Chimney mortar repair done joint by joint in The Roads

If joint work alone will not fix the problem, we explain what else the chimney needs.

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Available for same-day service
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Family owned and run

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Mortar wear to mention when you call

Small holes and voids in the joints
Damp brick inside the attic by the chimney
Joints on one face far worse than others
Thin mortar smeared over old joints

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From raking to tooling, the repointing sequence

Tooling joints when the mortar is thumbprint hard

The final layer of mortar is tooled once it reaches what brick industry guidance calls thumbprint hardness. A thumb pressed into it leaves a print without mortar sticking to the skin. Tooling at that stage compacts the surface and seals it against the brick.

Tooling too soon drags wet mortar across the brick face. Tooling too late leaves the surface poorly consolidated. We work along the chimney in sections so each area is tooled at the right time, which also helps the joints dry to an even color.

Earlier repointing that fell out of the joints

Strips of mortar lying on the roof are a common sign of repointing that did not last. Federal preservation guidance links this to poor joint preparation, where new mortar was laid into joints that were too shallow to hold it.

We look at what remains of the earlier work and how deep it went. The failed layer comes out and the joints are raked properly before refilling. If the old repair was sound but water is still reaching the joints, we look for that cause before repeating the work.

Joint work as a craft apart from bricklaying

A point from the brick industry's maintenance guidance is worth knowing. A good bricklayer is not automatically a good repointer. Raking without damaging edges, matching mortar and tooling at the right moment are skills of their own.

That is worth asking about when you compare proposals. Ask who does the joint work, how head joints are cleared and how the mortar is matched. We answer those questions directly, and the written estimate describes the method so you can hold us to it.

A few details help us plan. Tell us which side of the chimney looks worst, whether you have seen grit or mortar pieces and whether water shows inside after rain. Mention any earlier repointing or coatings you know about.

Describe how the roof can be reached and whether an appliance vents into the chimney. You do not need exact answers. A rough history points us to the right faces and saves time during the free inspection. Anything you remember about past repairs is useful.

What your tuckpointing estimate lists

Pre-hydrated mortar placed in thin layers
Tooling at thumbprint hardness
Separate lines for crown or flashing work
Written record of faces and joints renewed

Your chimney tuckpointing questions

Will the new mortar match the color of the old joints?

We aim for a close match by choosing the sand and, where needed, a pigment, then comparing samples wet and dry against the existing joints. New mortar often looks brighter at first and settles as it weathers.

Does tuckpointing stop water getting into the chimney?

It can, when open joints are the path water takes. Water also enters through the crown, cap, flashing or cracked brick. We explain what the joints contribute, and when this job calls for a hose water test we tell you why.

Can you match a joint profile that has worn away?

We look for sheltered spots where the original profile survives, such as under the crown overhang. Where brick edges are worn, the new joint may sit slightly back from the face to avoid a thin, fragile edge.

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Family owned and operated in Miami, Florida.

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Chimney & Fireplace Brands We Work With

DuraVent
Olympia Chimney and Venting
Copperfield Chimney Supply
Rutland
Heatilator
Heat & Glo