How Much Does Trenchless Sewer Line Replacement Cost in Denver, CO? [2026 Data]

There's no beating the beauty of the Mile-High City, but Denver, CO, homeowners know that the region brings some challenges as well. Tree roots, extreme cold, and aging infrastructure can all lead to sewer line problems. The cost of sewer line replacement in Denver, CO, ranges from $2,010 to $6,348 and averages $3,068. Thankfully, the city has a number of incentives and support for homeowners preparing to replace this crucial bit of plumbing.

Trenchless Sewer Line Replacement Cost Factors 

Trenchless sewer line replacement in Denver, CO, is a minimally disruptive way to update the pipe that connects your home's plumbing to the city's wastewater system. However, Denver, CO, has many large property lots, all of which have pipes that sit below the 60-inch frost line. The need for longer pipes will have the largest effect on your replacement cost.

Size

Sewer line replacement in Denver, CO, costs $3,100 on average for traditional piping methods. However, trenchless systems cost more, and the distance your sewer line needs to travel to get to the street is the greatest cost factor you must consider. Even 10 extra feet could add thousands of dollars to the price you pay.

Sewer line lengths vary greatly, but the average is between 50 and 150 feet in Denver, CO. Some homes in the area have abnormally long sewer lateral lines, up to 200 feet. Below, you’ll find price ranges by sewer line length that can help you estimate your costs.

Excavation and Prep

If you’re replacing an old sewer line that’s too damaged for the lining process, a professional will also need to burst the existing pipe to make room for the new one. (The process doesn’t involve chemicals or anything that would ruin your soil or damage a garden or lawn. The old pipe is simply broken into small pieces.)

Pipe bursting (along with the lining) costs $160 to $200 per linear foot. Any additional labor needed for minor digging or tree root removal will cost anywhere from $70 to $270 per hour.

Sewer Line Pro Costs

The moment you detect any of the common signs of a clogged sewer line, contact a professional for an inspection. The Denver Urban Renewal Authority (DURA) may also reach out with knowledge of sewer line issues on your property and offer information about whether the fix is your responsibility and city-sponsored financing options.

Labor Costs

Trenchless sewer line replacement pros in Denver, CO, charge between $50 and $210 an hour, or about $64 to $265 per linear foot. During the initial inspection process, your pro will use a camera to look for root intrusion, "bellying" pipes from sagging soil, or signs of an older sewer pipe material that's no longer holding up. Clay and cast iron pipes are common in older properties in Denver, CO, for example.

Permits

Denver, CO, requires plumbing permits for all sewer line alterations and replacements. Permits cost 2.6% of the project’s total valuation, according to the Denver Transportation and Infrastructure website. In other words, you'd pay $260 for a $10,000 job. Additionally, the city charges $150 for the final inspection.

City Subsidies

In some cases, DURA offers residents low- or no-interest loans for emergency projects. The city determines eligibility based on income, and residents can apply through the DURA website. Keep in mind that in addition to financial support, DURA also oversees the sewer line replacement process to ensure residents receive a competitive quote and quality work.

Does Trenchless Sewer Line Replacement Increase Home Value?

Denver. CO's older homes, sprawling properties, and deep frost lines make the sewer line replacement process more challenging. However, the update will certainly increase home value and offer between a 40% and 50% ROI in the long run. A new sewer line will protect your home's pipes and lawn and prevent leaks that could even damage the structure of your home.

Additionally, the trenchless process is far more ideal and cost-effective for such long lateral sewer lines. Not only will you save money on landscape design and lawn installation, but you'll keep your classic Denver, CO, homestead looking beautiful without the months of disruption.

How Angi Gets Its Local Cost Data 

To help homeowners plan their next project, Angi provides readers with carefully researched cost data and upholds strict editorial standards. We start with national average project costs, which we collect by analyzing competitor information, retailer material costs, and input from professional contractors. We then apply local price index data to calculate location-specific estimates that reflect what homeowners typically pay in their local area. To do that, we use data from the U.S. Bureau of Economic Analysis (BEA), including its Regional Price Parities (RPPs), which measure price differences across cities. This helps us account for differences in labor, materials, and overall cost of living, so estimates in higher- or lower-cost areas better reflect real-world local pricing.

Every estimate undergoes a thorough editorial review to verify accuracy, consistency, and alignment with observed market conditions.

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