The Dangers Of A Chimney Leak

Did you know a chimney leak can cause serious problems for homeowners? As with all leaking water, the moisture caused by a chimney leak will cause mold, which can cause an array of different health hazards to you and your family. If left untreated the cost of mold removal can get pricey with repairs costing upwards of $6,000 in some cases. 

Not only can a leaking chimney cause black mold, water leaks can also cause physical damage ranging from cosmetic to extensive deterioration to the structure of your home. Water damage can ruin your home faster than some may think. Did you know within 24 hours water exposure to your roof, ceiling and walls can cause irreversible damage to the structural integrity of your home. Getting leaks repaired quickly is the only way to prevent your leaky chimney from damaging your home.



Black Mold

The Environmental Protection Agency warns that Black Mold can be harmful to your health. If a leak in your Chimney allows moisture to enter your home, and if that moisture encounters porous surfaces, especially wood, it can trigger the growth of mold. Though some mold is more unsightly than dangerous, black mold can be a real problem to the health of you and your loved ones.

• Asthma

• Headaches

• Irritated Sinuses

• Chronic Fatigue

• Depression

Dangers Of Black Mold


If you have a mold allergy and asthma, your asthma symptoms can be triggered by exposure to mold spores. In some people, exposure to certain molds can cause a severe asthma attack. Signs and symptoms of asthma include:

  • Coughing
  • Wheezing
  • Shortness of breath
  • Chest tightness


Black mold exposure can cause headaches if you are allergic to mold, and that results in sinus inflammation or nasal allergies. Chronic congestion of the sinuses and nasal allergies can cause headaches very easily.

Irritated Sinuses:

In the event mold fungus finds its way into the sinus cavity, the immunity in the body reacts by releasing a chemical known as eosinophils to fight the fungi. This substance is what causes fungal sinusitis and will cause irritation for as long as the fungi are within the sinus.

Chronic Fatigue:

The most common symptom of toxic mold is fatigue. Chronic fatigue is something many people complain about when they’ve been exposed to household mold for a long period of time. While respiratory symptoms are often rapidly attributed to mold, people are not so quick to attribute fatigue to the presence of mold in the home. They may not realize that exposure to mold can cause fatigue or they may simply assume the fatigue is due to something like, like a busy schedule or just not getting enough sleep.


A groundbreaking public health study has found a connection between damp, moldy homes and depression. Residents who live in visibly damp, moldy households risk for depression averaged 34–44% higher than that for residents of mold-free dwellings.

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Rotting Wood

As excessive moisture builds up in wood it can begin to rot. When an entire wall, roof or ceiling has been affected, the repairs can be extensive and expensive.

Roof Damage:

Water seeps in between the metal flashing that the chimney and travels to the wood roof decking.  Water damages the roof decking and can lead to needing to replace your roof.  Getting leaks repaired quickly is the only way to prevent your leaky chimney from damaging your roof damage. Check out our roof leak resolutions


Ceiling And Wall Damage:

When water enters the home from a chimney leak It may run down a rafter to puddle above the ceiling. When water puddles above your ceiling it can cause wood and plaster to lose their structure and sag as well as wall paper and paint to come off walls leading to extensive damage and repairs.  schedule an appointment for a free estimate


Causes of a Chimney Leak

Damaged or Missing Chimney Cap:

A damaged or missing chimney cap can’t keep out the elements caused by bad weather such as rain, snow and even moist debris from entering your chimney. Chimney caps are used to prevent rain and snow from deteriorating the inside of your chimney. Stainless steel mesh within the cap helps as a spark arrestor, and minimizes burning debris from rising out of the chimney. Chimney caps can be stainless steel, copper, Kydex colored steel and more. Ageless Chimney stocks all traditional caps on our trucks, and can also provide custom caps in any shape and size. read more About Chimney Caps Chase Covers

Cracked Cement Crown:

Cracks in the chimney crown allow water to leak into the flue lining causing damage to your liner. A chimney lining system is intended for use with all traditional home heating appliances that use oil, gas or wood, and vent through a masonry chimney. A chimney liner is a stainless steel tube used to bypass traditional masonry chimneys that may be old, damaged or need to be brought up to code. Chimney liners are recommended for all unlined masonry chimneys, and chimneys with any cracked or damaged terracotta clay flues. Ageless Chimney liners are stainless steel, crush proof, and come with a lifetime warranty.

Degraded Chimney Bricks:

Seasonal freezes and thaws eventually degrade porous bricks and result in slow seepage. The frozen water inside the brick expands slightly and the brick begins to crack. The bricks freeze and thaw repeatedly, continuing the process until the front of the brick begins to flake off resulting in a leaking chimney. A damp chimney will stain the ceiling and the chimney opening, as well as walls around the fireplace. This is caused due to a number of factors that trap moisture, mainly, porous clay bricks, unvented flue and rainwater

Deteriorated Chimney Mortar Joints:

Older mortar joints deteriorate and allow moisture to leak into the structure. A common repair for deteriorated mortar joints is called repointing. In this process, the existing mortar joint is cut to an appropriate depth and the joint is repacked with new mortar. The joint is then cut to form a concave surface that will direct water out of the joint. We repair all types of masonry related chimney problems, and are highly specialized in loose bricks, mortar repair, leaky chimneys, rebuilds, repointing and matching new brick to old. read more About Masonry Brick

Damaged Metal Flashing:

Damaged chimney flashing can’t hold a waterproof seal between the chimney and roof. If your flashing is warped or flared, it may be damaged or worn out beyond repair. Without flashing, or when flashing is damaged or deteriorating, the risk of leaks increases greatly. Leaks can have a cascading effect on homes, causing large amounts of damage well beyond the roof. If a leak is not noticed and fixed immediately, a home can experience water damage leading to expensive and extensive repairs.

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Chimney Saver

Crown Coat by ChimneySaver: Ageless Chimney’s choice of water repellent for waterproofing a chimney from moisture. Benefits of using ChimneySaver products to waterproof the masonry of the chimney include protection of freeze and thaw cycles, a matte finishing, and protection from stains. When ChimneySaver products are applied by professionals, such as Ageless Chimney, there is a ten year warranty that can be registered for.

To learn more about ChimneySaver products, visit their website.


What Our Clients Say

Below are testimonies from our great clients regarding our chimney leak resolution services.

“I had a minor roof leak around the chimney. I called Ageless Chimney to give me an estimate for resealing the flashing, repairing the brick mortar joints, and closing off the chimney. The receptionist set up an appointment for me. Ron was here on time, gave me a fair estimate. I decided to go with them. Ron and the crew came back a few days later to finish the job. They are professional, and the price is fair. Highly recommended.” – Andy from Long Island, NY

“Bobby and Sherwood came to our house in Massapequa after my wife and I had been dealing with a leaking chimney for weeks. After providing us with a reasonable estimate they performed the work the following day and our chimney has not had a leak since through several storms. Would definitely recommend them to family and friends.” – Joseph from Long Island, NY

“The most professional place – from the people who answered the phone, to the people who did the job. EVERYTHING was flawless. I couldn't say a bad thing about them. The work preformed was beautiful, and it exceeded my expectations. They even finished a day early!” – Barbara from Long Island, NY

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Call Ageless Chimney to Schedule your Chimney Leak Resolution today! 

Leak resolution includes checking all cracks, gaps, holes or masonry despair to find the issue. Once the issue is found, the appropriate repairs will be made to protect the longevity of the chimney and guarantee the leak is resolved. A leaking chimney can cause many problems for homeowners. Don’t let one of your home’s favorite features put you and your loved ones in danger!

For thorough, reliable, and affordable fireplace cleaning and repair you can rely on, contact the fireplace experts at Ageless Chimney! To receive a free estimate and schedule an appointment, complete our online request form or give us a call directly at 516-795-1313 and one of our knowledgeable and friendly associates will be happy to assist you. For more info check out our website today.