Skip to Main Content

Will Bleach Kill Crawl Space Mold?

Floor joist with mold in crawlspace.

In a previous article, we discussed crawl space mold and its causes.

This page answers the question, “Will bleach kill crawl space mold?ˮ

The answer is simple, so we wonʼt waste your time. Here’s what you need to know:

Will Bleach Kill Mold in a Crawl Space?

Mold on crawlspace wooden beam

The active ingredient in bleach, sodium hypochlorite, usually comprises only 3-5% of the solution and may not penetrate deeply enough to eliminate crawl space mold at its core.

Standard bleach solutions, predominantly water-based (typically 95-97%), can seep into porous surfaces like unfinished crawl space wood materials. This moisture may inadvertently create an environment conducive to fungal growth beneath the surface.

Similar limitations apply to household antimicrobial agents, like white vinegar and hydrogen peroxide, which cannot entirely eliminate mold and only address surface-level contamination.

How to Remove Mold in a Crawl Space DIY

Crawl space repair with FSS.

DIY mold removal is often more accessible than hiring a professional. However, we do not recommend at-home solutions for the following reasons:

  • Safety Risks: Crawl spaces pose safety risks due to the small, dark, and confined area.
  • Potential Pest Infestation: Unkept crawl spaces often harbor pests and rodents, potentially causing health hazards.
  • Chemical Exposure: Inhaling bleach in an enclosed crawl space area is dangerous.

Hiring a mold remediation expert is the safest solution for removing crawl space mold.

What to Do Next

Foundation Support Specialists work truck

Safety should always be your top priority for any home repair project. We urge you to contact a mold remediation professional for a long-term solution. 

Learn more by exploring our resource pages. You will discover valuable information on crawl space mold and other foundation repair topics there.

Interested in crawl space encapsulation and repair services for mold prevention? Contact Foundation Support Specialists for a free inspection. Click the link below to get started! 

Shaye Glisson

Shaye Glisson

Shaye is an SEO Content Writer for Groundworks with over twelve years of experience creating helpful content across various industries, including home services and retail. She is a Gulf Coast native and writes from her firsthand knowledge of the area's hurricane and flood impacts on the local community. In her free time, Shaye enjoys exploring the local food and music scenes.

Resources

  • 5/
  • 5/
  • 5/
  • 5/
  • 5/
Review Logo

We want to thank Foundation Support Specialist for an outstanding job. Everyone we have worked with have been amazing. My wife and I are…

We want to thank Foundation Support Specialist for an outstanding job. Everyone we have worked with have been amazing. My wife and I are extremely satisfied with the work they did for us. They are prompt, professional and courteous. The crew of Fernando Aleman, Mark Willis and Bayron Aleman were fantastic. Those guys are a great crew. We also want to thank engineer Nic Flores for his initial assessment of our house. We HIGHLY recommend this company to anyone in need of foundation repair. A+ rating in our book… Thank you 😊

  • 5/
  • 5/
  • 5/
  • 5/
  • 5/
Review Logo

FSS did an awesome job stabilizing my house and leveling out my driveway. Robert Torres, Stamford Cooper, Mark Lopez, and Glenn Gonzales…

FSS did an awesome job stabilizing my house and leveling out my driveway. Robert Torres, Stamford Cooper, Mark Lopez, and Glenn Gonzales are true professionals. I would use FSS again for any future projects.

  • 5/
  • 5/
  • 5/
  • 5/
  • 5/
Review Logo

From start to finish, Foundation Support Specialists – and in particular, Adam – exceeded all expectations I had for my home's foundation…

From start to finish, Foundation Support Specialists – and in particular, Adam – exceeded all expectations I had for my home's foundation inspection.What really stands out to me about Adam is his exceptional attention to detail. His analysis was thorough and comprehensive, allowing me to fully understand the state of my home's foundation. It's clear he is a seasoned professional who truly knows his craft.Moreover, the service's uniqueness lies in its personalized approach. Adam didn't just provide a service, he provided an experience. He took the time to explain each step of the process, answering all my questions without any rush. This is the kind of hands-on service you just don't find everywhere these days. We even bonded Brand New, a band we both love.Price-wise, they're right on the money. The competitive rates didn't compromise the quality of the service, which is more than I can say for other providers I've dealt with in the past. It's truly value for money.In a marketplace crowded with competition, Foundation Support Specialists and Adam stand head and shoulders above the rest. I wholeheartedly recommend their services to anyone in need of a superior, cost-effective foundation inspection. Thank you, Adam, for making this experience a positive one.Cheers,Brian

  • 5/
  • 5/
  • 5/
  • 5/
  • 5/
Review Logo

Foundation Support Specialists' professional team took special care with our beloved 100 year old Seaton Church sanctuary in stabilizing it …

Foundation Support Specialists' professional team took special care with our beloved 100 year old Seaton Church sanctuary in stabilizing it for future generations–not an easy task in the black dirt of East Bell County. The foundation is stronger and systems are now in place to reduce moisture and water damage to the frame structure. Thank you Adan, Julio and Jose for doing the hard work underground every day to make that happen. Thank you, Joshua Long, for managing the job and keeping us informed.

  • 5/
  • 5/
  • 5/
  • 5/
  • 5/
Review Logo

Justin and Austin showed up on time, were highly professional during the entire process, and answered all my questions putting me at ease….

Justin and Austin showed up on time, were highly professional during the entire process, and answered all my questions putting me at ease. Final product was beautiful! I would use them again if ever needed and refer them to anyone who needs these services!Thank you Justin and Austin!

Publish Date:

Last Modified Date:

FSS Service area map.

Our Locations

Austin

11615 Angus Rd
Suite 104B
Austin, TX 78758

Dallas

1945 W. Walnut Hill Ln.
Irving, TX  75038

Houston

6422 Lozano Dr.
Houston, TX 77041

San Antonio

18630 Goll St.
San Antonio, TX 78266