How to Keep Your Pipes From Freezing in a Connecticut Winter

Most frozen pipe calls we get in Glastonbury sound the same. The homeowner went to bed with everything fine, woke up to a tap that gives nothing but a trickle, and now they are standing in the kitchen wondering whether something behind the wall has already let go.

Here is the part worth knowing ahead of time: by the time the water stops moving, the pipe has usually been at risk for hours. The freeze did not happen at the moment you noticed it. It happened overnight, in the coldest, least insulated run in the house, while everyone was asleep.

So let us walk through where that run usually is, when it actually becomes a problem, and what to do if you are reading this with a frozen pipe right now.

Where pipes freeze first in a CT home

A pipe freezes where cold air reaches it and warm house air does not. In the homes around here, that points to a short list of usual suspects.

• Exterior walls. Older Glastonbury colonials were built before anyone insulated a supply line. A pipe running up an outside wall to a second-floor bathroom is sitting in cold air with nothing between it and the siding.
• Unheated garages. The line feeding a utility sink or a wall spigot in the garage is often the first to go, because the garage tracks the outdoor temperature closely.
• Crawlspaces and rim joists. If you have a crawlspace or a cold band along the top of the foundation, the pipes down there get no help from the furnace.
• Basements that run cold. A finished basement holds heat. An unfinished one with a drafty bulkhead door does not.
• Anywhere in a house kept too low while you are away. Drop the thermostat to 50 for a week in January and the pipes in those cold spots will follow the air down.

If you have well water out toward Hebron or Marlborough, pay extra attention to the pressure tank and the line coming in from the pump. Those often sit in the coldest corner of the basement.

The temperature where the risk turns real

People assume pipes freeze at 32 degrees. They can, but it usually takes a sustained cold snap to do real damage indoors, because the house buffers the temperature.

The number to watch is around 20 degrees Fahrenheit outside, especially overnight and especially when it stays there for a stretch. Central Connecticut hits that regularly from late December through February. A single freezing night rarely bursts a pipe inside a heated house. Three nights in the teens with wind, with a thermostat set low and a cold draft hitting an exterior wall, is a different story.

Wind matters more than the thermometer suggests. A 15 degree night with a stiff wind pushing cold air through a foundation gap will freeze a pipe faster than a still 10 degree night will.

What actually prevents it

None of this is complicated. It is mostly about not leaving cold air alone with your pipes.

• Insulate the runs you can reach. Foam pipe sleeves cost a few dollars and slide right on. Hit the lines in the garage, the crawlspace, and along exterior walls in the basement.
• Let a faucet drip during a hard freeze. A thin stream of water moving through the pipe is much harder to freeze than still water. Pick the faucet farthest from where your water comes in.
• Open cabinet doors under sinks on outside walls. Kitchen and bathroom sinks on exterior walls benefit from the warm room air reaching the pipes. Open the doors on the cold nights.
• Disconnect the garden hoses before winter. Water left in a hose bib freezes, expands, and cracks the valve inside the wall. You will not find out until spring when you turn it on and water pours into the basement.
• Keep the heat at a floor temperature when you travel. Never below 55. If the house will be empty for a stretch, that floor temperature is cheap insurance against a four-figure repair.

A pre-winter walkthrough catches the spots a homeowner cannot see. We do these in the fall, before the first real cold, and most of what we find is a ten-minute fix in October that would have been a flooded ceiling in January.

If a pipe freezes tonight

First, find your main shut-off and know where it is before you need it. It is usually near where the water enters the basement, often by the meter or the pressure tank.

If a tap has slowed to a trickle, the pipe feeding it is starting to freeze. You have a window to act.

1. Open the faucet. Leave it open so water can move as the ice melts, and so pressure has somewhere to go.
2. Warm the pipe gently. A hair dryer, a heat lamp, or towels soaked in hot water work. Start near the faucet and move back toward the cold section.
3. Never use an open flame. No torches, no propane heaters held against the pipe. That is how houses catch fire, and it can crack the pipe outright.

If the pipe has already burst, you will know it once it thaws, because water will come out where the crack is rather than the faucet. Shut the main off immediately and call. A burst pipe is not a wait-until-morning problem. It is water running into your house until someone stops it.

Why we treat this as an emergency

A frozen pipe sits right next to two of the most expensive things that can happen to a house: water damage and a heating failure. A pipe freezes because part of the house got too cold, which sometimes means the heat itself is struggling. Fix one and you often have to look at the other.

That is the reason our emergency line runs around the clock through the winter. If your heat quits or a pipe lets go at two in the morning, that is exactly when you need someone to pick up, not a callback queue for Monday.

If you are in Glastonbury or a town nearby and want the cold spots in your house found before they cause trouble, get in touch or call us. The fall walkthrough is the cheapest plumbing we do all year.