Short answer: Yes, and it happens faster than you’d think!
We get a lot of questions about frozen pipes during Virginia winters, especially from folks who’ve never dealt with them before. So let’s clear up the confusion with some straight answers.
How cold does it have to be for pipes to freeze?
Most pipes are at risk when temperatures drop below 20°F, especially if they’re in unheated areas like crawl spaces, attics, or exterior walls. It’s not just about how cold it gets – it’s about how long it stays cold. A brief cold snap might not cause problems, but several hours below freezing definitely can.
Why do frozen pipes burst?
When water freezes, it expands. That expansion creates thousands of pounds of pressure inside your pipes. Eventually, something’s gotta give, and usually it’s the pipe.
What are the warning signs?
If you turn on a faucet and only get a trickle (or nothing at all), you probably have a frozen pipe somewhere. You might also notice frost on exposed pipes or hear strange sounds when you run water. Don’t wait to see if it thaws on its own – that’s when bursts happen.
How do I protect my pipes?
Let faucets drip slightly when temperatures drop. Keep cabinet doors open under sinks so warm air can reach the pipes. If you have vulnerable pipes, consider pipe insulation or heat tape. And if you’re going away for the holidays, keep your thermostat at least at 55°F.
What should I do if I think a pipe is frozen?
First, turn off your main water supply. Then call us. Trying to thaw pipes yourself with open flames or high heat can cause more damage – or worse. Our plumbing repair team has the right equipment to safely thaw pipes and check for damage.
Need help with frozen pipes or want to prevent them before the next cold snap? Call Gilman Heating & Cooling at 804-207-3881 or contact us online. We’ve been keeping Virginia homes protected for over 100 years.