How to Tell if You Need a New Chimney

Manchester NH Professional Chimney SweepRegularly cleaning and maintaining your chimney and making timely repairs will prolong its useful life. However, environmental conditions, age, and normal wear and tear can cause the chimney to deteriorate – even if you are no longer using the fireplace or heating stove. Its deterioration can further escalate when routine chimney inspections, maintenance, or professional cleanings are missed. While most chimney damage is repairable, the following are four signs that you may need a new chimney.

Spalling Bricks

One sign that you may need a new chimney is missing or damaged bricks and gaps in the mortar joints. Spalling bricks are often the result of water damage that occurs during the winter freeze-thaw cycle. The constant freezing and thawing cause the bricks to crack, splinter and crumble. Water damage can also cause the mortar joints to erode, resulting in gaps between the bricks. It can loosen the bricks causing them to separate from the chimney. Spalling bricks is a progressive issue and will continue to worsen until repairs are made. In minor cases that involve a few spalling bricks, repointing can repair the damage. However, when the brick damage is extensive, a partial or complete chimney rebuilding will be necessary to restore the chimney.

Leaning Chimney

A leaning chimney is another sign that you may need a new chimney. There can be several reasons that cause a chimney to lean. It may be a foundation problem due to settling, soil conditions, or erosion. Extensive masonry damage due to spalling or missing bricks, fire damage, or water intrusion can also cause the chimney to lean to one side. Since a leaning chimney is in danger of collapsing, an immediate chimney inspection is necessary.  While it may be possible to stabilize the structure temporarily, it will likely need to be torn down and replaced with a new chimney.

Chimney Crown Repair, Amhurst NH

Chimney Crown Damage

Chimney crown damage is more likely to occur when a broken chimney cap is not replaced or is missing entirely. The chimney crown is the upper-most portion of the chimney. The cement surface protects the chimney and flue from water-related damage. However, years of rain, snow, and wind, combined with normal wear and tear, can result in hairline cracks in the chimney crown. These hairline cracks start small but are sufficient to allow moisture to seep inside. Without intervention, the cracks in the crown will grow larger, allowing even more water to intrude. The moisture can further damage and weaken the masonry chimney requiring a partial or complete replacement.

Fire Damage

A chimney fire can cause extensive damage that requires a new chimney. A chimney that is not regularly cleaned is more likely to have excessive creosote. When creosote is not removed, it hardens into a tarry, crusty, and flammable substance. Although excessive creosote build-up is the primary cause of structure fires, most chimney fires go unnoticed. Also, once a fire occurs in the chimney, the likelihood of another fire increases. It can also spread to combustible building materials engulfing the house in flames. A chimney fire can cause extensive damage to the masonry that may require building a new chimney.

First Thing

John RantaJohn Ranta
17:01 22 Mar 24
They arrived on time, worked quickly and showed me the results. Prfessional throughout. jr
william greenwilliam green
23:21 14 Mar 24
Really helped me out can't say enough good things highly recommend!!!! The young man that came to my home was very knowledgeable and friendly great attitude all around answered all my questions and left me stress free best of all left no mess.🤙🏻🤙🏻
Michael Dell'OrtoMichael Dell'Orto
18:39 14 Mar 24
Jaime ConleyJaime Conley
17:13 14 Mar 24
Sarah GilliattSarah Gilliatt
01:46 13 Mar 24
A very thorough and careful job done! Thank you.
Larry CookLarry Cook
15:11 07 Mar 24
I wanted to give 5 stars but they are very busy which meant I had a good wait for both the inspection/cleaning, then for a quote on repairs and then for the repairs. Their prices seemed a little high to me but I have nothing to compare with as they were highly recommended by someone I trust and other companies had plenty of negatives reviews which kept me from getting additional quotes. I am happy with the work and they promptly returned to fix a mistake that had been made. Chris the inspector, Jennifer in the office, and Alex and his repair crew were all pleasant and took the time to answer all of my questions. Alex and his crew even took their shoes off (it was winter) before entering my house without even being asked! So if you are not in a rush and want to ensure you chimney is as safe as possible then I think you'll be happy with Black Moose.
Rebecca DeFuscoRebecca DeFusco
22:35 21 Feb 24
After a recent sweep of our chimney, it was discovered that our flue tiles were cracked. Black Moose techs were hard working, detail oriented and professional! Nice jobs guys! See you next year for my cleaning!
Karen CKaren C
14:52 14 Feb 24
Excellent I highly recommend Black Moose Chimney and Stove; Kelly and Liam are awesome, they did a great job. Extremely professional, arrived early, went through everything with a fine tooth comb ensuring pellet stove was thoroughly cleaned. They also were respectful of my home, conscientious and cleaned up after themselves. Made sure stove worked prior to leaving and told me to call promptly if anything came up afterward. Will definitely use them again.
Denise ClarkDenise Clark
16:32 31 Jan 24
We've had Black Moose clean our chimney for a number of years.But recently, we had an emergency situation at our home involving our chimney & oil furnace flue, which was caked full of soot from a malfunctioning furnace. They came & cleaned out both flues in no time, even going up on the roof with snow on it! They cleaned up after their work in the interior rooms where the oil furnace and the woodstove are located. Great work. Reasonable prices. Very nice people. You can't go wrong with Black Moose.
Joe GJoe G
18:30 24 Jan 24
Goods: The technicians know their business, very efficient in cleaning/inspection along with cleaning up after the 'dirty work'.Others: Communications could be more effective. Despite early coordination about scope of work (multiple flues within same chimney) the estimate provided did not reflect this and the final invoice was significantly more than the estimate provided.Quote for follow-on chimney relining was significantly more than that offered by other companies in the area (and far more than neighbors experienced for similar work accomplished by other companies)