If you own one of the original Google Nest Thermostats, it’s time to plan your upgrade. Google announced that as of October 25, 2025, it will officially end support for 1st and 2nd generation Nest Learning Thermostats, leaving thousands of smart home users with limited functionality.
What’s Changing
Once support ends, older Nest models will lose connection to the Nest and Google Home apps, meaning you’ll no longer be able to:
-
Control your thermostat remotely
-
Receive maintenance notifications or alerts
-
Use the emergency shut-off feature
-
Adjust settings from your phone or tablet
You’ll still be able to manually change the temperature on the wall unit, but all smart capabilities will effectively be gone.
The Good News: 3rd and 4th Generation Models Still Work
The 3rd and 4th generation Google Nest Learning Thermostats are not affected by this change — and both are currently on sale as homeowners rush to upgrade before the cutoff.
Nest Learning Thermostat (3rd Gen)
The Nest Learning Thermostat (3rd Gen) offers:
-
A sleek metal design and bright high-resolution display
-
Energy-saving “Eco” mode when no one’s home
-
Compatibility with Alexa and Google Assistant
-
System monitoring and maintenance reminders
Nest Learning Thermostat (4th Gen)
Meanwhile, the Nest Learning Thermostat (4th Gen) adds even smarter features:
-
No C-wire required (works with most modern HVAC systems)
-
Smart Schedule technology that learns your preferences
-
Built-in air quality display and humidity readings
-
Compatibility with the latest Google Home integrations
.jpg?width=515&height=290&name=Nest_Learning_Thermostat_4th_gen.width-1000.format-webp%20(1).jpg)
Why It Matters for Your HVAC System
Upgrading your thermostat isn’t just about convenience — it’s about protecting your HVAC investment. Smart thermostats help optimize efficiency, reduce wear on your system, and can even catch issues before they turn into costly repairs.
At ECI Comfort, we help homeowners throughout Bucks County, Philadelphia, and the Delaware Valley make the switch to compatible smart controls. Our technicians can verify your system’s compatibility, handle installation, and ensure your thermostat communicates seamlessly with your heating and cooling system.
Don’t Wait Until Your Nest Goes Dark
With Google’s support ending October 25, and supply already running low on certain finishes, now is the time to act. Schedule your Nest upgrade with ECI Comfort today — we’ll make sure your new thermostat is fully integrated and optimized before winter hits.
If you would like to find out more about the Nest Learning Thermostat or have one installed in your home, contact ECI by clicking the button above or calling 215-245-3200.
