Key Takeaways The average cost for oil tank replacement in 2024 is $1,900, with potential costs ranging from $800 to $5,500 based on various factors. Factors influencing oil tank replacement costs ...

Once all the old tanks – no oil leaking, of course, since they were properly drained first – were removed, the contractor was able to fit through the openings two 137-1/2-gallon new tanks.