There are plenty of HVAC service companies in Las Vegas, but The A/C Company NV is one of the absolute best.
I recently came home to find my system blowing stale, lukewarm air even though I could clearly hear the condenser running. After making a few unsuccessful calls for quick emergency service, I got ahold of Larry Liang with The A/C Company and he agreed to come right out. He was on my roof in less than 30 minutes! Granted, I probably got lucky with him somewhere in the area, but I'm incredibly grateful nonetheless.
Larry was able to diagnose the problem in less than 20 minutes, confirm my condenser was under warranty, and recommend a solution that met my needs and my budget.