2491 W Iliff Ave, Denver, CO 80219

Storm Drain Work Across the Denver Metro

An independent, licensed plumbing contractor. Not affiliated with Denver Water or the City and County of Denver.

Denver Sewer and Water inspects, cleans, repairs, and replaces the privately owned storm drainage on residential and commercial property: area drains, trench drains, downspout collection lines, catch basins, and the buried runs carrying that water out to a connection point. We camera the system before quoting, because a storm line that floods can be blocked, broken, or simply mis-graded.

  • Private storm drainage on residential and commercial sites.
  • Camera survey before any repair recommendation.
  • Silt, gravel, leaf mass, and root removal.
  • Excavation, re-grading, and replacement in house.
  • Serving the Denver metro from southwest Denver.

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Sewer Lines
Water Lines
Fire Lines
Storm Drains
Septic Systems

Independent, family-owned. Not Denver Water or a city agency.

Family Owned and Operated, Not the City Utility
Licensed and Insured
Second-Generation Specialists
Fast Response Across the Denver Metro

Why Does Private Storm Drainage Fail?

Storm systems carry what the surface hands them, and in Denver that means grit, gravel, decomposed granite, leaf litter, and the sediment that comes off a landscape bed after every heavy rain. Unlike a sanitary line, a storm line has no continuous flow to keep itself scoured, so material settles and accumulates in the low spots between storms and then has to be moved by the next one.

The second driver is grade. Storm lines are often laid at minimal fall, and minimal fall leaves no tolerance for settlement. A run that settles an inch over a joint stops moving sediment and starts collecting it, and the flooding that follows is a grade failure presenting as a blockage.

(720) 935-6221

Signs your storm system needs attention

  • Water standing over a yard grate hours after the rain stopped.
  • Water backing up out of a basin instead of draining into it.
  • A window well or areaway that floods in every storm.
  • Downspouts discharging at the base of the wall because the buried line is blocked.
  • Soft ground or a depression tracking the line of the buried run.
  • Silt fans deposited at a grate after every event.
Excavator digging a deep shored trench for a storm drain and fire line at a Denver commercial site
Commercial scale excavation for storm drains, fire lines, and taps.

How We Diagnose It

How We Tell a Blocked Line From a Broken One

We camera the run. On storm lines that means clearing enough material to get a camera through first in many cases, because a line packed with silt will not pass a lens. What we are reading is whether the pipe is intact, whether it holds water at rest, and whether the material in it is loose sediment or root mass locked into a joint.

Standing water in a run at rest is the single most useful observation. On a properly graded storm line there should not be any. Where there is, the grade has been lost, and cleaning the run will restore drainage temporarily while guaranteeing the same call next season.

See storm drain video inspection

What the storm survey establishes

  • Pipe material, diameter, and condition.
  • Whether the run holds standing water at rest.
  • Sediment depth and composition.
  • Root entry points and joint separations.
  • Basin and sump condition.
  • Where the run discharges and whether that point is clear.

How a Storm Drain Call Runs

  1. 1

    Walk the site during or after a storm where possible

    Where the water actually stands tells us more than a dry site inspection does. We ask you to photograph it if we cannot be there for the event.

  2. 2

    Open access and clear enough to see

    Basins opened, obvious sediment removed, so the camera can pass.

  3. 3

    Camera the run to the discharge

    Material, grade, defects, and distance to each recorded out to the discharge point.

  4. 4

    Clean, repair, or re-grade

    Cleaning where the pipe is sound. Repair or re-grade where the camera shows the run cannot drain itself.

Backfilled and restored lawn after a sewer line replacement at a Denver home
Backfill, compaction, and restoration are part of the job, not an extra.

What Denver Customers Say About Working With Us

We had an underground water valve break on a Saturday. No fun and expensive to fix regardless of the repair company. Nevertheless, greatly apprecia
Daniel Reilly
Very direct and to the point. Extremely efficient and professional.
Sam Hayden
They cleared our drain where Roto Rooter couldn't and quoted us to replace the line under our concrete.
Jason Gold

What Drives Storm Drain Cost

Length of run, depth, access, and how much material is in the line all move the number. Storm work is also unusually variable because the system was often installed by a landscaper rather than a plumber, which means there may be no record of where it goes or what it connects to.

We charge for the survey and we apply what it finds. Anyone quoting a storm drain repair from a photograph of a puddle has not looked at the pipe.

Call (720) 935-6221 to get the system looked at properly.

Frequently Asked Questions

Water standing where it should be draining?

We survey the run before quoting a repair. Call (720) 935-6221.