The Basics of Chimney Crown Repair

Chimney Crown Repair in New Boston NHYour chimney crown is the ceiling that covers the top of the chimney opening. It endures abuse from weather and critters on the outside and heat from the inside. Over time the crown can become damaged–especially if it isn’t constructed or maintained properly.

The Chimney Crown

This slab of concrete extends from the flue pipe to the edge of the chimney at a slant so that water runs off. The crown should have a two-inch overhang so that water drips off instead of running down the masonry, staining and damaging as it goes. It should be constructed of concrete and reinforced with steel mesh. Because water, ice, and snow are hard on the crown, it should be at least 4 inches thick at its thinnest point. When chimney crowns are not constructed to these specifications they do not last as long and end up allowing water into the chimney system, causing water damage.

Incorrectly Constructed Crowns

Cutting corners with the crown is not a good idea. While some chimney sweeps choose to construct the crown from leftover mortar, this is not recommended. A mortar crown will not stand against water and weather abuse and will need to be repaired or replaced often to avoid costly damages. Forming a flat crown is definitely easier, and if your technician replaces your crown with a flat substitute, he or she is most likely an amateur and not a trained and certified chimney sweep. Similarly, if the crown doesn’t have an overhang, it is constructed incorrectly and will lead to staining and water damage on the masonry itself, and may leak through the flashing at the base of the chimney.

chimney leak & chimney crown repair in Francestown NHChimney Crown Repair

There may be points in time that your crown needs attention. Problems with the crown may be discovered during a routine chimney inspection or as a result of damages. If cracks, voids, and deterioration are discovered during an inspection, but the overall structure is okay, it can be an easy fix. Black Moose technicians are experienced and certified to apply an industrial product that seals the crown and prolongs its life. If, however, the crown is badly damaged or constructed incorrectly, we can replace it quickly and correctly. Our certified chimney sweeps construct chimney crowns from the correct materials, with the right shape and overhang for it to work properly. We can then apply a waterproof sealant to the entire exterior portion of the chimney to prevent water penetration and damage.

Schedule Chimney Maintenance Now

When you schedule your chimney sweep and inspection annually, you’re less likely to experience issues with your chimney system. Do not light a fire in a chimney that hasn’t been inspected in the last 12 months, especially if your area experiences strong winds, earthquakes, and storms that can affect parts of your chimney system (like the crown). Even one season of cold weather can badly damage a chimney system if water is allowed into the system. Avoid this costly damage, decreased chimney efficiency, and danger of fire by scheduling routine maintenance now.

Call Black Moose Chimney and Stove now at 603-525-7905. You can also request an appointment online.

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)