Concrete Septic Tank Cost

On February 25, 2026 By newsroom Topic: Home Services

Average Price Range

Concrete Tank Only: $700–$2,000
Total Installation: $3,000–$6,500 (including materials, labor, and permits).

Cost by Tank Size

| Tank Size (Gallons) | Average Cost | |-------------------------|-----------------------| | 750 | $900–$1,200 | | 1,000 | $1,250–$1,500 | | 1,200 | $1,500–$1,800 | | 1,500 | $1,600–$2,500 | | 2,000 | $2,300–$3,450 |

Cost Factors

Household Size & Usage
2 Bedrooms: ~750-gallon tank ($900–$1,200).
5–6 Bedrooms: ~1,200-gallon tank ($1,500–$1,800).
Larger households (8+ bedrooms) require larger tanks (~2,000 gallons).
Labor Costs
Range: $1,600–$4,500.
Labor accounts for 50%–70% of the total cost due to excavation, leveling, and tank placement.
Permits & Regulations
Permit Costs: $450–$2,300 depending on location.
Regulations may require larger tanks or specific leach field designs.
Site Preparation
Soil Test: $690–$2,200.
Land Survey: $380–$770.
Excavation Costs: $1,500–$6,300 (varies by terrain and accessibility).

Ongoing Costs

Maintenance
Pumping: $250–$1,250 (every 3–5 years).
Inspections: $200–$900 annually.
Repairs
Filter Repairs: $200–$300.
Septic Line Repairs: $1,000–$4,200.
Major Tank Repairs: $700–$5,000.
Insurance & Warranties
Home warranty plans covering septic systems: $30–$60/month.

Cost of Common Add-Ons

| Add-On | Cost Range | |-------------------------|-----------------------| | Landscaping | $1,260–$6,000 | | Utilities Installation | $6,500–$30,000 | | Well Drilling | $5,300–$9,100 | | Lawn Leveling | $1,000–$3,300 |

Tips to Save Money

Select the Right Tank Size
Avoid overspending by matching the tank size to your household’s needs.
Explore Incentive Programs
Check for state and federal funding (e.g., through the EPA) for septic systems.
Purchase Materials Independently
Buy gravel, pipes, or other materials directly to compare costs with contractor-provided estimates.