Andrew & Zach did a great job servicing my tankless water heater. They were very knowledgeable and professional. I mentioned to Andrew that I had a toilet and a garbage disposal that was not working. Andrew stated that DRF provide services to fix the problem with the toilet, and install a new garbage disposal. I couldn't believe my luck, to be able to get these things done in one visit. I had left work late that morning to meet the team to have the water heater taken care of. They did an excellent job on all three items in a timely manner. I was able to go back to work that afternoon. Thank you! Andrew and Zach.