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Large crack in garden wall

  • 29-06-2021 3:43pm
    #1
    circadian
    Registered Users, Registered Users 2 Posts: 7,222 ✭✭✭


    Hi all,

    Spotted a large crack in the mortar between blocks in our garden wall. Runs all the way from the top to the bottom in a diagonal zig-zag type line. Wall is a little wobbly as a result.

    What's the best course of action to fix this? Would I be better off getting a bricklayer in to pull down the section and rebuild or would it be easy enough to do myself?

    I've built walls, I've smashed walls but I've never had to take down a wall to rebuild it so I get the feeling it's not quite as easy as I'm thinking.

    Anyone got any experience?


Comments

  • #2
    Calahonda52
    Registered Users, Registered Users 2 Posts: 12,888 ✭✭✭✭Calahonda52


    have seen folk build piers and tie it in, rather than knock..sometimes with channel iron bolted through the wall
    Is it a shared wall?
    You also need to figure out the why, foundations may need redoing as well

    “I can’t pay my staff or mortgage with instagram likes”.



  • #3
    jack of all
    Registered Users, Registered Users 2 Posts: 2,376 ✭✭✭jack of all


    I had to repair my own garden wall earlier this year, similar zig zag cracking as you describe. I dug down to expose the concrete strip foundation which was good and wide with no signs of cracking. I bored a hole into the foundation drove in a length of rebar and built up a pier using hollow blocks, dropped over the rebar, tying back the blockwork pier to the wall with galv steel straps (wall plate straps), turned down into the hollows. I filled the voids with concrete as I went, adding on new sections of rebar as I progressed up out of the ground, tied in place etc. Near the top of the wall I bent a length of rebar to turn back into the existing wall (hole bored in wall to receive same). Job turned out well and the wall was notably strengthened when rapped with a hammer. It all depends on how bad the wall is, my wall wasn't in any danger of falling down but I didn't want it to get any worse over time either.


  • #4
    Mac-Chops
    Registered Users, Registered Users 2 Posts: 314 ✭✭Mac-Chops


    jack of all wrote: »
    ...tying back the blockwork pier to the wall with galv steel straps (wall plate straps),

    Did something similar recently tying an old wall in to a new wall.

    I found these really handy for the same idea: WALL STARTER KIT


  • #5
    circadian
    Registered Users, Registered Users 2 Posts: 7,222 ✭✭✭circadian


    This is great stuff, can't believe I didn't think of reinforcing it. Not afraid of it coming down any time soon but don't want it getting worse, the wall is at least 40 years old according to neighbours and the old couple behind us have beds up against it so I'd say that's having an affect.


    I'll be doing major work on the house in a few years so the wall could be added to the list, reinforcing until then would suit me. I'll try the rebar method with tie-ins. Should do the trickd.



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