Service Area
Sewer and Water Line Service in Denver, CO
An independent, licensed plumbing contractor. Not affiliated with Denver Water or the City and County of Denver.
Sewer line, water line, and underground infrastructure work in Denver, City and County of Denver. Denver Sewer and Water scopes the line before quoting, pulls the permits, and handles the excavation with our own crews.
Our shop is at 2491 W Iliff Ave in southwest Denver, so most of the city is a short drive for a scope or an emergency call.
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Denver Sewer and Water LLC is a privately owned, licensed and insured plumbing contractor. Not affiliated with, endorsed by, or connected to Denver Water or any government entity. Visit denverwater.org for utility billing, meters, or city water service.
Underground Line Work in Denver
Denver Sewer and Water repairs, replaces, and taps sewer and water lines across the City and County of Denver. We scope the line with a camera before quoting anything that involves digging, we pull the Denver permits ourselves, and our own crews do the excavation and the restoration. That is the whole answer to what we do here.
Denver is not one kind of underground. The pre-1950 core from Baker and Capitol Hill out through Park Hill and the Highlands is largely vitrified clay laterals in short jointed sections, with cast iron inside the building and galvanized or older water services out to the main. Those neighborhoods fail at the joints, and mature street trees do most of the finding. Postwar Denver, roughly Harvey Park through Virginia Village, mixes clay, early cast iron, and Orangeburg, which deforms instead of cracking. Newer Denver, Green Valley Ranch, Central Park, and the redeveloped corridors, runs PVC and copper, and the calls there are usually construction damage, settlement, or a belly rather than material failure.
The other thing that makes Denver work different is the street. In Denver the property owner owns the sanitary lateral all the way to the main, including the run under the sidewalk and under the pavement. When a defect sits in the right-of-way, the repair adds permitting, traffic control, and a restoration spec written to the surface we cut. We plan that into the quote instead of discovering it on the second day.
We also do the work most plumbing companies subcontract out. Sewer taps, water taps, fire line taps, deep excavation, and coordination with Denver Water on the tap side are in-house here. If the job is buried and it is bigger than a snake, it is our lane.
Areas we cover: Capitol Hill, Baker, Washington Park, Park Hill, Highlands and LoHi, Five Points and RiNo, Sloans Lake, Berkeley and Sunnyside, Harvey Park, Virginia Village, Green Valley Ranch, Central Park.

Services Available in Denver
Sewer Line Repair
Spot repair, lining, and full replacement after a camera tells us what is wrong.
Explore Sewer Line RepairSewer Scope Inspection
Camera and locate work before a purchase, a remodel, or a repair decision.
Explore Sewer Scope InspectionWater Line Services
Pressurized supply work, from a pressure drop at the fixtures to a break under the driveway.
Explore Water Line ServicesTrenchless Solutions
Lining and pipe bursting where the host pipe still holds its shape and grade.
Explore Trenchless SolutionsDrain Cleaning and Jetting
Hydro jetting and mechanical clearing for repeat blockages and grease.
Explore Drain Cleaning and JettingExcavation
Open-cut work, access pits, and restoration handled by our own crews.
Explore ExcavationTap Services
Sewer, water, and fire line taps, including sizing and utility coordination.
Explore Tap ServicesStorm Drains
Storm line repair, replacement, and drainage correction on private property.
Explore Storm DrainsLocal Infrastructure Context

Who Has Authority Over Underground Work in Denver?
Three separate authorities can touch one Denver job. Denver Water owns the water main and the tap and sets the tap application. Denver's wastewater side reviews and inspects sanitary sewer work and the connection to the main. Denver's transportation and infrastructure department controls any opening of the street, the alley, or the sidewalk, and it sets the restoration standard.
In practice a water service replacement and a sewer lateral replacement on the same property follow two different approval tracks even when it is one trench in the ground. We carry both, schedule the inspections, and stay on site for them.
- Water main and tap authority: Denver Water.
- Sanitary sewer review, connection, and inspection: City and County of Denver.
- Street, alley, and sidewalk opening: Denver right-of-way permitting, with traffic control where the street width requires it.
- Tree protection rules apply along parkways and protected tree lawns.
- Restoration is specified by the surface that was cut, not by what is cheapest to place.
Tap and Connection Notes
- A new or resized water tap in Denver is applied for through Denver Water, and the fee schedule is set by meter size rather than by the length of your service line.
- Sewer taps into an existing Denver main require the main to be located and the new connection inspected before any backfill. We do not cover a connection that has not been seen.
- Fire line taps carry their own sizing, backflow, and acceptance requirements, and the fire protection scope has to agree with the civil drawings before the tap goes in.
- Right-of-way work in the older grid usually needs a traffic control plan because the residential streets are narrow and the parking is dense.
- Concrete gets replaced with concrete. Restoration in Denver follows the surface spec for what was opened.
Typical Pipe Eras in Denver
- Pre-1940 core: vitrified clay sewer laterals, bell and spigot, short sections, many joints.
- Original water services in galvanized steel, with lead-era goosenecks on some of the oldest connections.
- 1950s and 1960s: cast iron and early copper, often replaced only from the house to the property line.
- Orangeburg in postwar infill and in mid-century repairs, failing by deforming rather than cracking.
- Post-1990 and redevelopment areas: PVC laterals and type K copper water services.
How Lines Fail Here
- Root intrusion at clay joints, heaviest under mature parkway trees.
- Offset joints and bellies from decades of soil movement and expansive clay soils.
- Galvanized water service scaling shut from the inside, which shows up as falling pressure rather than a leak.
- Cast iron corroding through at the transition to the older clay run.
- Shallow alley laterals cracked under repeated heavy truck loading.
- Construction settlement and crushed pipe in redeveloped blocks and scrape lots.
Denver Sewer and Water Questions
Nearby Service Areas
Denver Neighborhoods We Cover
- Capitol Hill
- Baker
- Park Hill
- Highlands
- Five Points
- RiNo
- Sloans Lake
- Berkeley
- Sunnyside
- Harvey Park
- Virginia Village
- Green Valley Ranch
- Central Park
- Congress Park
- Curtis Park
- Globeville
- Athmar Park
- Barnum
- Bear Valley
- Chaffee Park
- Cheesman Park
- City Park West
- Cole
- Cory-Merrill
- Elyria-Swansea
- Hampden South
- Hilltop
- Jefferson Park
- Lincoln Park
- LoHi
- Lowry
- Marston
- Mayfair
- Montbello
- Montclair
- North Capitol Hill
- Northeast Park Hill
- Overland
- Platt Park
- Regis
- Ruby Hill
- Skyland
- Southmoor Park
- University Hills
- University Park
- Villa Park
- Washington Park
- West Highland
- Westwood
- Whittier
- All Denver neighborhood guides
Need a sewer or water line crew in Denver?
Camera-first diagnosis, permits handled, and honest answers about what the line actually needs.

