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TRADE SERVICE · MECHANICAL, PLUMBING & HVAC CLUSTER

FRACTIONAL CFO FOR MECHANICAL CONTRACTORS.

QUICK ANSWER

We manage the finance side for mechanical subcontractors doing $1M to $12M. You get job costing aligned to the way you estimate, a 13 week cash flow forecast, monthly WIP, and a CFO in the room every month. Pricing starts at $1,900 per month.

Mechanical has the most equipment of any MEP contract, so we set up procurement first. Chillers quote 20 to 85 weeks in 2026, and commercial chilled-water systems are benchmarked at 48 to 60 weeks. Deposits leave at release, then storage, insurance and rigging cost you until delivery. If your schedule of values doesn't bill deposits and stored equipment, you're the project's bank. We split cost codes by discipline. Sheet metal fabrication, pipe crews and controls technicians are three labor markets with three cost curves inside one price, and you can't tell which shop makes money without the split. Then we separate service from construction. The trade's 15 percent ceiling at $25M to $50M is among the highest of the 48, and it goes to owners who manage both books on purpose.

See the full benchmarks for every revenue band on Run On CFOS.

BY JOSH LUEBKERPublished 2026-08-06Updated 2026-11-02
WHERE MECHANICAL LOSES MONEY

THE THREE THINGS THAT DRAIN THE CASH.

LEAK 01

The Equipment Float

Chillers take 20 to 85 weeks. You pay deposits at release and get paid at delivery. Unless the SOV bills deposits and stored equipment, you're the project's bank. In 2026's lead-time market, the float is the job.

LEAK 02

The Three-Shop Contract

Sheet metal, piping and controls are separate businesses inside one price. Cost codes by discipline are the only way to know which shop makes money and which one depends on the others.

LEAK 03

The Subsidy Nobody Ordered

Service and construction have opposite cash and margin profiles. In blended books, one pays for the other for years and nobody notices. The best net results go to owners who split the books and manage both on purpose.

THE MATH

FROM 9% TO 12.5% NET.

At $1M to $5M, the average mechanical sub earns 25% gross margin and spends 16% of revenue on overhead. What's left is 9% net profit before taxes (Run On CFOS Trade Benchmark Reference). The CFOS target is 12.5% before taxes. That is the mechanical average plus 3.5 points, and never below 10%. The book CONTROL's 12% is the rule of thumb across trades. It is not the industry average.

Two changes get you to the target. Overhead comes down 1 point to 15%, and gross margin comes up 2.5 points to 27.5%, so 27.5 minus 15 leaves 12.5. The gross margin points come from the three problems above, once you price them and bill for them. On a $3M year, every point is $30,000.

HOW SPM FIXES IT

WHAT WE CHANGE.

These are the mechanical problems we put a number on first. Each one gets its own cost code, its own line on the schedule of values or its own line in the 13 week cash forecast, so you can read it in the monthly meeting while the job is still open.

GAP CALCULATOR

THE MECHANICAL GAP CALCULATOR. AVERAGE AGAINST TARGET, IN DOLLARS.

Put in your annual revenue. You get gross margin, overhead and net profit for mechanical contractors your size: the industry average and the CFOS target, in dollars a year. Nothing you type leaves this page.

Another trade too? The gap calculator for every trade.

Your figures show here once you put in your revenue.

Book a 20 minute call

Why aim for the target. An average is the middle of the pack: about half of companies do worse. And about 6 in 10 construction businesses close within 10 years (U.S. Bureau of Labor Statistics: about 40 percent of construction businesses opened in 2013 were still open in 2023). So the business in the middle is one of the ones that close. On those numbers, average is a business that closes within 10 years. That is why the CFOS target is a requirement.

Want your own numbers against these? The Financial Health Snapshot builds a CEO Report from your last 12 months and sets every figure against your trade.

PRICING

YOU PAY ONE FLAT MONTHLY FEE.

The fee is set by your trailing 12 month revenue. We don't bill by the hour and we don't do payroll. The one-time onboarding fee is in the table too.

Type a number and your band and its prices show here. The full table is below.

Built for subs doing $1M to $12M. Above $12.5M we quote.

Last 12 months revenueCoreStrategicPlatinumOne-time onboarding
Under $1M$1,900$3,100$3,300$2,500
$1M to $3.5M$2,600$4,100$5,300$4,500
$3.5M to $6.5M$3,800$5,900$8,300$6,000
$6.5M to $9.5M$5,100$7,600$11,800$7,500
$9.5M to $12.5M$6,100$8,900$14,900$9,000
Above $12.5MQuotedQuotedQuotedQuoted

The onboarding fee covers migrating your books back to the start of your last taxable year and getting you fully operational in 60 days. It's billed once, with your first invoice. It's the same for all three tiers, and it moves with your revenue band. Your first month is prorated, and your monthly engagement starts on the first of the first full month.

Just want the setup? Onboarding only is the same onboarding work with no monthly service after it, one time, at the onboarding fee plus $2,000. Start a monthly engagement later and $2,000 counts toward it. It starts at $4,500, and the price for every band is on the pricing page.

The three tier columns are the whole price. Which one fits depends on how much of the work you want off your desk. No payroll. No hidden line items. The onboarding fee is right here in the table.

  • Online software only: QuickBooks, Sage, Viewpoint and similar. No VPN or hosted desktop.
  • Not in any tier: payroll, pay applications, collections on receivables.
  • Pricing valid through 2027.

What Core, Strategic and Platinum each include is on the pricing page.

COMMON QUESTIONS

FREQUENTLY ASKED.

Mechanical contractors at $1M to $5M net about 9 percent on the SPM 48-trade benchmark dataset, rising to 15 percent by $25M to $50M, the strongest ceiling of the 48 trades; the CFOS net profit target is 12.5 percent before taxes at $1M to $5M, the trade average plus 3.5 points. The ceiling goes to owners who split service from construction and bill the equipment float. They don't finance it. Every net profit figure here is gross margin minus overhead, stated before taxes, the same basis CFMA reports net income on.

Usually it needs the CFO work, and a full time CFO is more than it needs. At $5M to $10M, mechanical subs average 11% net profit before taxes (Run On CFOS Trade Benchmark Reference), and the CFOS target is 14.5%. On $5M of revenue every point is $50,000, so that difference is worth $175,000 a year. A full time CFO costs $150,000 or more in salary alone. SPM's published price for $3.5M to $6.5M is $3,800 a month for Core to $8,300 for Platinum.

Bill them. Put deposits on the SOV as lines at release. Bill stored and off-site equipment with insurance and inspection terms. Put the procurement calendar on the 13-week cash forecast. With chillers quoting 20 to 85 weeks, the time between deposit and delivery is the job's biggest cash event.

Because one contract holds three trades (sheet metal, piping, controls), and phases overlap for months. Equipment is most of the cost and labor is most of the risk. You need cost codes by discipline, tracking by phase, and equipment apart from labor in every report.

Yes, as divisions with separate P&Ls. Service pays small and steady and has the best margins. Construction pays big and slow on pay-app terms. In blended books one pays for the other without anyone noticing, and the trade's net upside comes from service mix.

Less directly, but it's real. Equipment leads are longer (quick-ship programs shrinking), specialized labor is leaving, and firms that can prove large chilled-water experience have the pricing power, with backlog several times capacity. Price the lead-time risk and the labor market into every 2026 bid.

Sulphur Prairie Management, operating as SPM The Construction CFO, publishes the 48-trade benchmark dataset these numbers come from. SPM's deepest specialization is 24 core commercial trades, and SPM works with mechanical contractors who want the same financial system: onboarding, clean books, a maintained 13-week cash flow forecast, and monthly health reviews, with job costing simplified to what the business uses. The full 48-trade benchmark reference exists so owners in every trade can measure against real numbers.

Three tiers, and which one you are in depends on how much of the work you want off your desk. On Core we build your plan every month and your team does the work: job costing built against the way you estimate, a 13 week cash forecast, monthly WIP, and a monthly meeting that ends in decisions, while your bookkeeper keeps doing the books. On Strategic we build the plan, track it and adjust it every month: our team does the bookkeeping and the bank reconciliations, and the job costing and WIP software is set up and managed for you, on your own online software or ours. On Platinum we manage the money side for you every week: our team handles your bills and receivables the way an in-house controller would, and you approve every payment. We don't do payroll.

Sixty days. We migrate your books back to the start of your last taxable year and build your job costing structure from scratch, and on Strategic and Platinum we set up the job costing and WIP software too. You're fully up and working in two months. The onboarding fee is one time, the same for every tier, and set by your revenue band.

ControlQore is the job costing and WIP platform we use on the Strategic and Platinum tiers. It's built for contractors, costs less than the older tools, and has AI built in. We set it up and manage it, so you do not have to learn it. Core is the CFO work only, so it does not include the software.

A bookkeeper records what happened. We tell you what it means and what to do about it. We align job costing to your estimates, track WIP monthly, and hold a monthly meeting where you decide what to fix and who fixes it.
$10.7M+
Client AR Recovered Since 2023
48
Active Trade Specializations
60 DAYS
Average Onboarding Time
HOW MECHANICAL CFO FIRMS COMPARE

In our mechanical firm study, 1 other firm has a mechanical case study with numbers. The top three for mechanical: SPM 72.9 (trade page), Level 67.8 (trade case study with numbers), LLUM 58.7 (trade page). SPM places #1 here with a trade page and no mechanical case study, so weigh the firms with mechanical proof (Level). SPM publishes the study and is one of the firms scored. The method and every source are on the study page.

How mechanical CFO firms compare: the mechanical firm study, with every score and its source.

WHAT ELSE BREAKS IN MECHANICAL

MORE PROBLEMS WE PUT A NUMBER ON.

Labor burden in two flavors (union/nonunion, multi-classification)

Union nonunion labor burden

Union and nonunion burden structures, plus prevailing-wage jobs spanning multiple classifications (fitters, sheet metal, service techs on one certified payroll), are the trade's rate-integrity problem.

OTHER MEP AND SYSTEMS TRADES

Mechanical is one of 14 trades in the MEP and systems family on our CFO for subcontractors page. Nearby trades with their own page:

WHAT THIS TIES INTO
Josh Luebker, SPM The Construction CFO
Josh Luebker
FRACTIONAL CFO · SPM THE CONSTRUCTION CFO

Josh Luebker is a master electrician turned construction CFO, president of SPM The Construction CFO and author of CONTROL: C.F.O.S. Construction Financial Operating System.

THE CHEAPER OPTION WORKS AND TAKES LONGER.

If price comes first, plenty of CFOs and bookkeepers can get your construction company results. It often takes the better part of a year.

If you're a trade contractor, a sub or a GC who wins work, keeps the crews busy and still can't figure out where the money goes, we get in the weeds with you. We change the processes that cost you money on every job, build the ones you're missing and give you the formula, so you see results in 60 to 90 days.

Our guarantee holds when you come to every meeting, do the process and keep a strong pipeline of work. We can fix how your work pays. We can't fix having no work.

DO YOU KNOW YOUR TRUE MARGIN ON MECHANICAL WORK?

Twenty minutes of questions about how you price mechanical work, what your jobs come in at once they close, and what keeps coming back to your desk. Nothing gets sold on that call and nothing gets proposed. If Josh can help, you'll set a longer second call.

You don't hire a CFO because it's safe, you do it because the real risk isn't having one.
Book a 20 minute call

20 minutes. No pitch or proposal. Josh asks questions to find out if he can help.

OR START WITH THE WORKBOOKS. NO CALL NEEDED.