Chimney repointing and mortar repair across Ojus
We match color, texture and profile, and explain how new mortar weathers in.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Signs the chimney joints need repointing
- Sandy grit at the base of the chimney
- Gaps opening between brick and mortar
- Small holes and voids in the joints
- Joint profile worn flat or recessed
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Tuckpointing choices we talk through with you
Why no one mortar suits every chimney
Two chimneys that look alike can need different repointing mortar. One may be built of hard, dense brick and another of softer units that absorb water readily. The original mortar may be lime-rich or cement-rich.
Brick industry guidance asks that mortar be checked for compatibility with the units and the application, not picked from habit. We look at the brick and the existing joints before choosing. You hear the reasoning, so the mortar on your estimate is a decision rather than a default.
Clearing thin slivers of old mortar
After raking, thin slivers of old mortar can cling to the brick edges. Brick industry guidance says they must come off so the new mortar bonds to brick, not to a loose film. A sliver left in place can become a crack line later.
We check the edges of each raked joint before any new mortar goes in. Slivers are removed without chipping the brick. It is a small step that is easy to skip. It is also hard to spot once the joints are full, which is why the estimate mentions it.
Bagged masonry cement and softer brick
Premixed masonry cement is easy to buy and use. Federal preservation guidance notes that it produces strong mortar and generally contains a large share of portland cement. On softer brick, that strength can be the problem rather than the solution.
If an earlier repair used a hard bagged mix, the contrast often shows as bright, dense joints beside older ones. We check for damage along those joints. For the new work, we choose a mix to suit the brick rather than the most convenient bag.
Joints and washes at the chimney shoulders
Where a chimney narrows as it rises, the brick steps back in shoulders. Brick industry guidance on chimney construction prefers solid brick on those steps and notes that mortar washes there may not last as well. Water sitting on a shoulder can soak into the joints below.
We check the shoulders for cracked washes, open joints and exposed brick cores. Repointing the joints helps, but a failed wash or exposed cores may need their own repair. We explain the difference and keep each item separate on the estimate.
Mortar joint checks for homes in Ojus
- Water source notes before joint work
- Separate line for damaged brick units
- Separate lines for crown or flashing work
- Mortar strength kept below the brick
Chimney joint work, questions and answers
Is a stronger mortar better for my chimney?
No. Repointing mortar should be softer and more vapor-permeable than the brick, and no stronger than the original mortar. A mix that is too hard pushes stress into the brick and can damage its face.
Can I use the fireplace while the chimney is being repointed?
The work is on the outside of the masonry, but fresh joints are still curing. We tell you whether a fire is fine during the project and when normal use can resume, based on where we worked and the mortar used.
Can you repoint a chimney that has stucco over the brick?
Stucco hides the joints, so there is nothing to repoint from outside. Cracked or loose stucco belongs to stucco repair. If bare brick shows above the roofline, we can assess those joints as a separate area.
More Ways to Care for Your Fireplace
- Hurricane and Storm Damage Chimney RepairAssess storm-related chimney concerns and distinguish temporary protection from permanent component repair.
- Wood-Burning Fireplace Insert InstallationFit a wood-burning insert after assessing its host fireplace and full connection requirements.
- Fireplace Hearth RepairRepair the hearth surface after considering the supporting assembly and fireplace requirements.
- Top-Sealing Damper InstallationFit a top-mounted damper only after checking the fireplace, product restrictions and control route.
- Gas Fireplace VentingAssess and repair the gas fireplace vent arrangement using components suited to the identified system.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo