St. Louis, MO · St. Louis City
Well Installation in St. Louis, MO: Cost & Permits
What well installation actually costs in St. Louis, whether you need a permit, which inspections apply, and how long the job takes.
Verified August 2026
Typical local cost
$11,300
$5,700 – $25,700
per foot of depth
$25.50 – $67
Permit fee
$205 – $815
Modeled allowance
vs national
+3%
local labor & materials
Looking for pricing detail? The full well installation cost breakdown for St. Louis covers cost by size and material, the local cost model and nearby markets.
Do you need a permit for well installation in St. Louis, MO?
Yes
Yes — a permit is required for well installation in St. Louis, MO. The work must be inspected before it can be closed out, and a licensed contractor generally has to pull the permit.
The city is independent of St. Louis County, so the permitting authority differs on either side of the city line for identical projects.
Cost breakdown in St. Louis
| Low endSimple scope, competitive bid | $5,700 |
|---|---|
| TypicalMost homeowners land here | $11,300 |
| High endComplex access, premium materials | $25,700 |
| per foot of depth | $25.50 – $67 |
| Permit fee | Estimated allowance $205–$815Modeled from comparable fee schedules — not an official quoted fee. |
| Permit authority | City of St. Louis building departmentModeled estimate |
| Timeline | 2-5 days of drilling, 3-8 weeks including permitting |
Math: national baseline $5,500–$25,000 × St. Louis cost index 1.00. Permit fees use a 1.02 local multiplier. Estimates, not quotes.
What drives your price here
- 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
Permit process and inspections
| Permit required | Yes |
|---|---|
| Who pulls it | Licensed contractor |
| Inspections | Well completion inspection, Water quality test, Final plumbing inspection |
| Documents | Water well construction permit from the water management district, Licensed water well contractor number, Well completion report, Bacteriological water sample results |
| Apply | St. Louis permit portal |
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.
Well costs in nearby cities
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.
Page data quality: 89/100
- ✓ Verified permit status
- ✓ Official source linked
- ✓ Local cost range
- ✓ Inspection detail
- ✓ Unique local rule
- ✓ Local fee estimate
- ✓ Useful FAQ
- — Relevant calculator
- ✓ Internal links