Septic tank repairs cost $600 to $3,000 by a septic system repair pro near you. Tank repairs usually cost less than $1,500 for each type of repair or part (listed below), while leach fields run $2,000 to $20,000.
Tank pump: $800–$1,500; a septic tank located lower than the drain field may require a pump to bring wastewater up to the drain field.
Pumping cost: $300–$600; even a properly functioning system will need to be pumped every three to five years to remove the solid waste.
Tank lid: $100–$300 to purchase and install; you'll only spend $50–$150 buying the lid and putting it on yourself.
Tank lid risers: $300–$1,000; they raise the lid level up to the surface for deeply buried tanks.