Macbook spill damage is serious because it corrodes sensitive electronic components, but it’s not unfixable. At Apple you will hear quotes of $750 to $1600 to repair Macbook water damage. Their claim will be that they must replace the entire board with an overpriced tier 3 or tier 4 repair. The reality is that they are not interested in getting their hands dirty fixing the totally reusable parts you already have: it’s easier for them to gouge your wallet by replacing everything.

As soon as you get liquid in your Macbook you should stop using it! Turning it on will just make it worse as this allows electricity to flow through shorted wet components causing it to look like the board in the picture. Even when the damage is this extensive we can repair it, but it is best to minimize damage so we have a higher likelihood of fixing your board in a reasonable timeframe.