Larimer County · Northern Colorado
Drain Cleaning in Fort Collins, CO
Fort Collins has some of the most tree-shaded older neighborhoods in Northern Colorado, and the roots under them are a big part of why main lines back up here. Add expansive clay soil and long winters, and drain calls follow the seasons.

Clogged drain in Fort Collins?
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Fort Collins homes and their sewer lines
Old Town, the neighborhoods around Colorado State University and the streets west of College Avenue have bungalows and cottages from the early 1900s through the 1940s, often with clay sewer laterals. Mid-century ranches spread south through the 1950s to 1970s, and newer subdivisions fill much of south and east Fort Collins.
Fort Collins Utilities runs the city sewer system; the service line from the house to the main is generally the owner's to maintain.
Fort Collins drain patterns
Cottonwoods, ash, maples and elms are everywhere in older Fort Collins, and their roots are the leading cause of repeat main line backups in clay laterals. Northern Colorado's expansive clay soils swell and shrink with moisture, which can shift older pipe joints over time.
Rentals near campus see a lot of kitchen grease and toilet clogs, and winters bring frozen drain lines in garages and additions. See main sewer line clogs in Fort Collins and frozen drain lines in Fort Collins.
Call if you notice
- Spring main line backups in an Old Town or campus-area home
- Roots on the cable after a sewer clearing
- Kitchen and toilet clogs in a rental
- A drain that freezes in an attached garage
- Slow drains after a wet spring (shifting soil)
Fort Collins drain questions
Why do Fort Collins sewer lines get roots?+
Many older neighborhoods combine clay laterals with large cottonwoods, ash and maples, whose roots seek out pipe joints.
Who owns the sewer line in Fort Collins?+
The city maintains the main; the service line from your house is generally your responsibility.
Do landlords or tenants pay for clogs in Fort Collins rentals?+
It depends on the lease and the cause. Main line roots are usually the owner's issue; a clog from something flushed may be charged to the tenant.