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Tuckpointing for chimneys in Sunset

Chimney repointing in Sunset, priced upfront with no hidden fees and recorded in writing.

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Signs the chimney joints need repointing

  • Mortar eroded back from the brick face
  • Joints that crumble when scraped
  • Mortar pieces on the roof around the stack
  • Caulk pushed into open joints
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Repointing chimney joints the careful way

Finding the water before renewing the joints

Federal preservation guidance is clear about repointing alone. The cause of the deterioration has to be dealt with first, or the new mortar wears out the same way. On a chimney that cause is often water from somewhere above.

We check the crown, the cap, the flashing and the brick faces before proposing joint work. If one of them is feeding water into the masonry, we explain it and price it as a separate item. Repointing then protects a chimney that is no longer being soaked.

Dampening joints without leaving standing water

Dry brick draws water out of fresh mortar too quickly, which weakens the bond. Both federal preservation and brick industry guidance call for damp joints before repointing. They also warn against standing water, which thins the mortar at the surface.

We wet the joints and let the brick take up the surface water before packing. The aim is a joint that feels damp but shows no film of water. On a warm day that step may need repeating as the work moves along the chimney face.

Joints on the stack above the roofline

Above the roofline, a chimney stands in the open with no wall or eave to shelter any face. Brick industry maintenance guidance notes that chimneys, caps and copings face harsher exposure than ordinary walls. Their joints can need attention sooner as a result.

When we inspect, the stack above the roof gets the closest look. Joints there can fail while those lower on the chimney are still sound. We explain whether the repointing should focus on that section and price it separately from any work lower down.

What changes the size of a repointing job

Repointing jobs vary a great deal. How many faces are involved and how deep the failure runs both change the work. So do the hardness of the old mortar and what it takes to reach the stack above the roof. A sample area adds a step too.

We tell you which of these shape your job. Each area is priced upfront on the estimate. Should the work grow once raking begins, it stops at that point and we talk it through with you before anything extra goes ahead.

Joint repair items on a written estimate

  • Mortar chosen to suit the brick
  • Joint profile that sheds water
  • Cleanup and haul-away of old mortar
  • Mortar strength kept below the brick

Mortar joint repair answers

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.

What happens if you find damaged bricks while raking?

We stop and show you. A brick with a broken or flaking face cannot be fixed by the mortar around it. Replacing it is a separate item with its own price, and it is added only with your approval.

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.

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