Preserving the integrity and safety of your home is essential for every homeowner, but they tend to often overlook parts such as the chimney. This is a mistake since it’s crucial for any homeowner to know when there is a chimney leak that needs to be immediately addressed.
In 2025, homeowners must stay informed about repairs they can utilize to prevent chimney leaks. To help, this blog post will discuss 7 key fixes to help keep your home safe and functional.
Also Read: Thinking About Chimney Removal? Here Are 5 Things You Need to Know
How Do You Fix A Leaking Chimney In 2025?
Don’t know how to seal a chimney? Here are 7 different types of chimney leaks and the way to fix them in 2025:
#1. Repoint the Chimney
Over time, exposure to harsh weather can cause the mortar between bricks to crack and crumble, creating gaps that allow water to seep in. This moisture buildup can lead to mold growth, deteriorate brickwork, and compromise the chimney’s structure, resulting in expensive repairs. If left unaddressed, leaks around the chimney could become worse over time.
Solution
Repointing involves carefully removing the damaged mortar and replacing it with fresh mortar. This process restores the chimney’s strength and seals any gaps, preventing more water from getting through. By reinforcing the bond between bricks, repointing helps fix a chimney leak and extend the chimney’s lifespan.
#2. Replace or Repair Faulty Flashing
Flashing is a critical barrier that prevents water from seeping between the chimney and the roof. If it becomes damaged, corroded, or installed wrong, water can easily enter the building, leading to chimney leaks in heavy rain, ceiling stains, wood rot, and structural deterioration. The longer the issue goes unaddressed, the more extensive the damage becomes.
Solution
A thorough inspection can help determine whether the flashing needs resealing or a full replacement. If necessary, new metal flashing should be installed securely around the chimney to ensure a watertight seal. When it’s properly installed, it directs water away from vulnerable areas, protecting both the chimney and the roof from leaks.
#3. Fixing and Sealing Deteriorated Chimney Crowns
The chimney crown is designed to shield the top of the chimney from rain and debris. However, when cracks form or the material begins to crumble, water can infiltrate the flue and seep into the masonry below. Over time, this moisture weakens the structure, leading to chimney leak issues and expensive repairs.
Solution
A deteriorated crown should be cleaned and assessed for damage before applying a new layer of concrete or a high-moisture-resistant sealant. This repair not only fills existing cracks but also reinforces the crown’s ability to divert water away, preventing future chimney leaks.
#4. Installing or Repairing Chimney Caps
Chimney caps play a crucial role in preventing water, snow, and debris from entering the flue. When missing or damaged, they leave the chimney exposed to moisture, leading to chimney leaks, flue liner deterioration, and potential blockages from debris or animals.
Solution
To prevent leaks, a new cap should be installed using durable materials such as stainless steel or copper. If an existing cap is damaged, repairing or replacing it ensures proper ventilation while keeping rainwater and debris out, protecting the chimney and surrounding structures from leaking chimney problems.
#5. Repairing Cracked Masonry
Cracked bricks and mortar joints provide direct entry points for water. With repeated exposure to rain and freezing temperatures, these cracks can widen, allowing moisture to seep deep into the chimney. Over time, this leads to leaks at the chimney, further damaging the masonry, and weakening the structure.
Solution
Identifying and repairing cracks early is essential. The damaged areas should be cleaned before applying a masonry repair compound or epoxy filler designed for brickwork. These materials restore the chimney’s integrity while sealing off moisture pathways to prevent future chimney leaks.
#6. Waterproofing the Chimney
Without proper waterproofing, chimneys absorb water through porous bricks and mortar. Over time, this moisture buildup leads to mold growth, structural deterioration, and an increased risk of the chimney leaking water. A lack of protective treatment leaves the chimney vulnerable to continuous water damage.
Solution
Applying a high-quality, breathable waterproof sealant protects the chimney by repelling moisture while allowing trapped vapors to escape. This treatment helps prevent chimney leak repair needs, preserves the integrity of the brickwork, and extends the chimney’s lifespan.
#7. Relining or Sealing Flues
Flue liners protect the chimney’s interior from heat, smoke, and moisture. However, when they crack or deteriorate, they allow water to seep into the surrounding masonry, leading to chimney leaks and potential structural damage. Additionally, moisture intrusion can corrode metal components, worsening the problem over time.
Solution
Installing a new liner using materials like stainless steel or ceramic tiles restores the chimney’s function while sealing off moisture pathways. In some cases, specialized sealants can be applied to existing liners to create a protective barrier against water infiltration, preventing a need for more repairs in the future.
How Much Does A Leaking Chimney Repair Cost?
Fixing a leaking chimney in Tulsa, Oklahoma, usually costs between $150 and $350 for minor repairs like sealing cracks or fixing flashing. If the damage is more severe, costs can get much higher, ranging anywhere from $160 to $15,000, depending on the extent of the repairs.
To get an accurate estimate, it’s best to have a local roofing contractor inspect the chimney and assess the damage.
Does Homeowners Insurance Cover Chimney Leaks?
Homeowners insurance may cover a chimney leak if it’s caused by sudden events like storms or falling debris. However, damage from wear and tear, poor maintenance, or aging materials is usually not covered.
To qualify for a claim, you’ll need to show that the leak was unexpected and not due to neglect.
Who To Call For A Chimney Leak
If you have a chimney leak, it’s best to call a chimney repair expert who can find the source and fix the issue. Repairs may include sealing cracks, fixing flashing, or adding waterproofing. A roofing contractor with expertise in chimney repair can also help, especially if the chimney leak is caused by a feature on the roof.
Get Expert Chimney & Roof Repair by A. Fricker Roofing & Waterproofing!
Protect your home from the weather with the team at A. Fricker Roofing & Waterproofing. Our experts provide high-quality, complete roofing services to keep your home dry and secure all year.
Whether you need roof repairs, replacements, chimney repairs, or waterproofing, we deliver quality work and reliable results. Don’t let leaks or damage put your home at risk — trust our team for expert roofing services and enjoy peace of mind knowing your home is well protected. Call us at (918) 402-7167 today, to learn more about how we can help you.
