South Jersey is under a blast of frigid temperatures as the polar vortex continues to bring dangerously cold conditions to our area, prompting utilities and safety experts to urge homeowners to take simple steps now to prevent frozen and bursting pipes before costly damage occurs.

“When temperatures stay below freezing for extended periods, water inside pipes can freeze and expand, often leading to cracks or full bursts that result in extensive water damage,” said a spokesman for New Jersey American Water, which shared winter preparedness guidance for customers.

Pipes located in unheated areas such as garages, crawl spaces, and along exterior walls are most vulnerable and should be protected first.

Here are key precautions homeowners can take:

• Keep a slow trickle of water flowing from at least one faucet. Running water is less likely to freeze and relieves pressure inside pipes during severe cold.

• Maintain consistent indoor heat — avoid turning down the thermostat overnight or when you’re away. Setting it at no lower than about 55°F can significantly reduce the risk of freeze-ups.

• Insulate exposed pipes with foam sleeves or heating tape in attics, basements, and other cold spaces.

• Open cabinet doors under sinks on exterior walls so warm air can circulate around vulnerable plumbing.

• Disconnect outdoor hoses and drain spigots to prevent trapped water from freezing in outdoor lines.

If you do suspect pipes have frozen — indicated by no water flow or reduced pressure — experts recommend shutting off the main water supply immediately and contacting a professional rather than risking a burst during thaw.

With bitter cold expected to persist, these proactive steps can make the difference between cozy winter comfort and costly home repairs.