Residential & Commercial HVAC Maintenance for Long-Term Performance
Protect your comfort, reduce breakdowns, and extend the life of your system.
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Same-day or next-day service available.
20+
Years Experience
4,000+
Customers Served
150+
5-Star Reviews
Summer Tune-Up Special: $65 (Normally $79 per system) March–May • Residential Only
Our Services
Residential & Commercial
HVAC Maintenance & Tune-Ups
Routine HVAC maintenance helps prevent unexpected breakdowns, improve efficiency, and extend system lifespan. South Texas Air offers professional maintenance services for both residential and commercial HVAC systems.
Residential HVAC Maintenance Services
Precision System Tune-Ups
Comprehensive inspections and adjustments designed to keep your system running efficiently.
Safety & Performance Checks
Evaluation of electrical components, system controls, and overall performance.
Airflow & Comfort Issues
Cleaning and adjustments to improve airflow and indoor comfort.
Efficiency Improvements
Minor adjustments that help reduce energy usage and improve system output.
Seasonal Readiness
Ensures your system is prepared for extreme Texas heat and cooler months.
Membership & Protection Plans
Ongoing maintenance, priority service, and extended warranty options designed to protect your system, reduce unexpected repairs, and keep your home or business comfortable year-round.
See membership and warranty options
Need HVAC Maintenance today?
See membership and warranty options
Commercial HVAC Maintenance Services
Customized Preventative Maintenance Scheduling
Routine system inspections paired with flexible, business-friendly maintenance scheduling help identify potential issues early, reduce downtime, and keep your equipment operating reliably without disrupting daily operations.
Performance & Efficiency Testing
We evaluate airflow, electrical components, and system operation to ensure your equipment is running efficiently and meeting the demands of your space.
Zoned System Repairs
Regular filter changes and airflow assessments help maintain healthier indoor air quality for employees and customers while protecting your system from unnecessary strain.
Electrical & Safety Component Checks
We inspect wiring, connections, controls, and safety switches to help ensure reliable operation and compliance with safety standards.
Coil Cleaning & System Cleaning
Dirty coils and components reduce efficiency and increase operating costs. Cleaning helps restore proper performance and extend equipment life.
Thermostat & Control Calibration
Accurate controls are critical in commercial spaces. We verify thermostat settings, zoning controls, and system responsiveness to maintain consistent comfort.
Need HVAC Maintenance today?
Membership & Warranty Plans
Stay Comfortable, Stay Covered
South Texas Air Platinum Club Membership
Our company maintenance plan that offers critical maintenance services and extra benefits for members year-round.
Members receive:
- VIP Priority Service (24-hour arrival during peak season)
- Preferred Technician
- 2 FREE Precision Tune-Ups (1 A/C + 1 heating)
- 50% Off Repair Diagnostic Fee
- 20% Off Repairs, Parts & Filters
- Transferable if you move
- Only $14.91/month per system
Maintenance coverage only. Labor not included.
South Texas Air PRO Warranty Plan
Ultimate protection for new system installations.
Includes:
- 10-Year Parts & Labor Warranty
- Full coverage for all potential repairs
- Peace of mind for an entire decade
Maintenance coverage only. Labor not included.
Standard Factory Warranties
Equipment Warranty:
- 10-year parts warranty (registered equipment)
- 5-year parts warranty (unregistered)
- We register all equipment for you at no cost.
Contractor Labor Warranty:
- 1-year labor from installation date
Service & Repair Warranty:
- Mirrors equipment warranty (10 years registered / 5 years unregistered)
Maintenance coverage only. Labor not included.
Membership & Warranty Plans
Stay Comfortable, Stay Covered
South Texas Air Platinum Club Membership
Our company maintenance plan that offers critical maintenance services and extra benefits for members year-round.
Members receive:
- VIP Priority Service (24-hour arrival during peak season)
- Preferred Technician
- 2 FREE Precision Tune-Ups (1 A/C + 1 heating)
- 50% Off Repair Diagnostic Fee
- 20% Off Repairs, Parts & Filters
- Transferable if you move
- Only $14.91/month per system
Maintenance coverage only. Labor not included.
South Texas Air PRO Warranty Plan
Ultimate protection for new system installations.
Includes:
- 10-Year Parts & Labor Warranty
- Full coverage for all potential repairs
- Peace of mind for an entire decade
Maintenance coverage only. Labor not included.
Standard Factory Warranties
Equipment Warranty:
- 10-year parts warranty (registered equipment)
- 5-year parts warranty (unregistered)
- We register all equipment for you at no cost.
Contractor Labor Warranty:
- 1-year labor from installation date
Service & Repair Warranty:
- Mirrors equipment warranty (10 years registered / 5 years unregistered)
Maintenance coverage only. Labor not included.
Why Choose South Texas Air
Your Local Family-Owned HVAC Experts
We started South Texas Air with one mission — to bring honesty, affordability, and personal care back to HVAC service. As the industry becomes more corporate, customers often pay more but receive less. We’re here to change that.
Family-Owned & Operated Values
Transparent, Honest Pricing
20+ Years of Hands-On Experience
Residential & Commercial Expertise
Pride in Crafsmanship
Serving 10 Texas Counties
Fast Response, Friendly Service
From our family to yours — thank you for trusting us with your home’s comfort.
testimonials
Customer Reviews
Fast, honest, and reliable! South Texas Air is the only HVAC company I trust.
Verified Google Review
Customer Reviews
Fast, honest, and reliable! South Texas Air is the only HVAC company I trust.
Verified Google Review
Customer Reviews
Fast, honest, and reliable! South Texas Air is the only HVAC company I trust.
Verified Google Review
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FAQs
Frequently Asked Questions
Do you service both residential and commercial HVAC systems?
Yes. South Texas Air provides full-service heating and cooling solutions for homes, offices, retail spaces, and multi-unit properties.
How much does it cost to diagnose an A/C issue?
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