Hvac Compliance Guide — Houston, Texas

Summary

Operating as an HVAC contractor in Houston requires compliance with both Texas state licensing through TDLR and local Houston/Harris County permitting requirements. Contractors must hold an Air Conditioning and Refrigeration License for most commercial work and systems over 25,000 BTU, while technicians need individual licenses and EPA certification. The permitting process is straightforward but mandatory for virtually all installations and major repairs, with permits available online and typical approval within a week. Insurance requirements include general liability and workers' compensation, with many projects requiring $1 million coverage limits. The Houston HVAC market is robust with strong demand driving competitive pricing, but contractors must stay current with licensing, permits, and insurance to operate legally and protect their business.

License Requirements

HVAC contractors in Houston must obtain both state and local licenses. At the state level, the Texas Department of Licensing and Regulation (TDLR) requires an Air Conditioning and Refrigeration Contractor License (ACR) for systems over 25,000 BTU or commercial work. This requires passing the ACR contractor exam and demonstrating 4 years of experience or completing approved training. Individual technicians need an ACR Technician License with EPA 608 certification. At the local level, Harris County and City of Houston require business registration and may require additional trade permits. Licenses must be renewed biennially with continuing education requirements. Residential work under 25,000 BTU may not require state licensing but still needs local business permits.

Permit Requirements

All HVAC installations and major repairs in Houston require permits from the local Authority Having Jurisdiction (AHJ) - typically Harris County or City of Houston depending on location. Permit applications must include equipment specifications, load calculations, ductwork plans, and contractor license information. Residential permits typically range from $75-200, while commercial permits can be $200-500+. The permit process usually takes 3-10 business days for approval. Work requires inspections at rough-in and final stages. Emergency repairs may proceed with permits pulled within 24-48 hours. Online permit applications are available through Harris County's ePermits system or the City of Houston's permitting portal.

Insurance Requirements

Texas requires HVAC contractors to carry minimum general liability insurance of $300,000 per occurrence for licensed work. Workers' compensation insurance is mandatory for businesses with employees, with rates typically 2-8% of payroll depending on classification codes. Many clients and jurisdictions require $1 million general liability coverage. Commercial projects often require additional coverage including professional liability and completed operations coverage. A contractor's bond may be required for larger commercial projects, typically 10% of project value. All insurance must list additional insureds as required by contracts and maintain continuous coverage to avoid license suspension.

Typical Cost Ranges

In the Houston market, residential HVAC system replacement typically ranges from $4,000-12,000 for single-family homes, with high-efficiency systems reaching $15,000+. Commercial installations vary widely from $8,000-50,000+ depending on system size and complexity. Service calls generally range $150-400, with diagnostic fees of $75-150. Ductwork replacement runs $2,500-7,500 for average homes. Emergency service commands premium rates of $200-500+ per hour. Labor rates for HVAC technicians in Houston average $45-85 per hour, with master technicians commanding higher rates. Material costs have increased 15-25% since 2020 due to supply chain issues.

Compliance Checklist