Restoration
Mold Remediation: Cost, Permits & Timeline
Containing, removing and verifying the cleanup of mold growth after a leak or humidity failure. and one company generally cannot do both on the same job.
Model reviewed August 2026
Typical cost
$4,500
$1,500 – $15,000
per sq ft of affected area
$12 – $35
Permit
Depends
$0 – $300
Timeline
3-10 days of work
3-10 days of work
Do you need a permit for mold remediation?
It depends on scope
Cosmetic, like-for-like mold remediation work is often exempt. A permit is required as soon as you change structure, plumbing, electrical or the building envelope.
What drives the cost
- Affected square footage and number of rooms
- HVAC system contamination
- Containment and negative air equipment
- Demolition and reconstruction of affected assemblies
- Independent clearance testing
Permit, inspections and documents
| Permit status | conditional |
|---|---|
| Typical permit fee | $0 – $300 |
| Licensed contractor required | Usually yes |
| Owner-builder allowed | Yes, on owner-occupied homes |
| Inspections | Post-remediation verification testing, Building inspection if structural repairs follow |
| Timeline | 3-10 days of work |
| DIY difficulty | 4/5 difficulty |
Documents typically required
- • Written remediation protocol from an independent assessor
- • Post-remediation clearance test results
Mold Remediation cost by city
Local labor and material pricing applied to the national baseline.
| City | Typical range | vs national |
|---|---|---|
| New York | $2,600 – $25,800 | +72% |
| Los Angeles | $2,100 – $21,400 | +43% |
| Miami | $1,900 – $19,000 | +27% |
| Chicago | $1,900 – $19,100 | +27% |
| Phoenix | $1,600 – $15,500 | +3% |
| Dallas | $1,500 – $14,900 | -1% |
| Houston | $1,500 – $14,900 | -1% |
| Tampa | $1,600 – $16,100 | +7% |
| Denver | $1,700 – $17,400 | +16% |
| Orlando | $1,600 – $15,500 | +3% |
| Atlanta | $1,500 – $15,100 | 0% |
| Fort Lauderdale | $1,800 – $18,200 | +22% |
Mold Remediation across the country
National pricing, state-by-state pricing, and the tools behind both.
Frequently asked questions
How long does mold remediation take?
3-10 days of work. Permit review and inspection scheduling are usually the largest source of variation.
What changes the price the most?
The largest cost drivers are affected square footage and number of rooms; hvac system contamination; containment and negative air equipment.
Sources
Sources & verification
Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.