Radon Mitigation System in St. Louis, MO — Costs $817 to $3,063
What does radon mitigation system cost in St. Louis? Average $1,532, ranging $817–$3,063. Labor runs $31.46/hr locally — 2% above the national average. Free breakdown with material + labor split.
St. Louis, MO Market
+2% vs nationalLabor Rate
$31.46/hr
Material Index
97
Avg Permit Cost
$1,491
Median Home Price
$238,249
St. Louis is a mid-sized city in Missouri with a healthy pool of local contractors. Homeowners generally have several options to compare for a radon mitigation system, which helps keep pricing competitive. Costs in St. Louis run slightly above the national average, though the gap is modest enough that smart material choices and timing can close it. At a median home price of $238,249, homeowners in St. Louis should weigh the project cost (0.6% of home value) carefully against expected returns to avoid over-improving for the local market.
Low Estimate
$817
National: $800
Mid-Range
$1,532
National: $1,500
High End
$3,063
National: $3,000
Per Sq Ft
$0
National: $0
Radon Mitigation System Cost Calculator for St. Louis
Adjusted for St. Louis's labor rate ($31.46/hr) and material costs (index 97).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in St. Louis
$1,471
Based on 200 sq ft at mid quality, adjusted for St. Louis market rates.
Local Cost Breakdown
At St. Louis's average rate of $31.46/hr (5% above national avg)
Material cost index 97 (3% below national baseline of 100)
Radon Mitigation System vs. Home Value in St. Louis
| Metric | St. Louis | National Avg |
|---|---|---|
| Radon Mitigation System (Mid-Range) | $1,532 | $1,500 |
| Median Home Price | $238,249 | $350,000 |
| Project as % of Home Value | 0.6% | 0.4% |
| Estimated ROI | 35% | 35% |
| Median Household Income | $50,044 | $75,000 |
What Affects the Price in St. Louis
- 1Local labor rates ($31.46/hr in St. Louis)
- 2Material cost index (97 vs national 100)
- 3Number of suction points
- 4Fan size
- 5Pipe routing
- 6Basement vs slab foundation
Popular Upgrades
- Continuous monitor with alarm
- Sealed sump pit lid
- Fan diagnostic gauge
Other Projects in St. Louis, MO
Whole House Generator Installation
$15,081
HVAC System Replacement
$12,018
Whole House Plumbing Repiping
$10,211
Spray Foam Insulation
$8,106
Second Story Addition
$201,867
Accessory Dwelling Unit (ADU) Construction
$151,400
Room Addition
$90,840
Home Addition
$80,432
Radon Mitigation System in Other Missouri Cities
Planning a Radon Mitigation System in St. Louis
A radon mitigation system typically doesn't require a permit in St. Louis, which simplifies planning. However, always confirm with the local building department before starting, especially for structural changes. Expect the project to take 4-8 hours to complete.
A radon mitigation system is a complex project best left to licensed professionals. In St. Louis, skilled contractors charge an average of $31.46/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
For the median St. Louis household earning $50,044/year, this project at $1,532 represents a significant investment. Consider financing options or phasing the work to spread costs over time.
Radon Mitigation System — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
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