8 Signs Your Chimney Needs Repairs

Chimney repair and maintenance play an important role in keeping your family safe. Chimneys provide warmth and comfort on the coldest winter nights in the Dallas-Fort Worth Metroplex. Even so, they can also become dangerous when not properly maintained or when problems go unresolved for too long.

Potential dangers include damage to personal property, injuries, and even loss of life. The good news is that the need for chimney repair is unlikely to catch you off guard. All you need to do is watch out for the signs below. Then, contact a repair company as soon as possible if you notice something is wrong.

1. Strange Smells

One of the first tell-tale changes you might notice in your chimney is the smell. The familiar smell of firewood might become tainted with something else you find difficult to explain or might become overpowering. One potential reason for this is the growth of mold, which can develop from moisture damage in the chimney. Another potential contributing factor is the need to replace the liner. When the liner works as it should, it helps to extract fumes from the fireplace to prevent them from entering and staying in your home. People with respiratory problems might be especially affected by mold and a deteriorating liner.

2. Dislodged Bricks and Tiles

Moisture can cause damage to masonry work, which eventually weakens the bricks and the structure holding them together. If you have noticed any indications of mold, this might very well be the case. You might also notice shaling, which is the word used to describe the growing pile of flue tiles on the floor. If you notice shaling, it is important to refrain from using your chimney until you resolve the issue or a contractor gives you the green light. Flue tiles contribute to the fire resistance of your chimney liner. Subsequently, if the chimney begins to shed them, you might have a fire hazard on your hands.

3. Mortar Damage

Even though Texas is a southern state, it has its fair share of cold winters. This cold puts additional pressure on the mortar that keeps your bricks in place. The damage might not appear obvious at first, so it’s important to check regularly. Red flags include holes, gaps or cracks in the mortar. Chimneys can be dark, so be sure to get a flashlight for your inspection. If your chimney has been shedding bricks or tiles, consider a hard hat to better protect yourself. Note that failing to fix your mortar damage could cause the chimney to collapse.

4. Rusted Firebox

Most homeowners recognize that rust is a serious problem, but few recognize how serious it might become. If you notice rust on your damper or firebox, consider wearing a hard hat before further inspecting your chimney. As another sign of an excess moisture problem, you could risk flue tiles and bricks coming down. If possible, hire a contractor to check the chimney. These professionals have special equipment, such as small cameras, that can see into crevices you might not be able to reach on your own.

5. Chimney Discoloration

Known as efflorescence, the white staining on your chimney is another tell-tale sign of potential water damage. Unfortunately, many people believe that so long as they clean up this white staining, the issue goes away with it. Unfortunately, the cause of the moisture still remains. If left untreated, many of the issues already identified that are associated with moisture will soon begin to show up. This could significantly shorten the lifespan of your chimney.

6. Faulty Chimney Chase Top

When you or a professional begin your inspection of the chimney, you might notice a rusting chimney chase top. In some instances, it might even be broken. The material used might account for this. Ideally, your chase top is made from stainless steel, but many prefab chimneys come with galvanized metal covers instead that do not hold up against Dallas Fort Worth’s rainy periods. A faulty top presents a number of risks, such as animals entering the home. In 2018, one Texas many got an unwelcome surprise in the early morning when a loud clunk in his fireplace turned out to be a six-foot-long rat snake. A faulty chase top might also explain excess moisture getting in. In fact, this could explain any excessive moisture problems identified.

7. Cracked Chimney Crown

Even if you do not have a prefabricated chimney, you might still have issues with the top of the structure. The crown in a more traditional chimney can crack. To determine if this is the case, you would need to climb onto your roof to take a look. Roofing is one of the most dangerous jobs in America and a fall can be lethal, so it is generally best to leave this to the professionals. Like a faulty metal chase top, when the crown fails, it allows water into the chimney. The inevitable freeze-and-thaw cycles can then wreak havoc on the masonry work.

8. Leaning Chimney

When a chimney begins to lean, you might not notice it at first. A few degrees of difference in the angle might not become apparent to the human eye. However, if you begin to suspect it looks a little odd, you can use a bubble level to check. You should also consider checking if the chimney is leaning if you notice any water damage in the home. Several potential underlying causes include cracks in the crown, torn flashing, and damaged mortar. Note that the lean comes before a potential collapse, so this is not a matter to procrastinate on.

Is your chimney showing any of these signs?

Protect your family by contacting Brick Experts in the Dallas-Fort Worth area today. We promise courteous interactions, fast service, and long warranties for services that range from brick tucking to chimney brick repair. Send us a message or give us a call today to get the process started

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Gerry H. profile picture
Gerry H.
29 September 2026
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I contacted Brick Experts to repair a hairline crack on the south wall of my house as well as the mortar joints over the arched entry to my garage. I was concerned about matching the brick color since the home is fifteen years old and the brick has long been discontinued. I worked with Brian who did a great job finding a very close match. If you didn't know where to look, you'd never notice. Overall, the quality of the work was outstanding. The mason who did the repairs was professional and courteous and did a great job cleaning up the job site. I also felt the price was fair. I would highly recommend Brick Experts and would use them again should the need arise.
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Gabby Wang
17 September 2026
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Our brick repair was done quickly and well!
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Maria F profile picture
Maria F
16 September 2026
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Brick Experts Ft Worth rebuilt our brick mailbox that was the original home builder's 20 year old installation. From the first moment we contacted Brick Experts Ft Worth I knew we made the correct company selection. My website inquiry was answered within 30 minutes by a phone call even though it was after their normal business hours. Marcos, who was the project manager, came the next day and provided the estimate by early afternoon. I asked many questions about the build process and it was evident that Marcos had actually done masonry work before. The actual work started within one week. Responsive and easy to do business with. The brick mason crew spent about 1 1/2 days on the rebuild which included a new base which now has rebar to reinforce against movement of Carrollton soil. They were deliberate and meticulous with the build. It was obvious from watching that these gentlemen were experienced brick masons. They made precision brick cuts with masonry saw so rounded top of mailbox had smooth angles and corners. Clean-up was done each day and they even made sure all dry mortar chips were cleaned up from grass. I will definitely use Brick Experts Ft Worth for any future masonry projects I may have. Thank you to Marcos and crew for job well done.
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Robert Colmery Jr.
11 September 2026
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I received a number of quotes from different companies. David came out to take a look at our from porch and the repair work that was needed. He took the time to explain things in detail to my wife and she felt the most comfortable with David's recommendations. Once we signed the contract, David has a crew out in less than a week. Could not be happier with our decision! Robert Colmery
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Chuck Paschke
9 September 2026
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Outstanding customer service!! Marcos and his team did an amazing job from start to finish. Job was done with excellence, on time, and for a great price. I highly recommend to all!!!
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Quentin Lyons
1 September 2026
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Great service on realigning my brick mailbox!
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Carol Guiler profile picture
Carol Guiler
27 August 2026
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We've had work done twice and both times he's been prompt, reliable, and did great work. My husband was in that same business in Ohio for 40 years, so he's not easy to please. But he's been very pleased with their work
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Steven Lomas
21 August 2026
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We’ve had Brick Experts handle two different projects at our church facility, and they were prompt, professional and the work was completed in a timely manner. They take pride in their work, and it shows.
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Kevin Shaw profile picture
Kevin Shaw
12 August 2026
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Brick experts did a really nice job fixing my mortar and putting in some expansion joints. They got most of the work done in a half a day and then came back to finish up two days later. I am very satisfied with the work and the price!
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B Wright profile picture
B Wright
4 August 2026
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Brick Experts did a great job handling several problems for us. The process started out with David, who was timely and responsive. Then the good work done by Enrique and José: - Replaced a section of exposed aggregate driveway - thanks, Felix and crew. - Removed rotten redwood from the expansion joints in the driveway and pool deck and filled with sanded-top caulk; - Reset two driveway brick lines and replaced broken bricks; - Replaced dried out mastic around our pool; - Straightened two leaning brick pillars. The guys on the job worked hard in the summer heat and finished everything with quality. Pricing was fair.

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