Fort Collins · Larimer County
Basement Sewer Backup in Fort Collins, CO
Fort Collins has many homes with basements and floor drains, which are the lowest point where a blocked lateral backs up first.
First: Stop all water use in the house: no flushing, showers, laundry or dishwasher. Keep everyone out of the basement.
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Fort Collins basement sewer backup: call now
(833) 615-1180Do this first
Stop all water use in the house: no flushing, showers, laundry or dishwasher. Keep everyone out of the basement.
Call right away if: a frozen pipe that has split or is dripping as it thaws; water coming through a basement ceiling or wall; sewage backing up through a basement floor drain.
Pick what's happening in your Fort Collins home
Sewage in the basement
Do now
- Tell everyone in the house: no showers, laundry, dishwasher or flushing until the line is clear.
- Keep kids and pets out of the basement.
- Note where the sewer cleanout is for the plumber.
Avoid
- Skip the chemical drain opener: it won't clear a main-line block and it burns whoever snakes the line next.
- Every flush upstairs adds more water to the basement.
Call: Right away: sewage at a floor drain means the main line is blocked.
Full step-by-step guideLocal conditions
Basement Sewer Backup in Fort Collins: what's different here
Fort Collins has many homes with basements and floor drains, which are the lowest point where a blocked lateral backs up first. Roots in older clay lines and grease buildup are the common causes, and heavy spring storms can also stress the system.
After cleanup, a camera inspection finds the cause, and a backwater valve can keep future backups out of the basement. Sewage-contaminated carpet and drywall should be removed, not dried.
If it happens in Fort Collins: the likely cause and the first move
- 1. Local condition
In Fort Collins homes with basements, the floor drain is the lowest point in the plumbing.
- 2. Risk to the home
A blocked main line backs up there first.
- 3. What goes wrong
Sewage coming up the basement floor drain.
- 4. What to do
Stop using water upstairs, keep people out of the water, and call.
Basement Sewer Backup: the full guide
More on basement sewer backup: signs, steps and costs.
Basement Sewer Backup questions from Fort Collins homeowners
Why does sewage come up my basement floor drain?
Usually a blockage between the drain and the city main, such as roots or grease. If neighbors are also backing up, the city main may be involved.
Does insurance cover a basement sewer backup?
Only with a sewer or water backup endorsement on most Colorado policies.
Service area
Basement Sewer Backup near Fort Collins
Related
Other Fort Collins services

Sewer Camera Inspection
A sewer camera inspection runs a waterproof camera through the main sewer line from a cleanout to the city main, recording roots, cracks, offsets, bellies and material changes, and locating problems by depth and position.
Learn more
Sewer Line Repair & Replacement
Sewer line repair fixes a damaged section of the main sewer line, while replacement renews the whole line.
Learn more
Hydro-Jetting
Hydro-jetting sends high-pressure water through a drain or sewer line to scour grease, scale, sludge and fine roots off the pipe walls.
Learn more
Need basement sewer backup in Fort Collins?
Roots, grease, collapsed pipe or city main surcharges.
