What Is the Average Septic Tank Installation Cost in Granite Falls?

Centennial Septic Service Granite Falls septic tank installation costA septic system for your Granite Falls property can be a significant investment, especially if the home isn’t connected to a municipal sewer line. Of course, the issue of the septic tank installation cost is going to arise. What can homeowners expect to pay for this essential fixture?

The Average Cost

The total septic installation cost can vary by a wide margin since there are different models. The cost can fall anywhere between $3,000 and $12,000. However, several high-end models can reach upwards of $23,000.

Septic Type

The most common septic system is gravity fed and uses natural anaerobic bacteria to break down the biosolid waste. The average cost for this conventional system is around $3,500 to $12,000.

There are also alternative septic systems designed to accommodate areas with insufficient drain fields. This may be the case for a home with multiple rooms and resting on a small plot of land. Expect to pay more, up to $15,000 for these alternative systems.

Tank Size

The average three-bedroom home will require a 1,000-gallon tank and runs around $1,000 and $1,500. Larger and upscale homes with six or more bedrooms may require a tank size as large as 1,750 gallons that costs $2,000 to $3,000.


Septic tanks come in several types of materials. Plastic polyethylene and fiberglass are the most economical options. Concrete is the most common type and provides a good balance of cost and durability. It also has the longest lifespan and is more resistant to accidental damage from machines like excavators. 

We Provide an Estimated Septic Tank Installation Cost in Granite Falls

As you can see, the septic tank installation cost can vary by a wide margin. Get in touch with Centennial Septic Service for a consultation. If you’re an existing septic system owner, rely on us for septic pumping and the occasional septic repair.

Consultation for Septic Tank Installation Cost

Serving the communities of Lake Stevens, Marysville, Arlington, Granite Falls, Silvana, Warm Beach, Stanwood & Machias

Posted on June 12, 2024 | Published by Ignite Local | Related Local Business