Septic Tank Replacement — Find Verified Companies Near You
Complete removal and replacement of a damaged, undersized, or failing septic tank with a new concrete, fiberglass, or polyethylene tank.
When a septic tank is severely cracked, collapsed, or undersized for your household, replacement is the most reliable long-term solution. While it's a significant investment, a new tank can last 25 to 40+ years with proper maintenance.
When to Replace vs. Repair
- Replace when: The tank has major structural damage, is collapsing, or is too small for your current household.
- Repair when: The tank has minor cracks, damaged baffles, or a leaking lid — issues that can be fixed without replacing the entire unit.
Tank Material Options
- Concrete: Most common and durable. Lasts 40+ years. Heaviest and requires heavy equipment for installation.
- Fiberglass: Lightweight, resistant to corrosion and cracking. Good for difficult-access sites. Lasts 25-30 years.
- Polyethylene (plastic): Lightest and most affordable. Easier to install but can shift in saturated soils. Lasts 20-30 years.
The Replacement Process
- The old tank is pumped and any remaining contents are removed.
- The old tank is excavated and removed (or crushed in place if concrete).
- The new tank is positioned and leveled in the excavation.
- Inlet and outlet pipes are connected and the system is tested.
- A local inspector verifies the installation before backfilling.
Frequently Asked Questions About Septic Tank Replacement
How much does septic tank replacement cost?
Septic tank replacement typically costs $5,000 to $15,000, including removal of the old tank, installation of the new one, and any necessary pipe connections. The cost depends on tank size and material.
How long does a septic tank last?
Concrete tanks last 40+ years, fiberglass tanks last 25-30 years, and polyethylene tanks last 20-30 years. Regular maintenance extends the lifespan of any tank type.
Can I upgrade to a larger tank during replacement?
Yes, and it's often recommended if your household has grown. A larger tank needs less frequent pumping and provides better treatment. Your installer can help determine the right size.
Find Septic Tank Replacement Providers Near You
Compare local companies and get free quotes for septic tank replacement services.