When you have a chimney leak, your home is at risk every time it rains. And the results of a leaky chimney can be frustrating, costly, and even hazardous to your health:
- Rust streaks
- Water damaged walls and ceilings
- Corroded chimney caps, chase tops, and flue liners
- Cracked fireboxes and crowns
- Cracked mortar joints and crumbling brick
- Wood rot in attics
- Musty odors
- Mildew
Chimney repair and restoration maintains the structural integrity and safety of a chimney. Over time, chimneys can suffer from various issues such as cracks, leaks, deteriorating mortar, or damaged bricks due to exposure to weather elements or age. Professional chimney repair services address these problems by repairing or replacing damaged components, restoring the chimney to its original condition. Restoration may involve tasks like repointing mortar joints, replacing bricks, installing a new chimney cap or crown, or repairing the chimney liner. Timely repair and restoration not only ensure the safety of the chimney but also help to preserve the aesthetics and value of the property.
But whether the leak is new or advanced and you’ve already spotted damage, we can help.
We’ve been working hard to prevent and stop chimney leaks in Vancouver and the Lower Mainland for a while now, and we’re proud of our track record. From minor leaks to major leaks, we have the equipment, experience, and diagnostic tools and techniques to find the cause fast and make repairs that last.
What Makes A Chimney Leak?
The key to fixing a leaky chimney is figuring out what’s causing it to leak in the first place. Most often, a leaky chimney can be traced to the crown, the flashing, the chimney cap, the chase top, or the masonry. When damage occurs in these areas, water gets in and causes big problems.
We Seal & Rebuild Chimney Crowns & Stop Leaks Fast!
When we’re called about a leaky chimney, one of the very first things we do is get up on the roof and look at the chimney crown. That’s because, in our decades of experience, we’ve learned that the chimney crown is often to blame. This cement covering that lays over the top of the chimney is what keeps rainwater, sleet, and snow from coming down into the chimney top. But when it doesn’t stop the water, there’s a problem.
Why Do Chimney Crowns Leak?
If your chimney crown is leaky, chances are it’s because of one of these things: The chimney crown has deteriorated or developed cracks. The chimney crown wasn’t constructed the right way when it was installed. Let’s talk about each of these issues and how they become such a problem…
First off, there’s the possibility that the crown has deteriorated or developed cracks and is now letting water into the chimney. How does this happen? Well, it can happen as a result of this killer combo: moisture + temperature changes. Moisture from rainwater, sleet, or snow gets absorbed bit by bit into the crown — possibly through hairline cracks or just because the material used to build the crown is naturally porous. But the trouble comes when temperature fluctuations are introduced.
This process is known as the freeze/thaw process, and the movement that the moisture creates inside the crown can cause a lot of damage — including bigger cracks and fractures. Which means even more ways for water to get in and cause damage in the future. Another cause of crown cracks and deterioration is age. The wear and tear that comes with storms and house settling over time can eventually cause small cracks to get bigger, and crowns to crumble and deteriorate.
And the final most common cause of leaky chimney crowns is bad construction. Specifications for proper crowns include a thickness of at least a few inches at their thinnest point, a drip edge that extends beyond the chimney chase, and a slightly downward angle on each side of the crown. If built properly and well maintained, a chimney crown shouldn’t leak. But if it was poured too thin, built flat, or made without a drip edge, leaks are pretty much inevitable.