Olshan is a scam

I needed a water heater replaced and they came and installed the water heater for $850 which I agreed to. They then said that I need an extra $1100 worth of work. The charged me for a second man at $100... when the second guy came up, he acted as an assistance to the main guy by just handing him supplies. Then they charged me to build a platform made out of a $10 piece of wood under the water heater at a rate of $175. It goes, on, they charged me over $200 for a pan drain that cost about $15 to buy at the store. This company will rip you off more than you can imagine. DO NOT GO WITH THEM!!!