Missouri · Plumbing
Well Installation cost in Missouri
Statewide pricing, permit posture and inspection sequence for well installation in Missouri. Your city or county issues the actual permit — use the local links below to confirm fees.
Verified August 2026
Well Installation cost in Missouri
$5,000 – $22,500
Most Missouri homeowners pay around $9,900, or $22.50–$58.50 per foot of depth. Permit fees typically add $170–$680.
Permit: Yes. Code adoption is local — local adoption of the irc; no statewide residential code.
Cost breakdown
| Budget scope | $5,000 |
|---|---|
| Typical project | $9,900 |
| Premium / complex | $22,500 |
| per foot of depth | $22.50 – $58.50 |
| Permit fees | $170 – $680 |
| vs national baseline | -10% |
| Timeline | 2-5 days of drilling, 3-8 weeks including permitting |
What is different about well installation in Missouri
Permitting varies more within Missouri than between many states — St. Louis County municipalities can require full review while nearby unincorporated areas require little.
Owner-builder: Homeowner permits widely allowed. Well Installation generally requires a licensed contractor to pull the permit, even where owner-builder status is available.
Inspections
- Well completion inspection
- Water quality test
- Final plumbing inspection
What drives the price
- Depth to a reliable aquifer in your area
- Casing diameter and material
- Submersible pump horsepower and pressure tank
- Water treatment for sulfur or iron
- Electrical service to the wellhead
Frequently asked questions
Who issues well permits in Florida?
Florida's five water management districts issue water well construction permits, often delegated to a county health department. The local building department only handles the electrical and plumbing connection.
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.