Smart Thermostats & HVAC Accessories in Fayetteville, TN

Enhance your climate control and safeguard your equipment investment with modern accessory upgrades. Custom Air installs smart Wi-Fi thermostats, electrical surge protectors, and condensate float safety switches designed for optimal system protection.

Wall-mounted digital thermostat with blue display showing 28° on a beige interior wall.

Wi-Fi Control & System Surge Protection Upgrades

Protecting your heating and air conditioning system involves more than basic equipment maintenance. Custom Air offers modern accessories and control upgrades—such as smart Wi-Fi thermostats, surge protectors, and condensate float safety switches—to protect your system investment. Wi-Fi thermostats give you full control over household temperatures from your smartphone, while electrical surge protectors shield expensive compressors from sudden lightning strikes and power surges.


We install safety switches and smart controls that protect your home from water damage and power surges.

System Safety & Control Upgrades

Safeguard your high-voltage equipment and improve daily temperature convenience with reliable accessory additions:

Black router icon with Wi‑Fi signal and three connected ports beneath it

Wi-Fi Smart Thermostats

Manage home temperature settings remotely from your mobile device and set energy-saving daily schedules.


Black house icon with a white fan symbol, flanked by a flame on the left and a snowflake on the right.

HVAC Surge Protectors

Shield sensitive control boards and outdoor compressor motors against sudden electrical storm power surges.

Black rounded-square button with a white gear icon

Condensate Float Switches

Automatically shut down system operation if drain lines back up, preventing ceiling and drywall water damage.

We're Known For:

  • Smart Wi-Fi Thermostat Setup
  • Remote Smartphone Temperature Controls
  • HVAC Electrical Surge Protectors
  • Condensate Safety Float Switches
  • Water Damage Prevention Controls
  • System Protection Upgrades
  • Custom Thermostat Programming
  • Expert System Compatibility Advice

During Your Accessory Installation, You Can Expect:

  • Expert Compatibility Assessment with Current System
  • Clean Hardware Mounting & Professional Electrical Wiring
  • Complete Wi-Fi Network & Mobile App Configuration
  • Full Demonstration of System Features & Protection Controls