Sub-Zero & Wolf designed such great products and have really kept up with their parts supply (they rarely have backorders or discontinue parts). We stock up on almost that we come across that we think we’ll need. We stock our warehouses and keep our trucks packed with all the essentials. When you call us we will start preparing for you. Once we know your model number, we make sure that we are prepared with any parts that you may need when our technicians arrive. You don’t pay extra for this, it is just part of running a great company, we show up prepared. This is the main reason why we are miles ahead of other appliance services that take weeks to diagnose, order parts and eventually install. We are a one stop shop and we have made it this way.