Not always.
When I had a faulty dish,they refused to replace it,after about 1/2 hour of debating with them that something outside my property and out of reach can't be my responsibility to keep useable,(the arm part had broken) I ended up leaving them. Think it was quoted as a £60 visit,£90 for the dish and then the engineers time as well,so was gonna be in excess of £200 to repair.