Lowcountry winters are gentle most of the time, which is exactly why the occasional hard freeze catches people off guard. Water heaters work harder in the cold, and unprotected pipes can fail fast. A short checklist now saves a cold, expensive surprise later.
Why Cold Weather Is Hard on Water Heaters
When incoming water is colder, your heater has to work longer to reach the same temperature. That means more run time, higher bills, and more strain, especially on an older or undersized unit. It is also the season when a heater on its last legs finally gives out, right when you want a hot shower most.
Before the Cold Arrives
- Flush the tank. Sediment makes a heater work harder. Clearing it improves efficiency going into the heavy-use season.
- Check the temperature setting. Around 120 degrees is the sweet spot for comfort, safety, and efficiency.
- Insulate exposed pipes. Hot and cold lines in unconditioned spaces like garages, crawlspaces, and attics are the most vulnerable to freezing.
- Know where your shutoff is. If a pipe does burst, shutting off water fast limits the damage.
During a Hard Freeze
- Let a faucet drip slightly to keep water moving through vulnerable pipes
- Keep cabinet doors open under sinks on exterior walls
- Do not turn your water heater off, even if leaving town; keep it running to protect the system
If You Lose Hot Water
A sudden loss of hot water during a freeze often points to a strained or failing unit, or a frozen line. If it happens, do not force the system. Call for service before a small issue becomes water damage.
We Are Here When It Counts
Cold snaps are when we get the most emergency calls in the Charleston area. A quick pre-winter check goes a long way, and we are available for same-day service across Mount Pleasant and Charleston when you need it.