The short answer
Why Pipes Burst
Pipes burst when water inside them freezes and expands, creating pressure that can crack the pipe. This often happens in unheated areas like attics, garages, or crawl spaces. Even a small crack can release a large amount of water quickly.
In many areas with a mild marine climate, freezing is less common, but it can still occur during cold spells. Keeping your home at a consistent temperature, even when away, helps prevent freezing. If you plan to be away, set your thermostat to at least 55 degrees Fahrenheit.
Insulate and Seal
Insulating exposed pipes is one of the most effective steps. Use foam pipe insulation or heat tape on pipes in unheated spaces. Seal any gaps or cracks in walls and floors where cold air can reach pipes.
Pay special attention to pipes near exterior walls. Even in a mild climate, a sudden drop in temperature can catch you off guard. Keep your shutoff valve location written down and make sure every adult in your home knows where it is.
- Wrap pipes with foam insulation or heat tape
- Seal gaps around pipes with caulk or spray foam
- Open cabinet doors under sinks to let warm air circulate
- Let faucets drip slightly during freezing temperatures
- Keep garage doors closed to protect pipes in that space
- Disconnect outdoor hoses and drain outdoor lines before winter
Monitor and Maintain
Regularly check your pipes for signs of wear, such as rust, corrosion, or small leaks. A small drip can indicate a weak spot that might burst under pressure. Replace worn washers or fittings as needed.
Consider installing a water leak detection system. These devices can alert you to leaks early, giving you time to shut off the water before major damage occurs. Some systems can automatically shut off the water supply. This is a practical step for any homeowner.
If a Pipe Bursts
If a pipe bursts, your first step is to shut off the main water valve. This stops the flow and limits damage. Then, turn off the electricity in the affected area if it is safe to do so, because water and electricity are a dangerous mix.
Call the pros to handle the cleanup. They have the equipment to extract water and dry out your home, which helps prevent mold. They can also inspect for hidden moisture. Acting quickly reduces the chance of long-term issues.
Policies vary, and your insurer decides what is covered. Check your policy to see if you have coverage for water damage from burst pipes.
- Shut off the main water valve immediately
- Turn off electricity in affected areas for safety
- Remove valuable items from the flooded area
- Document the damage with photos for your records
- Contact your insurance company to ask about coverage
- Call the pros for cleanup and drying
Long-Term Prevention
For long-term prevention, consider upgrading to more durable pipe materials, such as PEX or copper, which are less likely to burst than older materials. If you have an older home, have a plumber inspect your pipes for weak spots.
In very cold regions, some homeowners install pipe heating cables. These are not necessary in a mild climate, but they can be an option if you have vulnerable pipes. Regular maintenance and attention to your plumbing system are your right defenses.
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Call Now (425) 407-5186Frequently asked questions
What temperature should I keep my home to prevent pipes from freezing?
Set your thermostat to at least 55 degrees Fahrenheit, even when you are away. This keeps the interior warm enough to prevent most pipes from freezing, especially those inside walls and cabinets.
How do I know if my pipes are at risk?
Pipes in unheated areas like attics, garages, or crawl spaces are most at risk. Also, pipes along exterior walls or in cabinets that are closed off from warm air can freeze. Check for drafts and cold spots near your pipes.
What should I do if a pipe bursts and water is everywhere?
Shut off the main water valve right away. Then turn off electricity in the affected area if safe. Remove items that can be saved, and call the pros to extract water and dry the space. Document the damage for your insurance company.