WHY WATERPROOFING CONTRACTORS RUN OUT OF CASH.
Waterproofing contractors run out of cash because the scope is buried in the schedule and paid the slowest. Specialty membranes and sealants are bought ahead on short supplier terms, billing comes late because the work sits deep in the sequence, and retention is held long because waterproofing carries warranty risk. Callbacks eat margin after closeout. The job profits while the cash is held.
Waterproofing has a healthy gross margin and a punishing cash profile. Your scope tends to sit deep in the schedule, so you bill later than the trades around you while your labor and material are already spent. The specialty materials, membranes, sealants, and coatings, are bought ahead on short supplier terms while the GC pays Net 30 to 45. And because waterproofing carries warranty and water-intrusion risk, retention is held long, sometimes well past closeout. Callbacks then consume margin on jobs you thought were finished. None of this shows on the income statement in time. CFOS structures the billing, the holdback, and a callback reserve so the cash is not hostage to the schedule and the warranty.
WHY WATERPROOFING WORK EATS CASH.
Waterproofing is a high-margin trade with one of the hardest cash profiles in the structural cluster. The first problem is schedule position: your scope sits deep in the sequence, so you bill later than the trades you follow while your labor and material are already out the door.
The second is material timing. Specialty membranes, sealants, and coatings are bought ahead on short supplier terms, and the GC pays Net 30 to 45 on a monthly pay app, so you finance the buyout. The third is the holdback. Because waterproofing carries warranty and water-intrusion risk, GCs hold retention long, sometimes well past substantial completion, and that last slice of cash is the hardest to collect.
On top of all of it sit callbacks. Waterproofing gets called back when water shows up, and that work consumes margin on jobs the income statement already recorded as profitable. The result is a trade that looks healthy on paper and runs tight in the bank, because the late billing, the long holdback, and the callback cost never land on the P&L in time.
THE MECHANISMS NO ONE PRICES IN.
Buried in the sequence means paid the latest.
Waterproofing sits deep in the construction schedule, so you bill after the trades around you while your labor and material are already spent. The cash comes back well after it went out, and the income statement never shows the gap because the cost is captured into the job, not against cash.
You finance membranes the GC pays for in 45 days.
Membranes, sealants, and coatings are specialty materials bought ahead of application on short supplier terms, while the GC pays Net 30 to 45 on the monthly pay app. On a large package that buyout is financed out of your cash or line of credit, and it never appears as a job cost.
Warranty risk means your cash is held the longest.
Because waterproofing carries water-intrusion and warranty risk, retention is held long, often past closeout, and the last slice of cash is the hardest to collect. Callbacks then consume margin on jobs the income statement already booked as profitable, so the real result lands months later.
THE WRONG DIAGNOSIS COSTS YOU YEARS.
Wrong answer 1: the GC always holds our money. The long holdback is real, but it is a contract structure you can negotiate and track, not a fact you have to absorb.
Wrong answer 2: our margins should cover it. The gross margin is healthy, which masks the problem. A good margin held for months and chipped by callbacks still leaves you short on cash.
Wrong answer 3: callbacks are just part of the trade. Some are, which is exactly why they should be reserved for, not absorbed as a surprise against a closed job.
The real answer: billing is not structured to your schedule position, the long holdback is untracked, and there is no callback reserve. A high-margin trade with no cash controls still runs out of cash. CFOS builds the controls.
SAME BUSINESS. BETTER SYSTEM.
CFOS is the Construction Financial Operating System. For waterproofing contractors it installs as a set of specific deliverables, not advice:
FLAT MONTHLY FEE. NO SURPRISES.
Two tiers based on trailing 12-month revenue. No hourly billing. No payroll. No add-ons. Everything included in the flat monthly fee.
| Revenue | Core Financial | Executive Financial |
|---|---|---|
| Under $1M | $1,900/mo | $2,900/mo |
| $1M–$3M | $2,600/mo | $3,600/mo |
| $4M–$6M | $3,800/mo | $5,500/mo |
| $7M–$9M | $5,100/mo | $6,900/mo |
| $10M–$12M | $6,100/mo | $8,500/mo |
| $13M+ | Quoted | Quoted |
FREQUENTLY ASKED.
