Cost of Septic Tank and Installation in Denver, CO

Looking for cost of septic tank and installation in Denver, CO? Call SepticTank Solutions for a contact a provider — no obligation. Licensed septic pros serve Denver and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

Need help right now? If you have sewage backing up into your home or standing water in your yard, don't wait. These situations can become health hazards quickly. Stay away from the affected area and keep children or pets inside. We are ready to help you resolve this right now. Licensed, independent service providers serve your area — call now for a contact a provider. (978) 759-4817

What affects the price

The final bill for septic service depends on a few specific factors. The total volume of your tank, how long it has been since the last pumping, and whether the technician needs to dig to find your lids will all change the bottom line. If the system is particularly difficult to access or requires repairs to internal components like baffles or filters, the labor time increases. We provide exact pricing confirmed free on the call.

About this service

This covers the hardware, excavation, and professional setup of your waste management system. The final price tag is determined by the size of the tank needed for your household size and the soil drainage quality of your land. Exact pricing confirmed free on the call.

Summer is a peak time for household water usage, especially with guests visiting. Extra laundry, frequent showers, and outdoor water use can stress an older system. If you have a busy house this season, keeping an eye on your drain speeds helps ensure everything keeps flowing smoothly throughout the warm months.

Frequently asked in Denver

What is the purpose of a septic tank?

A septic tank acts as a mini wastewater treatment system for homes not connected to a public sewer. It holds and separates solids from liquids, allowing solids to settle and decompose. The liquid then moves to a drain field for further treatment in the soil. This process is crucial for preventing pollution and maintaining healthy groundwater.

What is the average cost of a septic tank?

How long do septic tanks usually last?

With proper maintenance, a septic tank can last for decades, often 20-30 years or more. Regular pumping and avoiding harsh chemicals extend its lifespan. Neglecting maintenance can lead to premature failure, requiring costly replacements sooner than expected, especially in Denver's varied soil conditions.

How often do septic tanks need to be emptied?

Most septic tanks need to be pumped every 3-5 years, depending on household size and water usage. In Denver, properties with higher usage or smaller tanks might need more frequent pumping. Ignoring this can lead to system clogs and potential backups. A professional can advise on the best schedule for your home.

How much does it cost to have a septic tank pumped?

How often should a septic tank be pumped?

Pumping frequency is usually every 3 to 5 years for typical households. This prevents solids from building up and overwhelming the system. Factors like the number of people in your Denver home and how much water you use will influence this. Regular pumping is a key part of septic system longevity.

Also serving nearby: Aurora · Thornton · Centennial · Westminster · Lakewood

All cities in Colorado →

More on this: EPA SepticSmart — maintenance schedules.

Service area details

716,577residents

4,681per sq mile

8ZIP codes served

Serving all of Denver — population 716,577; about 4,681 residents per square mile across 153.1 sq mi. ZIP codes covered include 80201, 80202, 80203, 80204, 80205, 80206, 80207, 80208.

Neighborhoods served in Denver: Cherry Creek, LoDo, Capitol Hill, Highlands, Congress Park — and every surrounding area.