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§ Sheet LP / 06 · For St. Louis, MO foundation contractors

St. Louis, MO
FOUNDATIONS ESTIMATING.

St. Louis foundation contractors: go from site walkthrough to priced bid in 8 minutes. Free tier, no credit card, 25 trades supported.
§ St. Louis fast facts

QUICK ANSWERS.

Do I need a specialty license to pull foundation permits in St. Louis City?

Yes. St. Louis City requires a licensed general contractor or a specialty structural contractor license to obtain foundation permits. The City Building Division issues contractor licenses separately from St. Louis County, and county municipalities each maintain their own registration requirements — so if you work across both city and county, verify your license status with each jurisdiction before bidding.

§ Built for St. Louis

LOCAL FACTS.

FOUNDATION CONTRACTOR LABOR RATE — ST. LOUIS METRO.

Journeyman mason/foundation crew wages in the St. Louis metro average approximately $32–$38/hr for non-union crews and $44–$52/hr for union labor under LIUNA Local 110 agreements, compared to the Missouri statewide average of roughly $28/hr for construction laborers (BLS, 2023).

ST. LOUIS CITY BUILDING PERMIT FEE — FOUNDATION REPAIR.

St. Louis City Building Division typically charges a base permit fee starting at $75 plus a valuation-based fee (approximately $8–$14 per $1,000 of project value) for structural foundation work. A $25,000 foundation repair job carries an estimated permit cost of $275–$425 depending on scope classification.

EXPANSIVE CLAY SOIL PREVALENCE IN ST. LOUIS.

Hoyleton and related high-shrink-swell clay soils cover large portions of St. Louis City and County, with plasticity indices commonly in the 25–45 range. The Missouri Geological Survey identifies this zone as moderate-to-high foundation movement risk, directly increasing repair frequency and average job complexity compared to markets with stable glacial soils.

AGING HOUSING STOCK — FOUNDATION REPAIR DEMAND DRIVER.

Approximately 47% of St. Louis City housing units were built before 1950 according to U.S. Census ACS data, with a large share featuring full-depth masonry basements and original rubble-stone or unreinforced concrete footings. This creates a consistently high volume of repair and waterproofing work that skews average job size and scope complexity upward relative to newer Sun Belt markets.

§ Why foundations pros in St. Louis use Estimate.Pro

THE BID ENGINE.

## Foundation Work in St. Louis Is Not Generic Work St. Louis sits on expansive clay soils — particularly the Hoyleton and Virmond series common across the metro — that shrink and swell with moisture. That means foundation contractors here deal with lateral movement, slab heave, and basement wall failures that contractors in drier markets rarely see. Your estimates have to account for soil conditions, drainage corrections, and repair complexity that a generic bid template will get wrong. Add in the city's aging housing stock — a significant portion of St. Louis homes date to before 1950, with full-depth masonry basements and original rubble-stone footings — and you are frequently bidding jobs where scope uncertainty is high from the first site visit. Getting the number wrong costs you either the job or the margin. Estimate.Pro is built for exactly that kind of complexity. ## From Walkthrough to Bid in 8 Minutes When you walk a foundation job, you are collecting a lot of information fast: crack patterns, efflorescence, floor elevation differentials, drainage grades, wall bow measurements. The last thing you need is to go back to the office and rebuild that information from scratch in a spreadsheet. Estimate.Pro lets you capture the site as you walk it. On supported devices, the AR measurement tool uses ONNX-assisted live detection to measure wall lengths, step-crack runs, and floor elevations on screen. Camera and photo measurements are flagged as estimates so you always know what's confirmed vs. approximated. The AI scope-of-work engine reads your inputs and drafts line items — pier installation, wall reinforcement, crack injection, drainage tile, waterproofing membrane — based on what foundation work in this region actually requires. Median time from walkthrough to a sendable bid: 8 minutes. ## Priced for St. Louis Labor and Material Reality The saved material cost workspace in Estimate.Pro lets you store your actual supplier prices from local yards and concrete suppliers in the metro. When material costs shift — and ready-mix prices in St. Louis have moved with fuel and aggregate costs — you update your workspace once and every future estimate reflects it. You are not re-keying prices job by job. Labor rates for foundation work in the St. Louis metro run higher than Missouri state averages given union density and prevailing wage requirements on public projects. Your cost data stays in your workspace, not locked in a vendor's database you can't edit. ## Permits and Code in St. Louis City and County Foundation permits in St. Louis City are pulled through the Building Division and require a licensed contractor with a specialty license for structural work. St. Louis County municipalities — Chesterfield, Ballwin, Kirkwood, Webster Groves, and others — each have their own building departments, which means permit fee schedules and inspection requirements vary by address. Knowing which jurisdiction you are in before you bid affects your timeline and your overhead. Estimate.Pro lets you add permit line items directly to the scope. You name the fee, you own the number. Nothing is hidden in a platform markup. ## Pricing That Fits a Foundation Operation Estimate.Pro runs on a free forever tier — no credit card required, no expiration. When your volume justifies it, Pro is $39 per seat per month and drops the platform fee on Stripe Connect payments to 0% on Pro+. Elite at $79 per seat per month adds invoice exports and full Stripe Connect workflows for larger jobs. If you run a crew, the $399 flat monthly Crew plan covers the whole team. No percentage taken on your bid volume. No per-estimate charges. ## Built for 25 Trades, Including Yours Foundation contractors in St. Louis often work alongside waterproofing crews, excavation subs, and concrete flatwork operations. Estimate.Pro covers all 25 trades in one place, so if your operation spans foundation repair, drainage correction, and flatwork, you are building those estimates in the same system with the same cost data. If you are tired of bids that take half a day and still get contested on scope, Estimate.Pro is worth the 8 minutes to find out.
§ Equip the crew

Bid faster in St. Louis.

14-day Pro trial, no card. Free forever fallback. Built for foundation contractors.