Niwot Sanitation District makes each property owner responsible for the entire sewer service line, from the building drain to the district's main. That means clogs anywhere on that path are a plumber's job. Call the number on this page to be connected with a local plumber in Niwot.

What happens on the call
You'll reach an independent plumber who works in Niwot. Expect a few questions: which fixtures are slow, whether water has come up a floor drain or tub, and whether the problem built up over time or started all at once. Those answers decide whether the plumber brings a small auger for a single fixture or a main line machine for a whole-house backup. If you know where your cleanout is, mention it. If the line has been cleared before, say when.
What affects the price
- The location of the clog, from a fixture trap to the service line near the main
- Whether a cleanout gives easy access
- The tool used: hand auger, machine cable, cutter head or jetter
- A camera inspection to explain repeat clogs
- Repair needs, if the line is cracked or root-filled
- Off-hours scheduling
Niwot's sewer setup
Niwot is an unincorporated community on Highway 119 roughly halfway between Boulder and Longmont, with a historic downtown along 2nd Avenue. Its water and sewer come from two different special districts: Left Hand Water District for water and Niwot Sanitation District for sewer. The sanitation district collects and treats wastewater at its own plant and covers about seven square miles. Its office is at 7395 North 95th Street, and the emergency line is 303-652-2525, press 1.
The district's rules are firm about the private side. Each user constructs and maintains the entire sewer service line from the building drain to the main and must repair leaks or breaks after notice. Only the district or its representative may make connections to district lines. So if a camera inspection turns up a broken section, the repair is yours, and any work at the connection to the main has to go through the district.
Because Niwot is unincorporated, building permits come from Boulder County Community Planning and Permitting, not a town office.
Before the plumber gets there
- Stop running water if the main line is backing up
- Move belongings away from basement floor drains
- Find the cleanout cap, if you know the area
- Skip chemical drain openers
- Have the district's emergency number handy in case the main is involved
Drain Cleaning questions in Niwot
Who pays to fix the sewer line between my house and the street?
Who do I call first when sewage backs up into the basement?
Is a camera inspection worth it after a main line clog?
Why does a drain clog again a few weeks after it was cleared?
More plumbing services in Niwot
Drain Cleaning nearby
Helpful guides
Sources
Last updated: