How Much Does Mold Removal Cost? [2025 Price Guide]
If you discover mold growth in your home, it’s best to call a mold remediation specialist rather than attempting to remove the mold yourself. Even small amounts of visible mold are often the result of a larger problem involving excess moisture, poor ventilation, and mold spores in the air.
The cost of mold remediation varies. In the Los Angeles area, according to Angi, the average cost for small- to medium-sized mold remediation jobs is around $2,500, but estimates can range from $500 to $6,000. In larger, more severe cases that involve major structural damage repairs, costs can go up to tens of thousands of dollars.
What impacts the final price of mold remediation, and how do you know where you’ll fall on the cost scale? In this article, we’ll dive into what mold remediation companies factor into their service costs, then break down specific cost components. This guide will give you a better understanding of approximately how much your mold job will cost.
What Factors Determine the Cost of Mold Removal?
Where you live, how much mold is in your home, and the severity of mold damage all factors into how much mold remediation will cost for you.
Size of Mold Infestation
Usually, the larger the mold situation, the more it will cost to remove. Many mold remediation professionals provide estimates based on square footage, with an average cost ranging from $10 to $30 per square foot.
Location of Mold
Remediation costs more in certain rooms and areas of the home than others. For example, removing mold from inside an HVAC system is challenging and therefore more costly than addressing mold in more accessible locations, such as visible bathroom surfaces.
Location and Labor Costs
Labor costs vary depending on the details of the mold infestation and where you live. If you are in California or another coastal state with a higher cost of living, you will likely pay more for mold remediation than someone in a less expensive, landlocked state.
Mold Type
Restoration companies may charge more for certain types of mold based on the amount of labor involved. There are thousands of mold species, some much more common and easier to remediate than others. However, the process of cleaning and remediation is usually the same regardless of species.
Additional Services
Mold is often the result of water damage, which may require its own restoration process and treatment. Likewise, mold can cause damage that requires additional services, such as HVAC cleaning, flooring repairs, painting, and more. Specialized equipment such as air scrubbers and HEPA vacuums is also factored into the total cost of remediation.
Mold Removal Cost Breakdown
To provide the most accurate cost estimates, we relied on datasets from Angi and HomeGuide, which provide ranges per location in the house as well as by square footage.
By Location
Attic
The cost of mold remediation in your attic depends largely on the accessibility of your attic as well as whether only part of the attic is affected. Partial mold remediation will likely cost as little as $1,000 and as much as $6,000. Full attic remediation can be as much as $15,000 if there is extensive structural and insulation damage.
Basement
Basements are one of the most common sources for mold because they are often underground with limited or no light sources, offering prime conditions for trapping moisture and mold spores. Similar to the costs of remediation in an attic, mold in a basement ranges from $500 to $6,000 for partial cases and up to $15,000 for complete basement remediation.
Bathroom
Mold outbreaks can occur in a lot of different places within your bathroom: on the floor surrounding your toilet, the sides of your shower, around the sink, and more. Small mold jobs can cost as little as $500, while larger infestations can be as much as $3,000.
Crawl Space
How easily accessible your crawl space is will impact your cost. That said, due to the generally small size of crawl spaces, you typically won’t need to pay more than a few thousand dollars. Expect anywhere from $500 to $4,000.
HVAC System and Air Ducts
Removing mold from an HVAC system requires specialized tools and techniques, raising the price to a minimum of about $3,000. If the mold has spread throughout the system, the cost can go up to $10,000 for removal.
Whole House
While this is a disastrous scenario, professional remediation companies can tackle whole-house jobs, addressing all areas of mold damage and restoring your home. Estimates range from $10,000 to $30,000.
By Square Foot
On average, mold remediation costs $10 to $30 per square foot. HomeGuide provides an average cost per area size of the home:
- Small (10-100 square feet): up to $1,500
- Medium (100-300 square feet): up to $6,000
- Large (30-1,000 square feet): up to $15,000
- Very large/whole house (more than 1,000 square feet): up to $30,000
Keep in mind that the cost factors above and the precise location in the home help in providing the most accurate estimates for you.
Choose Flood Response for Professional Mold Remediation
Not sure if we want to discuss that the only true way to determine if mold is present is by laboratory testing. Visual inspections from our experienced technicians can “more than likely” determine if mold is present, but we are not allowed to state mold is present unless it is verified by Industrial hygienist testing. We work with several 3rd party and independent testing companies to ensure our customers that the tests are independent and that we are not “grading our own homework” Sometimes we involve testing companies prior to the work to help us better create a scope of work as to how far the areas of concern extend. Other times we simply offer clearance testing once our work is complete for homeowners to have a written record that the house is clean and passed with flying colors.
No matter the location or severity of your mold problem, the specialists at Flood Damage will arrive quickly to address the root cause. Often, our remediation professionals can visually determine if mold is present; however, we also work with independent laboratory testing companies who confirm and verify the case of mold. This partnership also allows us to provide clearance testing and give homeowners with a written record that the house is mold-free once remediation is complete.
While costs can vary based on several factors, professional mold remediation ensures mold is dealt with properly so it doesn’t recur and cause more damage in the future.
At Flood Response, our mold specialists stop mold development in its tracks using industry-standard treatments that target not only visible mold but also any spores released into the air. We address and eliminate mold odors, replace affected carpeting and home structures, and clean air ducts if needed. Our job is not finished until we’ve completely removed all signs of mold and restored your home environment.
For over 20 years, we’ve helped families and business owners in the Coachella Valley area take the right steps to restore their properties and rebuild their lives in the face of disaster. Are you looking for a reliable, full-service disaster recovery service in the Coachella Valley or the surrounding area?
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