How Much Does Mold Remediation Cost in 2025?
This project can cost anywhere from $375 to $7,000, so take a look at what could affect this price and get a quote from a pro.
Mold remediation is complex and involves special equipment, often requiring professional expertise for thorough removal.
Mold remediation costs range from $1,223 to $3,750 depending on the location and extent of mold growth.
Mold remediation costs are influenced by the size and location of the mold, the type of mold, the extent of damage, and necessary protective and disposal equipment.
Visible mold growth, hidden mold behind walls or in basements, and potential health risks are signs to undertake mold remediation.
This article was updated using automation technology and thoroughly reviewed for accuracy by HomeAdvisor Editor Ryan Noonan.
On average, homeowners spend about $2,365 on mold remediation, with most paying between $1,223 and $3,750. You can expect to pay $10 to $25 per square foot for this service.
Mold remediation is an essential process to ensure the safety and health of your home. Key factors influencing the cost include the size and location of the mold growth, the type of mold, and the extent of damage. Budgeting for mold remediation is important, as untreated mold can lead to serious health issues and structural damage. Hiring a professional mold remediation specialist is recommended to thoroughly and safely remove mold from your home.
What Is Mold Remediation?
Remediation is another word for mold removal and includes reversing and stopping the mold in your home from causing more damage or health issues. Testing for mold starts with looking for obvious visual signs of growth. If you suspect mold is hiding behind walls or in the basement, hire an expert to take samples of the air and surfaces.
Basic mold testing can cost between $250 and $350, while more comprehensive testing, including lab analysis, can range from $400 to $800. From there, you should hire a professional remediation company to address the mold issue thoroughly and safely.
Mold Remediation by Location
The size of the growth and the location of the mold will impact the total project cost. Here's what you can expect to pay by room.
| Location in House | Mold Remediation Cost |
|---|---|
| Attic | $1,000 – $4,000 |
| Basement | $500 – $3,000 |
| Bathroom | $500 – $1,000 |
| Crawl space | $500 – $2,000 |
| Wall | $1,000 – $20,000 |
| HVAC or AC system | $3,000 – $10,000 |
| Whole house | $10,000 – $30,000 |
Mold Remediation Cost Factors
Several factors impact the cost of mold removal, including the size of the affected area.
Infestation Size
Mold remediation typically costs between $10 and $25 per square foot. The amount of growth and level of corrosion may require the replacement of structural materials, which brings in a whole host of extra fees. Keep in mind that the location of the mold infestation and its type will affect the total cost of the service.
Type of Mold
Additionally, the type of mold can affect remediation costs due to the need for specialized equipment and precautions when dealing with toxic varieties like black mold. Many remediation projects also require specialized protective and disposal equipment.
Some of the most hazardous types of mold include:
Aspergillus
Chaetomium
Fusarium
Black Mold
These mold varieties are less harmful to humans, but still require mediation from a professional:
Alternaria
Aureobasidium
Cladosporium
Fusarium
Serpula lacrymans
Trichoderma
Ulocladium
Type of Damage
Mold and fungi in the home can cause extensive property damage over time while posing a wide range of potential health risks. Remediation can be expensive, but it's crucial to address it promptly to prevent further damage and increased costs.
Here are the estimated costs for frequent mold-provoked repairs:
Flooring repair: $200–$550
Carpet repair or replacement: $775–$2,600
Drywall repair or replacement: $1,000–$2,900
DIY vs. Hiring a Pro
Homeowners can perform small remediation projects for a minimal cost, typically between $50 and $150 for necessary materials and protective equipment. According to the U.S. Environmental Protection Agency, homeowners can handle the problem if the infestation covers 10 square feet or less, using proper techniques and protective equipment. However, mold can be hard to find and toxic, so handle even the most minor projects with care.
Professional mold remediators should perform jobs involving a medium-to-large infestation area and dangerous mold types. Additionally, if mold growth exists in more than one area of your home, it’s best to leave the work to a remediation crew. To ensure thorough and safe mold removal, consider hiring a professional mold remediation expert.
How HomeAdvisor Gets Its Cost Data
No place is more important than your home, which is why HomeAdvisor connects homeowners with local pros to transform their houses into homes they love. To help homeowners prepare for their next project, HomeAdvisor provides readers with accurate cost data and follows strict editorial guidelines. We surveyed thousands of real customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Frequently Asked Questions
Mold remediation can last indefinitely if you eliminate the underlying moisture problem that caused mold growth. That’s why it’s essential to repair leaks, reduce humidity, and remove water-damaged materials to prevent mold from returning to your home. Be sure to keep up with regular maintenance and inspections to help prevent future mold growth.
It's generally not recommended to stay home during mold remediation, especially if the infestation is extensive. Mold spores can become airborne during removal, posing health risks. It's best to relocate temporarily while professionals remove the mold and restore your home. Some contractors may require occupants to vacate to ensure safety and efficiency.
Mold can return after remediation if the underlying moisture problem isn't fully resolved. To prevent mold from coming back, it's essential to identify and repair the source of moisture, such as leaks, high humidity, or poor ventilation. Without addressing these issues, mold spores can find the damp environment they need to grow again. Ensuring that your home remains dry and well-ventilated is key to preventing future mold growth after remediation.
Unfortunately, exposure to mold can lead to various health effects, especially in individuals with allergies, asthma, or weakened immune systems. Common symptoms include nasal congestion, throat irritation, coughing, wheezing, eye irritation, and skin rash. Some molds produce mycotoxins, which can cause more serious health issues like respiratory infections or neurological problems. Prolonged exposure to toxic molds may even contribute to severe conditions such as lung disease. It's important to address mold problems promptly to protect your health and well-being.
