Plumbing
Septic System Replacement: Cost, Permits & Timeline
Replacing a residential onsite sewage treatment and disposal system. In Florida these permits are administered through the Department of Health county offices rather than the building department.
Verified August 2026
Typical cost
$13,500
$7,500 – $28,000
per system replaced
$7,500 – $28,000
Permit
Required
$350 – $1,200
Timeline
3-7 days of work
3-7 days of work, 4-10 weeks including health department review
Do you need a permit for septic system replacement?
Yes
Septic System Replacement is permitted and inspected work in nearly every jurisdiction. Typical fees run $350 to $1,200, and a licensed contractor generally has to pull the permit.
What drives the cost
- Tank size based on bedroom count
- Conventional versus mound or performance-based system
- Soil conditions and water table depth
- Lot access for equipment
- Abandonment of the old tank
Permit, inspections and documents
| Permit status | required |
|---|---|
| Typical permit fee | $350 – $1,200 |
| Licensed contractor required | Usually yes |
| Owner-builder allowed | Rarely |
| Inspections | Soil / site evaluation, Tank set inspection, Drainfield inspection, Final cover inspection |
| Timeline | 3-7 days of work, 4-10 weeks including health department review |
| DIY difficulty | 5/5 difficulty |
Documents typically required
- • Onsite sewage treatment permit application
- • Site evaluation and soil report
- • System design drawing
- • Property survey
Septic System Replacement cost by city
Local labor and material pricing applied to the national baseline.
| City | Typical range | vs national |
|---|---|---|
| Miami | $8,900 – $33,000 | +18% |
| Tampa | $7,800 – $29,100 | +4% |
| Orlando | $7,700 – $28,600 | +2% |
| Fort Lauderdale | $8,600 – $31,900 | +14% |
| Jacksonville | $7,200 – $26,900 | -4% |
| West Palm Beach | $8,400 – $31,400 | +12% |
| St. Petersburg | $7,700 – $28,800 | +3% |
| Fort Myers | $8,200 – $30,500 | +9% |
| Cape Coral | $8,000 – $30,000 | +7% |
| Sarasota | $8,100 – $30,200 | +8% |
| Naples | $9,300 – $34,700 | +24% |
| Port St. Lucie | $7,700 – $28,600 | +2% |
Frequently asked questions
Who issues septic permits in Florida?
Onsite sewage treatment system permits in Florida are issued through the county health department under the Florida Department of Health, not the local building department.
Sources
Sources & verification
Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.