How to Remove Mold from Crawl Space Yourself?

Can you smell a musty odor inside your home? It sounds like you’re dealing with a mold problem. These pesky fungi can make themselves home anywhere dark and humid. But where exactly are they hiding? Mold is naked to the eye but can multiply and become visible. Before it gets too late, you must look for them in places where they are commonly found, such as your crawl space. 

If you find mold in your crawl space, don’t fret; we’ve got the cure for cleaning mold in your crawl space. The following blog explores getting mold out of your crawl space yourself. We’ll cover what crawl space molds are and the signs to look for to identify them. In addition, we’ll also offer some treating mold in crawl space dos and don’ts to ensure you get rid of them. So, without further ado, let’s learn how to fix mold in crawl space.   

Understanding Crawl Space Mold:

Mold is a type of fungi. They are living organisms that thrive in humid environments, which “surprise, surprise” is what crawl spaces are generally like.

They live on a diet of dead organic matter, such as the wooden beam foundation running along the crawl space. They have a fast reproduction speed, as they can regrow in 24-48 hours after removal

That’s why it’s crucial you kill the mold in the crawl space. Otherwise, mold can damage your home’s foundation greatly, which wouldn’t be easy on your wallet. In addition, they are also a health hazard in your home, especially if you or your family members have mold allergies. 

Inspecting Your Crawl Space for Mold Growth

Signs of Crawl Space Mold:

Here are some common signs that you’re dealing with a mold problem in your crawl space:

  • Musty odor coming from your crawl space.
  • Allergy or Asthma flares up. 
  • Staining on baseboards.
  • A sudden increase of bugs and pests.
  • Wall discoloration.

How to Inspect Your Crawl Space?

Now, before you talk about how to remove mold in your crawl space yourself, let’s first research the tools required for mold cleaning in your crawl space:

Must-Have Protective Gear to Have During Mold Cleanup:

Your safety should be your top priority. As you will be crawling into your crawl space, you need to ensure that you wear protective gear. Here are some essential gear to have on hand:

  • N95 Respirator Masks
  • Protective Eyewear
  • Head Protection
  • Shoe Covers
  • Flash Light
  • Gloves

Inspecting Crawl Space:

nspecting Crawl Space

Mold Cleaning Tools and Materials:

Apart from protective gear, you also need cleaning tools to get rid of mold in the crawl space. Here’s what you need:

  • Trash Bags
  • Mold Cleaners and Disinfectants
  • Plastic Sheets
  • Duct Tape
  • HEPA Vacuum

How to Remove Mold from Crawl Space- A Step-by-Step Guide:

If you truly want to get rid of mold from your crawl space, the best way would be to call a mold remediation specialist. But if you want to go the DIY road, here’s what you can do:

  1. First, ensure that you wear the required protective equipment so that no areas of skin are exposed.
  2. Next, use the protective sheet and duct tape and seal the area from your home. Seal entry points in your crawl space to ensure the mold doesn’t breach the contaminated zone.
  3. Ensure there is ventilation by opening vents or using fans. This will help reduce moisture in your crawl space. You can also use a dehumidifier.
  4. After that, fix any leaks in your crawl space to prevent moisture from settling in.
  5. Spray the mold cleaner on the mold, making sure you are at a safe distance.
  6. Scrub the surface thoroughly and allow time to dry.
  7. Mold spreads through spores, so you must vacuum the area using a HEPA vacuum with a high-quality air filter. This will help trap spores to ensure no mold is left.
  8. Use a disinfectant to inhibit mold growth.
  9. Lastly, seek professional help for mold remediation. 

Cleaning Mold in Crawl Space – Dos and Don’ts:

While dealing with mold cleaning, you need to follow some do’s and don’ts. Let’s take a look:

Do Repair and Seal Gaps:

Ensure that there are no gaps between your crawl space and flooring. Otherwise, the mold spores can travel through the gaps and contaminate other areas.

Don’t Paint Over Mold:

Never paint over a mold. It won’t fix the issue; instead, it will make the mold harder to remove. 

Do Consult a Professional:

Always consult an expert before you take over cleaning mold in the crawl space. They know how to get rid of mold in crawl space more efficiently. 

Don’t Sand Moldy Surfaces:

Sanding the mold surface won’t fix the issue. It can worsen the problem as you might have to deal with spores released due to scraping. 

Final Note:

In conclusion, mold problems can be a hassle to deal with. They can quickly grow inside damp and dark places. If you aim to try DIY techniques, ensure you keep yourself protected now that you know how to remove mold in the crawl space by using the proper steps. 


  • How to Spray for Mold in Crawl Space?

To spray for mold in the crawl space, keep the cleaning spray at arm’s length from your face and mouth.

  • How to Remediate Mold in Crawl Space?

If you wish to remediate mold in the crawl space, then ensure that disinfectant and HEPA vacuum are used to clean mold spores so they don’t disperse and contaminate other areas. 

  • Will Vinegar Kill Mold?

Yes, vinegar is a natural mold cleaner. However, be sure to dilute it first, as it can cause staining. 

  • Does Baking Soda Remove Mold?

Baking soda can be an excellent mold remover for non-porous surfaces. 

  • Will Bleach Kill Mold in Crawl Space?

Bleach can kill mold; however, dilute it first as it can stain wood. 

  • What Temp Kills Mold?

Heat can kill mold. Most mold species don’t last above 71°C.

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