WATERPROOFING JOBS LOOK PROFITABLE. THE CASH IS STILL IN TRANSIT.
Waterproofing subcontractors run out of cash for reasons specific to how the work is built and billed, on jobs that are making money. The three that cost the most in this trade are below, taken from waterproofing contractor research. Most sit at 75 to 90 days from finishing work to holding the money, and 45 days is achievable.
Cash and profit are measured on different clocks. Your profit and loss records revenue when you invoice and costs when you incur them, while the bank account only knows what cleared. Labour goes out weekly and collects 45 to 90 days later, minus retention. That distance is what a growing, profitable waterproofing company funds out of pocket, and it widens as you grow. The specific things that widen it in this trade are what the rest of this page is about.
WHERE IT LEAKS OUT.
Flood tests, ASTM-standard spray and dam tests on plazas and balconies, and integrity testing gate acceptance on quality-run jobs; on badly run ones, nobody tests until the tenant's ceiling stains. Testing billed as its own line, witnessed and documented, converts the acceptance moment from an opinion into a record, exactly the flooring-moisture and FF/FL discipline applied to membranes.
WHAT MOVES MARGIN IN THIS TRADE.
The Uncharged Premium
The industry spends $8 billion a year fixing failed waterproofing, and below-grade remediation exceeds $150 per square foot. The trade's 26-to-29 percent gross margin is the insurance premium for that tail; discounting it's underwriting catastrophe risk for free.
The Ten-Year Photograph
Buried work gets judged a decade later by whatever paper exists. Photo-documented installation, written substrate acceptance, and witnessed water tests are the only testimony the membrane will ever give.
The Unreserved Callback
Warranties commit future crew-hours against revenue recognized years earlier. A per-job warranty accrual is what separates a 7.5-plus percent net from a company that re-earns its old jobs every spring. (cfos-job-profitability-system) ---
DAYS SALES OUTSTANDING.
Ninety days is weak, 45 is the target, 30 is strong. Nothing else moves cash faster.
| Position | Days | What it means |
|---|---|---|
| Weak | 90 days | Roughly three months of work funded out of your own pocket. |
| Target | 45 days | Achievable on the days you control: submission timing, complete documentation, follow up in week two. |
| Strong | 30 days | Requires discipline every month, and it's the cheapest capital available to you. |
Moving from 90 days to 45 frees roughly annual revenue divided by 365, times 45 days. At $4M that's about $493,000. At $8M it's about $986,000. That money doesn't come from a bank and it costs no interest, which is why we work the cycle before discussing financing anything.
WATERPROOFING BENCHMARKS.
Waterproofing subcontractors at $1M to $5M net 9 percent, against a CFOS target of 11 percent, set at 10 percent before taxes or 3.5 points better than your trade's average at your revenue, whichever is higher. Working capital should sit at 13 percent of annual revenue, and the monthly close should finish by day 10 so the numbers can still change a decision.
FREQUENTLY ASKED.
