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enter image description hereI have a detached garage that is getting water leakage through the back wall. There are no leaks coming from the roof, in fact the roof was replaced within the last year.

The walls of the garage are cinder block, and there is cracking inside AND outside. Would repointing solve the water issues?

Separately, 2 companies contacted offered different approaches, and wondering how to chose between them.

The first company suggested repointing the outside walls where there are cracks. The second company suggested repointing the inside where there are cracks. Any advice on where to start

Thanks! enter image description here

enter image description here

enter image description here

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  • Is part of this wall below grade?
    – Machavity
    Dec 1, 2020 at 13:13
  • @Machavity - no.
    – ThisOldGarage2
    Dec 1, 2020 at 13:57
  • Some pics of the cracks (inside and out) would probably be useful. Broad view for context and a close up or two for the details.
    – FreeMan
    Dec 1, 2020 at 13:59
  • @FreeMan - I've added a few inside pictures
    – ThisOldGarage2
    Dec 1, 2020 at 14:56
  • Are there gutters or does the water run off the roof and down the outside of the walls?
    – Platinum Goose
    Dec 1, 2020 at 15:37

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Doesn't look like the roof has a proper overhang to minimize water running down walls. A gutter would help but the mortar on the outside really needs to be fixed. Fixing the mortar on only the inside will trap the water in the blocks and cause freeze and thaw issues.

The moss is bad for the mortar as well. Kill and remove it.

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