How Much Does It Cost to Pump a Septic Tank in Denver? [2026 Data]

Denver, Colorado, has a higher cost of living than the national average, influencing pricing on professional services like septic tank pumping. You’ll pay an average of $307 to have your septic system pumped in Colorado, or between $265 and $353, depending on the size of the tank, how much waste is inside, and whether you need repairs or other additional septic services.

Septic Tank Pumping Cost Factors 

The most important cost factors to keep in mind for septic tank pumping in Denver, Colorado, are tank size, pumping frequency, accessibility, and the season you hire your company in.

Size

Pumping a 600-gallon septic tank—like a small septic tank for one toilet—may cost as little as $250, while pumping a 2,000-gallon septic tank may cost $1,250 or more. The most common septic tank sizes, however, are the more moderately sized ones, averaging between 1,000 and 1,500 gallons.

Here’s a breakdown of septic tank pumping costs by size:

Usage

Tanks with high usage will require more frequent pumping. For example, if you frequently use large amounts of water, put food down the garbage disposal, or host parties with lots of guests, you’ll need to pump your septic tank more often. On the other hand, larger septic tanks take longer to fill and therefore require less frequent pumping.

Pumping Frequency 

The cost of septic tank pumping can rise sharply when property owners fail to have their tanks pumped every three to five years. 

Regardless of the type of septic system you have, not pumping it on schedule will cause solids to accumulate until a tank's holding capacity is depleted, resulting in a clog. On average, septic tank repairs cost $1,830, but they can range from $600 to $3,000, depending on the severity of the issue. 

Tanks should be pumped more frequently in larger households. Pumping should also be more frequent if your home has a garbage disposal, you entertain frequently, or you often dump harsh cleaning solutions down your drains.

Here’s how often you should pump your septic tank based on its size and how big your house is:

Seasonality 

During certain times of year, especially in areas with harsh winters, demand for septic tank services fluctuates, leading to varying prices.

We don’t recommend booking a septic tank pumping in the winter months if your area gets heavy snow and ice. Frozen ground and slippery conditions make it more difficult for pros to access your tank, increasing labor and equipment costs.

Spring is the most popular time for homeowners to get their septic systems pumped and checked. The increased demand can cause prices to spike. If your tank isn’t too full, consider booking in the summer or early fall, when demand is lower. 

Access to Tank

If your septic tank is located in a hard-to-reach area, such as under a deck or on uneven terrain, it can make the job more challenging and expensive. Similarly, tanks that are buried deeper underground require more effort to uncover and pump, so it’s a good idea to budget for a higher pumping fee.

Septic Tank Ongoing Costs

Septic tank pumping is just one of the costs associated with properly maintaining a home’s septic system. Here are some additional services and ongoing expenses that are often associated with septic tanks:

Sewer Line Inspection

While the average price for a sewer line inspection is $200, homeowners can expect to pay anywhere from $150 to $450. Using a camera to inspect a sewer line, a plumber will look for issues that could lead to costly repairs down the road. Some of the red flags a sewer line inspection can uncover include line breakage, embedded objects, tree roots, and rocks.

Clog Removal

The average cost of septic tank repairs is $1,830. Clog removal is the most common septic tank repair because it's easy for objects to find their way down a drain. The most common method for resolving a septic tank clog is to use an auger to reach the clog.

Homeowners may not realize there's a clog until they notice telltale signs, such as slow-draining sinks, standing water near the tank, foul odors, gurgling sounds in the plumbing system, or water and sewage bubbling from toilets, drains, and sinks.

Maintenance 

While septic tank pumping is needed every three to five years, annual tank inspections and maintenance can help detect issues before they worsen. The maintenance technician can also let you know when it's time to pump. Septic tank maintenance costs range from $260 to $350. 

Field Aeration

Aeration is the process of upgrading a septic system without actually doing a major update. This process costs between $1,000 and $5,000 and revives sluggish septic systems without replacing the full leach field. It converts your system from an oxygen-free, anaerobic environment to an oxygen-rich, aerobic environment.

Yard Cleanup

Yard cleaning is necessary if sewage from a septic system spills into the grass. While some people prefer to handle the mess by using bleach and water to disinfect the area, others hire professional yard cleaners to restore the area's hygiene and get rid of the septic smell outside. Lime is also frequently used to quickly break down sewage. Outdoor sewage cleanup costs an average of $7 to $15 per square foot. 

Septic Tank Cleaning

While the average cost to clean a septic tank is $300, cleaning costs for large tanks can run closer to $350.

Septic System Pro Costs

Additional cost factors of hiring septic professionals in Denver, CO, include fees for partial replacement and repair, charges for hard-to-access tanks, or extra costs to pump out large volumes of grease.

Location

It’s typically cheaper to have a septic tank pumped in wide-open, rural areas (unless they’re very far from your septic company’s location), as it’s easy to get the pumping equipment in position. Pumping a septic tank in a densely populated urban or suburban area usually takes more time, costing you more on your final bill. You may pay an extra $200 to $300 if your septic tank is hard to access.

Extra Services

Extras like filter cleaning, effluent filter replacement, and baffle repairs are essential septic tank maintenance steps, but they won’t be included with pumping costs. These services add $250 to $1,000 to your final costs.

Excess Grease

Excess levels of fat, oil, and grease are not only detrimental to the lifespan of your septic tank, but they also make pumping more difficult and time-consuming. Excess fat, oil, and grease in your septic tank can add anywhere from $200 to $800 to your final charge.

Additional Pros to Consider Hiring

If you decide to hire a landscaper to restore your yard after septic services, the cost will range from $500 to $3,000, depending on the size of the area. If you need plumbing services to address septic-related issues such as sewage backups or drain clogs, expect to pay your Denver plumber between $75 and $150 per hour.

Does Septic Tank Pumping Increase Home Value?

Septic tank pumping doesn’t boost home value in the usual sense. That said, an unmaintained septic tank can cause a wide range of unpleasant issues, all of which can be detrimental to your home's value. For a smooth sale in the future, keep up with regular septic tank pumping as needed.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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