The metro is not one plumbing market, it is four or five stacked on top of each other: brick bungalows from the 1920s in central Denver, ranch tracts from the 1950s and 60s in the first ring, sprawling 1990s subdivisions in Douglas and Adams counties, and foothills properties on wells west of Golden. What breaks, and what it costs to reach, depends on which of those you live in.
What the housing stock does
Age tells you most of what you need to know about a metro plumbing problem before anyone arrives. Pre-war neighbourhoods — Baker, Congress Park, Park Hill, older Englewood and Wheat Ridge — still have clay sewer laterals running under sixty-year-old trees. Roots find the joints, the joints hold paper, and the first symptom is a floor drain or a basement toilet rather than the fixture you were using. That is a camera job before it is a digging job.
The 1950s and 60s ranch belt tends to have galvanised steel supply lines that have narrowed from the inside out. The tell is pressure that is fine at one fixture and poor when two run at once, and rusty water after the house has sat empty for a weekend. Post-1990 subdivisions rarely have pipe-age problems yet; what they do have is builder-grade pressure regulators reaching the end of their service life all at once across an entire street, and water heaters installed the same year finally failing the same year.
West of Golden and up through Evergreen, Conifer and Indian Hills, add wells, pressure tanks and septic systems to the list, plus driveways that a service truck may not be able to climb after a storm.
Pre-1970 metro core? Galvanised and cast iron behave differently, and the pro should know before arriving.
Ask About Old Metro PipeThe calls we hear most
Four problems account for the bulk of metro calls. Sewer backups in the older core, where a lateral has been failing quietly for years. Water heaters, because the metro has enough housing built in waves that the failures come in waves too. Hidden leaks, especially under concrete floors in expansive clay soils that swell and shrink through every wet-dry cycle and put constant movement into buried pipe. And frozen lines, which in the metro are almost always in an unheated space someone forgot about — a crawlspace vent left open, a garage wall, an exterior hose bib without a frost-proof valve.
Not sure whether this is an emergency?Describe it on the phone. If it can wait until morning, you will be told that.
Talk it through nowWatching the forecast drop? The week before a hard freeze is the cheap week to act.
Get Ahead of the FreezeSeason by season
Metro plumbing has a calendar. The first hard freeze in late October or November brings hose bibs and irrigation lines that were never blown out. December and January bring frozen interior lines during cold snaps, and the pipes that split during a freeze usually announce themselves during the thaw, not the freeze. Spring runoff and the wet weeks of April and May bring sump pumps that sat idle all winter and do not start. Summer brings main-line breaks in dry clay soil and the sewer backups that follow a hard afternoon downpour. Autumn is the quiet window, which is when a camera inspection or a heater replacement costs the least in waiting time.
Before you call anyone
Know where your main shutoff is, and check that the handle actually turns. In most metro houses it is on the street-side wall of the basement or in a crawlspace near the front of the house. Finding it during a leak is a much worse experience than finding it now.
Metro address, no idea which suburb page? It does not matter. One number covers all of them.
Call the One NumberCommunities in Denver Metro
Every community below is covered by the same phone line. Response times vary with the weather and with how far out of town you are — a call from central Denver and a call from Strasburg are not the same drive.
- Denver
- Aurora
- Arvada
- Westminster
- Castle Rock
- Broomfield
- Littleton
- Brighton
- Englewood
- Wheat Ridge
- Golden
- Lone Tree
- Evergreen
- Bennett
- Strasburg
- Byers
- Indian Hills
- Watkins
- Kittredge
- Conifer
- Franktown
- Morrison
- Idledale
- Louviers
- Larkspur
- Sedalia
- Commerce City
- Dupont
- Eastlake
- Henderson
- Parker
- Thornton
Denver metro
Metro questions we get asked most
In the built-up parts of the metro — Denver, Aurora, Lakewood-adjacent Jefferson County, Westminster, Thornton — same-day is normal and a few hours is common for anything urgent. Out on the eastern edge around Byers, Strasburg and Watkins, or up in the foothills, add drive time and expect a window rather than a time. During a metro-wide cold snap every plumber is busy at once, and the honest answer that day may be a next-morning slot.
It points at the main lateral rather than a branch, because the floor drain is the lowest opening in the system and the first place a backed-up main shows itself. Stop putting water into the house — no laundry, no showers, no dishwasher — and get a camera down the line before anyone quotes a repair. In older metro neighbourhoods with mature trees, root intrusion at a clay joint is the single most common cause.
Expansive clay soils. Much of the metro sits on soils that swell when wet and shrink when dry, which puts slow, repeated movement into anything buried in or under concrete. Add freeze-thaw cycling at the frost line and high static pressure in some districts, and joints that would last decades elsewhere fail sooner. The usual signs are a warm patch on the floor, the sound of water with everything off, and a bill that climbed without a change in habits.
It is worth asking about if you have a finished basement with fixtures below street level, or if the street has a history of surcharging during heavy rain. A backwater valve is a one-way gate on the lateral that keeps the public main from pushing back into the house. It is not a substitute for clearing a root-filled line, and it does need to be accessible for inspection, so placement matters.
It varies a lot by supplier and even by neighbourhood, and it shows up as scale rather than as anything dramatic. The practical effect is on water heaters and fixtures: sediment in the tank bottom, shortened element life on electric units, and aerators that clog. Flushing the heater annually does more good than most treatment purchases, and a water test costs very little before you spend on softening.
Usually, but access is the deciding factor rather than distance. Steep unplowed driveways, gates and long private roads all affect whether a service truck can reach the house, and some contractors will ask you to meet them at the bottom. Say up front if the drive is unplowed or if chains are needed, because it changes who takes the call.
One number for the whole metro
Denver, Aurora, Arvada, Littleton, Westminster, Parker, Castle Rock and every community in between.
(833) 621-2904 — answered 24/7, statewide.