Guides
Auditing the eight sections of an HVAC contractor business plan
Each of the eight sections of an HVAC contractor business plan, with the question it must answer, the evidence it needs, and the failure it prevents.
What to take away
- Treat the plan as an audit rather than a narrative. Every section exists to answer one question with evidence attached.
- If a section cannot name its source, it is a wish and it should be marked as one.
- The qualification section comes first, because it constrains everything after it.
- A plan with no stated failure condition cannot be tested, which makes it advertising addressed to yourself.
- Lenders and licensing bodies read for different things. Write once, and know which reader each section is for.
How to audit a section
For every part of the plan, ask three questions in order.
What decision does this section support? Where did the number or claim come from? What goes wrong if this section is wrong?
A section that cannot answer all three is filler. Cut it or mark it as an assumption to be tested, which is honest and much more useful than confident prose.
The eight sections and what each one owes
| Section | The question it answers | The evidence it needs |
|---|---|---|
| Qualification and permissions | What may this business lawfully sell? | Written answers from the licensing body and the code official |
| Service definition | What work is in, and what is refused? | A list short enough to deliver today |
| Market | Who buys this here, and why now? | Local climate, building stock, fuel mix, verified locally |
| Operations | How does a job get done and proved? | The job workflow and the handover documents |
| People | Who does the work, and what may each person sign? | Roles, certifications held, and the training plan |
| Financial model | What must a day earn to work? | Your own supplier, insurance and wage quotes |
| Cash plan | Can it survive the quiet quarter? | Month-by-month cash, not annual totals |
| Risks and stop conditions | What would make you change course? | Named conditions with thresholds you set |
Section one: qualification and permissions
Write this first because everything else is downstream of it.
Qualification and permissions checklist
- Contractor registration held or applied for
- Who the registration attaches to
- What the registration permits
- Refrigerant certification checked against EPA Section 608
- Mechanical code edition your jurisdiction enforces
- What a permit application requires
State which contractor registration the business holds or has applied for, who it attaches to, and what it permits. State the refrigerant certification position, checked against the EPA Section 608 technician certification program rather than against memory. State which mechanical code edition your jurisdiction enforces and what a permit application requires.
Worked example, filled in. Registration: a mechanical contractor licence held by the firm, with the qualifying party named on the state licence record. Refrigerant: every technician who opens a circuit holds Section 608 certification, Type II for high-pressure split systems and Universal where low-pressure chillers are serviced. Code: the jurisdiction enforces a named edition, in this example the 2021 International Mechanical Code, and the permit lists the scope, the equipment listing and the licensed installer.
The failure this prevents: a plan for work you cannot permit, discovered after the vehicle is bought.
Section two: what you sell
The service definition and the market section are usually written as one paragraph of ambition. Split them.
The service list is a promise about competence. The question is what work is in and what is refused. The evidence is a list short enough to deliver this month, with the price and margin on each line known. Name the jobs you turn down and where you send them.
Section three: the market
The market section is a set of local facts: climate load, building stock, fuel availability, tenure mix, and what the existing firms in the area refuse to do. Each fact needs a source, and the sources are local.
Three sources, and what to pull from each. The building department counter: permit volume for residential changeouts over the last four quarters.
The utility program pages: which rebates are funded this year and which fuels they favour. Your supplier: lines in stock, lead times, and what contractors near you are buying.
The verification method for both, and the four questions worth asking, sit in the startup and market guide.
The failure this prevents: a service list built for a market that is somewhere else.
Section four: operations, written as a workflow
One job, call to closed invoice
- Booking
- Diagnostic
- Quote
- Order
- Install
- Startup readings
- Handover pack
- Invoice
Name the document produced at each step. A plan that describes operations without naming documents describes an intention.
The vehicle, instruments and stock the workflow assumes are the subject of the equipment and setup guide, and the phased order in which the whole thing is stood up is in how to start an HVAC contractor business.
A business that can do the work but cannot prove it or bill it promptly is the risk here.
Section five: people, by what they may sign
The weakest section in most plans, because it lists headcount instead of competence.
People by what they may sign
- What each role may do unsupervised
- What certification that depends on
- How long training takes to productivity
- Who handles refrigerant
- Who does combustion work
- Who holds the licensed signature
For each role, state what that person may do unsupervised, what certification it depends on, and how long training takes before they are productive. Refrigerant handling, combustion work and anything requiring a licensed signature belong to specific people, not to the payroll in aggregate.
How that ladder is built is covered in the hiring and training guide, and the practical hiring method is in how to hire reliable staff for an HVAC contractor business.
The risk: growth plans that assume a scarce, certified person will join a new firm on schedule.
Section six: the financial model
The financial model derives what a day must earn from your own quoted costs. Wage inputs can be sanity checked against the area estimates the Bureau of Labor Statistics publishes for the relevant occupations, which are an input rather than a plan.
Worked example, sample inputs replaced by your own quotes. Two field staff at 2,000 paid hours each is 4,000 hours. At 60 percent billable, that is 2,400 billable hours.
Annual costs of 210,000 dollars across wages, vehicle, insurance and overhead, divided by 2,400, is 87.50 dollars an hour. Add 15 percent and the day must earn about 100 dollars an hour.
Section seven: the cash plan
The cash plan is monthly and shows the quiet quarter as it actually falls. Equipment is often paid for before a customer pays you, so a profitable month and a solvent month are not the same month.
Sample: payroll, insurance and vehicle payments of 18,000 dollars a month against 11,000 dollars collected in February is a 7,000 dollar hole. The plan has to show that hole before it happens.
Set the registrations and the recordkeeping up so the numbers exist to check later. The IRS guidance on starting a business covers what to establish at the outset, and the SBA business guide covers the structural decisions around it.
Two readers. A lender starts with the cash plan, the qualification section and the risks. A licensing body starts with the qualification and people sections, because it checks who may sign.
The risk: running out of money in a profitable year.
Section eight: stop conditions
Write three, each with a number or a date attached. Three that hold:
- Cash floor. Two months of fixed costs in the operating account. At 14,000 dollars a month, that is 28,000 dollars. Below it, hiring stops.
- Months under break-even. Two consecutive months below the break-even figure from section six trigger a repricing, not a third month of waiting.
- Callback rate. More than 5 percent of jobs returning for the same fault inside 30 days triggers a review of the workflow before any new service line is added.
Set them while you are calm, so someone else can see when one has been crossed. Left unwritten, a slow decline is visible afterward and named by nobody at the time.
Outline to copy
Copy these eight headings and fill each one.
- Qualification and permissions. What may this business lawfully sell? 150 to 250 words.
- Service definition. What is in and what is refused? 100 to 200 words.
- Market. Who buys here and why now? 200 to 300 words, one source per fact.
- Operations. How does a job get done and proved? 200 to 300 words.
- People. Who does the work, and what may each person sign? 150 to 250 words.
- Financial model. What must a day earn to work? 200 to 300 words, with the arithmetic.
- Cash plan. Can it survive the quiet quarter? One row per month.
- Risks and stop conditions. What would make you change course? Three thresholds with numbers.
Each section states the question it answers, the evidence it needs and what can go wrong if it is wrong. Keep the whole plan under ten pages.
Common questions
How long should the plan be?
Short enough that you reread it. Eight sections that each answer their question beat forty pages that answer none.
Does a lender want the same document?
Not quite. A lender reads the cash plan, the qualification section and the risks first. Keep one plan and put those three where they can be found.
How often should it be revised?
When an input moves rather than on a calendar. Insurance renewal, a wage change, a licensing change or a new service line each trigger a revision of the sections they touch.
What if I cannot answer a section?
Write down that you cannot, and what you would need to answer it. An acknowledged gap is a task. A confident guess is a liability.
