Basic
$118 – $316 each
Non-programmable digital thermostat with backlit display, matched to the system type, wired to existing conductors, tested

One thermostat supplied and installed (remove old, wire in new, test) on existing HVAC wiring; C-wire or new wiring extra.
Install Thermostat in Charleston, South Carolina typically costs $139 to $371 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Charleston are 8.0% lower than the national average for install thermostat.
National average: $150 – $400 each
$118 – $316 each
Non-programmable digital thermostat with backlit display, matched to the system type, wired to existing conductors, tested
$139 – $371 each
7-day programmable digital thermostat with backlit touchscreen, wired to existing conductors, schedule set, heat and cool tested
$174 – $464 each
Wi-Fi smart thermostat with color touchscreen and app control, on compatible existing wiring, schedule and app set up, tested
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $65 – $173 | each |
| Labor | labor | $45 – $122 | each |
| Supplies & Other | supplies | $17 – $46 | each |
| Equipment & Disposal | equipment | $12 – $31 | each |
Material costs in Charleston run proportionally higher than labor, which may favor labor-intensive approaches.
Connect with local install thermostat contractors in Charleston for personalized quotes based on your specific project.