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A RocketLevel piece for restoration owners and finance leads, backed by decades of experience in the trade. About a 6-minute read.
A common reason owners talk themselves out of commercial is a math error hiding inside a real number.
The owner looks at a commercial job, sees a lower margin percentage than a typical residential job, and concludes commercial is worse business. The percentage is real, but the bank account runs on dollars, and on dollars commercial often wins by a lot.
A residential mitigation job might run a high margin percentage on a small ticket. A commercial loss often runs a lower margin percentage on a far larger ticket. Compare them on percentage and residential looks better. Compare them on gross-margin dollars per job, the only thing you can actually spend, and it's not close.
A simple way to see it: a mid-size commercial loss can deliver roughly the gross-margin dollars of about 20 residential jobs (RocketLevel working figure). It varies widely by job size, scope, and your own pricing. That's one relationship and one invoice doing the work of twenty. Even at a lower percentage, the dollars that land in your account dwarf the residential job you were comparing it to.
The Restoration Industry Association (RIA) makes this argument itself, which is worth knowing because it is the industry's own benchmark report rather than a vendor making a case. Its worked comparison on page 42 of the 2025 Cost of Doing Business Report, which reports FY2024 results, is worth walking slowly. Take a company averaging $3,000 mitigation jobs at a 15% margin. That is $450 per job in the account. Now take a $25,000 job earning 8%, barely half the margin percentage and the job that would get flagged in any margin review you run. It puts $2,000 in the account, more than four times the money, on the percentage you would have called the worse one. The report's own read: the percentage tells you about operational efficiency and cost control, and the dollars determine cash flow, growth capacity, and whether the business lasts.
The same section shows how sharply the percentage moves with job size, which is the trap. Read page 42 directly and the move from FY2023 to FY2024 is this: in mitigation, companies whose jobs averaged under $5,000 more than doubled mean net profit, from 7% to 15.2%, while companies averaging more than $20,000 fell from 20% to 8.1%. Read only the percentage column and small jobs look like the winning strategy, which the dollar math does not support.
It is an easy mistake to make, for two reasons.
First, margin percentage is the number on every job-costing report, so it is the number owners stare at. Dollars-per-job is something you have to go calculate, and plenty of shops never run it.
Second, residential is a high-percentage, high-volume game, so the instinct is "protect the percentage and do more jobs." That instinct is correct inside residential and does not carry over to commercial, where fewer, larger jobs make dollars per job the number to watch.
Even the dollars-per-job comparison undersells commercial, because it only counts the first job.
A residential job ends at the deductible check, and the relationship is over. A commercial relationship, a preferred-vendor spot or a master service agreement, does not end at the first job. It produces work for years. So the real comparison is one commercial loss, plus everything that relationship produces for the next several years, against 20 residential jobs that each end the day they are paid. Run that out over a few years and the margin-percentage objection does not hold up.