What is Flashing? Why Does it Need Repairs?

All of the parts of the chimney system are important for chimney safety and function. Many of the parts work together to vent smoke, heat, and particles out of the chimney while others actually prevent stuff from getting in. While the air must leave the house through the flue, there are factors that can slow the process. If water penetrates the chimney system, for instance, the efficiency will drop and the risk of fire goes up.

Water Damage

If water is allowed into the system, you can expect all kinds of trouble. Water can leave stains on the masonry, both the interior and exterior, damages the liner and other assemblies in the system, and can cause leaks in other areas in the house. If you have a leak–any leak, anywhere–it is most likely a chimney problem. Don’t call a general contractor. Your first call should be to a certified chimney professional. When you call Black Moose, we will check the chimney for leaks, and the first thing we check will be the flashing. The flashing is the most common cause of chimney leaks.


Flashing is made up of multiple thin metal sheets, installed in a specific way to help water to run off and prevent water from penetrating. The flashing should be installed by a professional who is trained and experienced. When installed correctly, it should follow the slope and material of the roof, no nails should be visible, and it shouldn’t need any sealant or repellent either.

When Flashing Needs Attention

You will need flashing repairs if the flashing has been damaged by wind or if nails are exposed. When nails are exposed, water has a way in. A good time to call the professionals is if shingles have been falling from the roof or if there is a suspected leak. Additionally, if your flashing wasn’t installed by a professional, call and schedule a repair right away. Only the certified professionals are able to properly assess and install flashing on all roof types, to withstand all climates, and make lasting preventive measures.

Prevent damage later by scheduling now. The worst thing that can happen to a chimney system–even a well-built one–is water damage. Ensure your fireplace and chimney system is ready for winter and safe from water damage by scheduling chimney services now. Preparation now can prevent property loss, health problems, injury, and even death this winter.

Black Moose Chimney and Stove offers chimney inspections, sweeps, flashing repairs, and even waterproofing for added protection. Scheduling now will mean there is time for your appointment and your possible repair before winter.

Call 603-525-7905 today or 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)