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FAQs for chimney repair projects in Knowlton, NJ

Chimney repairs can take many forms for a seemingly simple structure, and costs can vary widely. Common chimney repairs include: 

  • Chimney flashing repair: $150–$500

  • Repointing mortar joints: $400–$2,500

  • Repair or replacement of flue liners: $200–$7,000

  • Patching brick or stone: $350–$3,000

  • Pouring a new concrete top: $100–$3,000

  • Repairing chimney caps: $75–$1,000

The cost to replace the chimney crown or top is about $1,550 on average. The range varies widely depending on the size of the chimney, the materials used, accessibility, and the extent of the damage. If you suspect a problem with your chimney top, call a professional masonry contractor for an inspection. 

Some of the most common chimney problems include:

  • Creosote buildup

  • Chimney blockage

  • Deteriorating brickwork or stonework

  • Cracked chimney top

  • Damaged flashing

  • Flue liner damage or deterioration

  • Damaged chimney cap

If you suspect you have a chimney problem, contact a masonry contractor for an inspection. 

On average, chimney repairs cost about $455. However, because of the vast range of potential repairs needed, the cost to repair a chimney ranges widely from $160 to $15,000, depending on the type and extent of repairs required.

The cost to replace a chimney is about $10,000 on average and can cost up to $15,000, depending on the size, accessibility, materials, and extent of the replacement. Sometimes tearing the chimney down to the roof line and rebuilding it is an option. But if the chimney's internal structure deteriorates badly enough, a complete demolition down to the fireplace or the foundation may be necessary.

The Knowlton, NJ homeowners’ guide to chimney repairs
From average costs to expert advice, get all the answers you need to get your job done.
stone chimney on roof
May 20, 2025
May 20, 2025
Your chimney inspection cost will vary based on the type of inspection, how accessible the chimney is, the chimney size, and the number of flues.
Woman in front of fireplace
Sep 24, 2024
Sep 24, 2024
The average cost to repair or replace a chimney crown depends on the damage, material, and any other chimney maintenance services bundled into your project.
gray chimney on roof
Jun 11, 2025
Jun 11, 2025
Chimney repair costs can vary by the type of chimney you have and the required repairs. Use this guide to help you estimate project costs.
Living room interior with cozy fireplace
Aug 29, 2024
Aug 29, 2024
Wondering what is a chimney damper? A chimney damper is a small flap that allows you to open and shut the airflow through your chimney.
A person cleaning a metal chimney on a tiled roof
Sep 20, 2024
Sep 20, 2024
If you have a new chimney or chimney liner, you may wonder if metal chimney flues need cleaning. The short answer is yes, you need to clean a metal chimney flue.
Chimney roof with shingles
Aug 22, 2024
Aug 22, 2024
It protects your chimney from the elements, but what is a chimney crown, and how does it work? Learn more about this essential element of every chimney.
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