All mold types need an organic food source like cellulose to survive, therefore, there are several mold types that can appear on and within your walls. You should look out for the following types of mold on your walls:
• Black mold on wall
• Green mold on walls
• Blue mold on wall
• Yellow mold on wall

It is obvious when mold appears on the visible side of the wall, but the signs of mold behind the walls are more subtle. Recognizing the signs of mold on and within your walls will allow you to act quicker and help prevent more significant damage.
The following are the signs of mold on the walls:
• Mold growth on walls
• Mildew smell in walls
• Stains or dark spots in visible side of wall
• Bubbling of the drywall
• Peeling wallpaper
• Soft drywall
The damage from mold growth on and within the walls can be extensive and lead to significant structural damage. Make sure to call us at (888) 915-7197 to be put in touch with a mold remediation professional.

Drywall is already susceptible to mold growth because it contains cellulose which is a major food source for mold. When drywall is affected by excess water or moisture, mold growth can appear on and within the walls.
The following are the main causes of mold on the walls:
• Humidity and condensation
• Water leaks from the roof or burst pipes
• Overflows or leaks from plumbing fixtures and appliances
• Flooding
• Poor ventilation
Mold growth on your walls will spread quickly as it eats away at the drywall which can eventually cause structural damage. This is why you need to call a mold remediation professional once you find mold growth on your walls.

The cost to remove mold from drywall ranges from $1000 to $12,000 to depending on the extent of the damage and the type of mold. The cost will be much higher if the mold growth started behind the wall and has affected the drywall, insulation, wood beams, and wallpaper as these materials may have to be removed and replaced.

Homeowner’s insurance can cover the cost of removing mold from the walls if the mold was caused by a covered peril. This may include burst pipes, appliance malfunctions, plumbing leaks, and overflows that have created the conditions for mold to grow. When insurance does cover mold removal, there is usually a maximum limit on what they will cover. Additional mold coverage policies increase what insurance will cover.

Homeowner’s insurance will not cover mold removal from walls if the mold was caused by neglect, including poor ventilation or leaks that have not been fixed. Typical insurance policies do not cover mold caused by flooding or water damage from outside the home as this would require a separate flood insurance policy.

As discussed above, mold can cause considerable damage to drywall if the problem is not quickly addressed. However, if you find visible mold on your walls before it has spread and taken hold, you may be able to remove it yourself. You should call a professional if the mold has spread beyond an area of 10 square feet.
You can remove mold from the drywall with the following steps:
• Stop the moisture: Mold typically appears on walls when there is a moisture source like a leak. Find and fix the moisture source to prevent further mold growth.
• Protect yourself: Use protective gear including safety goggles, gloves, a mask, and long sleeves and pants.
• Determine if the drywall can be saved: If the drywall is soft to the touch and may have lost some of its structural integrity, it may be better to remove and replace the drywall. If the drywall is mostly dry and still structurally sound, you can clean the mold from the surface.
• Vacuum the wall: Using a vacuum with a HEPA filter, vacuum the mold spots on the wall to remove the spores from the surface.
• Kill the mold: To effectively kill and remove the mold, you should use a 2:1:1 mixture of baking soda, white vinegar, and water respectively, or 3% hydrogen peroxide. Bleach is not a good option for drywall because it does not penetrate the surface to kill the mold within the materials. Spray the solution you choose on the spots and let it sit for 10 minutes before scrubbing with a medium bristled brush. Then wipe away remaining residue.
• Dry the wall: Set up a fan and point it at the affected spot to dry the wall.