Upon arrival I was shown to the water heater in 604. I informed the customer of the rusting on the hot side and the age. The estimate to replace the water heater with a permit and 530 valve was signed. Due to the AC lines being in the way I couldn’t do it today. Contacted Advanced Air and they’ll call me back to let me know if they can perform the service and we’ll orchestrate when the work will be done. If all else fails, I’ll need a second person to come with me and we’ll find the AC stack in case there’s a failure on the AC valves when the water heater is being changed. Customer put a $1200 deposit down towards the work