Answer up front

Published third-party data puts sewer line in the 1,388–5,323 dollar range nationally — The published spread is wide because two houses on the same street can differ by depth, by the surface above the pipe and by whether a cleanout already exists. Every contractor prices independently, so treat that as a sanity check on a quote rather than a quote itself.

Cost ranges reported by third parties — reported ranges for sewer line in Colorado

Reported cost ranges, 2026. Ranges are published third-party figures, not quotes.
JobReported rangeWhat pushes it higher
Full replacement, per linear foot$50–$250Depth, soil type, and whether the run passes under paving or mature trees.
Cured-in-place lining, per linear foot$90–$250Bends, diameter changes and a host pipe that first needs jetting and cleaning.
Pipe bursting, per linear foot$60–$200A cast iron host pipe, shallow cover and utilities crossing the line.
Open-cut excavation, per linear foot$50–$200Hand digging near other services, shoring requirements and spoil removal off site.
Cracked pipe spot repair$600–$1,050A second defect found on camera turns a spot repair into a longer section.
Breaking and restoring concrete slab, per linear foot$300–$350Slab thickness, reinforcement and the finished flooring above the pipe run.
Camera inspection before the quote$100–$500Longer runs, poor access and a recorded report supplied with the survey.

Not a quote. These are third-party reported ranges, sourced from Angi, "What Does Sewer Line Replacement Cost? [2026 Data]", angi.com/articles/how-much-does-sewer-line-replacement-or-repair-cost.htm, fetched 2026-08-11. Only a licensed contractor who has seen the job can price it.

What moves the number — the 5 factors that change the number

Pricing is set independently by each contractor, so this page lists what moves the number rather than a figure.

  1. 01

    Length and depth of the run, and what is above it (lawn versus driveway versus street)

  2. 02

    Trenchless versus open-cut excavation

  3. 03

    Pipe material and failure mode — roots, offset joint, belly, collapse

  4. 04

    Whether the defect is on private property or in the public right-of-way

  5. 05

    Permit, traffic control and surface restoration requirements

Symptoms and triggers — is sewer line repair actually the fix?

Paying for the wrong job is the most expensive mistake here. These are the signs that point to sewer line rather than something else.

  • Sewage backing up into the lowest drains in the house
  • Multiple fixtures draining slowly at the same time
  • Sewage smell in the yard, or unusually lush patches of grass
  • Soggy or sunken ground along the sewer run
  • Repeated main-line clogs despite cleaning

What the work involves — so a quote can be read line by line

  1. Camera inspection through the cleanout to locate and classify the defect
  2. The line is located and depth-marked above ground
  3. Repair method is selected — spot repair, pipe bursting, CIPP lining or open trench
  4. Permits and utility locates are arranged by the contractor
  5. Repair is completed, re-inspected on camera and the surface restored

Sewer Line cost by city in Colorado

Labour rates, permit fees and travel distance all differ across Colorado, which is why the same job is not the same number in every market.

Colorado markets with a dedicated sewer line page
CityCountyPermit authority
Sewer Line in Denver Denver CountyDenver Community Planning & Development
Sewer Line in Colorado Springs El Paso CountyPikes Peak Regional Building Department (city and El Paso County)
Sewer Line in Aurora Arapahoe CountyAurora Building Division
Sewer Line in Fort Collins Larimer CountyFort Collins Building Services
Sewer Line in Lakewood Denver CountyLakewood Building Division
Sewer Line in Thornton Adams CountyThornton Building Inspection Division
Sewer Line in Westminster Adams CountySet locally
Sewer Line in Arvada Jefferson CountySet locally
Sewer Line in Centennial Arapahoe CountySet locally
Sewer Line in Pueblo Pueblo CountySet locally
Sewer Line in Greeley Weld CountySet locally
Sewer Line in Boulder Boulder CountySet locally
Sewer Line in Highlands Ranch Arapahoe CountySet locally
Sewer Line in Longmont Boulder CountySet locally
Sewer Line in Loveland Larimer CountySet locally
Sewer Line in Broomfield Broomfield CountySet locally
Sewer Line in Grand Junction Mesa CountySet locally
Sewer Line in Castle Rock Douglas CountySet locally
Sewer Line in Commerce City Adams CountySet locally
Sewer Line in Parker Douglas CountySet locally

Before anyone touches a pipe

Verify the licence. It takes two minutes.

  • Who licenses the work: State Plumbing Board, Colorado Division of Professions and Occupations (DORA) together with the local jurisdiction.
  • Who pulls the permit: the licensed contractor, never the homeowner.
  • What to ask for: the licence number, the registered name behind it, and an insurance certificate issued to the property address.
Check a licence numberColorado State Plumbing Board Colorado licensing in full
Chrome faucet with running water
Independent licensed professionals

How to avoid overpaying for sewer line

  • Get the scope in writing before the number: what is being replaced, what is being repaired, what is being left alone.
  • Ask whether the price is flat-rate or time-and-materials, and what the diagnostic charge covers.
  • Ask whether the permit and inspection fee is inside or outside the figure.
  • Ask what happens if the job opens up and turns out to be larger — get the change-order rule up front.
  • Confirm the warranty term on parts and on labour separately.
  • Verify the licence number on the Colorado State Plumbing Board register before any work starts.

Answers first

Frequently asked — sewer line cost in Colorado

Who is responsible for the sewer line — me or the city?

In most jurisdictions the property owner owns the lateral from the building to the point of connection, which often extends under the sidewalk and into the street. The municipality owns the main. Where the boundary sits varies by city, so confirm with your local utility before authorising excavation.

Is trenchless sewer repair always better?

Not always. Trenchless methods avoid destroying driveways and landscaping and are usually faster, but they require the host pipe to be in a repairable condition and continuous. A fully collapsed or badly misaligned line, or one with a severe belly, generally still needs excavation.

Does homeowner's insurance cover sewer line replacement?

Standard policies typically exclude gradual failure and wear of an underground line, though some carriers sell a service-line endorsement. Sudden damage may be treated differently. Check your specific policy language before assuming coverage.

Who handles the permit for sewer line in Colorado?

The licensed contractor pulls the permit — never the homeowner. If a contractor proposes skipping a required permit, treat that as the signal to stop and verify the licence.

What warranty applies to the work?

Whatever the contractor offers in writing — PlumberColorado is not a party to the agreement. Ask for labour and parts warranty terms in the quote, and keep the licence number with the paperwork.

How does the callback request work?

The 30-second form asks for a name, ZIP and the number to reach you on. The request routes to an independent licensed professional covering that area, and they call you back. Consent for marketing contact is optional — the request goes through with or without it.

Which areas does PlumberColorado cover?

All of Colorado: the site lists every covered city with real ZIP codes, the county permit authority and nearby coverage, so requests route to a professional already working that area.

Is PlumberColorado a plumbing company?

No. Independent licensed professionals perform and contract the work directly with you. PlumberColorado routes the request and links every page to the official Colorado licence register.

Get connected

Sewer Line in Colorado

The form takes half a minute. It routes to an independent licensed pro covering Colorado; everything else — scope, timing, price — you agree with them directly, licence verified first.

  • Requests handled around the clock
  • An independent licensed pro calls you back
  • No obligation to hire

Prefer a call back?

Takes 30 seconds — an independent licensed pro calls you back.

Records for this request are provided electronically; a paper copy is free on request and the agreement can be withdrawn at any time — electronic records notice.

Submitting without the box still sends the request. PlumberColorado is a referral service, not a plumbing contractor. Stop contact any time