Winter Plumbing Myths Busted: What Every Homeowner Should Know

Call the Plumbing Doctor Inc. • December 17, 2025

Ontario winters can be both beautiful and challenging, especially for homeowners in Ajax, Whitby, Oshawa, and the surrounding areas. As the temperatures drop and holiday plans ramp up, it’s important to separate winter plumbing facts from fiction. Myths about winter plumbing can lead to costly mistakes and unnecessary emergencies. At Call the Plumbing Doctor, we are here to help you stay warm, dry, and worry-free all season long.


Myth 1: Pipes Only Freeze in Extremely Cold Weather


It’s a common belief that only extreme cold can cause your pipes to freeze. In reality, pipe freezing often occurs during moderately cold snaps—sometimes as soon as temperatures dip below -7°C (20°F). That means homes in Bowmanville, Pickering, or Uxbridge can be at risk even when winter feels mild.


Here’s why:


  • Uninsulated pipes in areas like basements, crawl spaces, and garages are especially vulnerable.
  • Drastic temperature drops at night can quickly freeze standing water in pipes.
  • Wind chill can penetrate foundation cracks, impacting plumbing near exterior walls.

Pro Tip: Insulate exposed pipes and keep your home heated to safeguard against frozen pipes—no matter what the thermometer says.


Myth 2: A Dripping Faucet Prevents All Freezing


Leaving a faucet dripping does offer some protection, but it’s not a fail-safe solution. The slow movement of water can help prevent freezing in the short term, but it doesn’t address underlying vulnerabilities.


Here’s a better approach:


  • Open cabinet doors below sinks to allow warm air to circulate around pipes.
  • Seal leaks and cracks in your foundation or basement walls—common issues in older homes in Port Perry or Clarington.
  • Consider professional pipe thawing services if you suspect pipes are at risk.


Myth 3: Hot Water Tanks Don’t Need Winter Attention


During December, your hot water tank works overtime, especially with extra showers, guests, and holiday cleaning. Ignoring your hot water heater can lead to breakdowns just when you need it most.


Keep your hot water tank running smoothly by:


  • Scheduling a professional inspection with Call the Plumbing Doctor before a deep freeze hits.
  • Flushing your tank to remove sediment buildup—common in municipal water in places like Courtice and Newcastle.
  • Inspecting for leaks or rust that could escalate during colder weather.


Myth 4: All Holiday Clogs Are Caused by Food


Holiday gatherings bring a lot of joy—and unfortunately, more plumbing calls. Many homeowners assume that food scraps alone are responsible for kitchen drain clogs, but winter plumbing issues often have multiple causes.


Other common culprits include:


  • Pouring fats and oils down the drain, which solidify in cold pipes.
  • Excessive use of bathroom fixtures with extra houseguests.
  • Disposal of “flushable” wipes, which don’t break down in the sewer system.

To prevent these problems, avoid pouring grease down your drains and remind holiday guests to use wastebaskets for wipes and personal products.


Do Frozen Pipes Always Burst?


Not all frozen pipes burst, but the risk is high. When water inside a pipe freezes, it expands and increases pressure. If the pressure has nowhere to go, the pipe can crack—often in hidden spots behind walls or under floors. Burst pipes can flood basements and damage foundations, particularly in homes around Blackstock and Brooklyn where older plumbing is common.


If you suspect a frozen pipe, act fast:


  • Turn off the main water valve.
  • Call a professional plumber with experience in emergency pipe thawing and repairs.


Winter-Proof Your Home with Trusted Local Experts


Winter in Ontario brings its share of challenges, but understanding the truth behind common myths can protect your home and your wallet. Whether you need pipe insulation, hot water tank maintenance, drain cleaning, or emergency repairs, Call the Plumbing Doctor is here to help homeowners in Ajax, Pickering, Oshawa, and nearby communities.


Enjoy a worry-free winter by reaching out to our welcoming team today. Schedule your seasonal plumbing check-up and let us help you keep the holidays bright and your plumbing problem-free!

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