Cost to Rebuild Chimney above Roof Calculator

Factor	Estimated Cost Range
Chimney Size and Height	$2,000 – $5,000+
Materials Used	$500 – $1,500
Labor Costs	$1,000 – $3,000+
Complexity of the Project	Varies
Additional Repairs Needed	Varies
Local Labor Rates	Varies
Permits and Inspection Fees	Varies
Total Estimated Cost Range	$3,500 – $10,000+

FAQs

How much does it cost to rebuild a chimney top?

The cost to rebuild a chimney top can vary depending on the size of the chimney, the extent of the damage, and the materials used. On average, it can cost anywhere from $500 to $3,000 or more.

How much does it cost to repoint the top of a chimney?

The cost to repoint the top of a chimney will depend on the size of the chimney and the extent of repointing required. On average, it can cost between $1,500 to $3,000 or more.

How much does it cost to extend the height of a chimney?

Extending the height of a chimney can cost between $500 to $2,000 or more, depending on the materials used and the complexity of the project.

How long does it take to rebuild a chimney stack?

The time it takes to rebuild a chimney stack can vary depending on the size of the chimney and the complexity of the project. On average, it can take anywhere from a few days to a week or more.

Is it better to repoint or rebuild a chimney?

Whether to repoint or rebuild a chimney depends on the extent of the damage. Repointing is generally a more cost-effective option for minor damage, while rebuilding is necessary for severely deteriorated chimneys.

What is the difference between tuckpointing and repointing a chimney?

Tuckpointing and repointing are similar processes that involve repairing mortar joints in a masonry chimney. Tuckpointing is a technique of applying two different colors of mortar to give the appearance of fine joints, while repointing involves removing damaged mortar and replacing it with new mortar.

Is it cheaper to remove a chimney stack or support it?

Removing a chimney stack can be cheaper than supporting it, as supporting may require additional structural work. However, the cost difference will depend on the specific circumstances of the project.

How many years do chimneys last?

The lifespan of a chimney can vary depending on the materials used, the climate, and how well it’s maintained. In general, a well-built masonry chimney can last 50 to 100 years or more.

How do I know if my chimney needs repointing?

Signs that your chimney may need repointing include visible cracks or gaps in the mortar joints, crumbling mortar, water leaks inside the house, or a leaning chimney stack.

What is the proper chimney height above the roof?

The proper chimney height above the roofline should typically extend at least 3 feet above the highest point where it penetrates the roof and be at least 2 feet higher than any part of the building within a horizontal distance of 10 feet.

How much value does a chimney add to a house?

A well-maintained and functional chimney can add value to a house, but the amount varies depending on the market and the buyer’s preferences. It’s difficult to quantify precisely, but a functional chimney may make a property more appealing to some buyers.

Who repairs tall chimneys?

Tall chimneys are typically repaired by professional chimney contractors or masonry specialists experienced in chimney repairs and construction.

Do roofers remove chimney stacks?

Some roofers may remove chimney stacks as part of their services, but it’s essential to hire a professional with experience in chimney removal and structural modifications.

Does the chimney stack support the roof?

In some cases, a chimney stack may provide structural support to a portion of the roof. If you plan to remove or modify a chimney stack, you should consult a structural engineer to assess its role in supporting the roof.

Can you rebuild an old chimney?

Yes, an old chimney can be rebuilt if it has deteriorated or become unsafe. A professional chimney contractor can assess the condition of the chimney and recommend the appropriate course of action.

Can you rebuild part of a chimney?

Yes, it’s possible to rebuild part of a chimney that has sustained damage or deterioration. The extent of the rebuild will depend on the condition of the chimney and the necessary repairs.

How often do chimneys need repointing?

The frequency of repointing depends on the condition of the chimney and the materials used. In general, chimneys may need repointing every 25 to 50 years.

Does my chimney need to be rebuilt?

Whether a chimney needs to be rebuilt depends on the extent of damage, deterioration, or structural issues. A professional chimney inspection will help determine the appropriate course of action.

Is repointing cheaper than tuckpointing?

Repointing is generally cheaper than tuckpointing because it involves a simpler process of removing and replacing deteriorated mortar without the additional step of applying two different mortar colors.

What is an alternative to repointing?

An alternative to repointing is applying a thin surface coating or sealant to the exterior of the chimney. However, this method may not be suitable for severely deteriorated chimneys or those with structural issues.

What is the best material to repoint a chimney?

The best material to repoint a chimney is usually a mortar mix that matches the original mortar in composition and color. It’s essential to use the right materials to maintain the structural integrity and aesthetic appearance of the chimney.

Do I need permission to remove a chimney?

The need for permission to remove a chimney may vary based on local building codes and regulations. In some cases, a permit may be required for structural modifications.

Is it a big job to remove a chimney?

Removing a chimney can be a significant job that involves structural modifications to the roof and adjacent areas. It’s essential to hire experienced professionals to ensure safe and proper removal.

Why do unused chimneys need ventilation?

Unused chimneys need ventilation to prevent condensation, moisture buildup, and potential damage to the structure. Ventilation helps maintain a healthy environment within the chimney and prevents issues like dampness and mold growth.

What time of year is best for chimney repair?

Chimney repairs can be done year-round, but it’s often best to schedule them during dry and mild weather conditions, such as spring or fall.

How do I know if my chimney is good?

A well-maintained chimney should have no visible cracks or gaps in the mortar joints, no leaning or instability, and a sound masonry structure. Regular inspections by a professional chimney sweep can help determine the chimney’s condition.

Does a chimney need to be cleaned yearly?

Yes, a chimney should be cleaned yearly, especially if it’s regularly used. Regular chimney cleaning helps prevent creosote buildup and reduces the risk of chimney fires.

Is chimney repointing urgent?

The urgency of chimney repointing depends on the condition of the mortar joints. If there are visible cracks, gaps, or deteriorated mortar, it’s essential to address the issue promptly to prevent further damage.

How much does it cost to replace flashing around a chimney?

The cost to replace flashing around a chimney can vary depending on the size of the chimney and the extent of the replacement needed. On average, it can cost between $300 to $800 or more.

How do you know if your chimney is damaged?

Signs of chimney damage include visible cracks, leaning, crumbling mortar, water leaks, or staining on the chimney’s exterior or interior walls.

What is the 3 2 10 chimney rule?

The 3-2-10 chimney rule refers to the recommended chimney height above the roofline: the chimney should extend at least 3 feet above the highest point where it penetrates the roof and be at least 2 feet higher than any part of the building within a horizontal distance of 10 feet.

Is a taller chimney better?

A taller chimney can improve draft and ensure proper ventilation for the fireplace or heating appliance. However, the chimney should be of an appropriate height based on specific design considerations and local building codes.

Can a chimney be too high?

A chimney can be too high if it exceeds local building codes or if it creates excessive draft, which may lead to other issues such as downdrafts.

Should a chimney be attached to the house?

Yes, a chimney should be properly attached to the house to ensure stability and safety. It should be structurally sound and meet building codes and engineering requirements.

What to look for when buying a chimney?

When buying a property with a chimney, look for signs of damage, water leaks, or structural issues. It’s essential to have a professional chimney inspection before finalizing the purchase.

How tall should a chimney be in a two-story house?

The height of a chimney in a two-story house should adhere to local building codes and the 3-2-10 rule. It should extend at least 3 feet above the highest point where it penetrates the roof and be at least 2 feet higher than any part of the building within a horizontal distance of 10 feet.

Why do some houses have tall chimneys?

Tall chimneys can improve draft efficiency, especially in areas with high wind or frequent downdrafts. They also add an aesthetic element to the house’s architecture.

Are chimneys a structural part of a house?

Chimneys can be structural components in some houses, providing support for portions of the roof or floors. However, not all chimneys have a structural function.

Do chimneys provide structural support?

In some cases, chimneys provide structural support to parts of the house. It depends on the chimney’s design and how it’s integrated into the building’s structure.

What is the top of a chimney stack called?

The top of a chimney stack is typically called the “chimney cap” or “chimney crown.”

What is in between the chimney and roof?

The area between the chimney and the roof is typically sealed with flashing, which prevents water from entering and causing leaks.

Do I need a structural engineer to remove a chimney stack?

If a chimney stack provides structural support to any part of the house, you may need a structural engineer’s assessment before removing it to ensure the house’s stability.

What is the difference between a chimney and a chimney stack?

The terms “chimney” and “chimney stack” are often used interchangeably to refer to the same thing: the vertical masonry structure that provides ventilation for fireplaces or heating appliances.

What is the cost of removing a chimney stack?

The cost of removing a chimney stack can vary depending on factors like the size of the chimney, the complexity of the removal, and the associated structural work. On average, it can cost between $2,000 to $5,000 or more.

How long does it take to remove a chimney stack?

The time it takes to remove a chimney stack depends on its size and complexity. It can take a few days to a week or more to complete the removal.

How do you fix a crumbling chimney?

Fixing a crumbling chimney involves repointing or rebuilding the damaged masonry joints and replacing any deteriorated bricks or stones.

What to do about a crumbling chimney?

If your chimney is crumbling, it’s essential to address the issue promptly. Contact a professional chimney contractor for an inspection and recommendations for repairs or reconstruction.

How do you fix a cracked chimney stack?

Repairing a cracked chimney stack may involve filling the cracks with appropriate masonry repair products or replacing damaged bricks or stones.

How long does a brick chimney last?

A well-maintained brick chimney can last 50 to 100 years or more, depending on the quality of materials and regular maintenance.

Can you replace bricks in a chimney?

Yes, individual bricks in a chimney can be replaced if they are damaged or deteriorated.

Can I reline my chimney myself?

Chimney relining is a complex task that requires expertise and specialized equipment. It’s best to hire a professional chimney contractor for chimney relining.

What is the 7 times rule for chimneys?

I’m not familiar with a specific “7 times rule” for chimneys. It might be a term or guideline used in a specific context that I don’t have information on.

Who is responsible for chimney repair?

The responsibility for chimney repair typically falls on the homeowner or property owner. Regular chimney inspections and maintenance are crucial to identify and address any issues promptly.

Does a new chimney increase home value?

A new chimney, especially if it’s well-designed and functional, can add value to a property by enhancing its appeal and providing an additional feature.

What is the difference between chimney repointing and tuckpointing?

I’ve already answered this question earlier. Both chimney repointing and tuckpointing involve repairing mortar joints in a masonry chimney, but tuckpointing specifically involves applying two different colors of mortar to give the appearance of fine joints.

How long does repointed mortar last?

The longevity of repointed mortar depends on various factors, such as the quality of materials used, the climate, and how well the chimney is maintained. Properly done repointing can last for several decades.

What happens if you don’t repoint?

If you don’t repoint a deteriorating chimney, the masonry can continue to degrade, leading to water leaks, structural issues, and potential safety hazards.

How long does chimney mortar last?

Chimney mortar can last for many years, but its lifespan depends on factors like weather exposure, maintenance, and the quality of the original construction.

How long does it take to repoint a chimney?

The time it takes to repoint a chimney can vary depending on its size and the extent of repointing needed. It may take several days to complete the repointing process.

Is a chimney breast load-bearing?

In some cases, a chimney breast may be load-bearing, meaning it supports the weight of the chimney above it. If you plan to remove a chimney breast, consult with a structural engineer to assess its load-bearing status.

Do you need planning permission for removing a chimney?

The need for planning permission for removing a chimney may vary based on local regulations and the extent of the removal. In some cases, you may need to obtain permission from your local authorities.

Can an unused chimney cause carbon monoxide?

An unused chimney can cause carbon monoxide to seep into the living space if it’s not properly capped or vented. It’s essential to have unused chimneys appropriately sealed and ventilated.

Should old chimneys be vented?

Unused old chimneys should be vented to prevent moisture buildup and potential issues with dampness and mold. Proper ventilation helps maintain a healthy environment within the chimney.

Should an unused chimney be swept?

An unused chimney doesn’t need regular sweeping, but it’s essential to have it inspected and cleaned if you plan to use it again or if it’s causing problems like downdrafts.

What causes most chimney deterioration?

Chimney deterioration is often caused by exposure to weather elements, freeze-thaw cycles, and lack of regular maintenance. Water penetration and acidic condensation can also contribute to deterioration.

How often should a chimney flue be replaced?

The frequency of chimney flue replacement depends on factors like the type of flue liner and its condition. Stainless steel flue liners, for example, can last up to 20-30 years or more with proper care.

How often should you seal your chimney?

Chimney sealing or waterproofing should be done every 5 to 10 years, depending on the product used and the climate. Regular maintenance helps protect the chimney from water damage.

What time of year is best for chimney repair?

As I mentioned earlier, chimney repairs can be done year-round, but it’s often best to schedule them during dry and mild weather conditions, such as spring or fall.

What does a chimney look like that needs to be cleaned?

A chimney that needs cleaning may have visible soot or creosote buildup on the flue walls. There may also be a strong, smoky smell coming from the fireplace or stove.

How do you know if your chimney is damaged?

I’ve already answered this question earlier. Signs of chimney damage include visible cracks, leaning, crumbling mortar, water leaks, or staining on the chimney’s exterior or interior walls.