How to start an HVAC business in California.
Starting an HVAC business in California comes down to a few concrete steps: make it legal, get the tools to take calls and book jobs, and get your first customers. Here's the path — and at the end you can actually launch it, not just read about it.
1. Register your business
Register your business with the California Secretary of State — most owners form an LLC — and get a federal EIN. Open a business bank account so HVAC income stays separate.
2. Licensing & insurance
Check whether HVAC work needs a state or local license in California, and carry liability insurance (and workers' comp if you hire). Licensing rules vary by California city and county — confirm before you take jobs.
3. Get a phone number, website & booking
Customers need a way to reach you and book. Get a local business number, a simple website and online booking — plus a way to answer every call, since a missed HVAC call is a lost job.
4. Get your first customers
List your HVAC business on Google, ask early customers for reviews, and make sure every inbound call gets answered and booked. Answering and following up beats any ad budget at the start.
Neuron does steps 3–4 for you — right now.
Name your city and Neuron sets up a local number, a booking website, a CRM and a 24/7 AI receptionist for your HVAC business in minutes.
Free to start — no credit card required.