What’s a C-Wire (and why it matters)

Most smart thermostats require a C-wire (common wire) to provide constant 24V power. If your old thermostat didn’t need one, this is the #1 reason smart thermostat installs fail or become unreliable.

Without a proper C-wire, thermostats often rely on batteries or “power stealing,” which can cause disconnects, HVAC odd behavior, and dead batteries.

Our Solutions

Option 1: C-Wire Adapter — $179 (about 1 hour). Install an adapter at the HVAC system. No wire fishing through walls. Works for most systems.
Option 2: Run a New C-Wire — $249–$399 (about 1.5–2 hours). Fish a new wire from HVAC to thermostat. Most reliable solution. Price depends on accessibility.

What This Service Includes

System compatibility check.
Professional installation (adapter or new wire run).
Power verification and testing at HVAC and thermostat.
HVAC functional testing after wiring changes.
Troubleshooting any power-related issues discovered.
1-year warranty on our workmanship.

Bundle Savings

Save $50 when bundled with Smart Thermostat Installation (adapter option): $429 total for both services.