Leak detection is the finding step, not the fixing step. The goal is to pinpoint exactly where water is escaping so the repair is a small, targeted opening instead of a guessing game across a wall or a slab. That distinction saves the drywall, the tile and the concrete you would otherwise cut through looking for it.
In Arvada the usual suspects are a supply line in an exterior wall that split over winter, a slab line moved by expansive soil, an irrigation valve that never fully closes, or a toilet or water heater leaking quietly into a cabinet or a pan. Each leaves a different signature, and each is found a different way.
How a hidden leak gets pinpointed without demolition
The first read is the meter. With every fixture off, a meter that keeps creeping confirms a live leak somewhere on the pressurized side. From there we isolate: pressure-testing sections of the system tells us whether the loss is on the hot line, the cold line, or outside the building envelope entirely.
Once the section is known, acoustic listening equipment picks up the specific hiss of pressurized water escaping, and on a slab that sound is traced to a point. Thermal imaging adds a second read, showing the cool track of water behind drywall or the warm path of a hot-water slab leak. Two methods agreeing is what lets us mark an X and open one small area.
| Sign you notice | Likely source | How we confirm |
|---|---|---|
| Bill up, no habit change | Live pressurized leak | Meter test with all fixtures off |
| Warm floor spot | Hot-water slab line | Thermal imaging plus acoustic |
| Green lawn patch in dry weather | Irrigation or service line | Pressure isolation outdoors |
| Musty smell, stained ceiling | Drain or supply in a cavity | Moisture meter and camera |
The clues that a leak is already costing you
A water bill that climbs with no change in habits is the clearest sign, and it is usually the first one homeowners notice. A warm spot on a basement or ground floor, the sound of running water with everything off, a musty smell in a finished room, or a section of lawn that stays green in August all point the same direction.
Catching it early matters more here than in a milder climate. Water tracking along a foundation on expansive Front Range clay keeps that soil swollen year round, and constant moisture against footings is its own slow problem on top of the water you are paying for.
Soft water changes what we look for first
Arvada water runs soft to moderately hard, around five grains per gallon from the Arvada and Ralston treatment plants. That matters for detection because scale-driven pinhole leaks, common in hard-water towns, are less of a story here. The leaks we find more often are mechanical: freeze splits, movement at fittings, worn valves and failed hose bibs.
So when we detect a leak in an Arvada home, we are usually looking for a stressed joint or a cold-damaged section rather than a corroded run of pipe. Knowing that shapes where we listen first and keeps the search short.
Leak Detection: related work and areas
Leak Detection: common questions
Can you find a leak without cutting into my walls?
That is the whole point of leak detection. Acoustic listening, pressure isolation and thermal imaging locate the source first, so when an opening is finally made it is small and in the right place. The alternative, opening drywall until water appears, is exactly what this service exists to avoid.
My water bill jumped but I see no water anywhere. Is that a leak?
Often yes. A silent leak inside a wall, under a slab, or on the outdoor service line will not show a puddle but will show on the meter. Turn every fixture off and watch the meter: if it keeps moving, water is escaping somewhere, and detection finds where.
How much does leak detection cost?
It is priced as a location service, separate from any repair. A straightforward meter-and-acoustic locate is at the low end, while a leak that needs pressure isolation across multiple lines or thermal imaging on a slab takes longer and costs more. You get the location and a repair scope before any repair work starts.
Is a running-water sound with everything off always a leak?
Usually. With no fixtures, appliances or irrigation running, a persistent hiss or trickle in the walls means water is moving where it should not be. It can also be a toilet flapper leaking into the bowl, which we rule out quickly before chasing anything inside a wall.
Are you licensed to do this work in Colorado?
Yes. Detection is performed by licensed, insured Colorado plumbers using calibrated equipment, and we can provide license details on request. Finding the leak accurately is what keeps the repair small, so we treat the locate as its own careful step.
Need leak detection in Arvada?
Call a licensed local plumber who works Arvada every day. No forms, no callback queue.