How Much Does It Cost To Replace A Septic Tank?

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How much does septic tank maintenance cost? Chuck Keene Septic Tank

How Much Does it Cost to Replace a Septic Tank?


A septic tank is an essential part of a residential or commercial property’s wastewater management system. Over time, septic tanks may deteriorate, leading to the need for replacement. If you’re wondering about the cost associated with replacing a septic tank, this article will provide you with the information you need.

Factors Affecting the Cost

The cost of replacing a septic tank can vary depending on several factors:

  1. Size of the tank: Larger tanks generally cost more to replace than smaller ones. The size of the tank is determined by the property’s water usage and the number of occupants.
  2. Type of tank: There are different types of septic tanks available, such as concrete, plastic, and fiberglass. Each type has its own cost implications.
  3. Accessibility: If the septic tank is buried deep or located in a challenging area, additional excavation or equipment may be required, increasing the overall cost.
  4. Soil conditions: Properties with challenging soil conditions, such as high water tables or rocky terrain, may require additional measures during the replacement process, adding to the cost.

Cost Breakdown

The cost to replace a septic tank can range from $3,000 to $10,000 or more, depending on the factors mentioned above. Here’s a breakdown of the typical costs:

  • Permitting and inspection: $500 – $1,000
  • Excavation and removal of the old tank: $1,000 – $3,000
  • New septic tank installation: $2,000 – $5,000
  • Additional costs (if applicable): These may include soil testing, backfilling, landscaping, and repairing any damages caused during the replacement process.


1. How long does it take to replace a septic tank?

The time it takes to replace a septic tank can vary depending on the complexity of the project. On average, it can take anywhere from 1 to 3 days.

2. Do I need a permit to replace a septic tank?

Yes, most jurisdictions require a permit for septic tank replacement. The cost of the permit is typically included in the overall replacement cost.

3. Can I replace a septic tank myself?

It is not recommended to replace a septic tank yourself unless you have the necessary expertise and experience. It’s best to hire a professional septic tank contractor who can ensure the job is done safely and up to code.

4. Are there any ongoing maintenance costs after septic tank replacement?

Yes, septic tanks require regular maintenance, such as pumping and inspections, to ensure proper functioning. The frequency of maintenance depends on factors like tank size and water usage.


Replacing a septic tank is a significant investment, and the cost can vary depending on several factors. It’s important to consult with a professional septic tank contractor to assess your specific needs and get an accurate cost estimate. Regular maintenance after replacement is crucial for the longevity and efficiency of your new septic tank.