Questions people ask

Short answers, with the numbers tied to the same sources as the estimate.

The estimate

How does the estimate work?

Seven questions: where the mold is, how large the patch is, whether you can see it, any water event in the last 90 days, HVAC involvement, home type, and ZIP code. The band appears on screen from the cost engine before you share any contact details.

Where do the numbers come from?

Published 2026 cost data: This Old House, Fixr, HomeWyse, Angi, Today's Homeowner, ServPro, Insurance.com, and EPA. Each cost page names its sources and the date we verified them. Professional remediation runs $10 to $25 per square foot in those sources.

Is it a quote?

No. It is a planning band. The only firm price is the one a remediation company gives after seeing the job. The band exists so you know the scope question before that visit.

Do you adjust for my city?

Not yet. No primary source publishes a city-level mold price index, so the engine ships with every regional multiplier at 1.0 and says so on each location page. The city pages describe local climate, housing age, and flood exposure from sourced data instead.

What if the area is under about 10 square feet?

EPA says areas under about 10 square feet are usually a homeowner job once the moisture source is fixed. The flow tells you when that applies and still shows what a professional charges for the same scope.

Inspection, testing, and remediation

What does a mold inspection cost?

Most inspections run $300 to $800, with typical jobs at $450 to $700. Visual-only inspections sit at the low end; adding air samples and lab work moves it up.

What does air testing cost?

Two air samples with lab analysis run $500 to $700, and extra samples add $60 to $80 each.

Should the same company inspect and remediate?

Separate them where you can. A company that sells the remediation has a reason to find more of it. Some states, including New York, require the assessor and the remediator to be different businesses.

What does whole-house remediation cost?

$10,000 to $30,000. That scope usually follows a long-term leak, a flood, or an unoccupied home.

Does the HVAC system need to be off?

EPA says not to run the system if you know or suspect it is contaminated with mold, because every cycle moves spores through the house.

Insurance and money

Does homeowners insurance cover mold?

Usually only when a sudden covered peril caused it, such as a burst pipe, and usually under a sublimit of $1,000 to $10,000. Long-term leaks, floods, sewer backups, and ground seepage are commonly excluded. Ask your agent and read the declarations page.

Does flood insurance cover mold?

Flood-caused mold falls under a separate flood policy, where one exists. Homeowners policies exclude flood. Ask your agent which policy applies to your loss.

The site

Who gets my details?

One featured remediation company for your city, plus us. Where no company has claimed a city yet, we forward the request by hand and say so. Details are never sold.

Who runs MoldEstimates?

ThriveUp LLC in Greenville, South Carolina. The site launched in November 2026.

How do remediation companies get on the site?

One company per market, on a production and advertising retainer: two shoot days a month, a long-form piece and sixteen shorts, ads on the company's own footage, every page in its territory, and the emergency line. $10,000 a month on a 3-month term, less on longer terms, with a founding rate of $8,000 for the first 5 partners.

What does the emergency button do?

It skips the estimate questions. You send four fields and a person calls you back ahead of every standard inquiry. It is not an emergency service: for a life-safety emergency, a gas smell, or water near wiring, call 911 or your utility first.

Can I upload photos?

Paste links to shared photos in the estimate flow. Direct upload is on the roadmap.

See your number before anyone calls

Seven questions, a planning band from published 2026 data, then one remediation company if you want it.

Get my estimate