I didn't want to replace my bathroom 2 sink faucets just because 1 cold water faucet wasn't working. Robert said cartridge needed to be replaced and I got it a Synder Diamond. Turned out to be wrong cartridge and faucet had a lot of hard water deposit build-up which made it hard to disassemble. Robert worked very hard to get the handle off, while I got correct form of cartridge. The correct one was actually a bit longer than needed, and Robert had to saw off a piece to get it installed. Kitchen faucet equally difficult and the 3 things he worked on today took basically all day. Robert was professional and careful in his work, fair in his pricing and I'm pleased with the results.