Highlands Ranch Water provides wastewater service across the community, but for a sewer emergency it advises calling a plumber first to check the private sanitary service line. That private line is the owner's responsibility. Call the number on this page to be connected with a local plumber in Highlands Ranch.

What to expect after you call
You'll be connected with an independent local plumber who works in Highlands Ranch. The plumber will want to know which fixtures are affected, whether water is on the floor and whether the line has been cleared before. Most visits start with opening the line from a cleanout, then a camera inspection to find the cause and measure where it is. Because the district points owners to a plumber first, this step often settles whether the problem is in your line or the district's.
If the camera shows the private line is clear and the blockage is in the public main, the plumber will tell you to call Highlands Ranch Water's 24-hour emergency line at 303-791-2185.
Cost factors
- Depth and distance to the defect
- Driveways, patios, landscaping or fences over the line
- Spot repair, lining or replacement
- Douglas County permit, plus any Highlands Ranch Metro District approval
- Restoring sod, concrete or sprinkler lines afterward
Local conditions in Highlands Ranch
Highlands Ranch is a master-planned suburb developed from the 1980s onward and the most populous unincorporated community in Colorado. Highlands Ranch Water, the Centennial Water and Sanitation District, covers all properties in the Highlands Ranch and Solstice communities and treats wastewater locally at the Marcy Gulch Wastewater Treatment Plant. Plumbing problems on private property are generally the homeowner's responsibility.
With housing built from the 1980s on, most sewer laterals are plastic. Common issues are sags from settling, joints that separated where soil shifted, root intrusion at fittings and damage from later projects such as sprinkler systems, fences or patio footings. Because Highlands Ranch is unincorporated, building permits come from the Douglas County Building Division (303-660-7497). The Highlands Ranch Metro District says its approval is required before Douglas County issues building permits, so ask the plumber whether that step applies to your repair.
Quick checklist
- Stop using water and keep it off until the line is cleared
- Locate the cleanout, often outside near the foundation or in the basement
- Mark sprinkler heads and lines near the sewer route if you know them
- Have your HOA contact handy if work affects common areas
Sewer Line Repair questions in Highlands Ranch
Should I call the sewer utility or a plumber first?
Can the sewer line on a newer house still fail?
Do I need a permit to repair a sewer line here?
Can a broken sewer pipe be repaired without digging up the whole yard?
More plumbing services in Highlands Ranch
Sewer Line Repair nearby
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