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  1. J

    Bridging over private drain in corner of foundations

    Hello. So currently I am excavating the foundations for a cavity wall garden office. Unfortunately my drain pipe runs at an awkward angle at the corner of where my foundations would be. My initial thought was to excavate the foundations deeper and pour the concrete below the pipe, and then...
  2. J

    Cost for cavity wall construction

    Looking to make a cavity wall for an outbuilding. It’s around 500 blocks and 450 bricks, with 50mm PIR in the cavity. Straight forward square building. How much am I looking at for labour if I source the materials myself?
  3. J

    Concrete Blocks above Engineering Bricks

    Hi everyone, first post here. I'm in the process of designing a garden hobby room which is to be built using a cavity wall. My initial idea was to construct it entirely from concrete blocks (considerably cheaper), however I have read here that engineering bricks are better around the DPC and...
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