Search Youngs Insurance

Youngs Insurance Blog

Burst Pipes: A Guide to Repair and Prevention

Posted Jan 26th, 2024 in Did You Know?, General, Home Insurance, HOMEINSURANCE, In the News, Insurance Tips, Media, TENANTINSURANCE


In Ontario, where the winters can be unforgiving and bone-chilling, homeowners and insurance companies alike have been grappling with a chilling reality. Over the past few months, some insurance companies have reported a startling surge in cold weather-related claims, marking a significant departure from the same period in the previous year. The culprit behind this alarming trend? Frozen and burst pipes. As temperatures plummet, the consequences of burst pipes have become a growing concern. In this blog, we will delve into the dangers of burst pipes in Ontario, exploring the havoc they wreak on homes and lives, and uncovering the vital steps that can help you safeguard your property from these frigid nightmares.

What Causes Pipes to Freeze?

The fundamental cause of frozen pipes is, of course, freezing temperatures. When the mercury drops below the freezing point (0°C or 32°F), any water-filled pipes that are exposed to these frigid conditions become vulnerable. Pipes that are located in unheated or poorly insulated areas, such as basements, crawl spaces, attics, or exterior walls, are more likely to freeze. Insufficient insulation allows the cold air to penetrate and surround the pipes, lowering the temperature of the water inside them.

When water sits idle in a pipe without any flow, it becomes more susceptible to freezing. This can happen in pipes that are rarely used, like outdoor faucets, or during periods of inactivity in certain parts of the plumbing system.

How Quickly Do Pipes Freeze?

Pipes have the potential to freeze within a relatively short timeframe, often taking as little as six to eight hours, which could occur overnight. Indoor pipes, on the other hand, are generally more insulated and resilient, typically necessitating temperatures of 20 degrees Fahrenheit or lower for freezing to become a concern, as indicated by the guidelines of the International Code Council.

The speed at which pipes freeze depends on various factors, including temperature, insulation, water flow, wind chill, and pipe material. Pipes with continuous water flow, even at a slow drip, are less likely to freeze rapidly. Additionally, wind chill can accelerate the freezing process by removing heat from the pipe's surface.t varies depending on the source and extent of the damage. In some cases, it may manifest within hours, while gradual leaks may take days or even weeks to become noticeable. Swift identification and mitigation are essential to prevent further harm to your property.

What Causes Frozen Pipes to Burst?

Unlike most substances, water expands when it freezes. This expansion exerts tremendous pressure on the walls of the pipe, which can lead to cracks or ruptures. This is why a frozen pipe can often result in a burst pipe when the ice inside expands.

Do All Frozen Pipes Burst?

Not all frozen pipes will burst, but the risk of bursting exists under specific conditions. The likelihood of a frozen pipe bursting increases with factors such as the duration of freezing, high water pressure, pipe material, inadequate insulation, small pipe size, and extremely low temperatures. Properly insulated pipes, those near heat sources, and pipes with a constant water flow are less likely to freeze and burst. Thawing frozen pipes carefully is essential to minimize the risk of bursting.

What are the Risks of Frozen Pipes?

Frozen pipes can pose several significant dangers to homeowners. These dangers can result in both immediate and long-term consequences. Here are some of the primary risks:

Water Damage: The most immediate and apparent danger of frozen pipes is the potential for them to burst. When a frozen pipe bursts, it can release a torrent of water into your home. This water damage can lead to structural damage, ruined possessions, and expensive repairs. Water can seep into walls, ceilings, and floors, causing rot, mould growth, and deterioration of building materials.

Costly Repairs: Repairing burst pipes and the resulting water damage can be a costly endeavour. Homeowners may need to hire professionals to address the plumbing issue, replace damaged pipes and insulation, and restore their property to its pre-damage condition. Insurance may cover some of these costs, but homeowners often face deductibles and potential rate increases

Health Hazards: Water damage from burst pipes can create an environment conducive to mould growth. Mold poses health risks, including respiratory issues and allergies. It can thrive in hidden places such as walls and insulation, making it challenging to detect and remove.

Loss of Valuables: Burst pipes can damage or destroy valuable possessions, from electronics to family heirlooms. The sentimental and financial losses can be devastating.

Utility Interruptions: Frozen pipes can lead to disruptions in your water supply. When pipes freeze, you may experience reduced or no access to running water, making it challenging to perform essential tasks like cooking, cleaning, and bathing.

Energy Costs: Frozen pipes can also lead to higher energy bills. To prevent freezing, homeowners often need to keep their heating systems running at a higher temperature than usual, which increases energy consumption and utility costs.

Structural Damage: In extreme cases, frozen pipes can cause structural damage to a home. The expansion of ice within the pipes can exert pressure on walls and ceilings, leading to cracks, leaks, and weakening of the building's integrity.

Signs of Frozen Pipes

Recognizing the signs of frozen pipes early can help you take action to prevent potential damage or bursting. Here are some common signs of frozen pipes:

No Water Flow: One of the most obvious signs is when you turn on a faucet and no water comes out or only a trickle is present. This can indicate that the water inside the pipe is frozen.

Frost on Pipes: If you have visible pipes in unheated areas like basements or crawl spaces, you may notice frost or ice on the exterior of the pipes. This is a clear indicator that the pipes are frozen.

Strange Odors: Frozen pipes can sometimes lead to unusual odours. If you detect strange smells coming from your faucets or drains, it could be a sign of a frozen pipe.

Unusual Sounds: You might hear unusual sounds coming from your plumbing system, such as banging, clanging, or creaking. These noises can occur as the frozen water expands within the pipes.

Visible Bulging: In some cases, you may notice a bulging section of a pipe. This can be a result of the water within the pipe freezing and causing it to expand.

Reduced Water Pressure: Reduced water pressure in multiple faucets or fixtures throughout your home can be a sign of frozen pipes in the water supply lines.

Frozen or Burst Fixtures: Outdoor faucets or fixtures can freeze and burst, leading to visible damage. If you notice any outdoor fixtures that are not working or appear damaged, it's a sign to check for frozen pipes.

Higher Water Bills: Unexpectedly high water bills during the winter months could be indicative of a hidden water leak caused by a frozen or burst pipe.

What Do You Do If Your Pipes Are Frozen?

If you discover that your pipes are frozen, it's essential to take immediate action to prevent them from bursting and causing water damage. Here's what you should do if you find yourself in this situation:

Turn Off the Water Supply
Locate your home's main water shutoff valve and turn it off. This will prevent additional water from entering the frozen pipes once they thaw and potentially burst.

Open Faucets:
Open the affected faucets both hot and cold to relieve pressure within the pipes. This can help minimize the risk of a burst pipe. Leave the faucets open throughout the thawing process.

Thaw the Pipes:
You can attempt to thaw the frozen pipes using one of the following methods:

a. Warm Towels or Rags: Soak towels or rags in hot water and wrap them around the frozen pipe. You can secure them with duct tape or other insulating materials.

b. Hairdryer or Heat Gun: Use a hairdryer or heat gun on low heat to gently warm the frozen section of the pipe. Start from the faucet end and work your way toward the frozen area. Do not use high heat or open flames, as they can damage the pipe or cause a fire.

c. Space Heater: If the frozen pipe is in an accessible and safe location, you can use a space heater to warm the area around the pipe gradually.

d. Heat Tape: Electric heat tape can be wrapped around the pipe and plugged in to provide a constant source of heat to thaw the ice.

Be Patient: Thawing frozen pipes may take some time. Be patient and avoid using excessive heat, which can damage the pipe. Continue applying heat until you have a steady flow of water from the faucets.

Check for Leaks: After the pipes have thawed, carefully inspect them for any signs of damage or leaks. If you notice any, you should turn off the water supply again and address the issue.

Prevent Future Freezing: To prevent the pipes from freezing again, take steps to insulate them, keep your home adequately heated, and allow faucets to drip during extremely cold weather to maintain water flow.

Seek Professional Help: If you are unable to thaw the pipes yourself, if the frozen pipe is inaccessible, or if you experience repeated freezing issues, it's advisable to contact a licensed plumber for assistance. They can assess the situation and make necessary repairs or improvements to prevent future freezing.

Remember that preventing frozen pipes is always better than dealing with the consequences of burst pipes. Taking proactive measures to insulate and protect your plumbing during cold weather can save you from the inconvenience and potential damage caused by frozen pipes.

How to Prevent Frozen Pipes

Preventing frozen pipes and water damage in Ontario, or any cold climate, is crucial to avoid costly repairs and inconvenience. Here are some tips to help homeowners prevent frozen pipes:

Insulate Pipes:

  • Ensure that pipes in unheated areas, such as basements, crawl spaces, and attics, are well-insulated. This helps retain heat and prevents pipes from freezing.

Seal Air Leaks:

  • Seal any gaps or cracks in walls, windows, and doors to prevent cold air from entering your home and affecting the temperature of your pipes.
Maintain Adequate Heating:
  • Keep your home adequately heated, even if you are away. Set your thermostat to a temperature that prevents freezing. If you're leaving for an extended period, don't turn the heat off completely.
Allow Faucets to Drip:
  • Allow a small amount of water to drip from faucets served by exposed pipes. This helps relieve pressure in the system, reducing the risk of freezing.
Open Cabinet Doors:
  • Open cabinet doors under sinks to allow warm air to circulate around pipes, especially in kitchens and bathrooms where plumbing is often located against exterior walls.
Disconnect and Drain Outdoor Hoses:
  • Before winter sets in, disconnect and drain garden hoses. If possible, shut off outdoor water valves.
Insulate Exterior Walls:
  • Insulate exterior walls, especially those where plumbing is located. This can help keep the temperature more consistent and prevent pipes from freezing.
Install Pipe Heating Cable:
  • Consider installing electric heating cables on pipes, especially those prone to freezing. These cables can provide an additional layer of protection.
Keep Garage Doors Closed:
  • If your water supply lines run through the garage, keep the garage doors closed to maintain a warmer temperature.
Prepare for Vacations:
  • If you're planning to be away during the cold months, take extra precautions. Shut off the main water supply and drain the plumbing system, or ask a trusted neighbour or friend to check your home regularly.
Insulate the Attic:
  • Ensure that your attic is well-insulated to prevent heat loss, as this can indirectly affect the temperature of your pipes.
Install a Temperature Monitoring System:
  • Consider installing a temperature monitoring system that alerts you if the temperature in your home drops below a certain threshold. This can help you address issues before they become severe.

By taking these precautions, Ontario homeowners can significantly reduce the risk of frozen pipes and water damage during the winter months. Regular maintenance and awareness are key to preventing plumbing issues in cold climates.

Does Ontario Home Insurance Cover Damage From Frozen or Burst Pipes?

Ontario home insurance policies typically cover damage resulting from frozen and burst pipes, provided two conditions are met. Firstly, the damage must occur due to an unexpected breakage in a heated part of the house. Secondly, if the homeowner is away from their residence for an extended period during what is considered the usual heating season, they must either arrange for daily checks to ensure heating is maintained or shut off the main water supply and drain the pipes. It's worth noting that the definition of the usual heating season varies across Canada, and each insurance provider sets the specific number of days a homeowner can be away before taking action. 

Additionally, standard home insurance policies will cover damage from frozen pipes within the heated portion of the home, as long as reasonable steps are taken to maintain heat. However, if a furnace or heat pump malfunctions and leads to frozen pipes, home insurance covers the resulting damage but not the repair cost for the furnace or heat pump, which is often considered a maintenance issue.

As we've explored, the impact of frozen and burst pipes in Ontario's harsh winters can be significant and costly. However, with the right knowledge and preparation, you can effectively safeguard your home and peace of mind. Don't let the cold catch you off guard. Act now to protect your home from the chilling effects of winter:

Stay vigilant, address issues promptly, and ensure your Ontario home insurance is tailored to protect you from the unpredictable nature of water-related incidents. Your home is your sanctuary, and by staying informed, you can keep it safe and secure for years to come.

Contact your Ontario insurance broker to learn more about water coverage options that you can apply to your home insurance water coverage.

>> Speak with A Youngs Insurance Broker Today! 

Click here for a quick home quote »

Disclaimer: The information provided on this blog is for educational purposes only and is not intended as professional insurance advice. The coverage, terms, and conditions of each insurance policy are unique and subject to individual circumstances. The information provided does not guarantee the availability or suitability of any insurance policy for your specific needs. You should not rely on the information in the blog as an alternative to professional advice from your insurance broker or insurance company. If you have any specific questions about any insurance matter, please consult a licensed insurance broker for personalized advice and guidance.

We Customize Every Insurance Quote Specific to Your Needs