10 Sneaky Signs of Water Damage

Water damage — two words that can strike fear into the heart of any homeowner. We've all heard horror stories of burst pipes, leaking roofs and flooded basements. But there are lesser-known signs of water damage that could be quietly wreaking havoc in your home.

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These signs can be sneaky and elusive, often showing up in unexpected places, such as where two siding panels meet. Look out for these subtle signs of water damage so you can spot potential problems before they become costly emergencies.

What Are Some Lesser-Known or Less Obvious Signs of Water Damage?

While your response to a flood will be relatively obvious, you can only respond if the problem is evident. Water damage is sneaky, but if you know what to look for, you can stop it from harming your home. Let’s look at 10 subtle signs that excessive moisture might be lurking in plain sight, disguised as everyday issues.

1. Mysterious Spike in Your Water Bill

Think of your water bill as a detective's clue to the problem. If you notice a sudden and unexplained increase in the cost of your water, it could indicate there’s a hidden leak somewhere in your home. Even a small, unnoticed discharge can add up over time, leaving its imprint on both your bank account and your walls. You may want to find the source yourself or, if you’re unsure, contact a reputable plumber.

2. Flaking or Peeling Paint

Flaking and peeling paint can be a sign of age, but it can also be due to moisture buildup. Water can cause paint to lose its adhesion, creating a bubbly and uneven surface. This is particularly evident in areas with excess moisture, such as bathrooms or near windows that may not close properly.

3. Musty Odor

Trust your nose if it detects an unusual or unpleasant odor in or around your home. Stale water causes mold growth, resulting in underlying damage to walls, ceilings and hidden corners. If you detect a persistent, damp or moldy odor in specific areas, even after cleaning, your nose is telling you there's a problem.

4. Warping or Buckling Floors

If you notice an unusual bounce or unevenness when you walk across your hardwood or laminate floor, it might be due to water. Excess moisture can cause floorboards to warp or buckle, disfiguring the normally smooth and level surface.

5. Stains on Walls or Ceilings

Stains are the signature sign of water damage. Brown, yellow or discolored patches on your walls or ceilings are clear indicators of a previous or ongoing leak. They’re caused by water seeping through the material and leaving its mark. Often, that water has already soaked the stone or wood behind, which could affect your home’s structural integrity if you don’t address it quickly.

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6. Lingering Discoloration

Sometimes, the effects remain, even after the water has dried. If you notice lingering discoloration on your walls or ceilings, it's a telltale sign that damage has occurred at some point. It's crucial to address the underlying issue to prevent further harm or mold growth. While cleaning mold helps, you shouldn’t assume it resolves the cause of the infestation.

7. Bubbling or Warping Wallpaper

If your wallpaper suddenly starts to bubble, warp or peel away from the wall, don't chalk it up to poor adhesive. Excessive moisture can compromise the integrity of wallpaper, causing it to detach from the wall surface.

8. Sticking Windows and Doors

If you notice doors and windows that once worked perfectly are becoming harder to open and close, it may be a sign of excess moisture. This can cause the surrounding wood to swell, making it difficult for windows and doors to function properly.

9. Cracks in the Foundation

Cracks in your home's foundation might seem like a separate issue, but they can be a sign of water damage. Excess water can weaken the foundation, causing it to fracture and shift over time. It's essential to address foundation issues promptly to prevent further damage. While homeowners can conduct many home repairs themselves, structural work should be left to the experts.

10. Unexplained Allergies or Respiratory Issues

Stale water doesn't only harm your home; it can affect the health of everyone living there. If you or your loved ones are experiencing unexplained allergies, respiratory issues or worsening asthma symptoms, it might be due to mold spores being released into the air.