01 Aug 2021

The Dangers of a Chimney Leak

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

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

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

Check out some more of our customer reviews on Yelp and Google



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 www.agelesschimney.com today.

04 Jun 2021
chimney flashing repair by owner at ageless chimney in new york long island

Chimney Flashing Repair Process

The chimney flashing repair is not referring to a decorative lighting piece to place on your chimney. Chimney flashing is a key component to add to your chimney that prevents leaks and water damage. Chimney flashing repair is very common for chimneys. Ageless Chimney has an expert team that has been servicing this part of the chimney for over 15 years. 

Many homeowners are unaware of the many benefits chimney flashing has to offer. Located on the bottom of the masonry of the chimney and between the roofing, flashing is intended to create a waterproof seal to prevent water damage. Continue reading to learn more!


What is Chimney Flashing?

Chimney flashing is a sheet of material (steel, pvc, copper, or aluminum) installed around the area where the chimney meets the roof. The flashing ensures that the connection between the chimney and roof is watertight. Though flashings last for some time, they do have to be replaced after extreme wear.


Types of Chimney Flashing 

There are several types of chimney flashing. Each type is chosen due to the project specifications including size of area, shape of chimney, weather conditions, and other location elements that can affect the longevity of the flashing.


chimney flashing in copper completed by ageless chimney in long island new york
Copper Flashing

Aluminum Flashing 

This flashing option is an inexpensive choice. Aluminum flashing can be installed to any type of roof to ensure protection to the chimney. The downfall of aluminum flashing is that it is subject to corrosion. 

Copper Flashing

A lightweight, crack resistant material that is perfect for extreme weather (like storms and hurricanes) and high temperature locations. Installed with a specific copper sealant, this material has an extra barrier that reinforces the waterproofing function. This material should always be installed by professionals due to the special sealant step.



Vinyl and PVC Flashing

This material can break easily in extreme weather (like storms and hurricanes) due to its lightweight nature. This being said, it is not recommended for locations that undergo these conditions. These reasons are why vinyl and PVC flashing is not commonly used on chimneys. 

Steel and Galvanized Flashing 

A very durable material, steel does not easily corrode. The installation process for steel flashing takes a longer time due to its heavy weight. 


Chimney Flashing Techniques

Two techniques to install chimney flashing include step and counter flashing. Both techniques include layers of flashing material to ensure prevention of water damage. 


Step Flashing 

Protecting the seam of the chimney and roof, step flashing is installed by placing L shaped materials into the roof shingles. This technique is most effective when installed by a professional. 


Counter Flashing

This installation is to cover the step flashing also using L shaped pieces of material. The flashing is then embedded into the masonry of the chimney, to create a seamless transition for prevention of water damage. Similar to step flashing, this installation is also most effective when installed by professional chimney technicians. 


Signs It Is Time To Replace Your Chimney Flashing

As chimney flashing is to prevent water damage to your chimney and home, it is very important to know the lifespan of the material chosen. Chimney flashing can last up to 30 years and is dependent on weather elements and location. Chimney flashing leaks can occur at any time of the year. Homeowners should be on the lookout for common signs of water damage in order to maintain their chimney structure. Below are some signs that indicate it is time to have a chimney flashing repair.


Firebox condensation 

Water leaking into the firebox 

Visual signs and noises of water leaking

Strange odors from your chimney


While the above causes are a result of damaged chimney flashing, there may also be another reason. Chimney caps, crowns, and damaged masonry are other reasons for water leaking problems. This can be determined with the help of chimney professionals during inspections and services. The Chimney Safety Institute of America also outlines more ways water affects the masonry of your chimney on their website.


How To Replace a Chimney Flashing

Below are the steps Ageless Chimney technicians take when replacing chimney flashing in Long Island. For the most effective installation, it is always best for professionals to service and maintain your chimney. 

  1. Remove all roofing, tar, and old flashing that is attached to the chimney.
  2. A rubber membrane is then installed over the sheathing and curled up the chimney to create the bottom layer of protection.
  3. Next, roofing and step flashing is installed to create a solid connection at the roof chimney line. This prevents water from penetrating the roof around the chimney. The new roofing is blended into the existing roofing.
  4. The most important step! Ageless will then cut the brick so the counter flashing will have a permanent connection into the chimney bricks. This counter flashing can be done in copper, brown or white colors. 
  5. Finally, clean up all of the materials, debris, and tools used to leave your home spotless and in good function. 
chimney flashing repair in process removing old flashing and tar in long island by agless chimney new york
Old Flashing
chimney flashing repair process in long island new york by ageless chimney
During Replacement
chimney flashing copper in long island new york by ageless chimney
Finished Flashing

How To Protect Your Chimney Against Water Damage

Water damage can occur due to many reasons. In short, the simple answer is to have chimney flashing installed on your chimney. Other actions that can be taken to prevent water damage on your chimney include waterproofing, installing chimney caps, and repairing masonry and mortar joints. All of these steps have been recommended by the CSIA in order to keep the chimney of your home code complaint. 


Recent Weather Events

Although extreme storms do not occur too often in New York as they do in other parts of the country, the extreme weather leads to extreme home damage. After these events, damage can occur to the chimney, leading to chimney flashing repairs becoming very common. Major storms that have affected homes across Long Island are Jose (2017), Sandy (2012), Irene (2011), and Allison (2001). Homes today are still under construction, to be rebuilt from the disastrous storm Sandy. Hundreds of thousands of homes were destroyed and affected by extreme weather events. 


Many companies were working overtime to rebuild homes across Long Island and New York City for families. If chimneys were not completely damaged by these super storms, other effects occurred. Chimney water leaks were a major result of storms, leading to non functioning chimney structures. It is very important to the function of your chimney that it is inspected after storms like this, and the recommended annual time. Catch chimney damage before it effects all components.


 What Our Clients Say

Below are some five star testimonies from our amazing clients regarding chimney flashing repair and maintenance. 


“I had called Ageless Chimney because we had a leak into our attic from the chimney. We were unsure if the roof or chimney flashing was the problem. They set me up with an appointment for a one hour window and confirmed it the day before. The guys got here on time. Charlie was professional and gave us a reasonable estimate and told us what the problem was. He was able to fix it right then and there! It stopped our leak! Thanks guys!” – Gina C. from Nanuet, NY
There is no more knowledgeable individual than Ron at Ageless Chimney. He is able to troubleshoot issues and propose solutions that will work at the best value for the customer. In Ron and Ageless we trust, so should you!  He’s the Chimney Whisperer! I am not kidding! This guy and company are the best!” – Frank A. from Long Island, NY
“Just had Ageless (Nick and Brian) come and install a new chimney liner and chimney cap, and rebuild flashing. Super personable, friendly and very helpful in explaining the process and giving suggestions for the future, as well as being kind and patient with the 200 questions we posed. They were professional and respectful of my home and cleaned up meticulously. I was beyond impressed with their work, and would highly recommend them for any of your chimney needs.” – Melissa L. from Long Island, NY
If you want/need professional and top notch chimney service…these should be your guys without a doubt. Not only were they punctual and courteous but they did an amazing job updating the inside and outside of my chimney. Those of you from Levittown know that these houses have been around the block and then some. After coming by to give us an estimate on a chimney cap, they noticed that the top three rows of our chimney was coming apart. With winter coming around the corner, I didn’t want to waste any time getting the job done. These guys knew things were getting pretty busy as well and were able to fit us in that day. In a matter of two hours they completely re-did the masonry on our chimney, inserted a stainless steel liner, and installed a new flue and cap. Their attention to detail while minimizing the impact to a lazy Saturday afternoon was much appreciated by me and my wife. I recommend this family owned business to anyone needing that special attention to their chimney and home.” – Aaron V. from Levittown, NY


Chimney Flashing Repair FAQ

How long does chimney flashing last?

After proper installation from chimney professionals, chimney flashing should last about 30 years. This number is dependent on the location and weather occurrences that can affect the materials chosen. Aluminum, PVC, copper, and steel flashing all have different pros and cons to them, that in turn can also affect longevity. 


Why does my fireplace chimney have an unusual odor?

This smell can be from build up of creosote, moisture, or animals. All causes mean your chimney is due for a chimney sweep. Moisture in the chimney can be a result of the chimney cap or flashing being damaged and ready for repair. Heavy rain, snow, wind, and other extreme weather elements can affect the function of these two important chimney components. 


Why should I use a professional chimney service for my chimney flashing repair?

By hiring professionals, like our Ageless Chimney expert service, you are more likely to have a longer lasting repair. The professionals will be able to service the chimney using the correct techniques and supplies needed to prevent water damage. If the homeowner chooses to repair the chimney flashing on their own, there are several safety, tool, and time precautions that should be taken into consideration before installation. 


How do I know what chimney company to hire?

The chimney company that the homeowner chooses to hire should be licensed and insured professionals to ensure the job is completed to CSIA standards. Other factors to take into consideration include location, time, and experience. For example, Ageless Chimney is a licensed and insured company that has been in business for over 15 years. They service residential and commercial buildings in Manhattan and Long Island. The qualifications and customer experience from the growing company are great reasons to choose them to service and maintain your chimney. 


Can I reuse the old flashing when repairing? 

It is common practice to remove all old flashing from the chimney when repairing the area. As it depends on the condition of the flashing, repairs should be made with great quality and condition. It is also hard to remove old flashing to reuse it without damaging it. This is another reason why proper and affection application of chimney flashing is with new flashing material. 


Call Ageless Chimney For Your Chimney Flashing Repair! 

The experts at Ageless Chimney will explain the process for the service and answer all questions the client has. Ensure your chimney is code compliant by scheduling your annual chimney inspection and chimney sweeps with the experts at Ageless Chimney. They are skilled professionals that offer various services to ensure a well maintained chimney. 


Call Ageless Chimney as soon as you spot one of these signs for chimney flashing repair. The sooner you call, the sooner we can repair and prevent future chimney damage. We service Manhattan to Long Island and are not limited to the following services, installation, repair, and cleanings. With over 15 years of experience, call the professionals at Ageless Chimney 516.795.1313 or click here to schedule your free estimate today!