Can water damage in walls make you sick?

Author: Eloy Jones  |  Last update: Tuesday, November 11, 2025

Mold and bacteria can form even in the slightest cases of water damage. If this water damage is hidden, it can spread throughout your ventilation system and put you and your employee's health at risk. Mold can also multiply after water damage and create dangerous variants, including black mold and aspergillus mold.

Can wet walls make you sick?

If you have damp and mould in your home you're more likely to have: respiratory problems. respiratory infections. allergies.

Is it safe to sleep in a house with water damage?

Sleeping in a house with water damage is not safe because it exposes you to various health risks. These include respiratory issues, allergies, infections, and the potential for accidents due to weakened structures.

What are the symptoms of mold from water damage?

What are symptoms and effects of mold exposure?
  • Nasal and sinus congestion.
  • Eye irritation, such as itchy, red, watery eyes.
  • Wheezing and difficulty breathing.
  • Cough.
  • Throat irritation.
  • Skin irritation, such as a rash.
  • Headache.

Can mold behind walls make you sick?

It irritates the nose and throat, which can lead to both sneezing and coughing as your body tries to get rid of the irritant. Inhaling mold spores can also trigger coughing in people with allergies or an asthma attack, for those with asthma.

Black Toxic Mold Hidden In Your Walls? You Need To Do This

What does mold toxicity feel like?

Persistent Respiratory Problems

One of the most common warning signs of mold toxicity is persistent respiratory issues such as coughing, sneezing, and difficulty breathing. If you or your family members experience these symptoms, especially when at home, it could be a sign of mold presence.

How to tell if mold is behind drywall?

Musty Smell

If you think there's mold in your walls, get on your hands and knees and smell the electrical outlets. This might sound silly, but it may help you sense mold if it's growing within walls. Outlets have better access to the area behind the walls. Thus, smelling them can help identify the mold problem.

How long does mold sickness last?

For most people symptoms will go away in 1 to 3 days, assuming their exposure is limited and the mold is cleaned up/avoided. If your symptoms persist or worsen, it would be a good idea to visit your doctor. They can prescribe an allergy medication or provide other treatment ideas to make sure you are feeling better.

How to tell if your house is toxic?

If you suspect your asthma worsens or is more severe than usual, contact your doctor or medical professional.
  1. Bad Smells In The Home. When there's a bad smell in the home, you can tell. ...
  2. Peeling Wallpaper. ...
  3. Spots On The Wall. ...
  4. Bad Allergies Won't Go Away. ...
  5. Visible Mold Growth. ...
  6. Past Water Damage.

How to tell the difference between black mold and water damage?

Water damage usually looks like pooled water in yellow, orange, or brown stains while mold comes in darker shades like black, green, blue, or grey. In addition, water damage causes bubbling, buckling, warping, or peeling of surfaces. Mold appears fuzzy and slimy and smudges when touched.

Does insurance cover water damage in house?

Under most standard home insurance policies, if water damage occurs suddenly or accidentally from a source inside your home, such as a busted pipe, it will likely be covered by your homeowners insurance. If the water comes from outside your home, it will not be covered by your standard policy.

How bad is water damage to a wall?

Water can cause significant damage to your home, including mold and mildew growth, wood rot, and structural irregularities. If you have water damage on walls or ceilings, it is important to take action immediately before it worsens or causes very serious structural damage.

Is it bad to sleep in a room with wet walls?

Exposure to a damp bedroom environment can precipitate health risks including allergies, asthma exacerbations, respiratory problems, and a heightened risk of infections in the airways. Dealing with issues related to dampness and mould is crucial for averting these possible adverse health effects.

Can wet drywall make you sick?

Mould Growth

It can cause health problems or exacerbate existing ones, such as allergies, asthma, or other respiratory problems. Mould reproduces by producing spores, which need water to start growing. When the drywall is exposed to water, mould spores may start growing in it.

What are the symptoms of mold in your lungs?

Symptoms of aspergillosis include:
  • shortness of breath.
  • a cough – you may cough up blood or lumps of mucus.
  • wheezing.
  • a high temperature.
  • losing weight without trying.
  • feeling tired.

How do I know if damp is making me ill?

Damp and mould predominantly affect the airways and lungs. The respiratory effects of damp and mould can cause serious illness and, in the most severe cases, death. The respiratory effects include: general symptoms such as cough, wheeze and shortness of breath.

How do I test if my house is making me sick?

If you want to monitor your indoor air quality proactively, you can invest in an air quality monitor. This will help you test if your house is making you sick. These devices constantly check the indoor air quality and provide feedback about the levels of different pollutants.

What are the symptoms of toxic house syndrome?

Building occupants complain of symptoms associated with acute discomfort, e.g., headache; eye, nose, or throat irritation; dry cough; dry or itchy skin; dizziness and nausea; difficulty in concentrating; fatigue; and sensitivity to odors.

What are the 10 warning signs of mold toxicity?

However, some common signs that may indicate mold exposure include: Coughing, wheezing, shortness of breath, nasal congestion, and frequent sinus infections. Rashes, itching, burning sensations, and persistent skin irritation.

How do you check yourself for mold poisoning?

Urine mycotoxin tests are ideal for testing yourself (and your family members) for mycotoxin exposure. They're absolutely painless, totally non-invasive, and incredibly easy to use.

What are the three stages of mold toxicity?

Mold can make you sick in 3 ways (1) allergic reaction (2) Invasive fungal infection (3) Mycotoxin poisoning.

Is there a way to check for mold without opening walls?

Dip a clean cotton swab into a diluted bleach solution and dab it on your wall. If the area brightens after a while, it is mold. Dirt/dust won't react with bleach. It is mold if you smell something earthy, damp, or musty.

Does homeowners insurance cover mold?

Homeowners insurance doesn't usually cover mold damage or removal unless it's the result of a covered peril. If the mold in your residence was caused by something sudden or accidental, such as a bursting pipe or some other covered incident on your policy, you may be protected.

What are symptoms of black mold exposure?

The most common symptoms of black mold exposure include:
  • Sneezing.
  • Coughing.
  • Nasal congestion.
  • Postnasal drip.
  • Red eyes.

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