Waterproofing that protects chimney brick in Naranja
A yes to the treatment inside 72 hours of your free inspection means 10% off that work.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Signs the chimney brick is taking on water
- Chalky deposits drying on the brick face
- Brick grit collecting on the roof below
- Hairline gaps between brick and mortar
- Runoff streaks below the cap
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Chimney waterproofing in Naranja, from repairs to repellent
Siloxane and silane in plain terms
The repellents most used on brick are siloxanes and silanes, often blended. Both react with the silica in brick and mortar and change how the pores treat water. Water that would have soaked in beads up and runs off instead.
Siloxanes have larger molecules and suit most brick. Silanes are smaller and can reach further into dense surfaces. The right choice depends on the masonry in front of us and on the maker's data for each product. We name the product we propose and say why it fits your chimney.
Clean and dry masonry before treatment
A repellent works best on clean, visibly dry and absorbent masonry. Dirt, growth and old residues can stop it soaking in. Excess moisture in the brick reduces how deeply it penetrates and shortens how long it lasts.
Cleaning is chosen for the masonry, using the gentlest method that works. Harsh chemicals or high-pressure washing can damage brick and mortar. After cleaning, the surface needs time to dry before treatment. We explain the cleaning step and the wait in the estimate for your home in Naranja, so the schedule makes sense.
The crown has its own coating
The concrete or masonry top of a chimney sheds water from the flue outward. When it has fine cracks, a crown coating made for that purpose may be used. That is a different product from a face repellent, and it belongs to crown repair.
We check the crown as part of preparing for waterproofing, because the top has to be sound first. If it needs coating or rebuilding, that appears as its own item. The face treatment is then priced separately, and each has its own reason on the estimate.
Rain falling down the flue
Treating the faces of a chimney does nothing for rain that falls straight down the flue. That water lands on the damper and firebox and can soak the masonry from the inside. A cap over the flue is what keeps it out.
We check the top as part of every waterproofing assessment. If the flue is open or the cap is damaged, we list it as its own item. There is little point protecting the faces while rain pours into the middle of the chimney.
Brick repairs and treatment, itemized for approval
- Brick faces checked for flaking or cracks
- Roof junction flashing condition
- Sealant joints replaced and cured first
- Firebox and flue interior left out
Asked often about sealing chimney masonry
Is chimney waterproofing the same as painting the brick?
No. Paint forms a film over the masonry and changes its look. A penetrating repellent soaks into the pores, keeps liquid water out and lets vapor escape. On a chimney we recommend only the breathable kind, and the estimate names the product.
What about a chimney finished in stucco?
Some repellents list stucco as a suitable surface and others do not. Cracks, hollow areas and gaps around trim come first, because a treatment cannot bridge them. Where a different finish suits the stucco better, that work belongs to stucco repair, and we explain why.
What if an earlier coating is already on the brick?
We try to identify it and test how the surface responds. Some coatings stop a new repellent from soaking in, and a glossy film may be holding moisture. If the old coating has to come off, that is a separate item with its own method and test.
More Ways to Care for Your Fireplace
- Firebox RepairRepair the damaged fireplace chamber using an approach suited to masonry or manufactured components.
- Prefab and Zero-Clearance Fireplace RepairIdentify and repair manufactured fireplace components using the appropriate model information.
- Chimney TuckpointingRenew deteriorated mortar joints around chimney bricks that can appropriately remain.
- Chimney Liner Installation and ReliningPlan a compatible chimney liner installation with the existing passage, connections and maintenance access considered together.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo