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Chimney Stains and How to Fix Them

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The last thing a home owner wants to deal with is an ugly or discolored chimney, especially if you’re looking to sell or impress. A stained chimney exterior has various causes, but some are more important than others. Since most chimney stains are caused from moisture, all chimney stains should be evaluated by a certified chimney sweep.

Chimney Stains and How to fix Them - Carbondale CO - Bulldog Chimney

The Types of Chimney Stains Include:

Efflorescence is white residue on the surface of the chimney. It’s caused from moisture moving through the masonry, and evaporating, leaving behind salt deposits on the exterior of the chimney that look stained and ugly. This type of discoloration is caused from leaking, and should be assessed by a professional. A certified chimney sweep can remove the residue, restoring the masonry to it’s former beauty, and correct the problem that caused the leak in the first place.

Brown or green stains mean that your chimney has heavy water damage, and that the cracks in your masonry has mold and algae growth. When the water damage is this extensive, there may be an outside source for the water, such as a leaking or clogged gutter that pushes water into the chimney system. This amount of water penetration is devastating to a masonry chimney.

Black stains are most often caused by soot wash-off. If your chimney looks to have black stains, it likely isn’t burning hot enough to carry all of the soot and byproducts up and out of the chimney system. Instead soot settles onto the chimney cap, where it builds up, and is washed off during rain.

Black stains on your masonry chimney may seem like a minor problem, but anytime there is evidence that your fireplace or appliance isn’t working as efficiently as possible, it’s time to call a professional. A certified chimney sweep can assess the cause of any chimney stain, and at Bulldog Chimney Sweeps, we have experience with diagnosing and treating all types. Our sweeps address the safety and efficiency concerns before cleaning and restoring your chimney back to it’s original beauty.

A Complete Fix, Start to Finish

It’s not enough to just have the masonry cleaned. As a responsible home or business owner, it’s important to have a professional assess the cause of the masonry stains, and correct the problem. The type of problem that causes these stains can stall a real estate sale or annual insurance review, so it’s best to have it fixed when you can. It’s also not recommended to continue using a fireplace and chimney system when water is penetrating the system. The Chimney Safety Institute of America (CSIA) warns that chimney systems that withstand water damage are safety hazards, and that water penetration wreaks havoc on masonry chimneys.

When you call a CSIA Certified Chimney Sweep® (CCS), you know you’re hiring a professional with experience to back up their professionalism. Bulldog Chimney Sweeps are certified at sweeping and cleaning, and never take short cuts that may compromise the safety and integrity of your home or business.

Call a Bulldog Chimney Sweep or schedule your appointment online today.