How to Prevent Frozen Pipes: Winter Plumbing Tips for Ontario Homeowners

With winter settling in across Ontario, homeowners in Ajax, Oshawa, Whitby, and surrounding areas need to start thinking about more than just snow shovelling and cozy nights by the fire. The reality of freezing temperatures brings an often-overlooked risk: frozen pipes. Not only can frozen pipes disrupt your daily routine, but they can also lead to costly water damage if they burst. At Call the Plumbing Doctor, we believe prevention is the best medicine—so here are our top winter plumbing tips to keep your home safe and stress-free this season.

Why Pipes Freeze in Ontario Winters

Ontario winters are known for their dramatic temperature drops, especially at night and during cold snaps in December and January. Pipes located in unheated areas like basements, garages, attics, and exterior walls are especially vulnerable. When water inside these pipes freezes, it expands, putting enormous pressure on the pipe walls until they may crack or burst.

Where Are Frozen Pipes Most Common in Durham Region?

Homeowners in neighborhoods from Clarington to Uxbridge often experience frozen pipes in:

• Crawl spaces
• Attached garages
• Basements or cold storage rooms
• Outdoor spigots
• Pipes running along exterior walls

Understanding these risk areas is the first step toward prevention.

Top Tips to Prevent Frozen Pipes

Take these practical, affordable steps to keep your plumbing safe all winter long:

Insulate Exposed Pipes

Wrap pipes in unheated areas with foam pipe insulation sleeves, available at local hardware stores in Pickering, Bowmanville, or Port Perry. Pay extra attention to pipes near exterior walls.

Seal Drafts and Cracks

Use caulk or spray foam to seal gaps around holes where pipes enter your home. Even a small breeze can seriously drop the temperature around your plumbing. This step is especially important in older homes throughout Whitby and Courtice.

Keep the Heat On

Don’t turn your thermostat too low, even if you’re traveling for the holidays. Set your home temperature no lower than 13°C (55°F). This is especially crucial during the winter holidays when many families leave town.

Let Faucets Drip

Allowing a trickle of water to run overnight on especially cold nights can relieve pressure buildup and prevent pipes from freezing. Focus on faucets connected to pipes running along exterior walls.

Open Cabinet Doors

Open bathroom and kitchen cabinet doors to let warm air circulate around pipes, especially if those fixtures are on exterior walls. Just remember to move any household cleaners or chemicals out of reach of pets or children!

At What Temperature Do Pipes Freeze in Ontario?

Ontario pipes are at risk of freezing when temperatures drop to -6°C (21°F) or below for extended periods—especially in uninsulated or unheated spaces. Homes in areas like Newcastle and Blackstock can experience sub-zero temperatures throughout the winter, making pipe protection crucial.

What To Do if Your Pipes Freeze

If you suspect a pipe is frozen—no water flow from a faucet, for example—act quickly:

• Shut off the main water supply to minimize potential damage.
• Gently warm the pipe using a space heater or hairdryer. Never use open flames.
• Contact a licensed plumber immediately if you notice any cracks, leaks, or water damage.

How Call the Plumbing Doctor Can Help

Our team serves communities throughout Durham Region, offering rapid response for frozen pipe emergencies and proactive solutions like pipe insulation, repairs, and winterizing plumbing systems. We’re proud of our reputation for quality service and affordable rates, with most of our work coming from repeat and referred customers.

Get Winter-Ready with Call the Plumbing Doctor

With Ontario’s unpredictable winters, it's never too early to protect your home from frozen pipes. Whether you need professional pipe insulation, emergency thawing, or want to upgrade to a water-conditioning solution, our friendly team is only a call away. Enjoy your winter festivities with peace of mind—contact Call the Plumbing Doctor today to schedule your seasonal plumbing checkup in Ajax, Oshawa, Whitby, or any surrounding community. Stay warm, stay safe, and let us keep your home flowing smoothly all winter long!