How to Prevent Burst Pipes from Freezing in Winter

How to Prevent Burst Pipes From Freezing in Winter

Knowing how to prevent burst pipes from freezing in winter can help protect your home from sudden leaks, flooding and expensive water damage. Pipes often burst after water inside them freezes and expands. As pressure builds, a pipe, joint or fitting may crack. Then, when the ice begins to thaw, water can escape quickly.

Toronto winters can place extra stress on plumbing near exterior walls, garages, basements, crawl spaces and other cold areas. Therefore, the best time to protect your pipes is before severe cold arrives.

Find the Pipes Most Likely to Freeze

First, walk through your home and identify plumbing in colder areas. Pipes near outside walls, garages, crawl spaces, attics and unheated rooms may face a greater risk.

Also, check plumbing near windows, doors, foundation openings and areas where cold air enters the building. Even a small section of exposed pipe can become a problem during a cold spell.

Insulate Exposed Water Pipes

Foam pipe covers can help reduce heat loss from vulnerable plumbing. Therefore, add insulation to accessible pipes in cold areas before winter temperatures arrive.

Pay particular attention to pipes near outside walls and in garages or crawl spaces. In addition, make sure the insulation fits properly and does not leave large exposed gaps.

Seal Cold Air Leaks Around Plumbing

Cold air can freeze a pipe even when the rest of the room feels reasonably warm. For example, drafts may enter around windows, doors, dryer vents, electrical openings and holes where plumbing passes through walls.

Seal unwanted air leaks where appropriate. As a result, warmer indoor air can stay around the plumbing for longer.

Disconnect Outdoor Hoses Before Freezing Weather

Outdoor faucets often face freezing temperatures first. Before winter, remove garden hoses and drain exterior plumbing when your system allows it.

If your home has an indoor shutoff for the outside faucet, close it and drain the line. This simple step helps reduce trapped water that may freeze inside the pipe.

Keep Garage Doors Closed

If water lines pass through your garage, keep the garage door closed during cold weather. Opening it for long periods can quickly lower the temperature around nearby plumbing.

In addition, check that exposed garage pipes have suitable insulation.

Stop Pipes From Freezing During Extreme Cold

Keep the Home Warm

During severe cold, maintain heat throughout the home. Avoid allowing rooms with plumbing to become extremely cold, even if you do not use those rooms often.

The City of Toronto recommends keeping areas around indoor water pipes warm, especially near the water meter. It also recommends extra care when temperatures fall well below zero.

Open Cabinet Doors Around Plumbing

Kitchen, bathroom and laundry cabinets can trap cold air around pipes. Therefore, open cabinet doors when very cold weather arrives so warmer room air can circulate around the plumbing.

This can be especially useful for sinks installed against exterior walls.

Know Where the Main Water Shutoff Is

One of the most important ways to prevent burst pipes from freezing in winter from turning into major water damage is knowing how to stop the water quickly.

Locate your main water shutoff valve before an emergency. In many Toronto homes, it sits near the foundation wall where the water service enters the building.

The City of Toronto frozen pipe guide recommends knowing the location of the main shutoff in case a frozen pipe breaks.

Consider Water Movement for Pipes That Often Freeze

If a particular pipe regularly freezes during very cold weather, the City of Toronto says homeowners may choose to run a pencil-thin stream of cold water to keep some water moving through the plumbing.

However, this uses metered water and should not replace proper insulation or repairs. Also, keep the drain completely clear to prevent an overflow.

Prepare Plumbing Before Leaving Home

If you plan to travel during winter, do not simply turn the heat off. Instead, keep the home warm enough to protect plumbing.

For a longer absence, the City advises that homeowners may close the main water valve and open a basement cold-water tap to drain remaining water from the plumbing. However, make sure this approach is suitable for your home’s plumbing and heating equipment.

In addition, consider having someone check the property while you are away.

Use Smart Leak Detection

Water sensors can provide an early warning if a pipe begins leaking while you are asleep or away from home. Place sensors near mechanical rooms, water heaters, laundry equipment and plumbing that has leaked before.

Some systems can also connect to automatic shutoff equipment. Therefore, leak detection can add another layer of protection during winter.

What to Do if a Pipe Freezes or Bursts

Watch for Frozen Pipe Warning Signs

Little or no water from a faucet can be an early warning of a frozen pipe. You may also notice unusually low water pressure during very cold weather.

If several fixtures work normally but one area has no water, plumbing near that fixture may have frozen.

Thaw Frozen Pipes Carefully

If you can safely reach the suspected frozen section, open a faucet and apply gentle heat. For example, the City lists a hair dryer, electric heating pad, warm towel or warm surrounding air as possible options.

Never use an open flame, torch, charcoal stove or similar device to thaw plumbing. These methods create a serious fire hazard.

Also, do not leave electrical heating equipment unattended. If you cannot locate the frozen section or thaw it safely, contact a licensed plumber.

Check the Pipe as It Thaws

A frozen pipe may not leak until ice begins to melt. Therefore, watch the plumbing carefully as water flow returns.

Check joints, fittings and surrounding building materials for dripping or spraying water. If a crack appears, shut off the main water supply immediately when it is safe to do so.

Act Quickly After a Burst Pipe

If a pipe bursts, first stop the water source. Next, contact a plumber to repair the damaged pipe. Then remove standing water and begin drying affected materials.

GTA Restoration provides emergency plumbing services and water damage restoration throughout Toronto and the GTA.

Check for Water Behind Walls and Floors

Burst pipe water can travel farther than it first appears. For example, water may move below flooring, behind drywall, through insulation or into rooms below the leak.

As a result, simply wiping up visible water may not fully dry the property. Moisture readings and water leak detection can help locate hidden wet areas.

Dry Wet Building Materials Quickly

After stopping the leak, remove standing water and begin structural drying as soon as practical. Air movement and dehumidification can help remove moisture from affected materials.

However, the correct drying plan depends on the amount of water, materials involved and how far the moisture travelled.

Document Burst Pipe Damage

Take clear photos and videos when it is safe to do so. In addition, keep plumbing invoices, drying records, moisture readings and repair estimates.

Insurance coverage depends on your specific policy and the circumstances of the loss. Therefore, contact your insurer or broker for coverage questions. GTA Restoration can also provide restoration documentation and insurance claims support.

Prevent the Same Pipe From Freezing Again

Once the immediate problem is under control, find out why the pipe froze. A cold draft, poor insulation, low indoor temperature or exposed plumbing may still need attention.

Otherwise, the same section may freeze again during the next cold period.

Ultimately, the best way to prevent burst pipes from freezing in winter is to prepare vulnerable plumbing before temperatures drop. Insulate exposed pipes, stop drafts, keep cold areas warm, disconnect outdoor hoses and locate your main shutoff valve.

In addition, watch problem areas during extreme cold. These practical steps can help prevent burst pipes from freezing in winter and reduce the chance of serious water damage.

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Frozen Pipe or Burst Pipe Emergency?

GTA Restoration provides emergency plumbing, water extraction, moisture detection and structural drying throughout Toronto and the GTA.

If a pipe has burst, shut off the water when safe and act quickly before moisture spreads through the property.

Call Us: 416-800-0000

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