My mother-in-law called me at work and said our freezer was leaking water and the refrigerator was not running. I called Brumbach and left a voice mail. Mark called me back promptly. I explained the problem to him, and he said he would be there within a 1/2 hour. I couldn't believe the response time was so fast! Mark arrived when he said he would, diagnosed fixed the problem. He called me at work to explain what the issue was and the charge was reasonable. I would use this technician again in the future.