Mold remediation in Portland means finding and fixing the water problem, containing the moldy area, removing what can't be cleaned and drying everything before repairs. EPA recommends a professional for growth larger than about 10 square feet. Call the number on this page to be connected with a local mold remediation company in Portland.

What happens when you call
You'll be connected with an independent mold remediation company that works in northern Sumner and Robertson counties. Tell them the address first, since Portland spans both counties and a few rules change at the line. Then describe the growth, what got wet and when. Expect a site visit before a firm price.
During the visit, a good company checks moisture levels, looks under the home and in the attic, and explains what it plans to clean versus remove. Ask how it will contain dust and spores, and how it will show the area is dry before closing anything up.
What drives cost
- Area affected. Angi's national data shows $1,223 to $3,758 for a typical job, about $10 to $25 per square foot.
- Home type. About 11 percent of Portland homes are mobile or manufactured. Belly-board insulation and ducts under those homes often have to come out when wet.
- Crawl space or attic access. Tight spaces add hours.
- Rebuild. Replacing drywall, subfloor or insulation may be separate.
- License tier. On the Robertson County side, home jobs from $3,000 to $25,000 call for the state Home Improvement license; Sumner County isn't on that TDCI list. Anything $25,000 or more needs a contractor's license, with S-F as the mold classification.
Middle Tennessee prices vary from the national figures.

Local conditions in Portland
Portland sits on the Highland Rim in far northern Middle Tennessee. The Sumner County Flood Insurance Study identifies Donoho Branch as a frequent flooding source because of sinkholes and local drainage, and the Portland Flood Channel, completed in 1997, was built to reduce that flooding. During the May 19, 2017 flash flooding, there were multiple rescues in Portland. Sinkhole terrain means water can pond in places that aren't near a creek at all. The median house dates to about 1995, and a rental share above one-third means many residents depend on a landlord for repairs. Portland Building Codes handles both rebuild permits and property nuisance complaints inside city limits.
Checklist before the company arrives
- Stop or shut off the water source.
- Photograph the growth and any water lines on walls.
- Keep anyone with asthma away from the area.
- Leave the HVAC off if the ducts may be involved.
- Have your county and any insurance claim number handy.
Mold Removal & Remediation questions in Portland
What should I look for in a Tennessee mold remediation contractor?
I rent. Who do I call if my landlord won't fix a leak?
How soon does mold grow after a flood?
Can we stay in the house during remediation?
More mold services in Portland
Mold Removal & Remediation nearby
Helpful guides
Sources
- Wikipedia: Portland, Tennessee
- Sumner County Flood Insurance Study, Volume 1 (pdf)
- NewsChannel 5: Dramatic rescues play out in Sumner County
- City of Portland Building Codes
- EPA: Mold Cleanup in Your Home
- EPA: Homeowner's and Renter's Guide to Mold Cleanup After Disasters (pdf)
- Angi: How Much Does Mold Remediation Cost? (2026 data)
- Tennessee Contractor Classification Outline (TDCI)
- TDCI: Bidding and Contractor License Requirements (pdf)
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