Signs of Water Damage that Indicate Previous Flooding

If you are moving into a new place or you are just concerned that there are problems building underneath the surface on your property, then it’s a good idea to check for old damage. One of the things you should look for is past flooding. 

A flood service should be able to help you find the right indicators of water damage and past flooding, but it’s also a good idea to know the signs yourself. 

Water Stains

One of the most obvious signs of previous flooding is a water stain. On wood, this will make the area appear darker and even still wet. Alternatively, it can also make certain wood frames look bleached over time. 

On plaster and drywall, water stains will look like discolored stains. This can be splotches on the flooring or the ceiling or a steady mark on walls where the line of flooding may have hit. If the material is dark and brownish yellow, it has been exposed to water damage.

Wood Rot

Wood can be a major indicator of water damage based on its condition. With long-term exposure to water, wood will start to rot. You may see some fungal growth on the wood, along with moisture and holes. You may also feel the structure and see if it’s more malleable than it should be.

Treated lumber is more resistant against wood rot, so if it has rotted, then the water damage may have been extensive. 

Mold and Mildew

Check corners both by the flooring and on the ceiling. Even the walls can get affected by mold and mildew growth. These take time to develop, so any growth means that there are still persistent issues or the initial problem was never treated. 

Mildew is more powdery and gray, whereas mold is fuzzier and can be green, red, blue, white, or black. Mold is more problematic as it can be very toxic.


This basically means that there are mineral deposits showing up on the surfaces of concrete and masonry. It happens when salt from water dissolves and forms a residue due to moisture and water infiltration. 

If flooding is not dealt with quickly, it will result in these deposits because of saltwater seeping into the foundation.


Consider cracks in the property’s foundation. Though they may be caused by other factors, they can also occur when water violently pours in. Any large volume of water can create such damage for flooring that wasn’t built to withstand it. Check the placement of these cracks and then see if any other signs of water damage are present.


If certain metals in the home are rusted, this can be proof that they were exposed to long-term water submersion. It can also be caused by a damp environment. Look at door hinges, metal fixtures, nails, and the like.


Water damage can be very problematic for a home. It can affect the structural integrity of the property and even be the cause of various health risks. It’s best to investigate it so you can bring this up to the right parties involved. It’s also essential to get water damage restoration done before problems get worse.

If you’re looking at a flood-prone location, keep an eye out for these signs and get the place checked if you suspect water damage.

Restoration Masters is a full-service restoration expert for both residential and commercial properties. Reach out to us for dependable, quality, and certified water damage repair in Lancaster, CA. We can be there in just 60 minutes—contact us today!

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