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
Sigma Home Comfort Plan
Complete connected comfort with the Sigma thermostat, app-based control, proactive maintenance, and member savings.
$24.99/month
12-month agreement, then month-to-month
Smart Monitoring vs. Sigma Home Comfort
Compare every feature side by side. Both options include monitoring, maintenance, savings, and priority service—but Sigma Home Comfort adds the thermostat for complete comfort control in the app.
Smart Monitoring
$34.99/month
Sensor + app
Sigma Home Comfort
$24.99/month
Thermostat + sensor + Sigma app
Smart Monitoring vs. Sigma Home Comfort
Compare every feature side by side. Sigma Home Comfort includes the thermostat for complete comfort control in the app.
More than monitoring—complete comfort control
The Sigma Home Comfort Plan pairs an included Sigma thermostat with the mobile app and twice-a-year HVAC maintenance. Monitor system performance, receive early alerts, and adjust your home’s temperature from the same connected experience.
The thermostat makes the difference
Sigma Home Comfort: Includes the Sigma smart thermostat, sensor, and app for monitoring and temperature control.
Smart Monitoring: Uses a sensor + app setup and does not include a thermostat.
What’s included with Sigma Home Comfort

Real-time system monitoring

Water leak protection

Smarter filter care

Twice-a-year maintenance

Scheduling and video support

Member savings and priority service
Comfort support that keeps working between visits
The plan is auto-billed monthly and is non-transferable and non-refundable.

