Best Chimney Crown Repair (Buyer’s Guide)

The chimney crown is an important part of your chimney. It protects the top of your chimney from rain, snow, leaves and debris that can build up over time. If you are experiencing any of these problems then it may be time to replace or repair your crown.

Best Choice

CHIMNEYRX Brushable Chimney Crown Repair, 2 Gallon
  • Fast-setting, Flexible Coating that Seals and Protects Chimney Crown Tops - Repairs Cracked Chimney...
  • Stops Chimney Water Leaks & Repairs Chimney Crown Cracks
  • Specifically Formulated to Repair and Protect Fireplace & Chimney Crowns from Water Intrusion
  • Covers Approximately 40 Square Feet per Gallon
  • Easy to Apply With a 3 Inch or 4 Inch Paint Brush, & Cures in 2-4 Hours

The Chimney RX Brushable Crown Repair consists of a proprietary blend of cement and inorganic fibers, which when mixed with water forms a thick paste. The material is designed to be brush applied directly on top of existing masonry surfaces that have some degree of loose or missing mortar joints, cracks, chips or other imperfections up to one square inch (25 mm) in size.

Best Selling Chimney Crown Repair

A new or repaired crown will keep the inside of your house dry and prevent moisture damage to the sheathing boards, brick work and other parts on top of the roof line. This blog post provides information about how to spot a worn out or damaged chimney crown so you don’t have to worry about being left with costly repairs down the road!

Best No. 1
CHIMNEYRX Brushable Chimney Crown Repair, 1 Gallon
  • Fast-setting, Flexible Coating that Seals and Protects Chimney Crown Tops - Repairs Cracked Chimney...
  • Stops Chimney Water Leaks & Repairs Chimney Crown Cracks
  • Specifically Formulated to Repair and Protect Fireplace & Chimney Crowns from Water Intrusion
  • Covers Approximately 40 Square Feet per Gallon
  • Easy to Apply With a 3 Inch or 4 Inch Paint Brush, & Cures in 2-4 Hours
Best No. 2
MasonryDefender Chimney Crown Sealer - Brushable Sealant Fixes Cracked Chimney Tops & Prevents Chimney Leaks
  • Seals and Waterproofs Chimney Crowns - Stop Water Leaks Fast With This Elastomeric Sealer Designed...
  • Permanently Flexible Sealant - Won't Crack or Chip Over Time, Stays Flexible
  • Long Lasting Sealant Helps Prevent Chimney Leaks - Lasts for Years
  • Easy to Apply With a Paint Brush - Simply Brush 2 Coats of Product On Chimney Crowns for Superior...
  • Great Coverage - Covers 20 Sq. Ft. per Half Gallon Container
Best No. 3
CHIMNEYRX Trowelable Crown Repair, 2 Gallon
  • ChimneyRx Trowelable Chimney Crown Repair can be used for crack repair, surface grouting and tuck...
  • It can be used as a bonding mortar to replace badly spalled brick units or for parging over brick...
  • Permanently flexible; no bonding agent required
  • Natural concrete/mortar look
  • It is ready to use and it's environmentally friendly.

CHIMNEYRX Brushable Chimney Crown Repair

CHIMNEYRX Brushable Chimney Crown Repair, 2 Gallon
  • Fast-setting, Flexible Coating that Seals and Protects Chimney Crown Tops - Repairs Cracked Chimney...
  • Stops Chimney Water Leaks & Repairs Chimney Crown Cracks
  • Specifically Formulated to Repair and Protect Fireplace & Chimney Crowns from Water Intrusion
  • Covers Approximately 40 Square Feet per Gallon
  • Easy to Apply With a 3 Inch or 4 Inch Paint Brush, & Cures in 2-4 Hours

Product Description

The Chimney RX Brushable Crown Repair consists of a proprietary blend of cement and inorganic fibers, which when mixed with water forms a thick paste.

The material is designed to be brush applied directly on top of existing masonry surfaces that have some degree of loose or missing mortar joints, cracks, chips or other imperfections up to one square inch (25 mm) in size. When dry it becomes as strong as ordinary portland cement grout while also having the ability to expand and contract under changing temperature conditions without cracking. It can easily be removed from most tile liners by simply rinsing away with hot water if necessary at any time after application.

When used to repair brick chimney crowns your Chimney RX Brushable Crown Repair can result in a performance enhancement of up to 75% over the original masonry material.

The proprietary formula is also water resistant, making it an ideal solution for protecting any existing damaged areas from further weather exposure or damage due to heavy rain showers and ice dams created by melting snow. The product has been tested successfully on all types of clay and concrete tile liners including factory installed fiberglass mat materials without requiring their replacement when properly applied according to our simple instructions included with each order.

Pros

  • Is a thick paste which can be applied with a brush
  • Reduces the risk of further damage to chimneys and walls from water leaks.
  • Can withstand up to -50 degrees Fahrenheit temperature changes as well as heavy rain showers without cracking or losing adhesion between layers.

Cons

  • Does not bond well on some brick surfaces.

Recommended?

The Chimney RX Brushable Crown Repair will result in a significant improvement over the original masonry material of your chimney crown with few if any downsides or negative effects when used according to our instructions included with each order. If you are experiencing water leaks around your chimney, whether they be noticeable stains inside your home or damage outside near walkways and driveways this product is absolutely worth trying before replacing anything above ground that may have been done incorrectly by previous contractors who did not know what materials were best for your particular situation.

ChimneySaver CrownSeal Crown Repair

CrownSeal Crown Repair (2 Gallon)
  • 10 Year Warranty, Stays Permanently Flexible
  • Trowelable Coating That Repairs Cracked, or Damaged Chimney Crowns to Stop Water Intrusion
  • No Bonding Agent Required, Ready to Use
  • Natural Concrete/Mortar Look
  • Environmentally Friendly, Soap and Water Cleanup

Product Description

Using two gallons of the ChimneySaver CrownSeal crown repair will seal virtually any chimney crown. This product is a rubberized coating which expands and contracts with your masonry to form a waterproof, airtight bond that provides permanent weatherproofing in all climates. Additionally, this material has been tested by Underwriters Laboratories (UL) for use on wood burning appliances and approved as an acceptable underlayment for fireplace dampers.

In addition to being used to replace cracked or missing mortar from brick fireplaces, you can also use it when laying flagstone over existing concrete porch/deck slabs – a common problem that frequently results in water leaks into homes. In fact, one reviewer wrote: “I have done several outdoor projects with this product and it is incredible. I recently did a flagstone patio and steps, with the transition to my house (a cape cod) covered in concrete on one side of the front porch.”

See also
How to remove Glazed Creosote from Chimney? (User’s Guide)

This material does not require any mixing or special tools; just brush it onto your surface using standard paint brushes – simply pour out the amount needed into a bucket then apply generously over cracks up to an inch wide. In less than four hours you can walk on it but after that period has passed, fully cured contents are completely waterproof for unlimited time periods when exposed either indoors or outdoors.

In addition, this product dries within minutes so if there’s excess material simply use a putty knife blade to remove which makes cleanup easy since no solvents are needed.

Also, it can be applied in freezing weather since this product is designed for all climates and temperatures from 0 to 110 degrees Fahrenheit with a minimum temperature of 40 degrees F being ideal. Plus, if you don’t have time to do the job yourself then simply send your ChimneySaver CrownSeal crown repair material back under its 100% Satisfaction Guarantee within 30 days for a full refund – no questions asked!

Pros

  • Saves time
  • Provides a watertight seal
  • Lasts indefinitely
  • 100% Satisfaction Guarantee

Cons

  • Not for use on metal surfaces
  • Requires multiple coats to adequately seal larger gaps
  • Does not adhere well if painted over (must be applied before painting)

Recommended?

ChimneySaver CrownSeal is easy to use and provides a permanent seal. For this reason, we recommend it as the Best Chimney Crown Repair (Buyer’s Guide) on the market today!

MasonryDefender Chimney Crown Repair Sealer

MasonryDefender Chimney Crown Sealer - Brushable Sealant Fixes Cracked Chimney Tops & Prevents Chimney Leaks
  • Seals and Waterproofs Chimney Crowns - Stop Water Leaks Fast With This Elastomeric Sealer Designed...
  • Permanently Flexible Sealant - Won't Crack or Chip Over Time, Stays Flexible
  • Long Lasting Sealant Helps Prevent Chimney Leaks - Lasts for Years
  • Easy to Apply With a Paint Brush - Simply Brush 2 Coats of Product On Chimney Crowns for Superior...
  • Great Coverage - Covers 20 Sq. Ft. per Half Gallon Container

Product Description

If you have a damaged chimney crown, the best way to fix it is with Chimney Defender’s brushable masonry sealant. Brush on this high-quality single component acrylic elastomeric coating and your cracked or leaking chimney will be sealed up tight!

This powerful yet flexible material dries in 60 minutes & becomes permanently elastic, preventing cracks from reopening—even when exposed to extreme temperature changes. It won’t crack and peel like most other products. The result: A waterproof barrier which protects against moisture leaks for years of dependable service (with minimal maintenance). This product also has excellent adhesion over any surface including brick, concrete block, wood stucco and metal roofing systems!

It’s a great solution for chimney leaks that form when water gets in behind the masonry crown and causes it to separate from the flue tile. This can be due to a number of reasons, including flashings which have been improperly installed or are missing altogether.

It’s also perfect if your current mortar is loose, deteriorated or poorly applied—which will let water seep around & under the brickwork crown where it traps moisture inside resulting in spalling (breaking off) stone tiles followed by serious decay/deterioration! In fact, Chimney Defender’s Sealer has proven itself time-after-time as one of the best solutions on today’s market for sealing up these types of cracks & preventing future damage before it can take hold!

This single component system is easy to brush on and won’t sag, drip or run. After application it will quickly form a waterproof seal that’s highly resistant to temperature changes & cracking. It comes ready-to-use in an 18 oz cartridge with a stainless steel mixing tip for clean accurate dispensing (eliminates waste). On exposed vertical surfaces you should always apply Chimney Defender Sealer from the top down. This ensures proper adhesion as well as drying faster because it doesn’t pool up/run off before curing properly.

Pros

  • Brush on to fix cracks, leaks & seal masonry crown repairs
  • High quality acrylic elastomeric coating that forms a strong waterproof barrier
  • Will not crack or peel like most other products
  • Excellent adhesion over any surface including brick, concrete block, wood stucco and metal roofing systems!
  • Perfect for sealing up cracked or leaking chimney crowns due to missing flashings/improper installation.

Cons

  • None.

Recommended?

Yes. This is one of the best products on today’s market for sealing up cracks & preventing future damage before it can take hold! If you have a damaged chimney crown, this brushable masonry sealant will fix your problem and protect against moisture leaks for years to come—all without having to replace your whole crown or flashing system!

Buyer’s Guide

A chimney crown is a part of your home’s system which protects the interior portion from exterior elements. The main purpose for this type of feature is to protect and prevent water damage, leaks or other issues that can form in between brickwork joints. It also keeps animals such as birds and squirrels away from nesting inside the wall cavity. This way you don’t need to worry about them causing any major problems with weathering or nests blocking airflow through ventilation systems like fireplaces and wood stoves.

If you have a chimney crown that requires replacement or repair, there are several choices available to homeowners. Depending on the type of material used as well as damage and wear from weathering, it could be best for you to replace your existing feature with one that is made from the same materials.

There are several types of materials that can be used to create chimney crowns. The main focus is on the durability and cost, but you should also consider how long your new feature will last as well as maintenance requirements over time.

One type of material homeowners typically choose for their replacement or repair project involves using mortar mix created with Portland cement, sand and water content. This mixture has been around since Victorian times; however homeowners may want to consider alternatives like cements designed specifically for use in fireplaces which contain additives like fiberglass fibers (to increase strength) and potassium nitrate (which helps improve resistance). Many alternative products require very little repairs throughout the years compared to traditional fireplace cements that must be replaced every five to seven years.

See also
Best Propane Tank Top Heater (Buyer’s Guide)

There are also various types of masonry materials which can be used for chimney crowns including rock, brick and stone. Rock options include basalt or tuff stones that resemble lava rocks made from volcanic matter; however you should consider the maintenance requirements as some products must be cleaned regularly with a wire brush or dust mask in order to keep them looking their best over time. Brick is another common material homeowners choose because it provides good protection against heat so they don’t need to worry about damage due to excessive temperatures inside their fireplace chamber. This type of material usually lasts 20-25 years before needing replacement so depending on your budget and how often you use your fireplace, this may not always be the best option for you. Stone is another durable material that offers good protection from outdoor elements; however it’s more expensive than brick and requires regular sealing to maintain its appearance as well as occasional repairs which can cost around $150 per hour (based on the size of your chimney).

What is Chimney Crown Repair?

Crown repair is a term that refers to the restoration of masonry crowns on chimneys. The crown, also known as the mortar cap or top course, protects your chimney from water damage and weathering. A damaged, deteriorating or missing crown can compromise its structural integrity and cause it to fail prematurely.

The crown is located at the very top of your chimney. It usually consists of a type of brick or stone, and it can also be made from steel lathe filled with mortar. The best material for your crown depends on the style of home you have as well as other factors such as climate conditions in your area.

How Does Chimney Crown Repair Work?

Chimney crown repair mainly involves replacing damaged bricks, regrouting loose joints and resetting stones that are dislodged when there has been damage to the masonry structure underneath them. This process requires highly specialised tools and skills. You should contact a professional who understands how to handle these types of projects because they require attention to detail in order to blend the new materials with the existing brickwork.

How to Choose the Chimney Crown Repair?

Here are some of the factors that you should consider while choosing a chimney crown repair:

  • Adhesion to masonry and mortar.
  • Ability of crowns material to resist heating and cooling cycles, freeze/thaw cycle, weather conditions.
  • Resistance against fire exposure.
  • Weatherproofing qualities.
  • Ease of installation and good adhesion to flue tiles or bricks.
  • Temperature range and chemical resistance.
  • Resistance to UV light or weather conditions.
  • Ability of the chimney crown to provide a long lasting, excellent seal that is both watertight and airtight providing protection from wind driven rain.

Types of Chimney Crown Repair

There are two common types of chimney crown repair. Crown repairs can be done in one or both of these ways, depending on the damage to the chimney crown and what’s required for your home improvement project. The first type is a mortar patch that is applied over existing bricks with new mortar mix after removing loose brick particles from the damaged area.

The second type is a complete crown replacement. If your chimney has extensive damage to the brick, or if it’s too high up on the roof to be repaired with mortar patches, you may need to replace the entire crown rather than just repair it.

Benefits of Using a Chimney Crown Repair Kit

A crown repairs kit has several benefits, including:

  • It is easy to use. There are no special tools required for installation. All you need are the mounting screws and a drill/driver with bit set.
  • The materials used in making this product last longer than traditional mortar or fire cement. This means that your chimney will look better for longer periods of time without any further maintenance work needed at all! Another benefit is that it costs less money over time because there won’t be much repair necessary after installing it on your chimney crowns properly. If anything does happen to go wrong then simply remove using heat gun or scraper and reapply another one! Also, if not installed correctly then this product will not work. This is why we recommend that you hire a professional or consult with one on how to properly install the crown repair kit!
  • Not only does it look better and last longer but this product also protects your home from water penetration over time, which means less damage and clean up costs later on down the line as well. It actually works like an armor for those who own chimneys because they are heavy-duty materials used in making them so there’s no need to worry about any of them breaking apart too easily either! They can withstand high temperatures (up to 1200 degrees Fahrenheit) without showing signs of cracking or falling apart at all , just make sure that you do follow manufacturer instructions when installing these kits perfectly though because they do not work well unless installed correctly!
  • Another major benefit is the fact that this product will help to keep your chimney liner cleaner for longer periods of time as well. It doesn’t allow much ash or creosote build up over time because it acts like a wall between both elements . The products used in making these kits are very sturdy and hard too, which means there won’t be any penetration onto your crowns at all either . This can become expensive if you hire someone out every couple years just so they can clean one small section on the exterior of your home! If anything does happen then simply remove using heat gun or scraper and reapply another one ! However, something always has to go wrong sometime and if your crowns get damaged then you should fix them because this product won’t do the job right unless they are in excellent condition to begin with!

How to choose the right Chimney Crown Repair?

To repair or replace crown? This is one of the important question. The rule of thumb should be to always go for reparation unless there’s a need for replacement because if you do it right, crown can last long and add value to your home. Crowns that are in good condition usually stand between 30 and 50 years while those that have been damaged will not last more than three years (and may require re-capping at some point). If your crown has cracks, loose mortar joints or missing pieces then it’s best done by replacing them with new ones instead of repairing them which would cost higher later on.

See also
How to Repair a Chimney?

Another important factor to consider is the type of material being used for your chimney crown. You don’t want a crown that won’t match with the appearance and design of your home. In most cases, brick or stone veneer are preferable because these materials have been proven to be durable over time plus they complement beautifully with any set up at home.

If you choose not to include numbers or bullet points in this section write:

  • Crown at home should be repaired rather than replaced.
  • When repairing crown, keep in mind the material used and its compatibility with your chimney structure.
  • If you are not sure about which type of Chimney Crown Repair to use consult an expert first!

Things to consider when choosing a Chimney Crown Repair

Your chimney crown protects your home from the elements and provides a strong foundation for additional features such as fireplaces, gas logs or even solar panels. A damaged or deteriorated crown means you need to take action before further damage occurs. Here are some factors that will help guide you through the process:

  • Factor #01: Location of Chimney Crown Damage ・Affects surrounding areas and potential loss in value ・Can lead to water leaks into the structure & interior restoration costs
  • Factor #02: Type of Structure on which Crown is Located ・Type of roofing material used (e.g., asphalt shingle) ・Structural soundness (e.g., rotted beams)
  • Factor #03: Crown’s Position on the Chimney ・Affects surrounding areas and potential loss in value
  • Factor #04: Existing Finish/Surface Condition ・Condition of existing finish (e.g., cracked, flaking) ・Need for re-finishing or replacement (e.g., need to match exterior paint color)・Existing surface material (e.g., tile, stone) ・Need for waterproofing
  • Factor #05: Amount of Crown Damage/Deterioration ・Extent of damage to crown ・Possibility that one area may be repaired instead of replacing the entire crown ・Amount of loss in value or need to restore surrounding areas.

Environmental Protection

Chimneys are designed to channel smoke and other gasses up, out of the home. So when they start leaking or sagging it can be bad news for everyone inside. That’s why crown repair is so important; its job is to keep your chimney in shape for proper ventilation. Crown repairs come in two forms: self-supporting (the entire surface needs replacing) and non-self supporting (just one part).

Safety Tips

  • Keep kids and pets out of the area. If they can reach, chances are they will mess it up or hurt themselves.
  • Wear protective gear including safety glasses to protect your eyes from flying debris if their is a lot of work being done on the structure above you.
  • Wear a dust mask to keep your lungs safe from any debris. This is especially important if you have sensitivities or respiratory problems.
  • Keep the area free of clutter to avoid accidents. The last thing you want is for someone to get hurt because they are tripping over something.
  • Treat ladders with respect. They are not to be leaned and secured properly when in use and they should never be used as steps or walkways around the area where you will working.
  • Wear gloves if possible so that your hands don’t get cut, scraped, burned etc… on any of the materials involved in this process such as concrete bags or other similar building supplies that might injure someone who is untrained in handling these items safely.
  • Do not work on a structure that has been damaged too badly to support your weight. This is an obvious one!
  • Call for help from professionals if you do not feel comfortable with the process or have any doubts about doing it safely. There are certain risks associated with this type of project and should always be handled by professional who can properly identify them and deal with them before someone gets hurt.
CHIMNEYRX Brushable Chimney Crown Repair, 2 Gallon
  • Fast-setting, Flexible Coating that Seals and Protects Chimney Crown Tops - Repairs Cracked Chimney...
  • Stops Chimney Water Leaks & Repairs Chimney Crown Cracks
  • Specifically Formulated to Repair and Protect Fireplace & Chimney Crowns from Water Intrusion
  • Covers Approximately 40 Square Feet per Gallon
  • Easy to Apply With a 3 Inch or 4 Inch Paint Brush, & Cures in 2-4 Hours

FAQs

How much does it cost to repair a chimney crown?

This depends on the extent of damage. You can expect labor costs around $500, but this will vary depending on your location and weather conditions. Material prices also depend largely where you’re located – concrete mortar is usually about 15% cheaper in large cities than rural locations because there are fewer suppliers nearby. A three-foot length of brick rope from a hardware store runs for about ten dollars, while stainless steel mesh or spiral bricks may run as high as fifty each! The average total price range comes down to between four hundred and five hundred dollars for most standard repairs without any major complications involved such as additional structural issues with the masonry that need to be addressed.

What is the difference between a chimney crown and mortar?

The crown, or lip of brick that sits directly on top of your masonry flue, protects the surrounding bricks from water damage as well as any debris or animals/insects that may try to make their way inside through cracks in the exterior walls. It’s made up entirely out of mortar – a mixture of cement powder and sand mixed with just enough water to hold it together without becoming too dry or wet. In general, professionals will recommend re-pointing this area every five years for maximum efficiency and safety! While you can choose to do this yourself if you have experience working with materials like these, we recommend hiring a professional to do it for you.

How much does mortar cost?

As far as pricing goes, this will vary based on your location and specific project needs. Some projects may require more mortar than others – if you have an old chimney with several missing or broken bricks, these need to be replaced before re-pointing the crown can take place! On average though, most homeowners spend around $150-$300 per linear foot of masonry they want repaired. This includes labor costs at about $50 per hour plus materials expenses which usually run around five dollars per bag or 50 pounds of premixed material depending on how skilled the contractor is at sourcing their own materials rather than having them delivered from a hardware store.

How long does a chimney crown repair take?

This depends on the extent of damage, but most professionals can have your masonry repaired and back to normal in about four hours! That being said, this doesn’t include additional time needed for materials delivery or cleanup after they’re finished working. In addition, if you plan on repointing your mortar yourself it may take between one and three days depending on how much area needs to be re-done. If choosing not to invest in new bricks when there are several missing from the surrounding structure though (three feet is usually a good benchmark) we recommend waiting at least two weeks before attempting any repairs so that the existing mortar has time to harden.

Where can I buy the materials needed for a chimney crown repair?

Most homeowners purchase their mortar and brick ropes from local hardware stores, but this is often more expensive than sourcing them through contractors who are able to get better deals on bulk orders! If you’re looking into doing it yourself though, we recommend checking with your municipality or county government first before purchasing any supplies in case there are regulations about putting up masonry work that needs to meet certain safety standards. Doing so could lead to fines if not completed correctly which will cost you even more money in the long run!

Conclusion

Chimneys are an essential part of any home because they protect homes from rainwater damage as well as animals or insects that might try getting inside through cracks in the exterior walls. This means it’s important to take care of chimneys regularly – especially when there are structural issues due to missing bricks which can lead them being unsafe for use! The crown, or lip on top of brick protecting surrounding bricks from water damage is made up entirely out of mortar – a mixture of cement powder and sand mixed with just enough water to hold it together without becoming too dry or wet. In general, professionals will recommend re-pointing this area every five years for maximum efficiency and safety!