Sigma Air Residential HVAC Maintenance Plans in San Antonio, TX
Want fewer breakdowns, more predictable comfort, and a system that runs efficiently through San Antonio heat? Sigma Air Heating & Cooling offers two residential maintenance options designed to help you stay ahead of repairs, reduce surprise issues, and keep your HVAC performing at its best.
Why Homeowners Choose an HVAC Maintenance Plan
Choose the Plan That Fits Your Home
Smart Monitoring Plan — $32.99/month
Includes full Silver Plan benefits plus real-time system monitoring.
(12-month agreement, then month-to-month.)
What’s Included
- Free sensors + smart hub with all new system installs
- Existing systems: $49 one-time fee for sensors & hub (customer owns it)
- Real-time system monitoring with instant alerts
- Includes ALL Silver Plan benefits
- Month-to-month after the first year
Monitoring & Protection
- Live alerts if the system stops heating or cooling properly
- Water leak alerts from the drain pan
- Filter replacement reminders
- System performance tracking to catch issues early
- Monthly System Health Report
Convenience Features
- Order filters directly through the app (free shipping)
- Schedule appointments in-app
- Call, text, chat, or video-call with a technician for remote troubleshooting
- Option to add additional water sensors for sinks, water heaters, etc.
Silver Plan — $29.99/month per system
Does not include app or monitoring features.
Plan includes:
What’s Included
- Twice-a-year maintenance
- Clean or replace filters (customer supplied)
- Light chem wash (non-acidic)
- Spray-in-place coil cleaning
- 10% discount on parts and labor
- 10% off new installations
- Priority scheduling
What to Expect From Your Twice-Yearly Maintenance
Your plan is designed around preventative service: clean components, check performance, and address issues that commonly reduce efficiency or cause shutdowns, especially during peak San Antonio cooling season.
Maintenance Plan Terms & Disclaimers
- Plan(s) are non-transferable and non-refundable
- Auto-billed monthly
- Smart Monitoring Plan: $32.99/month
- Silver Plan: $29.99/month per system
What’s Included in Commercial HVAC Maintenance
Both plans focus on performance, cleanliness, and reliability, helping your system run efficiently while catching developing issues before they become expensive shutdowns.

