How much does it cost to replace a septic tank in Litchfield County?

This covers a new tank when the drain field is still good. The tank itself runs $700 to $2,000; the rest is excavation, removing the old tank, and labor. Removal alone can add $1,000 to $5,000 depending on access and the tank's condition. Ledgy ground and tight lots in the hills raise the digging cost. If the drain field has also failed, you are looking at a full system replacement instead — worth confirming with an inspection before you commit.