The cost of a mold inspection might seem high, but it’s one of the best investments you can make for your health and home. Read on to learn cost-saving tips.
How Much Does Mold Remediation Cost in San Francisco? [2025 Data]
Normal Range: $1,165 - $4,493
Mold remediation costs in San Francisco cost $2,796 on average, but it can cost between $1,165 and $4,493, depending on location, type, and size of infestation.
How we get this data
Vladimir Nadtochiy / 500px / 500Px Plus / Getty Images
Vladimir Nadtochiy / 500px / 500Px Plus / Getty Images
Cost Insights
The severity of infestation, location, and type of mold determine what mold remediation will cost in San Francisco.
The humid climate and coastal air make homes in the Bay Area prone to mold infestations, prompting regular inspections or preventative treatments.
The presence of mold can decrease the value of your San Francisco home by 20% to 37%.
The cost of living in San Francisco is significantly higher than the national average, which means homeowners need to allocate more room in their budget for home repairs like mold remediation. The average mold remediation cost in San Francisco is $2,796, but it can range from $1,165 to $4,493 or more. Let’s dive into the details of what will determine the cost of removing mold from your San Fran home.
Mold Remediation Cost Factors
The type of mold, size of infestation, and location are the main factors that will affect how much you will pay a mold remediation company in San Francisco. Treating a small mold infestation can cost as low as {MinCost{, but large, severe infestations can be as high as $9,448.
Mold Location
It costs more to remove mold from certain areas of your home than others. For instance, mold growth in hard-to-reach areas, like in your HVAC system or drywall, can require more time and materials to remove than mold in very accessible areas, driving up costs.
| Location | Average Remediation Cost |
|---|---|
| Attic | $1,000–$4,000 |
| Basement | $500–$3,000 |
| Crawl space | $500–$2,000 |
| Wall | $1,000–$20,000 |
| HVAC systems | $3,000–$10,000 |
| Bathroom | $500–$1,000 |
| Whole house | $10,000–$30,000 |
Mold Infestation Size
Most mold removal professionals charge $10 to $25 per square foot. So, if you're removing mold from a 100-square-foot area, you can expect to pay around $1,000 to $2,500. But factors like where the growth is and the mold type can affect how much it costs to remove it.
Mold Inspections and Tests
Mold inspection costs between $300 and $1,075. Mold testing is key to determining whether you have the presence of mold in your home, plus the extent of the infestation. You’ll need to hire a mold inspector to test surface samples in your home before moving forward with remediation.
Mold Type
Regardless of how it affects remediation costs, you need to know which type of mold you have in your home for your safety. That said, if a mold test reveals the presence of black mold, your mold remediation pro will likely charge more to remove it based on the additional cost of protective equipment.
| Type of Mold | Description |
|---|---|
| Alternaria | A common mold found outside in spring and summer, it primarily attacks plants. |
| Aspergillus | White fuzz that turns black over time, but it can also be brown, yellow, and green. It can cause respiratory illness and requires immediate remediation. |
| Aureobasidium | Grows on painted surfaces and behind wallpaper. It’s often pink and causes allergies. |
| Chaetomium | Extremely toxic and can cause brain infections and various cancers. A white fuzz that turns to blue or green. Requires immediate professional removal. |
| Cladosporium | Commonly found in basements and HVAC systems. It can cause mild allergy symptoms. |
| Fusarium | One of the most toxic molds; requires professional removal once discovered. Often caused by water leaks, it is commonly found in walls and floors. |
| Penicillium | Blue-green and grows in areas of elevated moisture where water damage has occurred. It can be very dangerous. |
| Serpula lacrymans | Causes severe damage to wood and spreads fast. Unfortunately, this mold is usually found after it has spread widely. |
| Stachybotrys chartarum (black mold) | Extremely dangerous, not to mention fast-spreading. Requires immediate removal by a professional. |
| Trichoderma | Grows rapidly in wood, plants, and soil. Commonly found in HVAC systems and not as widely discovered as others in this list. |
| Ulocladium | A dark-colored mold found near windows and in kitchens and basements. Looks like black mold, but it isn’t as toxic to humans. Nevertheless, it still requires removal. |
Damage Caused by Mold
If left untreated, mold can damage your drywall, carpeting, and flooring. Replacing or repairing your walls or floors will add costs to the removal.
Here are some cost estimates for different types of mold damage repairs in San Francisco, CA:
| Repair Type | Cost Ranges |
|---|---|
| Drywall | $150–$2,900 |
| Carpet | $100–$500 |
| Hardwood Flooring | $200–$3,800 |
Mold Remediation Pro Costs
The amount it will cost to hire a mold remediation professional in San Francisco depends on the size and scope of the job. The Environmental Protection Agency (EPA) recommends only removing mold yourself if it covers less than 10 square feet. Otherwise, it's best to call a local mold removal service. Even if the mold looks like it only covers a small area, you should always call a pro to inspect it.
Additional permits may be required if the mold has caused structural or electrical damage to the home. Typically, the mold remediation professional will obtain the proper permits. An electrical permit can cost between $10 to $500, and a building permit runs between $150 to $2,000. It’s best to ask the mold remediation pro if permit costs are included in the quote.
Additional Pros to Consider Hiring
Depending on the severity of the mold infestation, you may have to hire additional professionals to repair your home and prevent reinfestation. Here are some of the professionals you may need to hire, along with their average costs:
Crawl Space Encapsulation Contractor: $5,000–$15,000
Roof Contractor: $980–$2,760
Basement Waterproofing: $3,210–$26,955
Does Mold Remediation Increase Home Value?
Mold remediation will prevent your home’s value from drastically decreasing. In fact, a mold infestation, whether it’s minor or severe, can decrease your home’s value by 20% to 37%. The San Fran real estate market is competitive, and it will be much more difficult to sell a home with a mold infestation. Hiring a mold professional to erradice the mold and repair your home will help maintain its value and make it more marketable to potential buyers.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi 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.
Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.
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