filling the void under basement steps

Discussion in 'Hardscaping' started by DVS Hardscaper, Sep 17, 2009.

  1. DVS Hardscaper

    DVS Hardscaper LawnSite Fanatic
    Messages: 6,569

    Anyone have any good ideas / experiences for filling the void that occurs under outside basement steps?

    We have a potential client who has a hell of a void under her basement steps. Water is finding it's way to the void and is then seeping through her concrete wall. So she called us to do some grading work.

    Seems to me that flowable fill would be a perfect fix. But it seems we'd need to pump the fill through a hose to get it where we want it.

    Anyone have any experiences with backfilling under steps?

  2. wurkn with amish

    wurkn with amish LawnSite Senior Member
    Messages: 662

    What about 200 cans of expanding foam?
  3. ford550

    ford550 LawnSite Member
    from PA
    Messages: 221

    We pump in flowable fill. Then grade away. That is the sure way to end the problem. Don't try to fill it with soil or fill as you will never get the compaction and it will just settle again and leak.
  4. DVS Hardscaper

    DVS Hardscaper LawnSite Fanatic
    Messages: 6,569

    My thoughts as well. how does you get the flowable fill under the steps? Do they have a hose or something?

  5. zedosix

    zedosix LawnSite Silver Member
    Messages: 2,663

    Do you have any pictures Andrew of the site in question. I have pics of work we did under a bay window that may help.

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