We work on all makes and models, and sell all major brands including Trane, Bryant, Ruud, Rheem and Goodman to just name a few. We are a member of the Better Business Bureau, and we have proudly served Austin Texas and surrounding areas since 1997. No hourly rates. Our residential service charge of $55.00 includes the trip charge and diagnostics of your first system. We use flat rate pricing so Coolmasters will give you an estimate on all needed repairs before any work is done to your air conditioning or heating system. We also offer annual maintenance programs, geared toward heading off inconvenient and unexpected breakdowns. Call us today to schedule service or enroll in our annual maintenance program.