The margin math behind a water restoration business without the jargon

What to take away

The arithmetic below uses letters, not figures. Any number shown is a placeholder to demonstrate the method. Your results depend on your payroll, market and service mix, and belong with your accountant.

The formula, and what each term means

Let F be fixed monthly cost. It includes these items:

Let R be revenue collected per job. Let V be the variable cost of that job:

Contribution per job is C = R minus V. Break-even in jobs per month is F divided by C.

The model is only as good as its inputs. Three failures are common, and each one bends the answer in a predictable direction.

Three ways the model gets populated wrong

Invoiced instead of collected. R should be what arrived, after any scope reduction at review and after any uncollected deductible. On insurance work the invoice and the deposit can sit weeks apart. Using the invoice makes every job look better than it was.

Monitoring visits treated as free. Each visit is labor plus travel on every open job. Left out of V, that cost hides in overhead and makes a two-day dry look identical to a six-day dry.

Overhead pushed into V. Insurance and storage do not rise because you took one more job this month. They belong in F. Putting them in V understates contribution and produces a break-even you can never reach.

Worked through with placeholders

Suppose contribution per job C comes out at one tenth of F. Break-even is ten jobs a month.

Now raise average drying time by two days across the board. Equipment days and monitoring visits both rise, C falls, and break-even climbs to eleven or twelve jobs. No price changed.

That is the lesson in the arithmetic. Break-even in this trade moves with drying performance far more than with pricing, because variable cost is dominated by time on the job, not materials.

The fastest route to a lower break-even is finishing jobs on plan. That is a drying setup and technique question, not a commercial one. Daily moisture readings logged to the file are what let you prove the dry finished on schedule when a reviewer asks.

The second break-even: open jobs

Every open drying job needs a monitoring visit each day. Divide a technician's available field hours by the average time one visit takes, travel included in your actual service area, and you have the number of open jobs one technician can service.

Past that number you are either skipping visits, which costs you the scope at review, or paying overtime, which costs you contribution. Both land as a bad month with no obvious cause.

This number also tells you when the next technician is required by arithmetic rather than by feel. The cost of that hire, and what to look for in the person, is set out in the hiring and training guide.

The equipment break-even

A dehumidifier has a purchase cost, a maintenance cost and a service life. Divide the total by the days it will actually sit on jobs, and you have cost per earning day. Compare that to what an equipment day earns and you have the utilization at which the unit pays for itself.

Run this before every fleet purchase. The same unit costs twice as much per earning day at half the utilization, and no price rise fixes that. Refrigerant and desiccant units carry different purchase costs and different drying profiles, so the two fleets need separate arithmetic.

Measuring it without new software

You need three things per job: what was collected, what it cost in labor and equipment days, and how long it took. All three come out of the job file and the payroll record, which is the recordkeeping the Internal Revenue Service: What kind of records should I keep? guidance expects anyway.

Use a real wage input rather than a guess. The area estimates in the U.S. Bureau of Labor Statistics: Occupational Employment and Wage Statistics Tables are a useful check on whether the labor rate in your model resembles what you would have to pay to replace the person.

Margins and what you may claim about them

Nothing in this analysis should turn into a marketing claim. Statements about savings, guaranteed outcomes or price comparisons have to be supportable, and the Federal Trade Commission: Advertising FAQs: A Guide for Small Business guidance sets out what that requires. Internal arithmetic is for deciding what to charge, not for advertising copy.

The rate-building method that feeds this model is in the walkthrough on pricing for a fair margin, the wider architecture in the billing models guide, and the staffing constraints in the restoration business hiring piece.

Common questions

What is a normal margin in water restoration?

There is no figure worth repeating, because payer mix, service mix and labor cost differ so much between companies that call themselves the same thing. Compare your own margin to your own last quarter.

Should break-even be calculated per service line?

Yes, once you have enough completed jobs to do it honestly. A blended break-even hides a line being carried by another, which is the most common finding when companies first split it out.

Does adding a second crew lower break-even?

No, it raises F, and it raises capacity. Whether that is worth doing depends on whether the demand is there, and whether the open-job arithmetic above says the crew is already at its limit.

How often should this be recalculated?

Quarterly, and immediately after any change in insurance, payroll or vehicle cost. Fixed costs move quietly and break-even moves with them.