Mold removal is the job of getting mold growth out of a home and making sure it does not come back. A small spot on shower grout is a cleaning task. Mold across a wall, inside a ceiling, in the attic, or in the air conditioning system is a different job: the moldy material has to come out without spreading spores through the house, and the water that caused it has to be fixed.
If you own your home and have found mold, call the number on this page. We connect you with an independent local company that can look at the problem and give you a written quote.
When mold removal needs a professional
The EPA's guidance for homeowners is that areas smaller than about 10 square feet, roughly a 3 by 3 foot patch, can often be cleaned yourself. A professional is the safer choice when:
- The mold covers more than about 10 square feet
- It is growing on drywall, insulation, ceiling tiles, carpet, or wood that stayed wet
- You smell mold but cannot see it, which often means it is inside a wall or under flooring
- The mold is in the air conditioning system or ducts
- The water came from a flood or sewage
- The mold keeps coming back after cleaning
- Someone in the home has asthma, allergies, or a weakened immune system
Our guide on DIY vs. professional mold removal walks through the decision.
What professional mold removal includes
A proper removal job usually follows the same steps:
- Inspection. Finding where the mold is, how far it has spread, and where the moisture is coming from.
- Fixing the water. A leak, roof problem, or drainage issue is repaired before or alongside the removal.
- Containment. The work area is sealed with plastic sheeting, and HEPA-filtered air machines keep spores from drifting into the rest of the house.
- Removal. Moldy drywall, insulation, carpet, and other porous materials are cut out and bagged.
- Cleaning. Remaining surfaces and framing are HEPA-vacuumed and cleaned.
- Drying. Dehumidifiers and air movers bring materials back to normal moisture levels.
- Verification. The area is checked, sometimes with clearance testing, before walls are closed up.
Rebuilding, such as new drywall and paint, is often a separate step or a separate contract. See what is mold remediation for the full process.
Common mold removal jobs
- Bathrooms: mold on ceilings, around tubs and showers, and behind tile. See black mold in the shower.
- Walls: growth that spreads from a leak or comes back through paint. See mold on walls and mold behind drywall.
- Ceilings: mold from roof leaks, upstairs bathrooms, or air conditioning drain pans. See mold on the ceiling.
- Attics and crawl spaces: mold on roof sheathing, joists, and insulation. See mold in the attic and mold in the crawl space.
- Air conditioning systems: mold in the air handler, drain pan, or ducts. See mold in the AC and ducts.
- After water damage: leaks, overflows, and flooding that soaked walls, floors, and carpet.
What mold removal costs
National cost guides put a typical professional job at about $1,100 to $3,400, with an average around $2,400. Size and location drive most of the difference:
| Affected area | Typical cost |
|---|---|
| Small, 10 to 100 sq ft | $500 to $1,500 |
| Medium, 100 to 300 sq ft | $1,500 to $6,000 |
| Large, 300 to 1,000 sq ft | $6,000 to $15,000 |
| Whole home, over 1,000 sq ft | $15,000 to $30,000 |
Size ranges are from HomeGuide's national cost data. Fixing the water source, rebuilding, and clearance testing are often billed separately. Our mold remediation cost guide explains what drives the price and how to compare quotes.
Black mold removal
Black mold, the common name for Stachybotrys chartarum, is removed the same way as any other mold. The CDC says all molds should be treated the same with respect to health risks and removal, so the job depends on the size of the area and the material, not the color. A price increase based on color alone is worth questioning. See how to remove black mold safely.
How to choose a mold removal company
- Check the license. Some states license mold work. Florida requires a DBPR license for most jobs over about 10 square feet, and Texas licenses mold remediators through the TDLR for most projects of 25 contiguous square feet or more.
- Ask for a written scope. It should describe containment, what will be removed, how the area will be dried, and how the result will be checked.
- Ask who verifies the work. An independent inspector or clearance test confirms you got what you paid for.
- Compare quotes line by line. A low price that skips containment or leaves wet drywall in place is not the same job.
- Be cautious with pressure tactics. Offers to waive your insurance deductible, demands for full payment up front, or fear-based claims before any inspection are warning signs.
Insurance and mold removal
Homeowners insurance usually pays for mold removal only when the mold followed a sudden, covered event, such as a burst pipe or storm damage to the roof, and often only up to a separate mold limit. Mold from slow leaks, humidity, or flooding is usually excluded. A written scope from a removal company helps if you file a claim. See does homeowners insurance cover mold.
How our service works
- You call the number on this page. The call is free.
- Your call is connected to an independent local company that serves your area.
- The company talks with you directly, schedules a visit if you want one, and gives you a quote. There is no obligation to hire.
We are not a contractor and do not perform mold work. Our service is for homeowners; if you rent, start with your landlord and see renters insurance and mold.
Find mold removal near you
Choose your state and city below to see local conditions, costs, and licensing rules, or call the number on this page to be connected with a local company.