For a Niwot plumbing emergency, close the main valve, and if you smell gas, leave the house and call 911 and your gas utility from outside. Then call the number on this page to be connected with a local plumber in Niwot.

What to expect when you call
The number on this page connects you with an independent plumber who serves Niwot. Be ready to say what failed, whether the water is off and the address. Ask about evening and weekend pricing before the plumber heads out. Arrival depends on the hour and the plumber's workload, so no specific time is promised.
What affects the cost
- Time. Night, weekend and holiday calls usually cost more.
- Access. Pipes in finished spaces take longer to reach and repair.
- Location of the failure. A leak beyond the meter pit or a break in the sewer lateral is the owner's, and may involve digging.
- Permits. Niwot is unincorporated, so building permits come from Boulder County's Building Safety and Inspection Services.
Local conditions in Niwot
Niwot is a small unincorporated community on State Highway 119 about halfway between Boulder and Longmont, and water and sewer come from two separate special districts. Left Hand Water District supplies the water, blending its own chlorine-disinfected treated water with water bought from Boulder, Longmont and Central Weld County Water District. The district locates its lines only up to the meter pit; service lines beyond the pit are private and belong to the customer. Left Hand's office answers at 303-530-4200 on weekdays from 8:30 a.m. to 4:30 p.m., and the sheet we use lists no separate after-hours number.
Sewer comes from Niwot Sanitation District, which collects and treats wastewater at its own plant and takes emergencies at 303-652-2525, press 1. Its rules make each owner responsible for the entire sewer service line from the building drain to the main, and only the district or its representative may make connections to district lines. So a backup in one house is the owner's line to clear, while a problem in the main goes to the district.
We did not find the gas utility for Niwot in our research. If you smell gas, leave and call 911 and the utility on your gas bill.
Checklist before the plumber arrives
- Main valve closed and a low faucet open
- Water heater gas or power off if leaking
- No flushing or laundry during a backup
- Photos of the damage taken
- Location of the sewer cleanout and meter pit known, if you can find them
Emergency Plumber questions in Niwot
Sewage is coming up through a basement floor drain. What comes first?
Water is bubbling up in the yard near the meter pit. Who fixes that?
Who do I call when a water main breaks in the street?
Are older homes more likely to have plumbing emergencies?
More plumbing services in Niwot
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