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HVAC Contractors in Houston, Texas

Licensed Establishments

8,320

U.S. Census Bureau

Peak Season

April through September - Houston's brutal heat drives 70% of annual service calls during cooling season

Estimate

Avg. Response Time

24-48 hours for quotes, emergency service within 2-4 hours

Estimate

Common Job Costs

ServiceCost Range
AC unit installation (3-4 ton)$4,500 – $8,500
Ductwork replacement$3,000 – $7,500
AC repair service call$150 – $450
Furnace installation$2,800 – $6,000
Indoor air quality system$1,200 – $3,500
Commercial rooftop unit replacement$8,000 – $25,000

Licensing Requirements

Licensing Requirements

Texas requires TACL license through TDLR. Class A (unlimited), Class B (under $50k), Class C (residential repair only). Must pass written exam covering electrical, refrigeration, and mechanical codes. 4 years experience for Class A, 2 years for Class B. Renewal every 2 years with 8 hours continuing education.

Permit Requirements

Houston requires permits for new installations, replacements over 65,000 BTU, and ductwork modifications. Residential permits $75-150, commercial varies by tonnage. Must be pulled by licensed contractor.

Inspection Schedule

Rough-in inspection before concealment, final inspection after installation. Commercial jobs require additional fire/life safety inspections. Schedule 24-48 hours advance notice with Houston Building Services.

Insurance Minimums

General liability $300,000 minimum, workers compensation as required by TWCC. Many commercial jobs require $1M liability. Bonding required for some municipal contracts.

How to Get Licensed

  1. 1

    Meet experience requirements

    Document 4 years HVAC experience for Class A, 2 years for Class B, or 1 year plus technical education for Class C. Experience must be verified by employers or customers.

  2. 2

    Submit application to TDLR

    Complete TACL application with required documentation, experience verification forms, and application fee. Allow 4-6 weeks processing time once submitted.

  3. 3

    Schedule and pass written exam

    Register for exam through PSI Services. Test covers electrical codes, refrigeration principles, mechanical codes, and Texas regulations. Passing score is 70%.

  4. 4

    Provide insurance and bonding

    Submit proof of general liability insurance and surety bond as required by license class. Insurance minimums vary by license type and must remain current.

  5. 5

    Receive license and maintain compliance

    Once approved, license is valid for 2 years. Complete 8 hours continuing education before renewal. Submit renewal application and fee by expiration date to avoid penalties.

About This Market

Houston's HVAC market is massive and unforgiving. With 2.3 million people sweating through 100-degree summers and high humidity, AC isn't luxury—it's survival. Competition is fierce among 8320+ licensed establishments statewide, with hundreds operating in greater Houston. Residential dominates, but petrochemical and medical facilities drive high-value commercial work. Costs spike during peak season when supply chains tighten and emergency calls multiply. Hurricane season adds another wrinkle—storm damage creates boom-bust cycles that smart contractors plan for. The market rewards speed, reliability, and 24/7 availability more than low-ball pricing. Getting licensed in Texas isn't a weekend project. TDLR's TACL requirements are strict—you need real experience and technical knowledge to pass their exams. Class A license takes 4 years experience minimum, but it's worth it for unlimited work scope. Houston's permit process is straightforward if you know the codes, but inspectors don't mess around with refrigerant handling or electrical connections. Peak season runs April through September, so plan your crew and inventory accordingly. Emergency service pays premium rates, but you better deliver fast. Build relationships with supply houses early—when everyone needs condensers in July, it's who you know that matters.

Data Sources:

Licensed establishments in TX: U.S. Census Bureau Economic CensusLicensing requirements and fees: Texas Department of Licensing and Regulation (TDLR)Permit requirements and costs: Houston Building Services DepartmentInsurance requirements: Texas Workers Compensation Commission and TDLR regulationsCost ranges and market conditions: Industry estimates based on regional market analysis

Frequently Asked Questions

What license do I need for HVAC work in Houston?▾
Texas Air Conditioning Contractor License (TACL) through TDLR. Class A for unlimited work, Class B for jobs under $50,000, Class C for residential repair only. All require written exam and experience verification.
How much does HVAC licensing cost in Texas?▾
Initial TACL license fee is $150-300 depending on class, plus $200-400 for exam fees. Renewal every 2 years costs $75-150. Budget additional costs for continuing education requirements.
What permits are required for AC installation in Houston?▾
Mechanical permits required for all new installations and replacements over 65,000 BTU. Residential permits typically $75-150, commercial varies by project scope. Must be pulled by licensed TACL contractor per Houston Building Services.
When is peak season for HVAC contractors in Houston?▾
April through September drives 70% of annual revenue. July and August are busiest months with emergency service calls peaking during heat waves. Hurricane season (June-November) adds storm restoration opportunities.
What insurance do HVAC contractors need in Texas?▾
General liability minimum $300,000, workers compensation per TWCC requirements if you have employees. Most commercial contracts require $1M liability. EPA 608 certification mandatory for refrigerant handling.

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