Henderson is a patchwork of unincorporated Adams County and parcels annexed by Commerce City, Brighton and Thornton, so who provides sewer depends on the exact address. A replacement covers the private pipe from your house to whichever public sewer serves you. Call the number on this page to be connected with a local plumber in Henderson.

Signs your line needs more than a repair
- The main line clogs again shortly after it's cleared
- The lowest drain in the house backs up first
- Toilets gurgle when other fixtures drain
- Sewage smell outside, or a wet patch along the line's path
- Camera footage showing breaks, roots or sags at several points
One defect on sound pipe is often worth repairing by itself. Replacement is the better choice when the camera shows damage along much of the line.
Henderson's sewer picture is address by address
Henderson is a small unincorporated community with a post office dating to 1894 and a few older buildings along Brighton Road north of 120th Avenue. Much of the surrounding area has been annexed by Commerce City, Brighton and Thornton, which means the sewer provider, the rules for the connection and the permit office all depend on which side of a boundary your lot sits.
We could not verify a sewer provider for Henderson homes. South Adams County Water and Sanitation District's Williams Monaco Wastewater Treatment Plant is located on Monaco Street in Henderson, but that doesn't establish which homes are on its sewer. The honest answer is that providers vary by address. Check your utility bill for a sewer charge and the provider's name; if there's none, your home may not be on municipal sewer, and Adams County can help you sort out what serves the property.
What affects the cost
- Length and depth of the private line
- Method, trenchless or trench, based on whether the pipe still holds its slope
- Surfaces and plantings over the route
- Connection rules set by whichever provider serves the address
- Permit from the county or the annexing city
What happens when you call
You'll be connected with an independent local plumber who works in the Henderson area. A camera inspection usually comes first. For unincorporated parcels, permits go through Adams County's One Stop Permitting Center and Building Safety (720.523.6800, 4430 South Adams County Parkway in Brighton), and contractors working in unincorporated Adams County must be registered with the county. Annexed parcels go through Commerce City, Brighton or Thornton instead. The plumber can help confirm which jurisdiction applies before the work is scheduled.
Sewer Line Replacement questions in Henderson
How do I find out which district handles sewer at my address?
Who issues the permit for a sewer line replacement here?
My home isn't on municipal sewer. Does sewer line replacement apply to me?
What affects the price of replacing a sewer line?
More plumbing services in Henderson
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