Leaky pipes can be a homeowner’s worst nightmare. Caught early on, a leak can be handled quickly before it does major damage to your home. If a leaky pipe isn’t discovered, it can create a build-up of water that could wreak havoc on your home and lead to costly repairs. They can also pose a threat to your health, creating mold that could help spread disease and turn your home into a toxic environment.

We’ve handled our fair of leaky pipes over the years. Our Boydco Plumbing professionals know how to fix a leak, and have been trained to spot all the warning signs of a sprung leak. Here are some symptoms to look out for.

Mold or Mildew

One of the biggest tell-tale signs of a leaky pipe is the presence of mold or mildew. Mold thrives in dark, wet areas, and a leaky pipe in your walls or beneath your flooring provides a perfect breeding ground for mold to spread through your home. While it’s natural for a little mildew to occur in a place where water accumulates, if you see mildew in areas where there isn’t much water (like non-shower bathroom walls) that can be a cause for concern.

Condition of Your Pipes

If you have exposed pipes, check them regularly to be sure they aren’t leaking. If you see signs of rust, buckling, or drops of water frequently forming on the surface of the pipes, something could be wrong with your pipes.

Related: The Signs of Pipe Damage

Streaming Water

If you see water streaming outside your home, that is a major warning sign for leaks. Make sure the leak is originating from your house; it’s possible that the stream could be coming from your neighbor’s home.


If you hear a hissing or rumbling noise coming from the water main — the point where the pipe enters the home — it’s something you should investigate. That noise could be the sound of water exiting the pipe between your home and the city water main. You should only hear noise coming from your pipes when water is being used in the house.

Wallpaper and Paint

Another sign of leaky pipes is blistering paint or wallpaper on your walls. Moisture from your pipes can eliminate the bond between your wall and paint or wallpaper, causing the surface coat to rise from the wall and fall to pieces.

Damaged Walls

If you have walls that are stained or warped for no reason, that could be a sign you have leaky pipes. Other signs to pay attention to are crumbling drywall and a sagging ceiling, which are both signs that the leak is spreading and impacting more and more of your home.

Ceiling Stains

If you see water stains on your ceiling that are copper colored, brown or dark, that can be an indicator of a serious leak.


Water that accumulates over time and doesn’t get dealt with develops an earthy, musty smell. Follow your nose: If something in your home smells wrong and the smell persists, that could mean you have trapped water inside your walls.

Related: How To Prevent Water Damage

Worried your house may have a leak? Call Boydco Plumbing to get your home inspected. We can be reached at 602-335-0323.