How septic system pricing works

The starting price, the four things that move it, and what is quoted separately.

Have a written quote for the same job? Text us a photo of it and our price will be lower.

Call (720) 273-0109 Text us Book a site visit

The starting price

Most installs start around $15,000. The final price comes after a site visit, because soil, system type, home size and access set it. The county permit, soil test and design are extra and quoted separately, so your total may vary.

The four things that set your price

  • Soil. Soil that drains well allows a simple system. Clay, rock and high groundwater call for a larger or more involved one.
  • System type. A gravity system costs the least. Pressure-dosed, mound and engineered systems cost more because they have more parts.
  • Home size. Systems are sized by the number of bedrooms. More bedrooms means a larger tank and field.
  • Access. A flat, open lot is quick to dig. Steep ground, trees, rock and long distances add time and equipment.

See septic system installation for the system types and when each one is used.

What is quoted separately

  • The county permit. Each local public health agency sets its own fee.
  • The soil test. The evaluation of the soil on your lot that the design is based on.
  • The design. The plan the county reviews, drawn for your lot and your soil.

These three depend on your county and your lot, so they are quoted for your property instead of folded into a starting number.

We beat any written quote

Bring a written quote from a licensed installer for the same job at the same property, meaning the same system and the same scope of work. After we see the site, we will give you a lower price in writing.

How to get your price

  1. Call or text with the address and the number of bedrooms.
  2. We visit the site.
  3. You get the price in writing.

We visit your site and bid the job. A licensed septic installer does the work and holds the contract and the county permit.

Replacing instead of building new? See leach field replacement. For a longer read on cost, see what a septic system costs in Colorado.

Call or text (720) 273-0109.

Septic pricing questions

How much does a septic system cost?

Most installs start around $15,000. The final price comes after a site visit, because soil, system type, home size and access set it. The county permit, soil test and design are extra and quoted separately, so your total may vary.

Why can you not give an exact price over the phone?

Because the soil and the lot decide which system you need, and those have to be seen. A phone number would be a guess.

What is not included in the starting price?

The county permit, the soil test and the design. They are quoted separately for your property.

How does beating a quote work?

Bring a written quote from a licensed installer for the same job at the same property, meaning the same system and the same scope of work. After we see the site, we will give you a lower price in writing.

Does a bigger house cost more?

Usually. Septic systems are sized by the number of bedrooms, so a larger home needs a larger tank and field.

Who do I pay for the work?

The licensed septic installer who does the work holds the contract with you.

Book your site visit

We price every septic job in person, so the first step is a visit to your property. Send the address and we will call or text to set a time.

By sending this you agree we may call or text you back to set up your visit. See our privacy policy.

Or call or text (720) 273-0109