In Westminster, property owners maintain the sewer lateral from the house to the city main, including the tap. The City owns about 411 miles of sanitary sewer and requires a permit for underground sewer line repair. Call the number on this page to be connected with a local plumber in Westminster.

Westminster at a glance
Westminster is a suburban city north of Denver with farming roots, a large trail network and more than 3,000 acres of open space. Wastewater is treated at the City's Big Dry Creek facility or by partner Metro Water Recovery. Census estimates put the median home at 1987, with about 34% built before 1980, so older laterals of clay or cast iron sit alongside newer plastic. For main breaks or sewer issues, the City's Public Works and Utilities line is 303-658-2500.
What to do right now
- Stop using water in the house.
- Keep children and pets away from the overflow.
- Ask neighbors whether they're affected; if so, call 303-658-2500.
- Find the cleanout and clear access.
- Avoid chemical openers in a line that may be broken.
Signs and likely causes
| Symptom | Likely cause |
|---|---|
| Basement drain overflows during laundry | Restricted lateral |
| Roots pulled out at each cleaning | Root entry at older joints |
| Whole-house slow drains | Main line blockage |
| Recurring clog in a newer home | Sag from settled backfill |
| Odor or wet ground over the line | Cracked or separated pipe |
Because Westminster puts the tap on the owner, a defect right at the connection to the city main is still a private repair, and it may mean digging in or near the street. That kind of work takes more planning than a repair in the yard, so it helps to know the location before talking about cost. In Westminster's older homes, root intrusion in clay pipe is the most common finding, while newer homes more often show sags or joints that pulled apart as soil settled.
Cost factors
- Pipe material, depth and length of the failed section
- Whether work reaches the tap at the city main
- Driveways, trees or patios over the line
- Spot repair, liner or replacement
- A City of Westminster permit for underground sewer repair, through eTRAKiT (Building Division 303-658-2075)
When you call, you'll be connected with an independent local plumber who works in Westminster. The plumber will clear the line, run a camera to find the defect and explain options, including whether the repair extends to the tap.
Sewer Line Repair questions in Westminster
Who is responsible for the sewer pipe between my house and the main?
Do I need a permit to repair a sewer line here?
What is the sewer line under an older house here likely made of?
Should I call the sewer utility or a plumber first?
More plumbing services in Westminster
Sewer Line Repair nearby
Sources
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