Your Newark Chimney Is Telling You Something — Are You Listening?

Last Updated: June 2026
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Your Newark Chimney Is Telling You Something — Are You Listening?

Most chimney fires don’t announce themselves weeks in advance. They often begin with small details that homeowners either miss or decide to monitor a little longer. In Newark and across Essex County, these warning signs can remain unnoticed for a season or two before someone takes action.

CSIA-certified inspections are designed to identify problems that untrained eyes can miss. But before you schedule an inspection, your home may already be showing signs that something is wrong. Here are some of the most common warning signs, what they can indicate, and when it’s time to call a professional.

White Staining on the Exterior Brick

The chalky white residue that appears on the outside of a chimney is called efflorescence. It occurs when water moves through masonry and carries soluble salts to the surface as it evaporates.

Efflorescence may look cosmetic, but it indicates that moisture is moving through the masonry. Left untreated through a Newark winter, water intrusion can contribute to spalling and structural deterioration.

Call a professional now. Efflorescence is an early warning sign that there may be additional moisture damage within the chimney.

A Strong Smell Coming From the Fireplace in Summer

An unused fireplace should not have a strong, acrid odor during warm weather. A persistent smell can indicate creosote deposits inside the flue that are reacting to heat and humidity.

Older Newark homes with fireplaces that were converted from wood burning to gas may also have accumulated deposits from previous use.

Call a professional now. A noticeable creosote odor when the fireplace isn’t being used is a reason to have the chimney inspected and cleaned.

The Damper Won’t Open or Close All the Way

A damper that sticks, grinds, or refuses to seal properly is more than an inconvenience.

If the damper won’t close, conditioned air can escape and pests can enter the flue. If it won’t open properly, combustion gases can potentially back up into the home.

Older Newark row houses and Irvington colonials may still have original damper systems that have deteriorated over time.

Call a professional now. Have the damper evaluated before using the fireplace again if it cannot open or close properly.

Visible Gaps or Crumbling Mortar Joints

Take a look at the upper portion of your chimney from the ground. If the mortar between the bricks is cracked, receding, or missing, the chimney may have a developing structural problem.

Damaged mortar allows water to penetrate the masonry. Freeze-thaw cycles can then widen existing gaps and contribute to further deterioration.

The source estimates that tuckpointing in Essex County can cost approximately $500 to $1,500, depending on the extent of the damage.

Keep an eye on it if the gaps are minor and hairline. Call a professional if the joints are significantly open or pieces of mortar are falling onto the roof.

Shaling: Small Tile Pieces in the Firebox

If you find thin, curved pieces of clay inside the firebox after using the fireplace, they may be coming from the flue liner.

The liner separates combustion gases and heat from the surrounding framing and insulation. A cracked or deteriorating liner can therefore create a serious safety concern.

Call a professional now. Do not continue using the fireplace until a CSIA-certified chimney sweep has evaluated the liner.

Smoke Backing Into the Room

Occasional puffback during unusual wind conditions can happen, but smoke that repeatedly enters the living space during normal fireplace use indicates a potential draft problem.

Possible causes include a blockage, an improperly sized flue, liner deterioration, or negative air pressure inside the home.

Call a professional now. Smoke entering the living area should not be treated as a normal part of fireplace operation. Have the system diagnosed before using it again.

Animal Sounds or Nesting Material in the Flue

Chimney swifts, starlings, raccoons, and other animals may enter uncapped chimneys during warmer months. Scratching or chirping sounds, or debris falling into the firebox, can indicate that something has entered the flue.

Nesting material can become combustible when exposed to fireplace heat. However, homeowners should also be aware that some bird species are legally protected during active nesting periods.

Keep an eye on it during nesting season and contact a qualified professional for guidance. Once removal is legally appropriate, the flue should be cleared and properly capped before fireplace use.

Rust on the Firebox Floor or Damper Assembly

Light surface rust on cast-iron components can indicate that moisture is entering the chimney system.

Possible causes include a missing or damaged chimney cap, an improperly closing damper, or a cracked crown. Continued moisture exposure can eventually cause metal components to deteriorate.

Keep an eye on light surface rust. Call a professional if the rust is flaking or heavily pitted, components appear damaged, or you notice water staining around the firebox.

What Newark and Essex County Homeowners Get Wrong Most Often

One of the biggest mistakes homeowners make is treating chimney maintenance as a once-a-year task instead of responding to visible signs of deterioration.

Homeowners in Newark, Irvington, and East Orange may notice staining, damaged mortar, odors, or other warning signs during the summer but wait until October to call. By then, repairs can become more expensive and appointment availability can become limited.

Another common mistake is choosing an uncertified sweep simply because the price is lower. The source states that a CSIA-certified inspection in Essex County typically costs $150 to $250, while a liner replacement can cost approximately $2,500 to $7,000.

Addressing a problem early can therefore be far less expensive than waiting until major chimney repairs are necessary.

Schedule Your Free Chimney Inspection in Newark

Irvington Chimney Sweep serves Newark and surrounding Essex County communities, including Irvington, East Orange, Maplewood, and South Orange.

If your fireplace is showing any of the warning signs above, don’t wait until the next heating season to investigate them. Contact Irvington Chimney Sweep to schedule a free chimney inspection and find out what your chimney needs before a small warning sign becomes a much larger repair.

Serving your area: For related services in nearby communities, see Evergreen Chimney Woodbury NJ and American Chimney Company.
👤

Frank Morales, CSIA Certified Chimney Sweep

Master Sweep

Serving Irvington and Essex County with professional chimney cleaning and safety inspections.


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