Verified Pro
Zerorez of St. Louis
Mold Remediator · Serves Hazelwood, MO
4.9 (5913)
Verified professionals · Missouri
Mold Remediation in Missouri
325 verified professionals across 84 cities
This page lists the 325 mold professionals we have identity-checked across 84 Missouri cities. We don't hold Missouri license records, so each listing shows only the checks we could complete.
Use it to compare companies near you, see what a typical job costs in the state, and know what to ask a contractor for before you hire.
Every listing identity-checked
Missouri Market Report
325
Providers Listed
Across 84 cities
0
Insurance Verified
Where a company supplied a certificate
$1,100 – $3,500
Typical Project Range
Based on Missouri market
Is it licensed here?
Is mold remediation licensed in Missouri?
No. Missouri has no state license, registration or certification for mold remediation or mold testing, and the state health department says mold testing is not a regulated industry in Missouri. Missouri's state licensing division does not list a general contractor license either, so check with the city or county for any local contractor license.
Whatever the state requires, a mold-specific certification from an industry body is worth asking for. The IICRC's Applied Microbial Remediation Technician (AMRT) and the ACAC's Council-certified Microbial Remediator (CMR) both require training and an exam, and both can be looked up on the issuing body's public register.
Insurance is the other half. Ask for a certificate of insurance that names general liability coverage, and call the carrier on the certificate to confirm it is current. Then get the job in writing before anyone starts: what will be contained, what will be removed, how the moisture source will be fixed, and who will check the result.
Consumer Warning
Missouri has no state license, registration or certification for mold remediation. This makes verification critical. Anyone can buy a truck and call themselves a "Mold Expert." Every listing here is identity-checked, and we show IICRC certifications and insurance only where a company has supplied them for verification, so you can see what has actually been checked before you call.
What to ask a mold company for in Missouri
- A mold-specific certification you can look up (IICRC AMRT or ACAC CMR), not just a general contractor registration
- A certificate of insurance showing general liability, confirmed with the carrier
- A written scope: containment, what gets removed, and how the moisture source is fixed
- Post-remediation verification by someone other than the company that did the work
- Recent reviews under the same business name and address that appear on the quote
Top-rated companies
Top-rated mold remediation companies in Missouri
Ordered by verification tier, then by review strength, which weighs volume and rating together so a 4.8 from two hundred reviews outranks a 5.0 from three. Each card shows only the checks we could complete.
Verified Pro
Roto-Rooter Plumbing & Water Cleanup
Full Service · Serves St Joseph, MO
4.9 (2718)
Verified Pro
Roto-Rooter Plumbing & Water Cleanup
Full Service · Serves Blue Springs, MO
4.9 (2520)
Verified Pro
Roto-Rooter Plumbing & Water Cleanup
Full Service · Serves Ballwin, MO
4.9 (1544)
Verified Pro
Roto-Rooter Plumbing and Water Cleanup
Full Service · Serves Ozark, MO
4.9 (933)
Verified Pro
Foundation Recovery Systems
Mold Remediator · Serves Lee's Summit, MO
4.7 (1383)
What a typical job costs
What mold remediation costs in Missouri
$1,100 – $3,500typical Missouri range
Source: Verified Remediation cost model, typical range
The middle half of Missouri projects in our cost model fall in this range. A single contained problem, like one wall or a bathroom ceiling, usually comes in under it; whole-basement or post-flood work runs over it. Testing before and after is quoted separately, and should be.
See the detailed cost guideSize it to your own job
Four questions turn the Missouri figures into an estimate for your job.
- ZIP code
- Where the job is
- Area
- Under 10, 10 to 50, or over 50 square feet
- Spread
- Visible only, inside walls, or in the ducts
- Place
- House, condo, or rental
What comes back: a range split into assessment, remediation, and clearance testing.
Estimate your costFree to use. An estimate, not a quote.
Cities by county
Browse Missouri cities by county
Every Missouri city with a listed professional, grouped by county. Pick a city to see its companies, or use the full list if your town is not here.
St. Louis County
66 pros · 14 cities
Jackson County
39 pros · 9 cities
Clay County
31 pros · 5 cities
Saint Charles County
28 pros · 8 cities
Greene County
19 pros · 2 cities
Boone County
17 pros · 3 cities
Cole County
16 pros · 1 city
Jasper County
11 pros · 3 cities
Taney County
8 pros · 1 city
Phelps County
6 pros · 1 city
Andrew County
5 pros · 1 city
Cape Girardeau County
5 pros · 2 cities
Randolph County
5 pros · 1 city
Scott County
5 pros · 1 city
St. Francois County
5 pros · 2 cities
Camden County
4 pros · 3 cities
Pettis County
4 pros · 2 cities
Adair County
3 pros · 1 city
Butler County
3 pros · 1 city
Callaway County
3 pros · 1 city
Johnson County
3 pros · 1 city
Saline County
3 pros · 1 city
Audrain County
2 pros · 1 city
Franklin County
2 pros · 2 cities
Marion County
2 pros · 1 city
Newton County
2 pros · 1 city
Platte County
2 pros · 1 city
Dent County
1 pro · 1 city
Dunklin County
1 pro · 1 city
Livingston County
1 pro · 1 city
Miller County
1 pro · 1 city
Other areas
2 pros · 2 cities
Questions people ask
Common questions about mold remediation in Missouri
Answered without a sales pitch.
How much does mold remediation cost in Missouri?
Most Missouri jobs fall between $1,100 to $3,500, which is the middle half of projects in our state cost model. The price moves with how much material has to come out, whether the moisture source is fixed in the same job, and whether containment and air filtration are needed. Get the scope in writing and ask what post-remediation testing will cost, because it is usually quoted separately.
Does Missouri require a license to do mold remediation?
No. Missouri has no state license, registration or certification for mold remediation or mold testing, and the state health department says mold testing is not a regulated industry in Missouri. Missouri's state licensing division does not list a general contractor license either, so check with the city or county for any local contractor license. Whatever the state requires, a mold-specific industry certification is worth asking for: IICRC AMRT or ACAC CMR, both of which you can look up on the issuing body's public register.
Can you sell a house with mold in Missouri?
Selling is legal. What gets sellers in trouble is hiding a problem they knew about: in most states a known mold or water problem is a material defect that has to be disclosed, and a buyer's inspector tends to find it anyway. The two clean routes are to remediate before listing and keep the clearance report, or to disclose it and price the work in.
How do I check a mold company in Missouri?
Ask for three things and check each one yourself: a mold certification you can find on the IICRC or ACAC public register, a certificate of insurance you confirm with the carrier, and a written scope of work. Then look the business up under the exact name and address on the quote. Our listings show which of those checks we could complete for each company.
Is a free mold inspection a red flag?
Not on its own, but know what it is. A free visit from a company that also sells remediation is a sales estimate, not an independent assessment. If you want a result you can rely on, pay an assessor who does not do the remediation, and have the same kind of independent check done after the work. That separation is the strongest protection you have, with or without a state license behind it.
What can renters in Missouri do about mold?
Report the moisture problem to the landlord in writing, with photos and dates, and ask for the leak or ventilation fault to be fixed rather than the stain painted over. If nothing happens, the local building or code enforcement office can inspect for the underlying water problem even where there is no mold rule to enforce. Keep every message; a tenant remedy or a health complaint will rest on that record.
Helpful Guides
- Mold Remediation Cost Guide→National averages, cost factors, and insurance coverage
- Mold Exposure Symptoms→Health signs, who's at risk, and when to get tested
- Mold Identification Guide→Visual guide to identifying common mold types in your home
- How to Hire a Mold Company→6-step checklist to verify credentials and avoid scams
- Bathroom Mold Guide→Causes, prevention, and when bathroom mold needs a pro
- Cleaning Mold With Vinegar→Step-by-step DIY guide and when vinegar isn't enough
Actively Verified
About Mold Remediation in Missouri
Missouri has no state license, registration or certification for mold remediation. Every listing is identity-checked, with state licenses, insurance, and reviews verified where available.