Every homeowner is interested in elevating comfort and cutting costs. A simple solution is a thermostat upgrade. To optimize efficiency and enjoyment of the living space, a thermostat should be programmed and then left alone. Adjusting the temperature multiple times throughout the day can lead to higher utility bills and added wear and tear on the heating and cooling system. A wifi thermostat can be set to a schedule and forgotten.

Premium Customer Service & Recommendation

Welzig Heating and Air is happy to share insight into the leading makes and models of wifi thermostats. Today’s innovative devices provide a sleek modern look, touchscreen displays, and customizable background colors. The thermostat allows access from anywhere through your computer, smartphone or tablet, caters to your preferences, and includes voice command capabilities. You can even receive reminders and alerts about filter changes and indoor temperature.

Wi-fi Thermostats for Temperature Control

Give us a call at (720) 336-3777 for satisfaction guarantee on every job. Welzig Heating and Air offers prompt scheduling for thermostat installation, set up, upkeep, and repairs across Boulder, Longmont, Louisville, and Lafayette, CO. Let’s discuss options and features and determine the perfect fit for your lifestyle and HVAC system. With a minimal investment, you’ll appreciate a significant improvement in the management of your comfort.

WiFi Thermostat Replacement, WiFi Thermostat Systems, WiFi Thermostat Services, WiFi Thermostat Repair & WiFi Thermostat Installation Boulder, CO, Longmont, CO, Louisville, CO & Lafayette, CO

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Satisfied Customers
They Speak For Us

Our 23-year-old A/C system ran out of “borrowed time” and became too difficult to continue maintaining. With great advice from Casey Welzig,, we replaced the old system with a Bryant Evolution A/C system. Max Loustaunau and Seth Bernhardt did an excellent job with removing the old system and installing the new one. Both of them are great to work with — very professional and very personable. We are really amazed at how much better the new system works!


Bob came out to look at our swamp cooler and was remarkably helpful and professional. Not only did he give me a knowledgeable diagnosis, but he also taught me a lot in the process. We’ll be calling him for all future needs with our cooling system.


Dave Kaplan-Gomez and James Miltersen installed my new Tankless Water Heater. Both were polite and professional. Care was taken not to damage anything in my house which I really appreciated. I use Welzig for all my HVAC needs and highly recommend them.

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