Lone Tree water comes from Southgate west of I-25 and Parker Water and Sanitation east of I-25, and in Southgate's area the owner owns the buried service line. A plumber can test your plumbing and that private line to locate a hidden leak. Call the number on this page to be connected with a local plumber in Lone Tree.

Lone Tree basics
Lone Tree is a planned, newer suburban city at the I-25 and C-470 junction. Water and sewer depend on which side of I-25 you live: Southgate Water and Sanitation Districts serve the west side, Parker Water and Sanitation District serves the east side, and Northern Douglas County Water and Sanitation District serves some homes in Terra Ridge. Southgate distributes Denver Water drinking water and reminds owners that they own the buried water service lines and sewer laterals serving their property.
Steps to take right away
- Turn off all faucets, appliances and the sprinkler controller.
- Read the meter, then read it again an hour later without using water.
- Dye-test each toilet tank to rule out a leaking flapper.
- If water is spraying or pooling, close the main shutoff.
- West of I-25, call Southgate at 303-779-0261 if water is surfacing near the meter or street; elsewhere, call the district on your bill.
- Photograph any stains and note when they started.
Symptoms and likely causes
| Symptom | Likely cause |
|---|---|
| Meter moving with everything off | A leak past the meter |
| Soft ground along the route to the house | Break in the owner-side service line |
| Damp carpet in a finished basement | Supply fitting, water heater line or slab leak |
| Bill jumps in summer | Irrigation line or valve |
| Hot spot on a tile floor | Hot water line under the slab |
| Toilet refills without use | Flapper or fill valve |
Cost factors
- How long it takes to isolate the leaking section
- Access in finished spaces and under slabs
- Whether the source is inside, along the buried line or in the irrigation system
- The repair itself and whether it needs a city permit
On permits, Lone Tree is specific. The City of Lone Tree Building Division says clearing stoppages or repairing drain or supply leaks typically does not need a permit, while replacing plumbing, installing a new water heater or repairing a sewer line inside the home does. Applications go through the city's online portal only. In a city with this much newer housing, many leaks turn out to be a loose fitting or a failed hose that can be fixed without one.
Leak Detection questions in Lone Tree
Who pays to fix a leak between the water main and my house?
Do I need a permit to repair the leak once it is found?
Can a newer house still have a hidden leak?
Should I shut off the water while I wait for the plumber?
More plumbing services in Lone Tree
Leak Detection nearby
Helpful guides
Sources
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