Frederick's sewer is handled by St. Vrain Sanitation District, which treats the building sewer line as the property owner's responsibility. That means a clog anywhere between your fixtures and the district's main is a plumbing job, not a district one. Call the number on this page to be connected with a local plumber in Frederick.

Clues that a drain needs clearing
- A shower drain that leaves an inch of water behind
- Toilets that need two flushes or bubble when the tub drains
- The kitchen sink backing up into the other basin
- Water rising at a basement floor drain during laundry
- A clog that returns within days of plunging
One sluggish fixture means a nearby clog, usually hair, soap or food. When several fixtures act up together, or water appears at the lowest drain, the building sewer is blocked, and you should stop using water until it's cleared.
How sewer works in Frederick
Frederick, a former coal-mining town founded as McKissick, is now a fast-growing family suburb in southwest Weld County and one of the Carbon Valley Tri-Towns with Firestone and Dacono. St. Vrain Sanitation District, established in 1986, provides sewer service to all three, with a treatment plant on Weld County Road 26 between roads 13 and 15. The district maintains its mains and has 24-hour staff for sewer backups at (303) 776-9570. The building sewer from your house to the main belongs to you.
Water is a different story: the Town of Frederick serves homes east of I-25, Left Hand Water District serves homes west of it, and Central Weld County Water District serves part of town. That split affects who you call for a water problem, not a drain clog.
In a newer home, plastic drain pipe is typical and holds up well; clogs come from grease, wipes and food. Older homes are more likely to have metal drains and older sewer pipe that collects roots and scale.
What affects the price
- Location: a fixture trap versus the building sewer under the yard.
- Access: a cleanout versus pulling a toilet.
- Method: cable, cutter head or water jetting.
- Inspection: a camera look if clogs keep returning.
- Repair: any damage found is priced separately.
- Timing: nights and weekends usually cost more.
What happens when you call
You are connected with an independent plumber who works in Frederick. Mention which drains are affected and whether anything has overflowed. If repair work needs a permit, the Town of Frederick Building Department at 401 Locust Street issues it, and town inspectors may verify the plumber's identity at inspection.
Drain Cleaning questions in Frederick
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?
Are chemical drain cleaners from the store a good idea?
What does it mean when every fixture in the house drains slowly at once?
More plumbing services in Frederick
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