Schedule An Appointment Today

Book online any time and pick the slot that suits you. We'll confirm by text or email, and let you know if an earlier one opens up.

  • Residential DiagnosticMonday–Friday, 8am–5pm
  • Commercial DiagnosticMonday–Friday, 8am–5pm
  • Spring Maintenance Plan VisitAssurance Plan customers
  • Fall Maintenance Plan VisitAssurance Plan customers

Book Your Appointment Online

Prefer to talk to someone? Call or text (713) 667-7606 during regular business hours.

Castle AC & Heating gauges connected to air conditioning condensers during a service call in Houston

Let’s Get Started

When you need air conditioning and heating service in Southwest Houston , you can book your appointment online anytime. We'll confirm your appointment and let you know if a slot opens up sooner, which means we can get to you more quickly. If you have questions, feel free to text or call us at a(713) 667-7606 duringregular business hours . We look forward to serving you!