Drip... drip... drip. The ominous dripping from the upstairs bathroom. What should you do?! Don't panic - start fixing!

Steps

  1. 1
    Check the waterproofing. The major reason for leaking bathrooms is poor waterproofing prior to tiling. This is especially the case for older homes where waterproofing products weren't as good as they are nowadays. However, it can still be a problem for modern homes if the application was sloppy.
  2. 2
    Run one fixture at a time. Try to find which bathroom appliance might be the source of wet patches or drips (shower, bath, toilet).
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  3. 3
  4. 4
    Get a plumber. If you find leaking pipes, get the plumber as soon as possible. Unless you're fully trained in plumbing, leave this one to the professionals to fix. Having a plumber do an inspection will also help you to know whether or not you need to go to the expense and trouble of lifting off all the tiles and waterproofing and re-laying them!
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Community Q&A

  • Question
    All of my fixtures (tub, sink, toilet) cause a drain leak, but I have no idea where the pipes are routed. How do I determine where the leak is before I tear out parts of the plaster ceiling or hardwood flooring?
    Community Answer
    Community Answer
    You could get a cable or inspection camera, but, you'll probably have to tear out something to fix it. If you are unable to do this yourself, call a plumber.
  • Question
    Why do I hear water running if my water main is shut off?
    Community Answer
    Community Answer
    You may have a leak under a basement slab. Or, a toilet fill valve could be in need of replacement.
  • Question
    When I shower downstairs, water also comes out of the upstairs shower. When the washing machine in the basement is on, water comes out of that same upstairs shower. How is that possible?
    Community Answer
    Community Answer
    it could be a bad mixing, balancing or anti-scald valve in that upstairs shower. You should call a plumber immediately.
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Things You'll Need

  • Flashlight
  • Saw or similar item for cutting a hole
  • Plumber's contact details

About This Article

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, volunteer authors worked to edit and improve it over time. This article has been viewed 68,360 times.
56 votes - 62%
Co-authors: 4
Updated: September 16, 2021
Views: 68,360
Categories: Water
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