Met with Sonu who requested and estimate. Looked over the gas water heater which was installed in 2003. Water heater showed signs of decay and in need of replacement given the age. Worked up three options for the customer and emailed them to her while present. Explained to the customer that we would be supplying contractor grade unit such as a Bock or A.O.Smith. Customer was well informed, regarding brands and pricing. I explained, that we do not supply box stores merchandise.