Industries
Concrete and Foundation Contractor Funding
Ready-mix and pumping land on pour day, retainage waits for the whole project, and weather moves the schedule. How concrete contractors fund the gap.
The short answer
Concrete and foundation contractors often fund the costs that land at the start of a job — ready-mix, pump trucks, rebar, forming and weekly crew payroll — with short-term working capital sized to that gap and repaid as monthly pay applications clear. Because concrete comes early in the build sequence, retainage is often held until the whole project closes, so plan that long tail separately.
Key takeaways
- Concrete is first in and often last paid: the foundation is done in the opening months, but retainage commonly waits for the whole project to close.
- Ready-mix, pumping, rebar and forms are paid on or near pour day, weeks before the pay application that bills them is paid.
- Cold, rain and cure time move the pour schedule; payroll and equipment rentals keep running while the billing waits.
- Flatwork and structural work are different cash flows — name the mix and the file reads on its real shape.
- A pump truck or mixer belongs with equipment financing, and disputed work or an underbid job is not a timing gap.
Concrete has an unusual place in the build sequence. You are among the first trades on site and among the first to finish: footings, foundation walls, slab on grade, sometimes the elevated decks, done in the opening months of a job. Then you move on — and a slice of every payment you earned stays behind, waiting for a project you are no longer on to reach the end.
Meanwhile the costs of the work land fast. Concrete is commonly paid for around the day it is poured, and the crew that places it is paid weekly. Here is how that cash cycle actually runs, where it pinches, and when funding is the wrong answer.
First on site, last to see retainage
On commercial work, retainage — commonly 5 to 10 percent of each payment — is often held until the project reaches substantial completion, not until your scope does. For a finishing trade, that wait may be a few weeks. For the foundation sub, it can be the better part of a year: the footings went in during month two of a fourteen-month building, and the hold stays until the drywall, the paint, and the punch list are done above them.
Some contracts allow early-finishing trades to have their retainage released when their scope is accepted, or reduce the hold after a completion milestone. It is worth negotiating before you sign, because once the slab is poured your leverage is gone. The full math on how a hold eats into payroll is in our piece on retainage cash-flow math.
Ready-mix, pumps and rebar get paid before the concrete cures
A pour day concentrates cost like few other days in construction. The ready-mix arrives by the truckload, and suppliers commonly want payment on delivery or on short account terms. The pump truck bills by the hour or the day, often with a minimum. Rebar was fabricated to your shop drawings and delivered before the pour. Forms and accessories are rented or bought. The finishing crew is on site before dawn. All of it is paid within days. The pay application that bills the pour goes in at the end of the month and pays 30 to 60 days later — less retainage.
Put hypothetical numbers on a single slab pour. Say it takes 180 yards of concrete at $175 a yard — $31,500 — plus $3,000 of pumping, $12,000 of rebar and accessories already on site, and $9,000 of crew time for the week. That is roughly $55,000 out the door around one pour day, against a billing that might arrive seven or eight weeks later at ninety cents on the dollar. Stack three or four pours a month across jobs and the float runs well into six figures.
| Cost | When it is usually paid | When it is usually billed and collected |
|---|---|---|
| Ready-mix concrete | On delivery or on short account terms | Next monthly application, paid 30–60 days after submission |
| Pump truck and placing equipment | Around the day of the pour, often with a minimum charge | Folded into the same application |
| Rebar, mesh, and embeds | On fabrication or delivery, before the pour | When installed, or as stored material where the contract allows |
| Forms and accessories | Rented monthly or bought up front | Spread across the work in place |
| Crew payroll | Weekly | Monthly application, paid weeks later |
| Retainage | Not applicable — it is withheld from you | Commonly 5–10%, held until the whole project reaches substantial completion |
Weather and cure time move your schedule, not your payroll
Concrete is the trade most at the mercy of the forecast. Rain scrubs a pour. Heat shortens working time. Cold changes everything: the National Ready Mixed Concrete Association's guidance on cold-weather concreting says fresh concrete should be protected from freezing until it reaches about 500 psi, roughly two days after placement; that a 20°F drop in concrete temperature roughly doubles setting time; and that forms should generally stay in place one to seven days depending on strength gain and conditions. Blankets, enclosures, heaters, and accelerating admixtures all cost money.
Every one of those delays moves the billing, because you cannot bill a pour that has not happened. None of them moves payroll, because a crew you send home for a week may not come back. That is the shape of the concrete cash squeeze: costs that keep arriving while the work — and the pay application behind it — waits on the weather. In northern markets the winter slowdown adds a gap of its own, covered in funding the winter slowdown.
Flatwork and structural concrete are two different cash flows
Flatwork and slab foundations for home builders — driveways, patios, sidewalks, garage slabs — run short jobs that pay on completion or on the builder's draw schedule, with frequent, smaller deposits. Commercial structural work — spread footings, grade beams, elevated decks, tilt-up panels — runs on monthly pay applications, retainage, and often a bond, with fewer, larger deposits and longer waits. Many concrete contractors do both, and blended on a bank statement the two can look erratic when they are really two clean patterns.
Funding is the wrong tool for disputes, bad bids, and pump trucks
- A pump truck, a mixer, a skid steer, or a laser screed is a multi-year asset. Equipment financing, where the machine secures a longer term, is usually the right tool; working capital fits the shorter cycle around it.
- A cracked slab, failed cylinder breaks, or a backcharge dispute is not a timing gap. Borrowing against money that may never release turns a dispute into a debt — documentation and, where needed, a construction attorney come first.
- If a job was bid before a ready-mix or rebar price increase with no escalation clause and now loses money, capital funds the loss at a larger scale. The fix is in the bid.
- If every job leaves you short between pours, the issue is pricing or payment terms, not timing. Capital can carry a gap; it cannot subsidize terms that never clear.
- If the money would make payments on an existing advance, that is stacking. Pay a position down first, then take another look.
Make the file read like your pour schedule
Underwriting starts with deposits: their level, how consistent they are over time, how long the business has run, and how much is already committed to other financing. A concrete contractor's statements carry pour-day spikes, weather gaps, and seasonal quiet months. A lump you explain is context. A lump we have to puzzle over is a question — and questions cost days.
- 1
List open jobs by stage
Which are flatwork on builder schedules and which are structural on monthly applications; what was billed last month and when it should pay.
- 2
Put a number and a date on your retainage
Retainage held by job, with the realistic release date — the project's closeout, not your last pour. It is earned money your statements cannot show.
- 3
Size to the pour schedule, not the contract
Fund the deepest gap between pour-day costs going out and applications coming in, and plan to clear it as those applications pay. Right-sized beats bigger.
From there it is one dedicated advisor, start to finish, and a decision made in-house; once documents are signed, the move to funds is measured in days, not weeks. If you are paid in lumps, read how any funding agreement handles early payoff before you sign it.
Sources
- [1] CIP 27 — Cold Weather Concreting — National Ready Mixed Concrete Association (2014). Protect fresh concrete from freezing until it reaches about 500 psi, roughly two days after placement; a 20°F temperature drop approximately doubles setting time; forms should not be stripped for 1 to 7 days depending on strength gain and conditions.
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Frequently asked questions
Can a concrete contractor get working capital while retainage is held until the project closes?
Bridging the stretch while earned retainage waits on a project you have already left is a common use of short-term working capital. Size it to the payroll and supplier bills due before the release, not to the retainage balance, and state the held amounts and realistic release dates when you apply.
How do concrete contractors pay for ready-mix before the GC pays them?
Most carry it with supplier account terms, cash reserves, a bank line, or short-term working capital sized to the pour schedule. Because ready-mix and pumping are paid within days while the pay application pays weeks later, the gap repeats with every pour; funding it makes sense when the job's margin comfortably covers the price of carrying it.
Do winter or rain delays hurt a concrete company's funding application?
Not when they are explained. Weather-driven and seasonal dips are normal for the trade, and underwriting weighs how consistent deposits are over time. A dip you explain — the months you do not pour, the jobs that slipped — reads as context rather than volatility.
Should I use working capital to buy a concrete pump truck?
Usually not. A pump truck is a multi-year asset best matched with equipment financing, where the truck secures a longer term. Working capital fits the shorter-cycle costs around it — ready-mix, crews, and the wait on pay applications.
Can I get funding if a GC is withholding payment over a cracked slab?
That is usually a dispute, not a timing gap, and borrowing against money that may never be released can turn it into a debt. Document the work, protect your lien rights, and work the dispute; capital fits approved work that is simply waiting to be paid.
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Published by Express Capital Funding, a direct lender to U.S. small and mid-sized businesses. This article is general information, not financial, legal, or tax advice, and is not an offer or commitment to lend.
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