Chimneys add charm and functionality to a home, but they’re also one of the most common sources of roof leaks. Because chimneys intersect with roofing materials, they require careful sealing to prevent water intrusion. For homeowners in Keller, TX, where heavy rains and hailstorms are frequent, addressing chimney leaks quickly is essential to protect both the roof and the interior of the home.
At KangaRoof, we specialize in diagnosing and repairing leaks around chimneys. With certifications including OC Preferred, Emerald Premium Plus, and GAF Master Elite, we bring industry-leading expertise to every project. We proudly use products from trusted brands like Malarkey, GAF, and OC, ensuring our repairs are durable and long-lasting. Our mission is clear: to provide the finest roofing craftsmanship while living out our values—doing the right thing with quality and passion.
Why Chimneys Are Vulnerable to Leaks
Flashing Issues
Flashing, the metal installed where the chimney meets the roof, is the most common culprit. Over time, flashing can rust, loosen, or crack, allowing water to seep in.
Cracked Mortar or Bricks
Weather and age can cause mortar joints or bricks in chimneys to crack. Even small gaps allow water intrusion, especially during heavy rain.
Poor Sealant Application
Sealants used around chimneys eventually dry out and deteriorate, losing their ability to block water effectively.
Design and Installation Flaws
Improperly installed chimneys or flashing systems often fail to divert water away, leading to leaks.
Signs of a Chimney Leak
- Water stains on ceilings or walls near the chimney
- Musty odors in the attic or living spaces
- Damp or crumbling mortar around the chimney
- Visible rust or deterioration on flashing
- Peeling paint or wallpaper near chimney walls
Steps to Fix Roof Leaks Around Chimneys
Step 1: Inspection
A thorough inspection identifies whether the issue is with flashing, masonry, or sealants. Professional roofers can distinguish between cosmetic and structural problems.
Step 2: Replace or Repair Flashing
If flashing is damaged, it should be repaired or replaced with properly fitted metal pieces to create a watertight barrier. Step flashing and counterflashing are especially important for long-term durability.
Step 3: Reseal Cracks and Gaps
Cracked mortar or deteriorating bricks should be repaired, and high-quality sealant applied to restore the chimney’s integrity.
Step 4: Waterproofing
Applying a breathable waterproofing treatment to the chimney exterior helps prevent moisture absorption while allowing trapped vapor to escape.
Step 5: Professional Follow-Up
Since chimney leaks can be complex, professional roofing contractors provide the best long-term solutions, ensuring all potential vulnerabilities are addressed.
Preventing Future Chimney Leaks
- Schedule annual roof inspections to identify early warning signs.
- Keep gutters clean to prevent water from pooling near the chimney.
- Trim back tree branches that may damage flashing or roofing materials.
- Use only certified professionals for chimney and flashing installation.
Why Keller, TX Homes Require Extra Vigilance
With Keller’s mix of hail, wind, and heavy rains, chimneys often endure harsh conditions. Proactive care and professional maintenance are key to keeping leaks from spreading and causing interior damage.
Conclusion
Fixing roof leaks around chimneys requires a combination of expert inspection, proper flashing installation, and long-term preventive measures. For Keller homeowners, addressing chimney leaks promptly not only protects the roof but also preserves the home’s structure and interior comfort. Partnering with certified professionals ensures the repair is thorough and lasting.
Read also our blog: Roof Leaks During Heavy Rain: What to Do