How Long Does it Take for Mold to Grow Back After Cleaning? (Solved!)

Mold can start growing back as soon as 24 to 48 hours if the root problem of moisture isn’t fixed. Some remediation procedures can reduce that considerably but ultimately dampness in the mold-infested area must be fixed.

Will mold come back after cleaning?

It can come back after cleaning. Whether or not mold regrows depends on what was done to remove it and how the problem of moisture was fixed, according to the Environmental Protection Agency (EPA).

Mold must be removed, not just disinfected. Otherwise, it will regrow. You can also use a follow-up DIY treatment of spraying the area with vinegar to keep any fungi that may have been missed in the initial removal and cleanup.

However, you must fix the moisture problem to prevent future mold. That can mean fixing a leak or keeping the humidity level lower to keep mold from growing.

Why does it come back so quickly?

The EPD states that mold doesn’t need much to regrow in an area. It just needs water and a food source, which can be organic materials in your home. It also thrives in darkness so those parts of your home that don’t receive light are highly susceptible.

Where does mold really live? 

Mold lives on surfaces of organic items such as ceiling tiles, cardboard, wood products, wallpaper, fabric, drywall, carpets, plants, foods, insulation, and other types of natural items like leaves and straw.

Mold colonies then feed on this material, destroying it before expanding to other materials. They don’t go deeper but do expand and increase the damage as they do, according to the Federal Emergency Management Agency (FEMA).

How long do mold spores stay in the air after cleaning?

The spores from mold can remain in the air indefinitely. What is worse is they will gather on a damp spot and began growing within 24 to 48 hours. That makes it improve to fix any damp spots immediately after removing mold. 

Does cleaning mold get rid of it?

Cleaning mold doesn’t get rid of it. You can’t just spray a disinfectant over it and expect it to stop. Mold must be removed to remedy the problem. After that, you must fix the root cause of the dampness to keep mold from returning, according to FEMA.

What stops mold from coming back?

The ultimate method that stops mold from coming back is fixing whatever is causing the dampness in the first place. That can be waterproofing the area or encapsulation, which is the recommended option. 

You can kill off fungi that were left behind in the cleaning process by spraying vinegar on the area. This acid-based solution will kill 90 percent of the remaining mold on surfaces.

Can mold be completely removed from a house?

Yes, mold can be completely removed from surfaces of a home but they will still live in the air. Mold can become inactive if there is nothing to feed on but can become active again if dampness returns, according to home experts. 

The best way to stop mold is to prevent it.

Can black mold wipe off?

No, black mold can’t be wiped away. It must be removed properly to prevent it from returning. That means using a diluted bleach solution or professional mold cleaner and scrubbing it off. 

Trying to wipe the black mold off helps it grow faster as it adds dampness. The entire area needs to be thoroughly dried after cleaning to prevent mold from returning.

This advice goes for any type of mold, not just black mold. No mold can be wiped away but must be removed using chemicals like bleach or a professional cleaner,

How do you know when mold is gone?

You will know it’s gone when it doesn’t try to regrow. Mold can be visible so you will likely be able to see it. However, you will also know if it is growing in a hidden area if you keep seeing a spot that looks “dirty.”

Not only can you physically see any regrowth, but you can also test a prone area to see if there is any hidden growth. If a surface looks dirty without another explanation, take a swap and dip it in diluted bleach. Test it on the dirty spot. 

You will know it’s mold if the spot suddenly lightens.

Another way to know if mold has returned in hidden areas is if you scrub a dirty spot multiple times but it keeps coming back.

Does mold have to be removed professionally?

You can do small areas yourself in a DIY project but larger areas will require professional cleaning. A professional will go beyond the area of obvious mold and inspection other areas like walls, ductwork, and attics. 

You can buy a professional mold killer or dilute bleach using one cup of bleach to a gallon of warm water to remove the mold yourself. 

Take a hard-bristled scrub brush and scrub down the area. Make sure it dries by putting a fan on it afterward. Be sure to wear rubber gloves and a mask.

You also will want to vacuum the area to ensure that spores don’t remain after you removed them. 

How do you get mold spores out of the air?

The only way to remove mold from the air is with a HEPA (high-efficiency particulate air) air purifier or HEPA vacuum. These types of products have filtration systems that trap particles, like mold and allergens, rather than putting them back into the air.

Vents can be a problem as they provide a way for mold spores to travel throughout your home. It may be wise to check your vents and have your ducts cleaned regularly as well.

Does fresh air kill mold?

Yes, fresh air and sunlight work wonders to kill mold. Home experts said mold grows best in warm, damp areas like basements, crawl spaces, and bathrooms. Opening windows and doors after cooking or showering can help reduce the chances of mold growth.