Mold Removal Marietta, GA: $1,223 to $3,757 (2026)

National figures; no Marietta mold removal price is published in the sources we checked. Sources are shown side by side, not averaged.

Is it urgent? When mold in a Marietta home cannot wait

• Call now: mold after a flood or sewage backup, growth over about 10 square feet, mold inside walls or ducts, or anyone at home with asthma or a weakened immune system.
• This week: a musty room you cannot explain, a stain that grows, or mold that came back after you cleaned it.
• Can wait: a small patch on tile grout or a window sill that you can scrub and keep dry.

The EPA's line between a homeowner job and a hired one is about 10 square feet, roughly a 3 foot by 3 foot patch. The CDC says people with asthma or mold allergies may have severe reactions.

Georgia has no mold license: what that means in Marietta

The Georgia Department of Public Health says indoor air quality "is not a regulated program," that "mold inspections, testing or remediation practices have no enforceable state or federal standards," and that local housing codes "do not contain or enforce any mold related standard." The Environmental Law Institute's 2024 compilation of state mold laws lists none for Georgia.

So in Marietta, unlike Texas or Florida, there is no state mold license to look up and no rule keeping the tester and the remover apart. That shifts the checking to you. Ask for a written scope that names the moisture source, the containment, what will be removed and how dryness will be measured at the end; and if a company that tests for mold also sells the cleanup, get a second opinion before you pay for a large job. The department says its branch does not offer services for indoor mold, so a lab report alone, with no standard to compare it to, proves little.

Mold in a Marietta rental

More Marietta households rent than own. The Census Bureau's 2020 to 2024 survey counts 13,049 renter households among 24,707 occupied homes, 52.8%. Georgia law, O.C.G.A. 44-7-13, says the landlord shall keep the premises in repair, and for leases entered or renewed on or after July 1, 2024, deems every residential lease to include a promise that the home is fit for human habitation.

Because local housing codes carry no mold standard, the leak is what to report. Write to the landlord with dated photos of the leak and the mold, keep a copy, and ask when the repair will happen. The Georgia Department of Public Health points renters to Georgia Legal Aid and the Georgia Landlord Tenant Handbook.

Why Marietta homes grow mold

NOAA's 1991 to 2020 normals for its Mableton station in Cobb County show 56.18 inches of rain a year, with 81.7 days of 0.10 inch or more. That is a lot of chances for a roof, window or gutter problem to put water into a wall.

Inside, the usual source is a slow leak nobody saw. The median Marietta home was built in 1987, per the Census Bureau, so toilet seals, supply lines and water heaters are aging. A running or seeping toilet is worth fixing fast for two reasons: it feeds mold under the floor, and Marietta Power and Water bills a toilet leak for both water and wastewater over your average, where a pipe leak gets the wastewater waived. The EPA says wet materials dried within 24 to 48 hours usually will not grow mold; the mold growth timer shows the clock. Crawl spaces are covered on crawl space mold.

How much does mold removal cost in Marietta?

No Marietta price is published, so three national guides are shown side by side. Most jobs in HomeAdvisor's June 2026 guide land between $1,223 and $3,757, averaging $2,368, or $10 to $25 a square foot. This Old House's March 2026 average is $2,300. Fixr's August 2025 average is $3,500, with most jobs from $1,500 to $9,000. HomeAdvisor's location figures put a basement at $500 to $3,000, a crawl space at $500 to $2,000 and an attic at $1,000 to $4,000.

Testing is a separate bill: HomeGuide puts a mold inspection at $300 to $650, averaging $450, and HomeAdvisor prices testing with lab analysis at $450 to $800. The EPA says sampling is usually unnecessary when you can see the mold. See mold inspection cost for when it helps.

Does homeowners insurance cover mold in Marietta?

Usually only when it follows a covered event. The Insurance Information Institute says mold is generally not covered by standard homeowners policies, as a maintenance issue, but that removing it may be covered when it is the direct result of a covered peril such as a burst pipe, and that federal flood policies cover mold only when it is directly attributable to a flood. Call your insurer before the work starts, photograph the mold and the leak first, and do not sign anything that hands your claim to the contractor.

Local rules, contacts and data for Marietta, from the official, Census and NOAA pages in the sources list.

Questions to ask a Marietta mold company

1. Georgia has no mold license: what training do your technicians have, and will you put the scope in writing?
2. What is the moisture source, and who fixes it before you start?
3. How will you contain the work area?
4. If you tested, do you also sell the cleanup, and would you show the results to a second company?
5. How will you prove the area is dry when you finish?

Calls go to an independent company that serves your area and takes this kind of job; hours vary (how calls work). Ask the company for proof of insurance, and for a license number wherever your state licenses the work.

Do this now: mold in a Marietta home

1. Find and stop the water. Check toilets, sinks, the water heater and the roof above the stain.
2. Keep sensitive people out of the room.
3. Do not run the furnace or AC if you suspect the system is moldy, the EPA says.
4. Measure the patch. Under about 10 square feet, the EPA says most people can clean it; larger, hire help.
5. Photograph everything, then call your insurer or write to your landlord.
6. Sign nothing that hands over an insurance claim.

More mold and water pages near Marietta

Water first: water damage restoration in Marietta. Nearest metro: mold removal in Atlanta. Other Southeast cities: mold removal in Charlotte and mold removal in Nashville. For the whole picture: what mold remediation costs, removing black mold and mold in a crawl space.