Centennial doesn't run its own water or sewer system; a business is served by one of several special districts, many of which distribute Denver Water, so service line and backflow rules depend on that district. The City of Centennial Building Division requires a permit for any plumbing or gas work. Call the number on this page to be connected with a local plumber in Centennial.
Districts, not a city utility
The city's GIS maps list a long roster of water districts in Centennial: ACWWA, Castlewood, Cherry Creek Village, East Cherry Creek Valley, Havana, Inverness, Southgate, Willows and South-East Englewood. Sewer has its own list, including Southgate Sanitation, South Arapahoe Sanitation, Castlewood and South Englewood Sanitation District No. 1. Southgate and Willows are confirmed Denver Water distributors. That means two neighboring business parks can have different utilities, different contacts for a main break and different rules.
In Southgate's area, for example, the property owner is responsible for maintaining, repairing and replacing the service line on the owner side of the curb stop and for the meter pit, and district rules list backflow devices among the owner's responsibilities. Southgate takes water break and sewer backup calls at 303-779-0261. Whether other Centennial districts require annual backflow tests wasn't confirmed, so ask your district before assuming a schedule. Gas is Xcel Energy.
Comparing the common commercial calls
| Problem | Typical first step | Who else may be involved |
|---|---|---|
| Backed-up building drain | Clearing the line and a camera check | The sanitation district if the main is suspected |
| Leak between curb and building | Locating the leak on the owner's line | The water district for curb stop shutoff |
| Backflow assembly concern | Testing and repairing the assembly | The district's cross-connection staff |
| Water heater replacement | Sizing the new unit to demand | City Building Division for the permit |
Signs to act on
- Restroom fixtures that run or leak between uses
- Sewer odor in a stairwell, break room or mechanical room
- Water pooling near the curb stop or meter pit
- Pressure that drops when several fixtures run together
- Rusty or lukewarm water from the tap
When to schedule work
Retail and restaurants usually prefer early mornings or after close, while offices often choose weekends. Fall is the time to drain irrigation and outdoor lines before hard freezes, and spring is when irrigation assemblies come back into service and get checked. Any job that changes plumbing or gas piping needs a city permit, filed with the Building Division at the Centennial Civic Center. Build that review and inspection time into any remodel or tenant finish so the space isn't left waiting on sign-off after the plumbing is done.
Commercial Plumbing questions in Centennial
How do we find out which water or sewer district serves our building?
Does a business here need its backflow assemblies tested every year?
Which office issues plumbing permits for a commercial property?
Can a plumber work before we open or after we close?
More plumbing services in Centennial
Commercial Plumbing nearby
Helpful guides
Sources
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