Chimney mortar repair done joint by joint in Olympia Heights
Chimney mortar repair for homes in Olympia Heights, planned joint by joint from the inspection.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Chimney mortar damage worth a closer look
- Mortar eroded back from the brick face
- Mortar pieces on the roof around the stack
- Joints on one face far worse than others
- Water inside after rain on one side
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Repointing chimney joints the careful way
Mortar chosen under the masonry mortar standard
Mortar for masonry is classified under the ASTM standard for unit masonry mortar. Brick industry guidance on mortar selection says no single mortar is best for every purpose. The right choice depends on the brick, the exposure and the job the joint must do.
The same guidance recommends the lowest compressive strength that meets the project's needs. For repointing, that usually means a mix that is workable, bonds well and stays softer than the units. We explain which class of mortar we plan to use and why it suits your chimney.
Clearing the vertical head joints by hand
The short vertical joints between bricks are called head joints. Federal preservation guidance says mechanical tools should not be used on them, because a slip cuts into the brick above or below. Brick industry guidance adds that a grinder cannot reach their full depth anyway.
We clear head joints with a chisel. The remaining mortar is taken out to the same depth as the long bed joints, so the finished joints match. It is careful work, and it is one of the places where a quick job and a good one differ most.
Why repointing mortar is mixed drier
Mortar for laying brick is wetter than mortar for repointing. Federal preservation guidance explains that a drier mix is cleaner to work, packs tightly into the joint and cures with fewer shrinkage cracks. Brick industry guidance describes a similar consistency.
A wet mix smears across the brick faces and slumps in the joint. We aim for mortar stiff enough to press firmly into place. If you watch the work, it looks slower than bricklaying, and that is intended. Packing a stiff mix well is what makes the joint dense.
Recurring white deposits and hidden water
White deposits on brick are left behind as water dries out of the masonry and carries soluble salts to the surface. The maintenance guidance from the brick industry says deposits that keep returning deserve scrutiny, because they point to water that is still getting in.
We treat recurring deposits as a sign to look for the water source before repointing. Failed joints can be part of the path, but so can the crown, the cap or the flashing. Repointing is planned once the likely source is understood, so the new joints are not soaked the same way.
What we check before quoting repointing
- Scrape test of suspect joints
- Joint dampening before new mortar
- Curing care for the new joints
- Plant growth cut back from the joints
Tuckpointing questions from homes in Olympia Heights
Do you use power tools to remove old chimney mortar?
Hand tools are the least likely to damage brick edges. Power tools can help on some horizontal joints in skilled hands, but head joints are cleared by hand. We explain the method before work starts.
Will you repoint the joints inside my firebox as well?
Firebox joints use refractory mortar and belong to firebox repair, a separate service. Chimney tuckpointing covers the exterior masonry. If both need work, each is priced on its own line so you can decide.
Why did earlier repointing fall out of the joints?
Shallow preparation is a frequent reason. When old mortar is not raked deep enough, a thin skin of new mortar has little to grip. A mix that is too hard, or water still entering the wall, can also cause it.
More Ways to Care for Your Fireplace
- Chimney Liner Installation and ReliningPlan a compatible chimney liner installation with the existing passage, connections and maintenance access considered together.
- Hurricane and Storm Damage Chimney RepairAssess storm-related chimney concerns and distinguish temporary protection from permanent component repair.
- Gas Fireplace Repair and ServiceGet a model-specific gas fireplace service plan for the fault you are seeing or the maintenance your unit needs.
- Chimney Animal RemovalAssess occupied chimney openings and plan appropriate follow-up cleaning or entry protection.
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Local service. Careful repairs. A fireplace worth coming home to.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo