If your Westminster meter moves with every fixture off, or part of a floor turns warm or damp, a supply line under the concrete may be leaking. The city owns the line only as far as your meter pit; from the meter into the home is the customer's. Call the number on this page to be connected with a local plumber in Westminster.

Westminster's housing spans several decades: census survey figures put the median home at 1987, with about 33.7% built before 1980. The city's service line inventory found copper as the main material and no lead residential lines, though some older homes may have galvanized steel. Underneath a slab, the pipe is usually copper in older houses and often plastic in newer ones. Either can leak: copper tends to wear through where it rubs against gravel or concrete, while plastic more often fails at a fitting. Westminster draws all its water from Standley Lake and reports moderate hardness of about 112 to 149 ppm, with no health-based violations, so the supply is not a known driver of these failures.
What to do right now
- Confirm the leak. Turn off every faucet, appliance and the sprinklers, read the meter, wait an hour, then read it again.
- Narrow it to hot or cold. Close the cold inlet valve on the water heater. If the meter stops, the leak is likely on the hot side.
- Limit damage. If water is surfacing, shut off the main and move rugs and furniture off the wet area.
- Write down what you saw. Warm spots, damp baseboards and when the bill jumped all help the plumber.
- Get it located properly. Pressure testing and acoustic listening should come before anyone cuts concrete.
Symptoms and what they usually mean
| Symptom | Likely cause |
|---|---|
| Warm stripe on tile or laminate | Hot water line leaking under that area |
| Meter moves, floors feel normal | Cold-side leak, or a leak on the line from the meter pit |
| Water heater running more than usual | Hot water escaping somewhere in the system |
| Damp carpet edge with no fixture nearby | Water wicking up through the slab |
| Low pressure at one bathroom | Leak on the branch feeding that room |
Factors that shape the bill
- Time to isolate and locate the leak before any concrete is opened
- Whether a spot repair or a reroute through walls makes more sense
- Flooring type over the leak and the patching that follows
- Drying and repair of any drywall or cabinets that got wet
- A City of Westminster permit, which is required to modify plumbing systems and for underground water line repair
Slab Leak Repair questions in Westminster
Who pays to fix a leak between the meter and the house?
Does slab leak work need a permit here?
Why does one patch of my floor feel warm?
Should I call the water utility or a plumber first?
More plumbing services in Westminster
Slab Leak Repair nearby
Helpful guides
Sources
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