HVAC · Start a Business
How to Start a Heating and Air Conditioning Business
From certified tech to open shop: how to start a heating and air conditioning business in eight steps, from EPA 608 to your first paying customers.
- Pick a service lane, register the entity, and get a free EIN from the IRS.
- Earn EPA Section 608 certification, then confirm state and local licensing.
- Insure the company, kit out a van, and price every job off labor, materials, overhead, and margin.
- Win first customers through referrals and maintenance plans, then quote faster than the competition.
The short answer
Here is how to start a heating and air conditioning business in one paragraph: pick a lane, register and get a free EIN, earn EPA Section 608 certification, confirm your state license, get insured, build the kit, price for margin, and quote fast enough to win the work. HVAC is one of the few trades with a federal entry credential. Every number here was checked live against the Bureau of Labor Statistics, the EPA, the SBA, and the IRS on July 9, 2026.
The backdrop is strong: the BLS counts about 425,200 heating, air conditioning, and refrigeration mechanic and installer jobs in 2024 and projects 8 percent growth from 2024 to 2034, much faster than average, with about 40,100 openings a year.
How to start a heating and air conditioning business in 8 steps
Work them in order: skipped compliance is what shuts new shops down.
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Pick your service mix and validate demand
Residential install and service (furnaces, heat pumps, central air, mini-splits) is the most common entry lane: calls are frequent and maintenance agreements create repeat revenue. Count the aging systems, property managers, and general contractors in your area before you commit.
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Write a one-page plan and startup budget
Answer four questions: what you service, who buys it, what it costs to open, and the revenue that makes year one worth it. List startup costs honestly, gauges to van to insurance, then reverse-engineer the revenue target into jobs a month.
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Register the entity and get a free EIN
Per the SBA, a sole proprietorship is easiest but leaves you personally liable for business debts, while an LLC protects personal assets like your van, house, and savings in most cases. Many HVAC owners pick the LLC. Then get an EIN directly from the IRS: it is free, and required once you hire.
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Earn EPA Section 608 certification
This one is federal law. Under Section 608 of the Clean Air Act, any technician who maintains, services, repairs, or disposes of equipment that could release refrigerants must pass an exam from an EPA-approved certifying organization. There are four types (Type I small appliances, Type II high-pressure, Type III low-pressure, Universal all three) and the credential never expires.
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Confirm state and local licensing
Most states layer a mechanical or HVAC contractor license on top of EPA 608, usually tied to experience hours and a trade exam, and many cities add a business license. Rules vary widely, so treat any summary as practice guidance and confirm with your state contractor board and county office before you bid.
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Buy the right insurance
General liability comes first: it covers the condensate leak, the combustion misadjustment, and the customer who will not let an uninsured contractor on site. Most states require workers’ compensation the day you hire; add commercial auto for the van.
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Build your kit and open a supply house account
A starter kit covers diagnosis, refrigerant handling, and installs: manifold gauges, a recovery machine and tank, a vacuum pump, a brazing setup, meters, and a reliable van. Buy quality daily tools, rent the rare ones, and open a distributor account for contractor pricing and same-day parts.
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Price for margin and quote fast
Price every job off burdened labor (the BLS median of $28.75 an hour is what a tech earns, not what an hour costs you), materials at distributor prices, and overhead, then add margin. When the heat is out, homeowners hire the first clear, itemized estimate that lands, so send yours the same day. Our roundup of the best estimating apps for HVAC contractors compares the tools built for that speed.
Price your first HVAC job from a photo, free →
First customers and a full calendar
Claim a free Google Business Profile, ask past employers and general contractors for overflow work, and put a yard sign on every finished job. Maintenance agreements are the cheapest revenue in the trade: they lock in a visit every season. Once calls stack up, a dispatch board beats a notebook, and our guide to the best HVAC scheduling software compares the options. Half of learning how to start a heating and air conditioning business is keeping the calendar full without giving away margin.
Quote your first jobs with SimplyWise
Most of this checklist is compliance. Winning work is speed. The SimplyWise Cost Estimator turns a photo of the job into an itemized estimate in about 6 seconds, so you price the repair or changeout on site and send the quote before you leave the driveway. It is free to try.
Sources
- U.S. Bureau of Labor Statistics, Occupational Outlook Handbook: HVAC Mechanics and Installers. Median wage $59,810 ($28.75 per hour), May 2024; 425,200 jobs; 8 percent growth 2024 to 2034; 40,100 openings a year.
- U.S. EPA, Section 608 Technician Certification Requirements. Certification required for technicians whose work could release refrigerants; four types; credentials do not expire.
- U.S. Small Business Administration, Choose a business structure. Liability differences between sole proprietorships and LLCs.
- IRS, Get an employer identification number. EIN is free directly from the IRS. All four sources accessed live July 9, 2026.
The median wage buys a paycheck. Certification, insurance, and prices built on burdened labor buy a business.
SimplyWise Editorial
Starting a heating and air conditioning business: common questions
Do you need a license to start a heating and air conditioning business?
Yes, on two levels. Anyone learning how to start a heating and air conditioning business must hold EPA Section 608 certification before handling refrigerant, and most states add a mechanical or HVAC contractor license tied to experience hours and an exam. Many cities add a business license on top, so check your state contractor board before you bid.
How much does it cost to start a heating and air conditioning business?
It varies too much by region and service mix for one honest number. Budget for registration, EPA 608 testing, a state license where required, general liability insurance, refrigerant-handling equipment, a work van, and marketing. Starting solo with a used van keeps the outlay lowest, and the EIN is free from the IRS.
Is a heating and air conditioning business profitable?
It can be: the BLS projects 8 percent employment growth from 2024 to 2034 with about 40,100 openings a year. But the $59,810 median wage is a paycheck, not a profit. Owners make money by pricing jobs over burdened labor, materials, and overhead, then adding margin and maintenance agreements.
How long does it take to get EPA 608 certified?
The credential is a single exam from an EPA-approved certifying organization, and many technicians prepare and test within a few weeks. It never expires, so it is a one-time gate.
Send your first HVAC quote before you leave the driveway.
Snap a photo of the job and get an itemized estimate in about 6 seconds. Send the quote while the customer is still deciding. Free to try, no credit card.