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The CAST Thermostat

by Big Fish Cooling and Heating

Smart Comfort

Meet the CAST Thermostat


Big Fish Cooling and Heating is proud to offer the CAST Thermostat—a smarter way to control your indoor comfort. CAST gives you more control, better efficiency, and easier access to your HVAC system than ever before.

With an intuitive design and intelligent features, the CAST Thermostat fits seamlessly into your life—helping you save money, reduce energy waste, and enjoy year-round comfort.

Local Expertise

Features That Work for You


  • App-Based Control – Adjust temperatures from your phone anytime, anywhere.

  • Custom Scheduling – Program your system around your routine for smarter energy use.

  • Energy Monitoring – Reduce energy bills without compromising comfort.

  • System Health Alerts – Stay ahead of breakdowns with real-time maintenance notifications.

  • Air Quality Monitoring – Keep tabs on indoor CO₂ levels and air quality.

  • Built-In Service Requests – Book service with Big Fish Cooling and Heating directly from the thermostat.

Whether you’re at home, at work, or on vacation, CAST keeps you connected to your comfort system and your trusted local HVAC team.

Download the new CAST App!

Now for Android and IOS

  • Remote monitoring
  • Predictive maintenance alerts
  • One-touch appointment booking
  • Service at the touch of a button

The CAST Thermostat

Installed by Pros. Backed by Big Fish.


Our licensed technicians handle every CAST Thermostat installation with care, making sure it’s configured correctly and running smoothly with your HVAC system. We’ll walk you through setup and show you how to use its features with confidence.

The best part? You’re not just buying a thermostat—you’re getting a direct line to the experts at Big Fish Cooling and Heating. We’re here for ongoing support, updates, and service—just a tap away.