reason to hand it off rather than experiment in October.
When to call us
Call if your system has no manual drains, if you have never found the isolation valve, or if the backflow preventer sits above ground and unwrapped. Call too if a zone has been acting up all summer. We would rather find the cause while the system is empty than learn about it when it is running in April. Our crew is licensed and insured, and we do the work ourselves rather than subcontracting it. To book, use the quote page.
FAQ
Do you need to winterize sprinklers in Atlanta? Yes. Atlanta averages its first freeze around November 13 and has frozen as early as October 11. One hard freeze with water left in the lines can crack the backflow preventer or the mainline.
When should I winterize my sprinkler system in Georgia? Before early November. Late October is a safe window for most of metro Atlanta, and a little earlier toward northeast Georgia, where the first freeze averages around November 7 in Athens.
How much does sprinkler winterization cost? $95 to $120 on our price list. Spring start-up is $175 to $225.
What happens if I don't winterize? In a mild year, often nothing. In a hard-freeze year, the backflow preventer or exposed lines can split, and you will not see it until spring start-up.
Freeze dates from the National Weather Service, Peachtree City office. Prices from our price list. Updated October 2026.