PVC pipes are one of the most common types of plumbing materials used across homes in Canada, including those in places like Barrhaven. Known for being lightweight and easy to install, these pipes play a big part in keeping everything flowing smoothly behind the walls and beneath the floors. However, as reliable as they are, they aren’t completely immune to wear and tear.
When PVC pipes crack or split, it can lead to frustrating plumbing issues like leaks and low water pressure. If left alone, even a small split can grow into a big problem. That’s why understanding what causes this kind of damage is so important. Once you know what to watch out for, it gets easier to protect your plumbing from future trouble.
Causes Of PVC Pipes Cracking And Splitting
Several things can cause PVC pipes to crack, and most of them have to do with their environment or how they were installed.
One of the biggest troublemakers is temperature. While PVC is great for many homes, it doesn’t handle extreme cold or heat very well. In the winter, water left sitting in exposed pipes can freeze and expand, pushing out on the pipe walls. When the ice melts again, the pipe might not go back to its original shape, which can leave hairline fractures. On the flip side, extreme heat can also put stress on the plastic, especially if the pipe isn’t buried deep enough or is exposed to the sun.
Direct sunlight is another problem. Imagine a white PVC pipe running across the roof of a shed or near a sunny window. Over time, that constant UV exposure can break down the material. It gets brittle and starts to lose its flexibility. Once that happens, even small fluctuations in pressure can cause it to crack.
Physical strain is often overlooked but can be just as damaging. If a pipe is stretched, bent too hard, or pinched during installation, tiny stress points can develop. These weak spots may not show problems right away, but give it a few months of water flowing through, and a split could show up. Pipes that are not properly supported may also sag, especially in long horizontal runs, which creates extra weight on certain spots.
Here’s a quick list of causes that commonly lead to cracked or split PVC pipes:
– Freezing temperatures causing the water inside pipes to expand
– Constant exposure to direct sunlight weakening the plastic
– Heavy bending or force during installation
– Vibrations from nearby equipment or water hammer effects
– Lack of proper support, leading to pipe sagging over time
By keeping these causes in mind, homeowners can start to make choices that reduce the risks of future pipe problems, especially when it comes to installation and protection.
Common Signs Of Cracked Or Split PVC Pipes
Cracks and splits don’t always show themselves right away. In fact, some of the earliest signs are easy to overlook. But knowing what to watch for can save you from bigger headaches later.
Water leaking from a pipe is the most obvious sign. You might spot a puddle under the sink or damp drywall that suddenly shows up for no reason. In basements, this may appear as dark patches along a wall or floor. You may hear a hissing sound too, which could point to pressurised water leaking out through a tiny crack.
Another clue is a change in water pressure. If you notice water taking longer to fill the tub or less flow through the showerhead, it could be due to a damaged pipe letting water out before it gets to the tap. In some cases, you might even catch a faint sewer smell or see mildew starting to grow faster than usual, both of which could point to moisture issues tied to cracked pipes.
You can also check the physical state of the visible pipes if you’re comfortable doing so. Small bulges, hairline cracks, or discoloured plastic could mean the pipe is on its way to failing. If your pipes are in the garage or outside, look for signs of sun damage too, like faded colour or peeling.
These signs may seem small, but catching them early makes a big difference when it comes to limiting home damage from water leaks. Responding quickly can help avoid expensive repairs or damage to walls and flooring.
Prevention And Maintenance
Taking a few smart steps can help stop the most common causes of cracked PVC pipes before they happen. While no system is perfect, adding a few precautions into your regular upkeep can extend the life of your plumbing and lower the risk of sudden repairs.
Insulating exposed pipes is one of the best ways to protect against freezing, especially around the edges of your home or in unheated basements. In Barrhaven, where winter nights often dip well below zero, those freezing conditions can creep in quickly. Foam pipe sleeves are easy to apply and help maintain a safer temperature inside the pipe, even when the outdoor temp falls hard.
Another tip is to keep an eye on pipes that are exposed to sunlight. If you have PVC pipes outside, around the side of a garden shed or running along fences, try covering them with pipe wraps or running them through conduit. That extra layer blocks UV rays and keeps the plastic from breaking down. If moving the pipes isn’t an option, installing a simple cover or shade can make a noticeable difference.
Proper installation is just as important. Support brackets should be spaced evenly to prevent sagging, and joints must be secure to avoid extra strain. If you’re changing anything in your plumbing setup, it’s better to check how new pieces will affect old sections. Any twisting or bending during modifications can send stress ripples down the line.
Here’s a good checklist to follow:
– Use foam insulation on all exposed indoor pipes
– Wrap or shade outdoor PVC pipes to block direct sunlight
– Check that pipes are supported with hangers or straps every few feet
– Keep joints snug but don’t overtighten when connecting fittings
– Get regular inspections to catch small issues before they grow
Staying on top of these details doesn’t take much time, but it can save you from major pipe repairs later, especially in older homes where there’s a mix of pipe materials.
Dealing With Cracked Or Split PVC Pipes
Even with the best care, PVC pipes can still break. Whether it’s weather, age, or stress, splits can sneak up on you. So, what should you do when something seems off?
Start by turning off the water supply if you suspect a crack. That helps stop more damage until someone can take a look. If the pipe is visible and you’ve caught it early, you might see where the issue is. Keep the area clear from storage boxes or cleaning supplies so it’s easier to access for a repair.
After that, it’s time to call a plumber experienced with pipe repair in Barrhaven. They’ll know how to assess the damage properly. Sometimes the solution is a simple section replacement. Other times, the issue might go deeper, like poor installation or temperature exposure from years past. A trained technician will know whether the pipe just needs patching or a full replacement to stop it from leaking again next season.
It’s also a good moment to ask about the condition of the other plumbing lines in the home. If one PVC pipe is cracked, there could be others right behind it showing early warning signs. It’s better to deal with them all at once than wait for another break to appear.
Choosing professional repair isn’t just about fixing the crack. It’s about finding the cause so it doesn’t come back and making sure your plumbing can handle the seasons ahead.
Keeping Your Plumbing System in Top Shape
PVC pipes are a common part of many homes in Barrhaven, but even reliable materials like PVC can wear out under pressure. Cracking or splitting can be frustrating, especially when you’re not sure what caused it or how long it’s been going on. That’s why learning the warning signs helps you step in early before small issues start eating into your walls or flooring.
With a bit of prevention and a close eye on the most exposed parts of your plumbing, you can avoid sudden pipe bursts or leaks. And when damage does happen, fast, expert help makes all the difference. Fixing one pipe the right way can keep the rest of your system running better for the long haul.
If your home’s PVC pipes are showing signs of wear, getting ahead of the issue can save you from more costly damage down the line. For expert help you can count on, trust The Irish Plumber for reliable pipe repair in Barrhaven. We’ll make sure your plumbing stays strong through every season.

