A burst supply line can put a lot of water into your house very quickly. The difference between a bad afternoon and a five-figure insurance claim usually comes down to how fast the water stops. Here is what to do, in order.
1. Shut off the water
Everything else waits. Go to your main shutoff and close it — turn clockwise until it stops. If it is a lever-style ball valve, rotate it a quarter turn so the handle sits across the pipe.
In most Connecticut homes the main valve is in the basement on the wall facing the street, usually near the water meter. In houses on a slab, check a utility closet, the garage, or near the water heater. If you truly cannot find it, there is a curb stop at the property line, but it typically needs a special key and is often the water company's to operate.
If you are reading this and nothing is currently leaking: go find your shutoff right now and turn it off and on once. Valves that have not moved in fifteen years seize, and discovering that during an emergency is a genuinely miserable experience. Two minutes today.
2. Open the taps
Once the main is closed, open the lowest faucets in the house — basement or first floor — and let the remaining water in the pipes drain out there instead of through the break. Flush toilets once. This depressurizes the system and noticeably reduces what keeps coming out of the damaged section.
3. Kill the power if water is anywhere near electrical
If water is reaching outlets, a furnace, a water heater, or the panel itself, shut off the affected circuits — but only if you can reach the panel while standing somewhere dry. If you cannot get to it safely, do not improvise. Call an electrician or the utility.
4. Shut off the water heater
If the main is off and the heater keeps running, it can be damaged. Electric: switch off its breaker. Gas: turn the control to "pilot" or off.
5. Start moving water and air
Towels, a wet vac, a mop, buckets. Get standing water off floors and out from under furniture. Lift furniture legs onto foil or wood blocks so they stop wicking. Open windows if the weather allows and get fans running. Wet building materials are on a clock — mold can begin to develop in roughly 24 to 48 hours — so drying starts now, not after the plumber leaves.
6. Photograph everything before you clean up
Wide shots of each affected room, close-ups of the failed pipe, photos of damaged belongings individually. Do this before you haul anything to the curb. Then call your insurer — sudden and accidental water damage is commonly covered, though gradual leaks often are not, and policies differ.
7. Then call the plumber
Yes, seventh. A plumber cannot get there faster than you can turn a valve, and the first six steps are what actually limit the damage. Once the water is off and the room is documented, make the call.
Why pipes burst here
In Connecticut, the overwhelming cause is freezing. Water expands as it freezes, pressure builds between the ice plug and a closed faucet, and the pipe splits — often somewhere warm-ish, not at the ice itself. The vulnerable runs are the ones in unheated space: crawlspaces, garages, attics, exterior walls, and the pipe feeding an outdoor spigot.
Corrosion is the other common cause, particularly in older homes with galvanized steel supply lines. Those fail gradually and then suddenly.
Preventing the next one
- Disconnect garden hoses before the first freeze and shut off the interior valve feeding each outdoor spigot. A connected hose traps water in the sillcock and that is a very common winter split.
- Insulate pipes in unheated spaces — foam sleeves cost a few dollars per length and take an afternoon.
- On the coldest nights, let a faucet drip on any run you know is vulnerable. Moving water is much harder to freeze.
- Open cabinet doors under sinks on exterior walls so room heat reaches the pipes.
- Never set the thermostat below about 55°F when you are away, and if the house will be empty for a long stretch in winter, have the system drained properly.
- Consider a leak detector near the water heater and washing machine. Inexpensive, and they catch the slow failures that do the expensive quiet damage.
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