How to start an HVAC business (costs and seasons)

To start an HVAC business you need refrigerant handling certification and a trade licence in your own name, a business registration, insurance and usually a bond, about $3,710 of tools and stock if you start bare, and a way for customers to book you. The paperwork takes weeks to months depending on where you are. What decides whether the business pays you all year is not your summer. It is what fills your diary in April and October, when nothing is breaking.

This is written for a qualified HVAC technician about to go out on their own. We build the software small local trades run their bookings, deposits and rebooking on, so treat this as our view rather than neutral advice. We do not run an HVAC company and we will not teach you the trade. What we can do is the arithmetic: what starting costs, what the licence actually is, whether 100k a year survives a cost model, and why maintenance visits matter more in this trade than in almost any other we write about.

All figures are in US dollars as a reference point. They are our own planning assumptions, not market data, and the maths works in any currency, so put your own numbers in and re-run it.

How much does it cost to start an HVAC business?

Three versions, priced as we would put them in a plan. They are not better and worse. They are different bets on how quickly the diary fills.

Two honest notes. No column includes the van. Google's own summary for this search quotes $5,000 to $25,000 for a minimal start and far more for a full one, and those ranges usually include a vehicle, which is the biggest line in the plan if you do not already have one. And the licence and bond line varies more by place than anything else here, so treat $700 as a placeholder until your licensing authority gives you a real figure.

The bare column has no recovery machine, which means you are not yet taking jobs that open the refrigerant circuit. That is a real limit on what you can quote, so most people only stay there for weeks.

What licence do you need to start an HVAC business?

Four separate permissions get called an HVAC licence, which is why the answers online disagree. They come from different offices and one does not replace another.

1. Refrigerant handling certification. Held by a person. In the US this is EPA Section 608, and in the UK and EU it is F-gas certification. You need it to buy refrigerant, not just to use it.
2. The trade or contractor licence. What lets you do the work unsupervised and pull permits. Many places want logged field experience and an exam first, and some issue it to a qualifying person who must be named on the business.
3. The business registration. Sole trader, limited company or LLC, with your tax authority. Nothing to do with HVAC.
4. Insurance and bond. Not a licence, but most places will not grant the contractor licence without proof of both.

If you work on gas fired heating, expect a fifth, separate gas registration in many places. We are not publishing a region by region table, the same decision we took in whether you need a licence to groom dogs, because the published tables contradict each other and we will not invent a tidier one. Ask your local licensing authority these four questions instead.

• Which licence lets me work and quote unsupervised, and who issues it?
• Does the business need its own contractor licence to pull permits?
• What insurance limit and bond are required before that licence is granted?
• Do I need a separate registration for gas heating work?

Do HVAC business owners make good money?

They can, but the year is lumpy in a way most trades are not. Breakdown calls cluster in the hottest and coldest months. In spring and autumn the phone goes quiet, and those weeks still have to pay for the van and the insurance.

Here is our model for a solo owner. It assumes 250 working days, split into 170 peak days and 80 shoulder days, a $280 average breakdown ticket (a diagnostic fee plus the repair), each call taking about two hours door to door, and parts at 30% of breakdown revenue.

So the honest answer to can HVAC make $100,000 a year is yes, as an owner, once the peak months run at three calls a day. Year one usually looks more like the first column. The jump to the third column takes no extra peak calls at all. It comes entirely from hours that were going unused.

Why the shoulder season decides your year

Look at an established shoulder day in the model. One and a half breakdown calls at two hours each is three hours of work in an eight hour day. Across 80 shoulder days that is 400 idle hours a year, already paid for in van and insurance costs.

Now price a maintenance visit. Say a plan costs the customer $199 a year for two tune-ups, one before summer and one before winter. That is $99.50 a visit. A tune-up takes about 75 minutes on site plus 25 minutes of driving, so 100 minutes of your day.

A tune-up pays less than half what a breakdown pays per hour. That is why it is the wrong job in July, when every hour could be a $140 call, and the right job in April, when the alternative is $0.

The 400 idle hours hold 240 tune-ups at 100 minutes each. Each member takes two visits a year, so 120 members fill the shoulder exactly. At $199 that is $23,880 of revenue, about $21,960 after consumables, from time you were already paying for. It also puts you in front of every unit you will be called to fix next year, and any repair you find on a tune-up is extra we have not counted.

Keeping the maintenance book full

A maintenance book only works if members renew and actually book their visits. Run the replacement maths at 120 members.

• At 60% renewal you lose 48 members a year and have to sign 48 new ones just to stand still.
• At 85% renewal you lose 18.

That is 30 fewer members to find every year, from one number you control. A lapse is often not a decision. It is a customer who was never reminded, which is the pattern we wrote up in how to get repeat customers.

Here is what we do and do not do for this. We do not bill maintenance plans as a recurring subscription, and we do not track the make and age of each unit. What we do is the visit half. You set a six month rebooking interval, each completed tune-up starts the clock on the next one, and when a customer is due they get a reminder with a link to book. Members who still drift show up in the lapsed segment, and an email campaign to that segment in late winter and late summer is the cheapest way back. Our reminders and campaigns go out by email.

How do you get your first HVAC customers?

Put the booking link live before you tell anyone you have started, so the first person you mention it to has somewhere to land. Most HVAC work arrives by phone, and it always will in a no-heat emergency. The point is that the phone call, the referral and the online booking land in one diary.

That is a live storefront we run, and it is an auto repair shop, not an HVAC company. We have no HVAC demo tenant, so we are showing the nearest thing we actually operate rather than a mockup. Breakdown work has the same shape as a garage job, a diagnosis, a quote and a repair. The other live sites are on our portfolio.

What we would do in the first ninety days, in this order.

1. Work the people who already know your name. Property managers, landlords, builders, the supply house counter and the company you trained with. They send work before strangers do.
2. Take phone bookings into the same system. You can add a booking yourself for every customer who calls, so the record and the confirmation still happen.
3. Sell the maintenance plan on every breakdown call. The customer whose system just failed is the one most willing to pay to avoid the next failure.
4. Ask for the review while you are packing up. Not that evening, when the moment has gone.

On payment, we would take a deposit on a booked replacement or install and nothing on an emergency call. How you charge has three modes, off, deposit and full, so pick the one that matches the work you take most.

Is it worth starting an HVAC business?

The demand is reliable, because systems fail whether the economy is good or not, and the work cannot be done remotely. The risk is not the summer. It is a spring and autumn with nothing booked, and a customer list that only hears from you when something breaks.

If you are weighing HVAC against plumbing, our plumbing startup post works through the other big margin lever in a call-out trade, finishing the job on the first visit, and that maths applies here unchanged. The wider pattern is in how local service businesses get and keep customers. More under get more customers and on the HVAC hub.

Start with the working van if you can, and sell your first maintenance plan before your first spring. On our numbers the quiet months are where an HVAC owner's year is won or lost.