National Lien Services partners with Josh Luebker · Recommended for our clients
Cash flow isn’t a mystery. It’s a system.
If you run a mid-sized specialty contracting company—especially in the $5M–$25M range—and jobs look profitable on paper while the bank balance stays tight, you’re not alone. CONTROL: The Construction Financial Operating System by Josh Luebker shows owners how to install numbers they can see—and trust—before growth turns into a cash crunch.
Why mid-sized subcontractors feel cash-strapped
Between retainage, delayed pay apps, change orders, and overhead that never quite matches the estimate, mid-market specialty contractors often grow their top line while starving the business of visibility. Most owners don’t have a money problem—they have a visibility problem.
CONTROL is an eight-step financial operating system built for that mid-market reality: job cost structure, equipment cost basis, overhead, estimating alignment, bookkeeping cadence, project management standards, a monthly CEO report rhythm, and owner accountability—installable in about 60 days. (The framework also serves commercial subcontractors more broadly, from under $1M to $100M.)
- Jobs that “made money” until closeout drained the account
- Overhead rates that no longer match your revenue band
- Estimates and ledgers that speak different languages
- Growth that requires more cash than the company can produce
Know your numbers: overhead, gross margin, and net profit
Josh publishes trade-level benchmarks for 48 trades across 7 revenue bands—1,008 data points tied to CFMA and related industry sources. Pick your trade and size, and you get the average, the CFOS target, and the shortfall you’re carrying.
Here’s a snapshot for common mid-sized specialty trades at the $5M–$10M band (trade average vs. CFOS target):
| Trade ($5M–$10M) | Overhead avg / target | Gross margin target | Net profit target |
|---|---|---|---|
| Electrical | 15% / 15% | 26% | 11% |
| Plumbing | 15% / 15% | 26% | 11% |
| HVAC | 15% / 15% | 26% | 11% |
| Concrete | 13% / 13% | 23% | 10% |
| Drywall | 12% / 12% | 22% | 10% |
Figures adapted from the SPM Trade Benchmark Reference (CC BY 4.0). Compare your trade and revenue band in full at runoncfos.com/find-your-numbers.
The 8-step Construction Financial Operating System
Each step fixes one breakdown and feeds the next. Reading out of order is fine; installing out of order produces numbers nobody trusts.
- Job cost structure — Seven cost categories so the estimate and the ledger use the same words.
- Equipment cost basis — A true internal rate per machine, charged to the projects that used it.
- Overhead calculation — What indirect cost really comes to at your size—and what your bid sheet should carry.
- Estimating system — Estimate maps one-to-one onto job cost codes so variance means something the day it appears.
- Software & bookkeeping alignment — Live job costs inside thirty seconds, with a cadence that keeps them true.
- Project management standards — Billing dates, change orders, and notices that hold without chasing.
- Monthly cadence — Weekly bookkeeping, cost to complete, and one CEO report on the same days every month.
- Standards & accountability — Five hours a month of owner time, spent ahead of the work.
Six chapters include QR codes to working templates. Companion materials: runoncfos.com/control.
What readers are saying
“Josh has thrown down an absolute master class in this exceptionally accessible look at what it really takes to run a successful construction company today—mastering cash flow and risk. Whether you’ve been in the industry for twenty years or twenty minutes, you’ll find at least three ‘Dang, I wished I’d learned that sooner!!’ moments.”
“Most contractors don’t have a money problem. They have a visibility problem. Josh has built the rare book that fixes it the right way: not with a pep talk, but with a system.”
From the book to the back office
National Lien Services is proud to partner with Josh Luebker on bringing clearer cash-flow systems to specialty contractors—because payment protection and financial visibility belong together. When your job costs, notices, waivers, and collections speak the same language, you stop financing projects by accident.
Explore our Construction Back-Office Mastery series for practical workflows on invoicing, lien compliance, waivers, and surviving the cash-flow impacts of growth.