If you’re looking at this product, you probably opened your crawl space, saw mold on the wood, and thought, okay… what’s the realistic way to deal with this myself?

Let me start by saying the obvious.

This is AJ with Crawl Space Ninja Supply and the most thorough way to remove mold from crawl space wood is soda blasting. That’s what we use on full remediation jobs. It physically strips the mold off the wood and leaves it clean. But that setup costs serious money and requires equipment most homeowners don’t have. Most DIY soda blasters just don’t have the power to do it right, so you end up spending time and money and still not getting the result you want.

That’s why, for DIY situations, we usually recommend Anabec Advanced Cleaning Solution instead. It’s the practical alternative when soda blasting isn’t realistic.

This is a ready-to-use, peroxide-based mold cleaner. It’s not an acidic or pesticide-style chemical. A lot of mold products on the market are extremely harsh and can be just as bad for your respiratory system as the mold itself if they’re misused. This one is non-acidic and works by reacting with organic growth and breaking it down so you can actually clean the surface.

If you’ve ever poured peroxide on something and watched it bubble, that’s the same reaction happening here.

Each bucket is 5 gallons. You’ll get roughly 1,000 square feet of coverage per gallon, so about 5,000 square feet of coverage per bucket, depending on how heavy the mold is and how you apply it. For most crawl spaces, one bucket gets the job done.

Now here’s the most important thing to understand about mold, and this is where a lot of people get misled.

Dead mold is still a problem.

Killing mold does not automatically make it safe. Dead mold is still an allergen. It can still affect air quality. It can still show up during a home inspection. If you just fog or spray and walk away, you didn’t really fix anything.

The goal isn’t just to kill mold it’s to remove it.

That means physically scrubbing, wiping, or HEPA vacuuming mold off joists, walls, and framing before or while you treat the space. The cleaner helps break it down and treat what’s left, but physical removal is what actually makes a difference long-term.

This is also why bleach isn’t ideal for crawl space mold. Bleach doesn’t penetrate porous wood very well. It tends to whiten the surface, which makes it look better temporarily, but it doesn’t do much for what’s underneath. On top of that, bleach requires long contact times to be effective and introduces harsh fumes into an already confined space. Even the manufacturers of bleach don’t recommend it for porous materials like wood.

That’s why most crawl space professionals don’t rely on bleach for mold treatment.

When it comes to applying this cleaner, you’ve got a few solid options. You can use a pump sprayer, an airless sprayer, or a fogger. Anything that sprays liquid will work.

The most DIY-friendly method is fogging. You can pour the cleaner straight into the Createch Commander Mold fogger, no mixing or dilution, set it in the crawl space, and let it run for about 30–45 minutes. Once it’s done, shut it off, open the crawl space door, and let the area air out for another 30–45 minutes.

If you want more control, you can suit up in a Tyvek suit with gloves and a respirator and walk the fogger through the crawl space, hitting the joists and heavier areas directly. It takes more effort but gives you better coverage where you need it most.

No matter which method you use, wear proper PPE and rinse out your sprayer or fogger afterward. This is a peroxide-based product, and you don’t want it sitting inside equipment long-term.

A couple of mold tips that matter more than the chemical itself:
If insulation in the crawl space is moldy or contaminated, don’t spray around it and put it back. It needs to come out. Mold can live in the paper backing and spores can get trapped in the fibers, which means you’re leaving the problem behind.
If moisture isn’t fixed, mold will come back. Cleaning without moisture control is temporary.
And if mold is still visibly sitting on the wood when you’re done, the job isn’t finished yet.

At the end of the day, if you had unlimited budget and equipment, soda blasting would be the cleanest route. Most DIYers don’t have that option, and that’s exactly where this product fits. It’s a realistic, widely used way to clean and treat crawl space mold when you don’t have industrial blasting equipment.

Use it with physical removal, fix the moisture issue that caused the mold in the first place, and you’ll be in a much better spot moving forward.

If you’re not sure how much you need for your crawl space or which application method makes the most sense for your setup, reach out and we’ll help you size it properly.