Heater matrix broken.

[Pipsqueakaboo]

Okay, so. I had a few problems where my passenger footwell was filling up with water and k seal worked for a month or 2 and then my car started making a screeching sound from the dash when I had my air con/heating on. Then the fans started turning them self off. Now it won't work at all. I turned the heating on full. Changed the temp, the direction etc. Nothing. 

So my little pilch is broken :what can I do? 

My dad told me it sounds like it's a f*cked heating system basically :/ 

 
Help?!!