Texas is a powerhouse for the HVAC industry. With a population exceeding 30 million and summers that consistently break records, the demand for cooling is constant. However, the “Lone Star State” has a very specific—and strict—regulatory environment managed by the Texas Department of Licensing and Regulation (TDLR).
If you’re looking to trade your tool belt for a CEO title, here is the 2026 step-by-step guide to starting an HVAC company in Texas.
1. Choose Your License Class
In Texas, you don’t just get an “HVAC license.” You must choose a class based on the scale of the equipment you intend to service.
Class A License: This is the “gold standard.” It allows you to work on any size unit, from a window AC to a massive industrial chiller.
Class B License: This is more restrictive. You are limited to cooling systems of 25 tons or less and heating systems of 1.5 million BTUs/hour or less. This is usually sufficient for residential and light commercial work.
2. Master the Experience Requirements
Texas requires significant “boots on the ground” experience before you can apply for a contractor’s license:
48 Months of Experience: You must have 4 years of practical experience under the supervision of a licensed ACR (Air Conditioning and Refrigeration) contractor within the last 72 months.
The Shortcut: If you have held a Certified Technician designation for the last 12 months, the requirement drops to 36 months of practical experience.
3. Register Your Business Entity
To operate legally and protect your personal assets, you must formalize your business.
Entity Type: Most HVAC startups in Texas choose an LLC. Register this through the Texas Secretary of State.
Sales Tax Permit: Since you will be selling parts and equipment, you must apply for a sales tax permit through the Texas Comptroller of Public Accounts.
DBA (Doing Business As): If your business name is different from your legal name, file a DBA with the county clerk where your main office is located.
4. Pass the Exams
Once the TDLR approves your application, you’ll be cleared to take your exams through PSI Exams. You must pass two tests with a score of 70% or higher:
Texas ACR Business and Law Exam: Covers contracts, liens, tax laws, and labor regulations.
Trade Exam: Specific to either Class A or Class B, covering the Uniform Mechanical Code and technical HVAC math.
5. Insurance: The Texas Minimums
Texas is strict about liability. You cannot activate your license without filing a Certificate of Insurance (COI).
| Coverage Type | Class A Requirement | Class B Requirement |
| General Liability (Per Occurrence) | $300,000 | $100,000 |
| Aggregate Limit | $600,000 | $200,000 |
| Products/Completed Ops | $300,000 | $100,000 |
Pro Tip: While these are the state minimums, many Texas general contractors will require you to carry $1,000,000+ in coverage before letting you on a commercial job site.
6. 2026 Strategy: The “Heat Pump Revolution”
In 2026, the Texas market is shifting heavily toward Heat Pumps due to massive federal and local incentives.
Utility Rebates: Companies like Oncor and CenterPoint Energy offer substantial rebates (up to $600+) for high-efficiency SEER2 systems.
Federal Tax Credits: Under Section 25C, your customers can claim up to $2,000 for heat pump installations. Marketing your business as a “High-Efficiency Specialist” will be your biggest competitive advantage this year.
Estimated Texas Startup Budget
TDLR Application Fee: ~$115
PSI Exam Fee: ~$115 per attempt
Insurance Premium: $2,500 – $4,500 (Annual)
Truck Wrap & Marketing: $2,000 – $5,000
Inventory (Initial stock): $5,000 – $10,000
Your First Move
Texas law requires you to display your License Number (TACLA or TACLB) on all service vehicles and marketing materials. Failing to do so can result in heavy fines from the TDLR.
Would you like me to generate a 12-month marketing calendar for your Texas HVAC startup, focusing on the high-demand summer months?