How Much Does It Cost to Clean or Repair a Crawl Space?

Scott Dylan Westerlund
Updated January 11, 2022
Person carrying bucket of cleaning supplies
Photo: Baan Taksin Studio / Adobe Stock

While the typical cost to clean a crawl space is between $500 and $4,000, repairing a crawl space runs between $1,500 and $15,000

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Whipping your crawl space into shape can mean cleaner indoor air, warmer floors, and big savings on heating and cooling. While costs for cleaning and repairs can span from $500 to $15,000 based on the complexity of the job, most people pay around $6,000 for crawl space work. It's very important to have your crawl space inspected for problems like dirt, moisture, mold, and pest droppings that can impact indoor air quality.

How Much Does Cleaning a Crawl Space Cost by Square Foot?

A 900-square-foot crawl space will run you between $500 and $2,500. This equates to $0.55 to $2.70 per square foot. Crawl spaces between 1,500 and 3,000 square feet get closer to $4,000. The "mess" in your crawl space also determines cost. Most contractors charge more for clearing and disposing of debris.

Expect to add between $100 and $500 extra to your project cost if your crawl space is difficult to access. For hazardous material and waste, costs will rise again because of the increased risk, labor, and complexity.

How Much Does It Cost to Clean or Repair a Crawl Space Yourself?

Tackling a crawl space cleaning on your own can cost as little as $50 if you simply need some garbage bags for debris, heavy-duty cleaner, plastic gloves, and protective glasses. However, not everyone is lucky enough to have a crawl space that's at the DIY level in terms of remediation needs.

Cleaning your own crawl space is great if your only problem is general debris. If you have issues like mold, fungus, pest droppings, excessive moisture, or dry rot, it's imperative that you call in a remediation expert to assess the situation to show you ways to protect your crawl space. Trying to clear out or repair a damaged crawl space can expose you to everything from mold to asbestos.

At least once every six months, you should get down in the crawl space with a flashlight to assess any new damages or problems.

Crawl Space Cleaning and Repair Cost Breakdown

Basement crawl space
Photo: Jason / Adobe Stock

The cost to get a sparkling crawl space varies based on what your cleaning pro finds once they get down there. Take a look at costs for various cleaning, removal, and remediation services for crawl spaces.

Cleaning Dirt and Debris

If your crawl space just needs some basic cleaning, it's not unusual to pay under $1,000 for the whole job.

Removal of Rodent Droppings

If critters have been hanging out in your crawl space, removing droppings can help improve your home’s air quality. This can cost you between $800 and $3,000.

Mold Remediation

Mold remediation costs between $1,000 and $3,500. There's a good chance that you have a moisture situation if you have a mold situation. A remediation pro may offer ways to protect your home using seals, vapor barriers, and dehumidifiers.

Fungal Remediation

Fixing a fungi problem in the average crawl space costs between $1,000 and $3,500. Moisture in your crawl space invites all kinds of growth. It may be necessary to remove fungi like white mold, mushrooms, and slime fungi. While fungi won't damage your home, it can create respiratory and allergic reactions.

Replacing a Support Beam

If you need to replace a beam due to rot or damage, the cost is between $1,500 and $5,000.

Removing and Replacing Damaged Insulation

If your damaged crawl space insulation needs to be swapped out, the cost is between $1,000 and $4,000. Both batting insulation and spray foam can be used in crawl spaces.

How Can I Improve My Crawl Space on My Budget?

There are some improvements you can make to protect and preserve your crawl space to make your home safer and healthier. Take a look at some options that might be worth fitting into your budget.


Consider adding a sump pump to prevent moisture from pooling in your crawl space.


Consider paying for landscape grading that helps to direct water drainage away from your crawl space to prevent moisture issues.


Encapsulation costs up to $15,000. Encapsulation is a process that helps to prevent humidity issues.

$20,000 to $100,000

If you'd like to turn your crawl space into usable space, consider converting it into a basement that can be used for everything from storage to additional living space.

FAQs for Cleaning or Repairing a Crawl Space

What should I consider when cleaning my crawl space?

Make sure you're calling in the right expert to help repair or clean your crawl space. A serious issue may require multiple experts that include a local mold remediation pro, an HVAC pro, a foundation pro, and a plumber. You should also consider using a nearby junk removal service to avoid the need to handle debris that could be covered in mold, fungi, rot, or asbestos.

How do I keep water away from my crawl space?

Proper drainage is the only way to ensure that your crawl space stays dry. Dehumidifiers can also help to prevent moisture from accumulating if you have a high-humidity environment.

What other projects should I do at the same time?

Ask a remediation pro about using crawl space encapsulation for protecting your home. In addition to keeping radon out, this fix regulates humidity levels to prevent humidity, moisture, and mold issues.

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