Manchester’s Team for
Chimney Crown Repair & Rebuilds
While vinyl-sided chases have steel chase covers that close up the chimney top and keep rain, snow, and ice out, masonry chimneys rely on cement crowns to do the job. These are concrete coverings that sit at the top of the chimney stack and encourage moisture to slide off of the chimney top and away from its masonry walls. Count on us for chimney crown repair and chimney crown rebuilds.
What Are Common Causes of Chimney Crown Leaks?
Concrete crowns are known for their durability, but like anything, they aren’t immune to damage – especially if they were poorly built or not properly maintained. What are the most common reasons your chimney crown might break down?
No Slope
Crowns should slope downwards so that water flows off, rather than sits and pools. Crowns should also extend a little past the chimney stack.
Made With Mortar
Crowns of the past were often made with a basic mortar mix that, while strong, won’t hold up against water as well as cement.
Too Thin
Crowns should be at least 2 inches thick – anything less makes it more prone to cracking and crumbling.
Lack of Maintenance
If damages aren’t addressed early on, moisture can cause even hairline cracks to grow and spread.
Crown Repair vs. Crown Rebuild: Which Do I Need?
A crown repair is suitable if the concrete has only minor hairline cracks and is still structurally sound, as these can usually be sealed with a flexible, waterproof membrane to prevent further damage. However, you need a crown rebuild if the masonry is crumbling, missing chunks, or separating from the flue, as patching a severely compromised structure will not prevent water from rotting the chimney from the inside out.
Chimney Crown Repair
If your chimney crown is in need of repairs, we can seal cracks and holes to prevent further damage and water entry. Once repaired, we’ll apply CrownCoat – a flexible, long-lasting waterproof membrane that expands and contracts with your crown during temperature shifts.
Chimney Crown Rebuild
If your crown is past the point of repair, we can remove it and pour a new crown into place. With us, you can be confident that your new crown will be built with the right materials, the right thickness, the right slope, and the proper overhang or drip edge. Once the new crown is in place, we’ll protect it by applying CrownCoat.
Peace of Mind, One Flue at a Time
Are you looking for an experienced, certified, and reputable chimney chimney to perform your next chimney repair? Ceaser Chimney Service is proud to provide customers throughout the greater Manchester area with peace of mind – one flue at a time.
Call (603) 518-5773 or use our online appointment request form to get your crown repair or rebuild scheduled today!
Frequently Asked Questions
We’ve rounded up the most common inquiries to help you understand what your chimney crown should look like and why swift repairs are essential.
How do I know if my chimney crown is damaged?
Common signs of a damaged chimney crown include visible cracks along the top of your chimney, white staining (efflorescence) on the exterior masonry, water stains inside your firebox, or moisture damage on the ceiling near your chimney.
In some cases, you may notice chunks of concrete or mortar on your roof or in your yard. Because the crown sits at the very top of your chimney, damage isn’t always easy to spot from the ground, which is why a professional chimney inspection is the most reliable way to assess its condition. Our CSIA-certified technicians can identify hairline cracks before they become major problems.
Can I seal my chimney crown myself?
While DIY sealant products are available at hardware stores, improper application and the use of non-breathable sealants can do more harm than good. Sealing over active cracks without proper prep can trap moisture inside the masonry and accelerate deterioration. A proper crown repair requires assessing the depth and cause of the damage, preparing the surface correctly, and using the right materials for the freeze-thaw cycles common to New Hampshire winters.
As a CSIA-certified master chimney sweep, our owner has the training and experience to ensure the repair is done right the first time. Cutting corners on chimney crown work often leads to far more expensive-to-address problems down the road.
What happens if I ignore a damaged chimney crown?
A cracked or deteriorating chimney crown allows water to infiltrate the masonry system, setting off a chain reaction of damage – especially during New Hampshire’s freeze-thaw cycles when water expands and contracts inside the cracks. Over time, this can lead to spalling bricks, a damaged flue liner, deteriorated mortar joints, and even structural instability.
Water damage can also migrate into your home, causing ceiling stains, mold growth, and damage to surrounding framing. What starts as a minor crown repair can quickly escalate into a costly chimney rebuild or interior water remediation project if ignored.
Do I need a chimney inspection before getting my crown repaired?
Yes – a Level 1 or Level 2 chimney inspection is always recommended before any repair work begins. Crown damage is often a symptom of broader moisture issues, and it’s important to understand the full picture before starting on a fix. For example, if the flue liner or masonry below the crown has already sustained water damage, those issues need to be addressed alongside the crown repair. Our CSIA-certified inspections give you a complete assessment of your chimney’s condition so we can recommend the most effective, long-lasting solution.
Have more questions? We’re here to help!
Why Choose Ceaser Chimney Service & Repair?
When you invite us into your home, you’re choosing a team that values safety, quality, and customer satisfaction above all else.
Certified Technicians
We employ CSIA-certified technicians that complete regular training on best industry practices.
50+ Years in Business
The hearth store has been serving the area with care and dedication for over 50 years.
Fully Insured
We have full insurance coverage to ensure both the safety of our team and our customers.
Satisfaction Guarantee
We stand behind our work with a complete 100% satisfaction guarantee.
What Our Customers Say
See why homeowners trust Ceaser Chimney for their fireplace and chimney needs. Real reviews from real customers.
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Our Chimney Crown Pros Are Ready – Call Today
Don’t let a failing chimney crown get you down. Have your chimney inspected and repaired today to keep leaks at bay. Whether you’re in Manchester, Hudson, Greenville, Goffstown, Merrimack, or somewhere else in the area, our full-service chimney professionals are just a phone call away.
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Contact Information
Mon – Fri: 8am – 5pm
Sat & Sun: Closed
Our Service Area
We’re based in Manchester and proudly serve our neighbors in Exeter, Chester, Candia, Auburn, Goffstown, Merrimack, Bedford, Concord, Nashua, and the surrounding communities. Learn more about our full service area today.
If you have a prefab chimney, your chase cover may need replacing – ask about leak prevention options today.