We’re Madison’s Top Choice for Exceptional Concrete Chimney Crowns
A good quality, properly constructed concrete chimney crown (sometimes referred to as cap) is paramount in safeguarding your masonry chimney against the elements. And at Hansen & Sons, we pride ourselves on delivering superior-quality concrete chimney crowns that offer unparalleled protection and withstand the test of time. Our dedicated and highly trained team of Chimney Safety Institute of America (CSIA)-certified experts ensures every installation and repair is performed to the highest standards, providing Madison residents with the peace of mind that their chimneys are in the best hands.
For the last 71+ years, Hansen & Sons has been serving homeowners throughout Madison and beyond with top-tier chimney and fireplace products and services. We’ve seen and repaired a lot in the last seven decades, and with that experience comes a confidence that our team can tackle any problem they’re faced with – no matter how big or small. If you’re searching for chimney crown repair near Madison, Hansen & Sons is the place to call.
Learn more about our team, the services we offer, and how we might be able to help you. Get in touch with someone from our team by filling out this contact form through our website, or give us a call at 608-466-4185.
What Is a Chimney Crown?
A chimney crown is a thick slab of cement or concrete that is poured around the exposed flue and directly on top of the chimney chase (or, the larger structural cavity that surrounds the flue). Located just barely below the chimney cap, the crown acts as a first level of defense against external elements like rain, snow, flying debris, and animals, protecting the vulnerable inside components from damage and deterioration. Typically crafted from water-resistant and durable materials like concrete, these structures are installed with a slight overhang that helps divert water out and away from the structure.
In addition to the lip that extends past the base of the chimney, correctly poured chimney crowns resemble a mound with the highest point in the middle and a gradual slope to the edge in all directions. And while this does create a nice and crisp-looking finish, the chimney crown’s design is not merely aesthetic; it’s functional. The crown’s slanted surface ensures that rainwater, snow, and debris are effectively channeled away from the chimney, preventing water infiltration and the potential damage and devastation it can cause.
What Is the Purpose of a Chimney Crown?
The primary purpose of a chimney crown is to protect the chimney and its interior components from environmental damage. By acting as a barrier against rain, snow, ice, animals, and debris, the chimney crown plays a crucial role in maintaining the integrity and functionality of the chimney:
- Water Protection: One of – if not the – most significant threats to a chimney is water penetration. A well-designed chimney crown effectively directs water away from the chimney, preventing it from seeping into the masonry, which can cause deterioration and damage over time.
- Debris Prevention: The crown helps keep leaves, twigs, and other debris from entering the chimney. This is important for maintaining proper airflow and preventing blockages that could lead to inefficient operation or even dangerous conditions, such as carbon monoxide buildup.
- Animal Exclusion: By covering the top of the chimney, the crown helps prevent animals such as birds, squirrels, raccoons, and other climbing creatures from nesting inside the chimney, which can cause obstructions and potential fire hazards.
- Structural Integrity: The chimney crown contributes to the overall stability and durability of the chimney structure. It helps protect the bricks and mortar and vulnerable flue from weather-related wear and tear, thus extending the life and functionality of the entire appliance.
Has your chimney crown seen better days? Are you noticing cracking or crumbling pieces? Hansen & Sons can help. Per the Wisconsin building code, our masons are talented craftsmen who pour and install pristine concrete chimney caps that meet all standards and regulations and are built to last the long haul. Book your appointment today by calling 608-466-4185 or filling out our contact form online.
What Are the Most Common Reasons Chimney Crowns Fail?
Despite their importance, chimney crowns can fail for various reasons. Understanding these common causes can help homeowners take preventive measures to maintain their chimney crowns. The most frequent reasons for chimney crown failure include:
- Poor Construction: Inadequately constructed chimney crowns, whether due to improper materials, incorrect dimensions, or poor craftsmanship, are ultimately susceptible to failure, – it’s only a matter of time. For instance, a crown built from leftover brick mortar will deteriorate in a few years; the same is true of one that lacks sufficient overhang or the proper slope. Water will pool and eventually seep into the rest of the structure and cause numerous problems.
- Thermal Expansion and Contraction: Fluctuations in temperature cause the materials of the chimney crown to expand and contract. This continual movement can create cracks and fissures, allowing water to penetrate and cause further damage. Especially here in Madison where we have the most intense freeze/thaw cycles than any other state in the country.
- Lack of Maintenance: Regular maintenance is crucial to the longevity of a chimney crown. Neglecting routine inspections, chimney sweep services, and necessary repairs can allow minor issues to escalate into significant problems, ultimately leading to crown failure.
How Do You Repair a Chimney Crown?
Repairing a chimney crown requires a systematic approach tailored to the extent of the damage. Here are the steps we typically take when we’re called out for a chimney crown repair job:
- Inspection and Assessment: The first step is a thorough inspection to evaluate the condition of the chimney crown and identify specific areas of damage. This includes checking for cracks, spalling, and signs of water infiltration.
- Cleaning: The chimney crown must be cleaned to remove any debris, vegetative growth (common with water damage), or loose materials. This ensures a clean surface for effective repair.
- Crack Sealing: Small cracks and fissures can be sealed using a flexible, weather-resistant sealant. This prevents water from entering the crown and causing further damage.
- Crown Coating: For more extensive damage, a specialized crown coating can be applied. This coating provides a waterproof barrier that reinforces the existing crown and prevents future water penetration.
- Rebuilding: In cases of severe damage or deterioration, or if the structure wasn’t built properly to begin with, the chimney crown may need to be partially or fully rebuilt. This involves removing the damaged sections and reconstructing the crown using durable materials and proper design techniques.
- Waterproofing: After repairs are completed, we’ll apply a waterproofing agent to enhance the crown’s resistance to moisture and extend its lifespan.
For high-quality concrete chimney crown construction and repair near Madison, Hansen & Sons Chimney & Fireplace is the best choice for the job. The oldest fireplace and chimney service provider in our community, there’s a reason people keep coming back to schedule with our chimney experts. Schedule your appointment online by filling out our appointment request form or give us a call at 608-466-4185.
How Long Do Chimney Crowns Last?
The longevity of a chimney crown depends on various factors, including the quality of construction, materials used, environmental conditions, and maintenance practices. Generally, a well-constructed and properly maintained chimney crown can last between 20 to 50 years. Concrete chimney caps typically offer a longer lifespan compared to those made from metal or stone, provided they are adequately protected against moisture and environmental stressors.
Regular inspections and timely repairs are crucial for maximizing the lifespan of a chimney crown. Addressing minor issues promptly can prevent them from escalating into significant problems that could compromise the crown’s integrity and the overall chimney structure.
How Do I Know if My Chimney Crown Is Damaged?
Unfortunately, it’s not always easy to tell if your chimney crown is damaged. Because it’s located on top of the structure and is not accessible or even visible, it can be hard to discern its state of condition. However, there are still some signs that indicate deterioration and damage:
- Water Stains: Water stains or discoloration on the exterior of the chimney or the walls and ceiling surrounding your fireplace can indicate that the crown is not effectively directing water away, leading to moisture infiltration.
- Spalling Bricks: Spalling, or the flaking and chipping of bricks, around the chimney can be a sign of water damage originating from the crown.
- Leaking or Dripping: Water leaks or dripping sounds inside the chimney during or after rain can indicate that the crown is compromised and not effectively keeping water out.
Worried your crown is deteriorating? Give our pros a call and we’ll come take a look. Once we’ve seen the damage, we’ll be able to discuss repair options and get you outfitted with a pristinely poured concrete chimney crown that will serve you for years to come. Get started by calling 608-466-4185 or reach out online.
Give Hansen & Sons a Call To Schedule Your Chimney Crown Repair Today!
No matter the current state of your chimney crown, our dedicated chimney experts can help restore it to its former glory – maybe even better! We’ve been serving homeowners all over the Madison area since 1953 and we would love to welcome you into our Hansen & Sons family, too.
Contact us online or call 608-466-4185 for more details today!
No chimney should go without the protection of a chimney cap (sometimes called a rain cap). This is a simple and cost-effective chimney repair to make so call us to take care of it now.