My AC went out. I called a few folks. Marcus responded promptly and came through that evening after hours to take a look. He was able to quickly diagnose the situation. He didn't have everything on the truck to fix the system at the time. However, he was able to provide a stopgap measure to bring me some cool air. He then came back, fixed the leak, check all components of my system, and got me up and running. My AC was blowing 25 degrees out of the vents! That's exactly what I needed, since my house was showing 86 degrees before Marcus came through.
I recommend Marcus without hesitation! If you want someone who is qualified, fair, and will not try to rip you off, then do yourself a favor and call Substantial Mechanical Contracting.