An HVAC business plan is a written answer to five questions: what work you will sell, who will buy it, what licenses and money you need to start, how you will price it, and how you will survive the slow months between cooling and heating season. Lenders usually want the SBA's traditional format. Below is an outline you can copy, then section-by-section guidance.
This guide is written for owner-operators: a technician going out on their own, or a small shop writing its first real plan to get a loan or a line of credit. It is not a fill-in-the-blanks template. A template gets you headings. The work is in the numbers and decisions under each heading, and that is what most of this page is about.
Is HVAC a good business to start?
Demand is the easy part to document. The US Bureau of Labor Statistics counts about 440,900 HVAC mechanic and installer jobs in 2025, projects employment to grow 11 percent from 2025 to 2035 (much faster than the average for all occupations), and expects about 40,600 openings a year over the decade. BLS puts the median wage at $61,010 a year as of May 2025. Put those figures in your market analysis: they tell a lender the trade is growing and that skilled labor will stay tight, which matters for your hiring plan.
The harder parts are local. Demand for heating and cooling work is real everywhere, but your plan has to show why customers in your service area will call you instead of the shops already there. It also has to show you can cover payroll and truck payments in the shoulder months, when the phones go quiet. A good HVAC business is a licensed, well-run one with recurring revenue. A busy technician with a truck is not yet a business.
What should an HVAC business plan include?
The SBA describes two formats. A lean startup plan fits on one page and takes about an hour. A traditional plan runs longer and is the version lenders and investors commonly request. The SBA lists eight sections for the traditional plan. Here they are, adapted for an HVAC company, in an order you can copy straight into a document:
- Executive summary. One page: company name, owner, licenses held, service area, services, the funding you are asking for and what it buys. Write it last.
- Company description. Residential, light commercial or both. Service and repair, replacement, new construction, or a mix. What you will do better than the shops already in your area.
- Market analysis. BLS demand figures, the size of your service area, the age of the housing stock, your main competitors and what they charge for a diagnostic or a tune-up.
- Organization and management. Legal structure (LLC, S corp), who holds the contractor license, your EPA 608 certified technicians, and an org chart for year one and year three.
- Services. Your service menu, your pricing model (flat rate or time and materials), and your maintenance agreement.
- Marketing and sales. How the phone will ring: Google Business Profile, local search, referrals, builders, property managers. How estimates get followed up and how maintenance members renew.
- Funding request. How much you need, what it pays for (truck, tools, first months of payroll), and the terms you want.
- Financial projections. Startup costs, a month-by-month cash-flow forecast that shows the seasonal swing, and a break-even point.
Add one section the SBA list does not name but every HVAC lender will ask about: an operations plan covering your field software, phones, dispatch and follow-up. It is covered further down.
What licenses do you need to start an HVAC business?
Licensing comes in two layers, and your plan should name both.
Federal: EPA Section 608 certification
The EPA requires technicians who maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere to be certified under Section 608 of the Clean Air Act. There are four types: Type I (small appliances), Type II (high-pressure equipment), Type III (low-pressure equipment) and Universal, which covers all three. The EPA states that Section 608 credentials do not expire. Certification belongs to the technician, not the company, so your plan should list which technicians hold which type. Apprentices are exempt only while they are closely and continually supervised by a certified technician.
State and local: the contractor license
Contractor licensing is set by your state, and sometimes your city or county, so check your own board. Two examples show how different the rules can be:
- Texas. The Texas Department of Licensing and Regulation says contractors who install, repair or maintain air conditioning, refrigeration or heating systems must have a TDLR license, and an ACR company must employ a licensed ACR contractor at each permanent location. Class A covers any size unit. Class B is limited to cooling systems of 25 tons and under and heating systems of 1.5 million BTUs per hour and under. Contractors must carry commercial general liability insurance: for Class A, at least $300,000 per occurrence and $600,000 aggregate.
- California. The Contractors State License Board issues the C-20 Warm-Air Heating, Ventilating and Air-Conditioning classification. CSLB says a license is generally required when a job needs a building permit, uses any workers, or totals $1,000 or more in labor and materials. The qualifying individual needs four full years of journey-level (or higher) experience in the classification within the last ten years, and a $25,000 contractor's bond is required before licensure.
In your plan, list each license and certificate, who holds it, its renewal date, and the insurance and bond it requires. Lenders read this section to judge whether the business can legally do the work it is projecting revenue from.
How much does it cost to start an HVAC business?
There is no honest single number. A solo technician with a used van and their own tools and a three-truck shop with a leased warehouse are different businesses, and the published "average startup cost" figures online rarely say where they came from. Build your own number instead. The SBA splits startup costs into one-time expenses and monthly expenses, recommends budgeting at least a year of monthly costs (five years is ideal), and suggests adding about 10 percent for surprises. For an HVAC company, the categories look like this:
| Category | Type | What to price |
|---|---|---|
| Licenses, exams and bond | One-time, then renewals | State contractor license, local registrations, bond, EPA 608 exam fees |
| Vehicle | One-time or monthly | Truck or van purchase or lease, upfitting, shelving, graphics |
| Tools and equipment | One-time | Gauges, recovery machine, vacuum pump, leak detector, combustion analyzer, ladders |
| Starting inventory | One-time, then ongoing | Common parts on the truck: capacitors, contactors, motors, filters, refrigerant |
| Insurance | Monthly or annual | General liability, commercial auto, workers' compensation once you hire, tools coverage |
| Software and phones | Monthly | Field service software, business phone line, accounting |
| Marketing | One-time and monthly | Website, Google Business Profile, local ads, printed leave-behinds |
| Payroll and owner draw | Monthly | Technician wages, office help, your own pay through the slow months |
| Professional fees | One-time and monthly | Entity setup, attorney, bookkeeper or accountant |
Get real quotes for each line from your local supply house, insurance agent and licensing board, then put the totals in your funding request. Permit and license fees are published, so those lines should be exact.
Flat rate or time and materials: how should an HVAC business price work?
This is one of the most important decisions in the plan, because it shapes how your technicians sell and how predictable your margins are.
- Flat rate means the customer sees one price for the repair before work starts, pulled from a price book. Customers like knowing the number. You carry the risk if a job runs long, so the price book has to be built from your real labor rate, overhead and target margin, and updated when parts costs move.
- Time and materials (T&M) means you bill hours plus parts at a markup. It is simpler to start and fair on unpredictable work, but customers cannot see the total in advance, and a fast technician earns the company less for the same job.
Many shops use flat rate for service and repair and quote replacements and commercial jobs individually. Whatever you choose, write down your hourly cost (wages, burden, truck, overhead per billable hour) in the plan. Your pricing section should show how each price was built from it, not copied from a competitor.
How do maintenance agreements fit the plan?
A maintenance agreement (also called a service plan or membership) is a yearly or monthly contract for scheduled tune-ups, usually with perks like priority scheduling or a repair discount. ENERGY STAR recommends a pre-season checkup every year, cooling in the spring and heating in the fall, and notes that contractors get busy once summer and winter arrive. That is the case for a maintenance program in one sentence: the work naturally lands in your slower months.
In your plan, describe what the agreement includes, its price, how many members you expect to sign in year one (as an assumption, not a promise), and how renewals will be handled. Renewals are where most programs leak. An agreement that expires without anyone calling the customer is revenue you already earned and then gave away.
How do you plan for HVAC seasonality and cash flow?
Cooling demand peaks in summer and heating demand in winter, with quieter shoulder seasons in between. A plan that shows the same revenue every month will not survive a lender's first question. Build a 12-month cash-flow forecast that shows:
- Revenue by month, with the peaks and shoulders your area actually has.
- Fixed costs (payroll, truck payments, insurance, software) that do not drop in slow months.
- Maintenance-agreement visits scheduled into the shoulder seasons to keep technicians billable.
- A cash reserve or credit line sized to cover the gap between your weakest month and your fixed costs.
- When you will pay suppliers and when customers pay you, since replacement jobs can tie up cash in equipment before the final invoice.
The SBA's break-even analysis fits here: list fixed costs, then show how many service calls or installs a month cover them.
What goes in the operations plan?
The operations plan explains how a call becomes a paid invoice. Cover four things.
Field service software
Most new shops pick one system to run scheduling, estimates, invoicing and the customer list. Common choices, as of November 2026:
- Jobber publishes its pricing. Its Core plan starts at $29 a month for one user billed annually, and its Connect, Grow and Plus plans scale up by team size.
- Housecall Pro also publishes pricing: Basic is $59 a month for one user on annual billing, with Essentials and Max plans for larger teams.
- ServiceTitan does not publish prices. Its Starter, Essentials and The Works plans are priced per technician on request, and it is usually aimed at shops with more technicians and office staff.
Pick the one that fits the size you will be in year two, not year five. Moving systems later is painful.
Phones
Every unanswered call in July is a job that goes to the next shop on the list. Your plan should say who answers during the day, what happens after hours (an answering service, an on-call rotation or a text-back), and how fast a missed call gets a response.
Dispatch
Write down how jobs get assigned: by zone, by skill, by urgency. Who decides when a no-heat call bumps a scheduled tune-up, and how the customer hears about the change.
Follow-up
Name an owner for each follow-up: unsold estimates, unpaid invoices, review requests and maintenance renewals. Follow-up is where small shops lose the most money for the least reason, because everyone assumes someone else did it.
Where AI fits once you're running
You do not need AI to start an HVAC business. You need the license, the truck, the price book and the phone answered. Once you are running and the follow-up list grows faster than anyone can work it, a few jobs suit software agents well: texting back missed calls (see AI for HVAC missed calls), working quiet estimates (automating estimate follow-up) and catching maintenance agreements before they lapse (renewal runway).
Where Cortex fits: Cortex builds these agents inside the software you already use, such as ServiceTitan, Jobber or Housecall Pro. Each agent has one job and its own limited login, and a person approves anything that goes to a customer. See how it applies to HVAC companies, or book the Free AI Operations Audit once you have a year of jobs in your system to look at.
