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Tuckpointing: new mortar, same chimney
Mortar is designed to weather so brick does not. After decades of Pacific Northwest rain, the joints erode into channels, and every channel is a water path into the stack. Repointing grinds the failed mortar back to sound material and repacks the joints fresh. Done on time, it is the single highest-value maintenance a masonry chimney gets.
Why the mortar mix matters
Old brick was laid with softer lime-rich mortar. Modern bagged mortar is much harder, and hard mortar against soft old brick makes the brick take the movement stress and shear at its edges. The cheap repoint with the wrong mix quietly converts a mortar problem into a brick problem. We match hardness and color to the original, so the repair works mechanically and disappears visually.
The process
Joints get ground or raked to sound depth, cleaned, dampened, and repacked in lifts, then tooled to match the original joint profile. Weather matters: fresh mortar needs a workable window to cure, which this climate provides most of the year outside the hardest winter weeks. You get before and after photos of the worked faces.
Common questions
What is the difference between tuckpointing and repointing?
In everyday use around here the words mean the same job: renewing failed mortar joints. Strictly, tuckpointing is a decorative two-tone version of the craft. Either way, the work that matters is sound joints at proper depth.
How often does a chimney need repointing?
A quality repoint in this climate is typically good for decades. The schedule depends on exposure: west and south faces, and homes near open water, weather faster than sheltered stacks.
Can I repoint a chimney myself?
Surface patching is within reach of a careful homeowner, but ladder work at roofline height with grinders, plus mortar matching, is where the job earns professional pricing. Wrong mix or shallow packing fails quickly and hides the damage while it does.