How much does foundation work cost in St. Louis? The usual foundation & waterproofing job filed with St. Louis is $11,279, from 301 priced permits (October 2023 through September 2026); the middle half of firms file between $10,125 and $16,200. A filed value is what the contractor wrote on the permit, not a quote or the final bill.
The usual foundation & waterproofing job filed with St. Louis is $11,279, from 301 priced permits, October 2023 through September 2026. The middle half of firms usually file between $10,125 and $16,200. Half of jobs were filed for less, half for more. A filed value is what the contractor wrote on the permit, not a quote or the final bill. A foundation & waterproofing permit here usually takes 296 days from issue to final inspection. How long permits take →
Approximately, from each firm's own spread: every firm's range of filed values, weighted by its 301 priced permits across 53 firms, pooled into one. Half of St. Louis foundation & waterproofing permits were filed between $7,500 and $16,800.
| Percentile | Filed value | Reads as |
|---|---|---|
| 10th | $4,900 | 1 in 10 permits filed below |
| 25th | $7,500 | 1 in 4 filed below |
| 50th | $11,300 | the middle permit |
| 75th | $16,800 | 1 in 4 filed above |
| 90th | $26,100 | 1 in 10 filed above |
Firms split into thirds by the usual value of the homes they work on, with each third's usual filed value weighted by permits. Home values: City of St. Louis assessor values.
| Firms working on | Usual home value | Usual filed value | Firms | Permits |
|---|---|---|---|---|
| Lower third | under $179,834 | $14,000 | 17 | 25 |
| Middle third | $179,834–$219,103 | $10,125 | 18 | 219 |
| Upper third | $222,177 and up | $11,712 | 18 | 58 |
Top 10 by permits in the last 12 months. Usual is each firm's middle filed value; middle half is the range its middle half of jobs were filed in; both are shown for firms with 5 or more priced permits. Busy is not the same as careful: pick what you value to build a list.
| Firm | Permits | Last 12 mo | Usual | Middle half | Finished |
|---|---|---|---|---|---|
| Helitech | 65 | 23 | $9,797 | $6,750–$13,000 | 59.9% |
| Foundation Recovery Systems | 54 | 18 | $11,749 | $8,250–$20,728 | 53.8% |
| Woods Basement Systems | 24 | 10 | $10,790 | $6,680–$15,410 | 69.2% |
| Foundation Recovery Systems by Groundworks LLC | 10 | 10 | $20,500 | $14,250–$28,000 | — |
| Perma Jack of St Louis | 30 | 9 | $10,125 | $6,250–$16,087 | 50.5% |
| Stratum Structural Systems | 9 | 7 | $10,000 | $9,000–$13,000 | — |
| Spartan Ram Jack St Louis | 20 | 5 | $11,712 | $7,051–$19,943 | 75.7% |
| Atlas Foundation Solutions | 11 | 5 | $8,000 | $7,500–$10,637 | 3 of 6 |
| Acculevel | 4 | 2 | — | — | — |
| Woods Basement System | 4 | 2 | — | — | — |
Line your quote up against the file. In St. Louis, 1 in 10 foundation & waterproofing filed values sit under $4,900, the middle half between $7,500 and $16,800, and 1 in 10 over $26,100.
St. Louis files the fewest foundation & waterproofing permits in June (51 against an average month of 100) and the most in December (148). If you can choose, ask for quotes in a quiet month. We have no prices by month, so this is about crews' schedules, not a discount. When each trade is busiest in St. Louis →
Source: City of St. Louis building permits. The window is October 2023 through September 2026; a permit filed after that isn't here yet.
Usual is the middle permit: half were filed for less, half for more. Only permits with a filed value count; a value of $0 or none is left out.
The spread is approximate: we keep seven points of each firm's own range of filed values, not every permit, and pool them.
Nobody paid to be on this page and nobody can. How the records work in St. Louis →
Foundation & Waterproofing cost in other cities: San Diego Colorado Springs Greensboro Arlington, VA Cary Palo Alto Denton San Francisco Wheaton, IL Marin County (unincorporated)
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