- HEP HVAC
- Thermostat Upgrade Services

Thermostat Upgrade Services
Thermostat Upgrade Services | Thermostat Upgrades | Heating and Air Conditioning | Tazewell
Imagine adjusting the temperature in your Tazewell home from the lake, the office, or even the couch—HEP makes it possible with thermostat upgrades that blend smart technology with tried-and-true HVAC expertise. Our certified technicians replace outdated thermostats with intuitive, Wi-Fi–enabled models that learn your schedule, trim utility bills, and keep every room consistently comfortable through East Tennessee’s wild weather swings.
From the moment you call, we handle everything: tailored product recommendations, seamless installation, and a quick tutorial so you feel confident controlling your comfort from any device. If you’re ready for precision heating and cooling—and the peace of mind that HEP’s “On the Way” promise delivers—schedule your thermostat upgrades today and stay perfectly cozy all year long.
FAQs
Why should I consider upgrading my thermostat in Tazewell?
Older manual or non-programmable thermostats can be off by several degrees, wasting energy and making your home less comfortable. A modern programmable or smart thermostat offers precise temperature control, automatic scheduling, remote access via smartphone, and energy-use reports. In Tazewell’s variable climate, these features can cut heating and cooling costs by up to 15% while keeping rooms consistently comfortable.
What kinds of thermostats do you install or replace?
We install a full range of ENERGY STAR® certified models, including 7-day programmable thermostats, Wi-Fi–enabled smart thermostats (Nest, ecobee, Honeywell, Emerson Sensi), and communicating thermostats designed for high-efficiency HVAC systems. We’ll recommend the best option based on your heating and air-conditioning equipment, lifestyle, and budget.
How does a smart thermostat actually save me money?
Smart thermostats learn your occupancy patterns and automatically adjust temperatures when you’re away or asleep. Many models use geofencing, motion sensors, and local weather data to fine-tune runtimes. Over the course of a year, homeowners in Tazewell typically see utility-bill reductions of 8–20%, especially during peak summer and winter months when HVAC use is highest.
Will a new thermostat work with my existing furnace or air-conditioning system?
In most cases, yes. During our free in-home assessment we verify system voltage (low-voltage 24 V vs. line-voltage), the number of stages, and whether you have gas, electric, heat pump, or dual-fuel equipment. We also confirm that you have the necessary C-wire or offer add-on power kits if needed. If your HVAC system is older, we’ll identify compatible thermostats that maximize performance without requiring a full equipment upgrade.
How long does the thermostat upgrade take and what is involved?
A standard replacement in Tazewell usually takes about 60–90 minutes. We power down your HVAC equipment, label and disconnect existing wires, mount the new base plate, connect and verify wiring, power up the system, and program initial settings. After installation, we guide you through the mobile app, scheduling features, and energy-saving tips so you can start benefiting immediately.
What warranties and after-sale support do you provide?
All thermostats we install come with the manufacturer’s 3- to 5-year warranty, and our labor is covered by a 1-year workmanship guarantee. If you experience connectivity issues, programming questions, or need seasonal adjustments, our Tazewell support team offers free phone assistance and priority on-site service. Optional maintenance plans are available for ongoing tune-ups and software updates.