
Mold inspection & testing
Moisture mapping, thermal imaging and lab samples when they answer a real question. Ask for an inspector who does not also sell the removal.
Inspection detailsFound mold or a musty smell in your Dayton, Ohio home? Describe it once, and independent mold inspection and remediation companies that work across Montgomery and Greene counties reply with free quotes.
If anyone in the home has breathing problems or other symptoms, see a doctor. This site does not give medical advice.
Pick the problem closest to yours. Companies that handle that kind of job follow up with quotes. Images are illustrations.

Moisture mapping, thermal imaging and lab samples when they answer a real question. Ask for an inspector who does not also sell the removal.
Inspection details
Containment, HEPA filtration, removal of moldy drywall and insulation, drying and a clearance check. Includes black mold and duct sections.
Removal details
Musty basements, seepage after heavy rain, white efflorescence, mold behind finished walls and carpet. The most common Miami Valley mold call.
Basement details
Burst pipes, sump pump failures, sewer backups and flash floods. Drying fast is what keeps a water problem from becoming a mold problem.
Water damage details
Damp crawl spaces under additions, porches and some older homes. Look for a musty smell upstairs and mold on joists and subfloor.
Crawl space details
Ice dams, bath fans venting into the attic, and roofs that were patched rather than replaced after storms, including the 2019 tornadoes.
Attic details
Shower walls, window sills, under-sink leaks. Often the smallest jobs, and sometimes ones you can clean yourself.
Bathroom and kitchen details
For renters and landlords: written notice, repairs and what Ohio law says, in plain language. General information, not legal advice.
Renter and landlord detailsDayton Mold Remediation Pros does not inspect, test or remove mold. It passes your request to independent Miami Valley companies that do.
Use the form or call. Say where the mold is, roughly how big it looks, what got wet and when, and whether the home has a basement or crawl space. Photos can come later.
Independent mold inspection and remediation companies that work in your part of Dayton, OH and the surrounding towns contact you to look at the problem and quote it.
Read each written scope, check insurance and registrations, and pick the company you trust, or none. Quotes are free and there is no obligation.

Rain in every season. NOAA's 1991 to 2020 normals for Dayton International Airport show 41.33 inches of precipitation a year, with May (4.51 inches) and April (4.46 inches) the wettest months and every month above 2.35 inches. There is no dry season when a damp house fully dries out, and average humidity runs about 70 percent. By late October 2026 the airport gauge had already passed its full-year normal (NOAA daily data).
Basements and the river valley. Basements are common in the Miami Valley, and much of the area sits along the Great Miami, Stillwater and Mad rivers. The Miami Conservancy District dams built after the 1913 Great Dayton Flood hold back big river floods, but they do nothing for basement seepage, a failed sump pump or a sewer backup.
Old housing stock. In the city of Dayton the median home was built in 1951. About 36.7 percent of homes predate 1940 and 85.4 percent predate 1980, so many basements, roofs and plumbing lines are well past their first life. Older homes also raise asbestos and lead questions before any tear-out.
Storm-repaired roofs. The 2019 Memorial Day tornadoes damaged roofs from Trotwood and Old North Dayton to Beavercreek. Roofs that were patched rather than replaced can leak slowly into attics and ceilings for years.
Winter condensation. About 110 nights a year drop to freezing. Warm, moist indoor air condenses on cold windows, exterior walls and roof sheathing, and ice dams can push meltwater under shingles.
Published guides put remediation at about $10 to $25 per square foot, a typical job at $1,200 to $3,750, and a Dayton mold inspection at $292 to $457 (homeyou, Sep 2026). See the full price table and a calculator that turns your square footage into a planning range. Your quotes come from the companies, not from this site.
Cost guide and calculatorOhio does not issue a mold-specific license, and Public Health - Dayton & Montgomery County does not regulate mold. Instead, check a company's certificate of insurance, City of Dayton registration for plumbing, electrical or HVAC work, Ohio EPA asbestos licensing if asbestos is involved, and complaint history with the Ohio Attorney General.
Read the FAQWhether you need mold remediation in Dayton, Ohio after a wet spring or mold removal in Dayton, Ohio before you sell, one request reaches several independent companies. Renters can start with the renter and landlord page, and buyers and sellers with the home sale guide.
Requests come from across Dayton, Ohio, including older neighborhoods like Old North Dayton, Dayton View and St. Anne's Hill, and from these Montgomery and Greene County towns. Companies also cover Oakwood, Riverside, Vandalia and Englewood.
No. Dayton Mold Remediation Pros is a free quote service. You describe the mold problem once, and independent mold inspection and remediation companies that work in Dayton, Ohio and the Miami Valley reply with quotes. The company you choose does the work and signs the contract with you. Asking costs nothing, and you are not obligated to hire anyone.
Published guides put remediation at about $10 to $25 per square foot of affected area, so a 100 square foot area often lands near $1,000 to $2,500. This Old House puts a typical job at $1,200 to $3,750. These are published estimates, not quotes. Use the cost guide and calculator, then compare real quotes.
Usually not if you can see or smell the mold. Public Health - Dayton & Montgomery County follows EPA guidance, which says visible mold rarely needs sampling, and there are no federal or Ohio mold limits to compare results against. Testing helps when mold is hidden, for clearance after the work, in a home sale, or when you need documentation.
Ohio does not issue a mold-specific license, and Ohio has no state license for residential general contractors. What you can check: a certificate of insurance, City of Dayton registration for any plumbing, electrical or HVAC work, Ohio EPA asbestos licensing and ODH lead licensing where those apply, and complaint history with the Ohio Attorney General and BBB.
Sometimes. Mold is usually covered only when it follows a covered, sudden water loss such as a burst pipe. Long-term seepage, sump pump failure and sewer backup usually need a separate endorsement, and flood damage needs a separate flood policy. Read your declarations page and call your agent before work starts. No one can promise coverage in advance.
Often, if the patch is small. The EPA says homeowners can usually handle an area under about 10 square feet, roughly 3 feet by 3 feet, if the water problem is fixed. Use soap and water and wear gloves and a mask; Public Health does not recommend bleach. Larger areas, mold inside walls or ducts, or sewage water call for a professional.
Free, no-pressure quotes from independent companies across Dayton, Kettering, Beavercreek, Huber Heights and the Miami Valley.
Dayton Mold Remediation Pros is an independent quote service and is not affiliated with any company of a similar name. Prices are published third-party ranges, not quotes. Images are illustrations.