Garage Flooding When It Rains

Lbluenieghbour on 04/04/2020 - 18:18

Hi guys so we are new owners of a house and just found out that our garage floods when there is heavy rain, we can’t figure out how the water is coming inside but our block is a north facing block and the rain tend to pour from the west side.

The water runs under the house and it seems to me that the garage is a basement garage due to the height being lower than the house. The water seems to pool on one side and doesn’t run down to the drainage system so it goes inside if we can get any suggestions that would be great!

Home & Garden

Comments

  • [Deactivated] on 04/04/2020 - 18:22
    +3

    Pics of inside and outside of affected side of house

  • bluenieghbour on 04/04/2020 - 18:25

    I’m new to this website how do I post pictures?

  • 87percent on 04/04/2020 - 18:26

    Are you new owners of a new house? Or are you owners of an old house?

  • Ocker on 04/04/2020 - 18:27

    Is the water just what is captured on your land or is there run-off from the footpath entering your block?

  • bluenieghbour on 04/04/2020 - 18:33

    https://imgur.com/a/fpBAL7Z images are uploaded here

    • D C on 04/04/2020 - 18:49
      +9

      Needs a trench drain: https://mybuilder-uploads.s3.amazonaws.com/2_thumb/624738_26…

      Don't tile or concrete right up to the house (I know, wasn't you), the water needs to go somewhere…

      • Hybroid on 04/04/2020 - 18:51
        +3

        This is the correct answer and solution. Drainage should have been installed but either previous owner was too cheap or contractor didn't advise them properly.

        Relatively easy to retrofit but going to cost you a bit to do as driveway needs to be dug up and pipe routed to a nearby stormwater pit. Get some quotes from local companies.

    • Melb69 on 04/04/2020 - 21:47
      +1

      If the drive up to the garage is falling into the entry then it does need a trench grate along the whole length of the garage entry as per what the others have said. They could saw cut the concrete for the new trench and hopefully repaint to match the edge for the existing concrete driveway part. Is there a downpipe near by as they will connect to storm water drain.

  • bluenieghbour on 04/04/2020 - 18:34

    this house is old not a new build

  • funnysht on 04/04/2020 - 19:35

    sounds like you need a trench but if you dont have the money maybe Glue-down garage door seal works

    • bluenieghbour on 04/04/2020 - 20:01

      I will go get a quote and see what they say thank you.

      • Travis J on 04/04/2020 - 23:23

        Interested to see how much they quote for the job.

  • oscargamer on 04/04/2020 - 19:43
    +1

    Is the extent of "flooding" as depicted in your photos?

    • Nugs on 05/04/2020 - 12:01

      yep, looks like Qld circa 2010
      .

  • bluenieghbour on 04/04/2020 - 19:55

    yes goes under the house

    • Ocker on 04/04/2020 - 20:14

      Yes, but it is rain causing your problem falling on your land and/or coming from an external source, eg the footpath and entering via your driveway?
      Regardless, a trench should have been installed in front of the garage door at the time of building

      • bluenieghbour on 04/04/2020 - 20:25

        external problem because It only comes from that side, water pools only in that spot and then ti seeps inside the garage from only the right side of the garage front

  • jiberz on 04/04/2020 - 20:11

    Can try cobraseal? Won't fix but it will likely improve.

  • whatthecrappin on 04/04/2020 - 20:50

    cant see the other side of the garage, but maybe if you just get a concrete cutter (they'll cut the strip into sections) in order to remove the concrete, install this from bunnings

    https://www.bunnings.com.au/everhard-easydrain-1m-channel-wi…

    leave the side uncapped and hopefully the water has somewhere to go? otherwise it could get complicated - pipe to a down pipe or evenworse another trench into a pit….water needs to go somewhere

  • dcuksuop on 05/04/2020 - 00:02

    MS Paint diagram please

  • Bob Svargis on 05/04/2020 - 08:37

    Inadequate drainage. Needs trench drain. Can cut into existing concrete. Messy job but I have done similarly and it's definitely worth it.

  • 82norm on 05/04/2020 - 09:36
    +2

    Definitely needs a drain grate as per picture. You can ring for a quote to get a channel cut by a concrete cutter. Don’t think it will be too expensive, nor is it a big job. Alternatively, hire a large angle grinder with a appropriate wheel (there maybe reo) and cut the channel yourself. The depth is probably 100mm deep. You just need to be confident with what your doing.

    You can then buy the grate at bunnings and install it yourself. If there is stormwater drain connect the grate to it with poly pipe, or run it to a pit. YouTube building a pit (it’s just a big bucket buried into the ground with blue metal gravel), the water will just run to it and soak into the surrounding area.

  • HeWhoKnows on 06/04/2020 - 17:17

    Call a plumber

  • 203132 on 08/04/2020 - 21:35

    Maybe this is worth a try

    https://www.weatherstop.biz/products/garage-door-seal-30mm?g…

    • bluenieghbour on 11/04/2020 - 15:50

      I might give that a go thank you for the tip

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