Good communication, answered all my questions, and install was easy and fast. They only use high quality water heaters too (not what you find at Lowe's or home depot)...after they left, I noticed a small gas smell from the gas valve (our valve, not one they installed), so I contacted them again and within a few days, I had a tech over to fix the small leak. No extra charge. Now THAT is how you take care of your customers! The technician who came out was great. Highly recommend Einstein Plumbing for your hot water install.