Typical cost
$3,619–$20,182
Average $11,667
National price data from Angi (HomeAdvisor), 142 projects. Updated June 2026.
Most people pay $3,619–$20,182, about $11,667 on average. Enter your ZIP to compare free quotes from top-rated pros near you.
Most people pay $3,619–$20,182 for septic system. Compare free quotes from local pros below to see what your project will cost near you.
| Tank Gallon Size | House Size | Average Price Range |
|---|---|---|
| 500 | 1 bedroom | $500–$900 |
| 750 | 2 bedrooms | $700–$1,200 |
| 1,000 | 3–4 bedrooms | $900–$1,500 |
| 1,200 | 5–6 bedrooms | $1,200–$1,600 |
| 1,500 | 6–7 bedrooms or small duplex | $1,500–$2,500 |
Describe your septic system project once and see who's available. Compare prices before you decide. No cost, no obligation.
Janie L. says, “We will definitely be calling JK Plumbing next time need any plumbing repairs.”
Hakan L. says, “My first septic pumping experience, but the provider was excellent, very nice guy and did an excellent job (from what I can tell)”
John Cherry says, “Our system is working way better. Ill definitely use Cold Is On The Right in the future because Chris is so knowledgeable.”
Corey Powell says, “We will definitely be using them again for future septic needs.”
Answers to commonly asked questions about septic system near you.
Most people pay $3,619–$20,182 for septic system, based on national price data from Angi (HomeAdvisor). The average is about $11,667. Small jobs can cost as little as $1,400, while large or complex ones can reach $40,000. Right now, local pros on this page list starting prices from $525.
The biggest price factors are septic tank size, anaerobic vs. aerobic septic tanks, alternative septic system, septic tank material, and leach field installation. Describe these details when you request quotes so each pro can price your job accurately. Right now, local pros on this page list starting prices from $525.
In the "Septic Tank Cost by Size" comparison, 500 is the least expensive at $500–$900, and 1,500 costs the most at $1,500–$2,500.
Get quotes from at least three septic system installation pros, share photos and measurements up front, and ask what each quote includes (materials, labor, travel, cleanup). Prices well below $3,619 can mean a smaller scope or lower-quality materials.
Yes. Comparing pros and requesting quotes on Project Mate is free with no obligation. You only pay the pro you hire.
JK Plumbing services“We will definitely be calling JK Plumbing next time need any plumbing repairs.”
“Our system is working way better. Ill definitely use Cold Is On The Right in the future because Chris is so knowledgeable.”
“We will definitely be using them again for future septic needs.”
“My first septic pumping experience, but the provider was excellent, very nice guy and did an excellent job (from what I can tell)”
| Septic Type | Average Price Range | Average Cost |
|---|---|---|
| Chambered | $5,000–$12,000 | $8,500 |
| Built wetland | $5,000–$12,000 | $11,500 |
| Sand filter | $7,000–$18,000 | $12,500 |
| Evapotranspiration | $10,000–$15,000 | $12,500 |
| Drip | $8,000–$18,000 | $13,000 |
| Mound | $10,000–$20,000 | $15,000 |
| Septic Tank Material | Average Price Range (Material Only) |
|---|---|
| Concrete | $700–$2,000 |
| Plastic | $500–$2,000 |
| Fiberglass | $1,200–$2,000 |
Get an exact price for your project. Pros quote on these details, so describe them once and compare quotes for free.
Get free quotesThe ranges on this page are national figures published by Angi (HomeAdvisor), most recently updated June 2026. The typical range is what most customers paid; low and high ends are the cheapest and most expensive jobs reported. The starting prices in the pro list are set by each pro and reflect your ZIP code.
Pricing depends on the scope of the job, materials, travel, and timing. Share the details of your project with a few pros to compare quotes. Check availability with a few pros to compare quotes for your project.
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Compare ratings, reviews, and hires from the best-rated septic system installation pros near you, including similar jobs done nearby.