Is Gunbarrel served by the City of Boulder's water utility?

Not automatically. Gunbarrel is unincorporated, and service comes through a water and sanitation district rather than the City of Boulder. We confirm which district serves a given address before filing any permit.

Are you the county utility department for Gunbarrel?

No. We are a private, family owned contractor. We are not a county department or a water district. We do the repair, replacement, or tap work and coordinate with whichever district or authority serves your address.

Why would a 1970s cast iron sewer line in Gunbarrel already need repair?

Boulder County's clay soils shift seasonally, and decades of that movement can pull joints out of alignment or create a low spot in the line, even in cast iron that was installed correctly. Age plus soil movement is usually the answer, not a material defect.

Do you charge for a sewer camera inspection before quoting a repair?

We scope the line before we quote anything that involves digging. Guessing at a repair from the surface is how people pay for the wrong work. The camera tells us the material, the depth, the slope, and where the defect actually sits, and that determines whether the answer is a cleaning, a spot repair, a liner, or a full replacement.

Who is responsible for the sewer lateral, the homeowner or the city?

Across the Denver metro the property owner is responsible for the sewer lateral from the building out to the main, including the portion under the street and under the sidewalk. That surprises people. It is also why a failure in the right-of-way turns into a permit conversation before it turns into a repair.

Can you repair a line without digging up the whole yard?

Often, yes. Where the host pipe still holds its shape and the grade is sound, lining or a pipe burst lets us rehabilitate the run from access points instead of trenching the length of it. Where the line has collapsed, lost its slope, or has to be re-routed, excavation is the honest answer and we say so.

Do you handle emergency line failures after hours?

Yes. Sewage backing into a basement and a water service blowing out under a driveway do not wait for business hours. Call (720) 935-6221 and you will reach us, not a call center script.

Service Area

Sewer and Water Line Service in Gunbarrel, CO

Sewer line, water line, and underground infrastructure work in Gunbarrel, Boulder County. Denver Sewer and Water scopes the line before quoting, pulls the permits, and handles the excavation with our own crews.

(720) 935-6221 Request a Free Quote

Gunbarrel is a longer drive from our southwest Denver yard than our closer service areas, and we schedule visits there rather than treating it as a same-day default.

Get Your Free Quote!

Family Owned and Operated, Not the City Utility

Licensed and Insured

Second-Generation Specialists

Fast Response Across the Denver Metro

Underground Line Work in Gunbarrel

Gunbarrel is an unincorporated community built mostly from the 1960s through the 1980s as a mix of residential subdivisions and business parks, and its sewer laterals reflect that era with cast iron, early PVC, and copper water services rather than the older clay found closer to central Denver.

Areas we cover: Gunbarrel residential subdivisions, Gunbarrel technology and business park corridor, Boulder Country Club area.

Tree lined Denver residential street with 1920s brick bungalows and mature elms — Older Denver blocks: shallow clay laterals, alley mains, and mature tree roots.

Services Available in Gunbarrel

Sewer Line Repair

Spot repair, lining, and full replacement after a camera tells us what is wrong.

Explore Sewer Line Repair

Sewer Scope Inspection

Camera and locate work before a purchase, a remodel, or a repair decision.

Explore Sewer Scope Inspection

Water Line Services

Pressurized supply work, from a pressure drop at the fixtures to a break under the driveway.

Explore Water Line Services

Trenchless Solutions

Lining and pipe bursting where the host pipe still holds its shape and grade.

Explore Trenchless Solutions

Drain Cleaning and Jetting

Hydro jetting and mechanical clearing for repeat blockages and grease.

Explore Drain Cleaning and Jetting

Excavation

Open-cut work, access pits, and restoration handled by our own crews.

Explore Excavation

Tap Services

Sewer, water, and fire line taps, including sizing and utility coordination.

Explore Tap Services

Storm Drains

Storm line repair, replacement, and drainage correction on private property.

Explore Storm Drains

Local Infrastructure Context

Contractor reviewing utility permit plans on a work truck tailgate with locate marks on the pavement — Locates, permits, and the right authority get handled before the first cut.

Permits and Authority in Gunbarrel

Gunbarrel is unincorporated, so it does not have its own city water or sewer department. Water and sanitary sewer service is provided through a water and sanitation district or a similar special authority, and the specific district serving a given address depends on the parcel. We confirm the servicing authority before doing any permitted work rather than assuming Boulder city utilities apply.

Right-of-way permitting for street cuts in Gunbarrel goes through Boulder County's public works process for unincorporated areas, which is a separate track from the City of Boulder.

Water and sanitary sewer authority is district-based and confirmed per address, not a single unincorporated county department.
Right-of-way and street cut permitting: Boulder County, for the unincorporated area.
Business park parcels may have different service arrangements than adjacent residential subdivisions.

Tap and Connection Notes

We identify the specific water and sanitation district serving a Gunbarrel address before applying for any tap or connection.
Business park parcels near the technology corridor often have commercial-grade taps that differ from the residential subdivisions nearby.
Boulder County right-of-way permits apply to any street cut in this unincorporated area.

Typical Pipe Eras in Gunbarrel

1960s to 1980s residential subdivisions: cast iron sewer and copper water services.
1970s and 1980s business park construction: PVC and early ductile iron.
Later infill: PVC sewer and PEX or copper water lines.

How Lines Fail Here

Bellies and offset joints from seasonal clay soil movement.
Cast iron corrosion at joints in original 1960s and 1970s construction.
Settlement cracking near business park foundations.

Gunbarrel Sewer and Water Questions

Nearby Service Areas

Sewer and Water in Boulder Sewer and Water in Niwot Sewer and Water in Louisville Sewer and Water in Superior

View all service areas

Need a sewer or water line crew in Gunbarrel?

Camera-first diagnosis, permits handled, and honest answers about what the line actually needs.

Request a Quote (720) 935-6221