The sound of water where there shouldn't be any
If you're reading this, there's a decent chance you just heard a hiss behind a wall, or found a damp spot on a ceiling below an upstairs bathroom, or walked into the kitchen to a puddle under the sink with no obvious source. Springfield gets these calls every time the temperature drops hard and fast, usually after a week of mild weather lulls everyone into thinking winter's done. It isn't the cold itself that causes the trouble. It's the swing. A night at 15 degrees after a string of 40s catches pipes, and houses, off guard.
Older homes here, the ones built from the 1920s through the 1960s in neighborhoods like Rountree, Washington Avenue, or the blocks around Drury, fail in a different pattern than new construction out toward Ozark or Nixa. Knowing that pattern helps you figure out whether you're dealing with a quick fix or something that needs a professional before the weekend's over.
Why age matters more than you'd think
A lot of Springfield's older housing stock has galvanized steel or early copper supply lines, sometimes run through uninsulated crawlspaces or exterior walls that were never meant to handle Ozark winters the way building codes demand now. Those crawlspaces are often open to outside air through vents that nobody's closed in years, which means pipes down there see nearly the same temperature as the yard.
Add to that additions and remodels. A lot of these houses have had a bathroom added over an old porch, or a kitchen bumped out over a slab with no real insulation underneath. Those newer sections, ironically, are often the most exposed because they weren't tied into the original heating plan of the house. That's where freezing starts first, not in the main part of the home.
More on this from Reading List How An Older Springfield House Fails Differently In A Freeze.
What actually happens when the pipe gives
A frozen pipe doesn't usually burst while it's frozen. It splits from the pressure of ice forming, and you don't find out until the thaw starts and water finds the crack. That's why a lot of Springfield homeowners get hit with damage a day or two after the cold snap, right when they think the worst is over and the sun's back out.
In an older house, the break is often hidden, inside a wall cavity, under a subfloor, behind a built-in cabinet from 1958 that nobody wants to tear out. The water travels along framing and shows up somewhere far from the actual break, which makes it hard to guess where the real problem is just by looking at the stain.
What you can check yourself
Start with the crawlspace vents and any exposed pipe runs under sinks on exterior walls. If you can get to them safely, foam pipe insulation and keeping cabinet doors open during a hard freeze buys real protection for not much money. Check if your water heater and main shutoff are in an unheated garage or crawlspace, common in houses built before attached garages were insulated spaces.
If you've got a drip at a faucet on an exterior wall during a freeze warning, that's a reasonable thing to let run a little, it relieves pressure in the line. Know where your main shutoff valve is before you need it in a hurry. In many of these older homes it's a gate valve that hasn't been turned in years and may not seat properly, which is worth testing on a calm day, not during an emergency.
When it's not a homeowner job anymore
If water is actively coming through a ceiling or wall, or you can't find or operate the main shutoff, stop troubleshooting and get help. A burst line inside a wall in an older home often means cutting into plaster or old lath, and guessing wrong adds repair cost without fixing the leak. Low water pressure across the whole house after a freeze can mean a break underground between the meter and the foundation, which isn't something you can patch from inside.
Any time you smell gas near a water heater that's frozen or damaged, or you see water near an electrical panel, that's not a wait-and-see situation at any hour. Springfield's older housing has enough quirks, knob-and-tube remnants, mixed pipe materials, additions on different foundations, that a freeze emergency is one of the few home problems where calling someone at 2 a.m. is the sensible choice rather than the dramatic one.