Chimney Repair Costs and Factors Affecting It

Your home fireplace cannot function without its chimney. Ensure all parts are properly working with a periodic maintenance checkup or repairs.

The cost of fixing the fireplace and chimney depends on the type and size of work needed. The average cost of common repairs is between $99 and $1,339, although some jobs may require more.  Average Chimney Repair Cost Guide – Summary
Waterproofing/ Sealing $150 – $400
Cracked Mortar Joints or Crown Repairs $150 – $500
Chimney Cap Replacement $200 – $700
Flashing Repair $200 – $500
Wood Rot $200 – $2,000
Cracked Flue Tiles $250 – $1,000
Flashing Replacement $300 – $1,500
Smoke Chamber Parging $800 – $2,000
Flue Liner Replacement $900 – $7,000
Replacing Chimney Crowns $1,000 – $3,000
Rebuilding Spalling /Crumbling Brick $1,000 – $3,500
Resurfacing Flue $2,000 – $3,500
Repair Leaning Chimney $2,000 – $4,000
Full Chimney Replacement $4,000 – $15,000

How much should chimney repair cost?

A chimney is made up of various elements such as the chimney crown, flue, lining, and flashing. Some chimney damages can be easily spotted and fixed, including a broken chimney cap, flue, or crown. For simple repairs, chimney sweeps may charge an hourly rate of $50 to $100. Check the following estimates of how much you can expect to pay for chimney repairs. 

Brick and Mortar Repair

Mortar joints expand and contract due to seasonal changes resulting in cracks that allow smoke, stray embers, and carbon monoxide to get into roofs and walls. It is vital to find and fix cracks early, which costs $200 only. Otherwise,  it can increase structural damage and fire risks, boosting the average cost to reach over $3,000 while others charge per square foot. 

Brick Chimney Repair

Brick chimney repair cost ranges between $175 and $1,000, while a new chimney may cost about $10,000. 

  • Cracked bricks – Starts at $175 (below 10 bricks); $750 (over 10 bricks)
  • Spalling bricks – Starts at $350 (replacement of 10 bricks)
  • Masonry cracks – Starts at $300

Water Damage or Leaking Chimney Repair

Water can penetrate through cracks and cause wood rot and mold, usually starting at the roofline. Below are some ways to fix a leaking chimney and the costs that go with it.

  • Sealing – Starts at $180. Mortar is applied around the cracks.
  • Chimney flashing replacement– Starts at $200. Metal is installed at the intersection of the roof and chimney to provide additional protection against leaks.
  • Flashing repair – Starts at $20 (fixing the metal flashing) 

Chimney Crown Repair

A crown protects the top of the chimney. It prevents rain from going through the chimney flue or sparks from flying onto the roof. When water enters the cracks, it can compromise the bricks and mortar of the chimney, and the structural frame of your home.

During winter, the liquid will freeze and cause much larger cracks. It can compromise the integrity of both the entire chimney and fireplace. The cost of chimney replacement is over $10,000, while a simple chimney crown repair cost is only less than $400. 

Factors Affecting the Chimney Repair Expenses

Fixing fireplace and chimney damage will have different costs. Generally, labor costs are based on the following factors:

  • Location. The cost of living in a certain location affects the cost of services. 
  • Extent of damage. The more damage, the higher the cost of the repair. Regular chimney maintenance and fixing minor repairs soon help prevent further damages and costly repairs. 
  • Brick type. The cost of fixing the brick is based on the kind of brick you need.  
  • Chimney crown. The chimney crown’s condition affects the chimney repair cost. It is vital to immediately fix any damage to the crown, which can eventually cost chimney rebuilding.
  • Materials needed. Different repair types require certain materials. Each material needed will impact the whole repair cost.   

When to replace a chimney?

To keep the structural integrity of your chimney, you must contact a professional to inspect and repair small cracks, spalling brick, leaning structures, leak damage, or deteriorating mortar joints. However, if the damage is no longer repairable, the safest option is to rebuild the chimney.

Average chimney lifespan

Chimney Caps:

  • Mortar chimney: 15 years
  • Concrete chimney: over 100 years
  • Metal chimney: 10-20 years

Flue tile: 40-120 years  

Things to remember

Make sure to have an annual chimney inspection since your home insurance only covers fixing damages due to unexpected events, which are usually related to weather. Insurances do not cover wear and tear damages, general repairs, and routine inspections.

Contact chimney sweep or mason pros near your area to inspect and fix your chimney. Get in touch with Alexander and Xavier Masonry, based in Garland, Dallas, Texas, to help you with the masonry and repair works. Visit the website to get quotes. 

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