To start an HVAC business, get the licenses your state and city require, make sure everyone who handles refrigerant holds EPA Section 608 certification, and insure the business before the first call. Then set up a van, prices and paperwork, and build steady work with fast response, reviews and maintenance agreements.
Here’s each step in plain English, with official sources. This is general information, not legal, tax or insurance advice. Rules vary by state and city, so confirm them with your state agency, an insurance agent and an accountant.
The short checklist:
Usually there are two layers: a federal certification for refrigerant work, and whatever license your state or city requires.
The EPA requires anyone who maintains, services, repairs or disposes of equipment that could release refrigerants into the atmosphere to be certified. Apprentices are exempt only while a certified technician closely and continually supervises them. Type I covers small appliances, Type II covers high- and very high-pressure appliances, Type III covers low-pressure appliances, and Universal covers all three.
You pass an EPA-approved test given by an EPA-approved certifying organization, and the credential doesn’t expire. For Universal, the core section must be taken as a proctored exam. Certification also matters when you buy supplies: a seller must verify that a refrigerant buyer is a certified technician or employs one (EPA).
The Bureau of Labor Statistics notes that some states and localities require HVAC technicians to be licensed. Two examples from official sources, checked October 16, 2026:
Other states license HVAC work through a trade board, and some leave it to cities and counties. Find your state in the ECHOPS license guides, confirm with the agency, and ask each city’s building department what it needs before it issues a permit. Our post Do you need a contractor license? covers the questions that decide it.
Watch refrigerant rules for new equipment, too. The EPA’s Technology Transitions rules set a global warming potential limit of 700 for refrigerants in new residential and light commercial air conditioning and heat pump products and systems, with compliance dates starting January 1, 2025, and parts of the program have since been revised. Check the EPA’s restrictions-by-sector page and your distributors before you stock equipment.
The SBA’s launch checklist covers the basics: choose a business structure and name, register the business, get federal and state tax ID numbers, apply for licenses and permits, open a business bank account and get insurance.
For insurance, find an agent who works with HVAC contractors and tell them exactly what you do, including gas work and any commercial jobs. Ask about general liability (some licenses set a minimum, like Texas above), commercial auto for the van, tools and equipment coverage for what rides in it, and umbrella limits. The SBA lists workers’ compensation, unemployment and disability insurance as required for businesses with employees, and notes that some states require more.
Keep a certificate of insurance ready to send, because builders and property managers may ask. Bonds are separate from insurance; California, for example, requires a $25,000 bond for every contractor license.
Equip for the calls you’ll run first, not every job you might see someday. A residential service van usually carries:
Price your list with local suppliers, and rent or sub out the rare jobs at first. Track mileage from day one: the IRS business standard mileage rate is 76 cents a mile for July 1 to December 31, 2026, up from 72.5 cents earlier in the year. It’s a tax figure, not your actual cost, but every drive to a call costs money your prices have to cover.
Service calls and installs are different products, so price them differently.
A common setup is a diagnostic or service-call fee that covers the trip and the time to find the problem, then a repair price the customer approves before you start. You can price repairs two ways:
Decide how you’ll price nights, weekends and holidays, and tell the customer before you roll the truck.
Price a replacement like a project: equipment, materials, labor hours, permit, disposal and a share of overhead, then your margin. Offer system options on one estimate, and get a signed contract before you order equipment. The free estimate template and contract template are good starting points; have a local attorney adapt the contract to your state.
The median wage for HVAC mechanics and installers was $29.33 an hour in May 2025, according to the BLS. That’s where labor cost starts, not your billing rate. Add payroll taxes, workers’ comp, benefits, unbilled hours like drive time, and overhead, then your margin. The labor rate calculator does the math.
A hypothetical install: equipment and materials cost $6,000, and labor, permit and disposal cost $2,000, so the job costs $8,000. For a 30% gross margin, divide by 0.70: the price is about $11,429. Adding 30% to cost gives $10,400, only about a 23% margin.
Send a clear invoice the day you finish; the free invoice template covers what to include.
A maintenance agreement is a yearly plan where the customer pays for scheduled tune-ups, often with perks like priority scheduling or a repair discount. It fills the shoulder seasons with spring cooling checks and fall heating checks, keeps the customer calling you instead of searching, and shows you which systems are near the end of their life, so replacement quotes go to people who already trust you.
Keep the first version simple: what each visit includes, how many visits, the price, how renewal works and how either side cancels. Put it in writing, and check your state’s rules before you set up automatic renewals. Then schedule the visits ahead and remind customers, so the plan delivers what you sold.
On day one you need a phone, a calendar, estimates, invoices and one place for each customer’s equipment and service history. As calls grow, add scheduling and dispatch, a price book for flat-rate pricing, e-signatures, time sheets and job costing. Before you choose, ask:
It depends mostly on licensing. EPA Section 608 certification takes one exam, but a state contractor license can require years of documented experience: Texas asks for 48 months under a licensed contractor on one of its paths, and California asks for four years of journey-level experience within the last ten.
Not always. Section 608 is the federal certification for working with refrigerants, not a business or contractor license. Your state, county or city may require its own license, insurance or registration.
The type that matches your equipment: Type I for small appliances, Type II for high-pressure appliances, Type III for low-pressure appliances. Universal covers all three, and its core section must be taken proctored. Certification does not expire.
Either works if the numbers cover your true labor rate, overhead and margin. A common setup is a service-call fee plus flat-rate repairs from a price book, so customers see the price before you start.
It varies too much by state, market and van setup for one reliable number. Get local prices for license fees, insurance, the van, tools and starter stock, and keep a cash reserve. As one fixed cost, Texas charges a $115 application fee for its contractor license.
Start with the licenses your state and city require, and EPA Section 608 certification for everyone who handles refrigerant. Then choose a business structure, get an EIN and open a business bank account. Buy general liability and commercial auto coverage, plus workers’ comp when you hire. Set up the van, tools and starter parts, then work out your labor rate and prices. This isn’t legal advice; see the license guides.
Tell everyone you know, including suppliers and other trades, and set up a Google Business Profile with your service area, hours, real photos and your license number where required. Answer fast, because a customer with no heat calls the next company. Partner with remodelers, builders, plumbers, home inspectors and property managers, ask for a review after every good call and track where each lead came from. See ECHOPS for HVAC contractors.
It depends on your prices, your costs and how busy you stay, so there’s no one number to plan on. Profit starts with pricing from your true costs. In a hypothetical install that costs $8,000, dividing by 0.70 gives a price of about $11,429, while multiplying by 1.30 gives just $10,400, only about a 23% margin. Maintenance agreements help fill the slow months.
Maintenance agreements help: yearly plans with scheduled tune-ups fill the spring and fall shoulder seasons, keep customers calling you instead of searching, and show which systems are near the end of their life. As calls grow, add scheduling and dispatch, a price book for flat-rate pricing, e-signatures, time sheets and job costing. Keep asking for reviews and tracking lead sources, so you know what to keep paying for.
ECHOPS keeps service calls in one place, with statuses, a map, a route planner and warranty dates counted from the completion date. Estimates come from your price book with your own markups, can include options the customer chooses, and are signed by e-signature. Invoices handle deposits and progress payments; clients pay invoice links by card, Apple Pay, Google Pay or ACH, and ECHOPS records checks and cash too. Customers can book from your online booking page, review requests are built in, and it all runs in your phone’s browser. Try it free for 14 days, no credit card.
Posts are general information, not legal, tax or financial advice.
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