Key Takeaway
The meter test settles it in two hours: shut off every fixture, note the meter reading and the leak indicator, wait two hours without using water, then read it again. Movement means water is escaping somewhere. Oregon's wet season hides the usual outdoor clues, so a leak that would be obvious in a dry climate can run all winter here unnoticed. Check the water bill trend, listen in a silent house, and look for warm floor spots and musty smells. Call SKS Plumbing at (503) 319-9348 for electronic leak detection before opening any wall.
If you suspect a leak somewhere in your house but cannot see it, the water meter will tell you within two hours — and it will tell you before any amount of looking around will.
Hidden leaks are the ones that cost real money, because they run continuously and nothing about them demands attention. A dripping tap gets fixed because it is annoying. A supply line weeping inside a wall cavity is silent, invisible, and often only discovered when the drywall stains or the bill arrives.
Start With the Meter Test
This costs nothing and settles the central question.
- 1Shut off everything that uses water. Taps, toilets, dishwasher, washing machine, ice maker, irrigation zones. Anything on a timer needs to be off, not just idle.
- 2Read the meter and note the leak indicator. Most meters have a small dial, triangle or star that rotates whenever water is moving, even slowly. Write down the full reading.
- 3Leave it two hours. Do not flush a toilet or wash your hands.
- 4Read it again.
If the number moved, water left your system while nothing was running. That is a leak, and the only remaining questions are where and how bad.
If the leak indicator was visibly turning at step 2, you do not need to wait the two hours. That is an active leak of some size and it is worth calling about the same day.
What Oregon's Climate Hides
This is the part that catches people out locally.
Most general advice about finding leaks assumes you can read the ground outside. A leaking service line is supposed to announce itself with an unusually green patch of lawn, a soft spot underfoot, or water surfacing on the driveway. In a dry summer climate, those signs are obvious.
From October through spring in Washington County, the ground is saturated anyway. Everything is green. Everything is soft. A service line leak that would be conspicuous in Arizona can run here all winter without producing a single visible clue outdoors.
Two practical consequences. First, indoor signs and the meter test matter more here than the outdoor ones. Second, late summer and early autumn are the best time of year to spot an exterior leak locally — during the short window when the ground dries out enough for an anomaly to stand out. If you have suspected something for a while, now is the time to look, not January.
The Indoor Signs Worth Noticing
A bill that stepped up and stayed there. Compare against the same month a year ago rather than last month; irrigation makes month-to-month comparisons useless. A continuous leak produces a new plateau rather than a spike.
Sound in a silent house. Stand still with everything off. A faint hiss, trickle or intermittent refill sound means water is moving somewhere.
Warm spots on the floor. A hot water line leaking under a slab warms the surface above it. You usually notice barefoot.
Musty smell in one area. Persistent damp inside a wall or under a cabinet smells before it shows. A cupboard or a room that smells earthy after the house has been closed up is worth investigating.
Staining or bubbling. Discoloured drywall, paint that blisters, a ceiling patch that darkens slightly, or baseboard that swells and lifts.
Pressure that fell off gradually across the whole house, rather than at one fixture.
Running toilets. Worth checking before assuming anything more serious. Put a few drops of food colouring in the tank, wait fifteen minutes without flushing, and check the bowl. Colour in the bowl means the flapper is passing water — a very common cause of an inflated bill and an easy fix.
How Much a Hidden Leak Actually Costs
Leaks feel minor because the individual drip is minor. The arithmetic is what makes them worth chasing.
The EPA's WaterSense program reports that the average household's leaks can account for more than 9,300 gallons of water wasted every year, and that nine percent of homes have leaks wasting 50 gallons or more per day. Across the country, household leaks together waste nearly 1 trillion gallons annually.
The water charge is only part of it. A leak inside a wall or under a floor is also causing damage the whole time it runs — and most homeowners policies distinguish sharply between sudden accidental damage and long-term seepage. The longer a hidden leak goes unfound, the more likely the resulting repair sits in the part of the policy that does not pay.
What Not to Do
Do not start opening walls. The instinct to find it yourself is understandable and it is expensive. Acoustic leak detection equipment hears water escaping under pressure through drywall, concrete and subfloor, so the leak can be located before anything is opened. One small access hole in the right place beats four in the wrong ones.
Do not dismiss it because you cannot see anything. The whole category is defined by being invisible. The meter is the evidence, not your eyes.
Do not wait for the wet season to pass. A leak does not pause, and around here winter removes the outdoor clues that would help locate it.
When to Call
Call if the meter moved during the two-hour test, if the bill has stepped up without a change in habits, or if you have a damp smell, a stain or a warm floor patch you cannot explain.
We handle leak detection and repair throughout Hillsboro, Beaverton, Tigard and the surrounding Washington County communities, locating leaks electronically before anything gets opened up. Where the leak is on the incoming service line rather than inside the house, that becomes water main line repair, and where a house has started producing repeated pinhole failures in the same aging system, whole home repiping is usually the cheaper answer than chasing them one at a time.
Call (503) 319-9348 with your meter test result. Knowing whether the dial moved tells us a great deal before we arrive.
Frequently Asked Questions
Turn off every tap, toilet, appliance and irrigation zone, then write down the meter reading including the position of the small leak indicator dial. Do not use any water for two hours, then read it again. Any change means water left the system while nothing was running. If the leak indicator is spinning outright, the leak is substantial and worth a same-day call.
Because the ground is wet anyway for much of the year. In a dry climate, a leaking service line shows itself as a green patch or a soft spot in the yard. Here, from October through spring, everything is already saturated, so that clue disappears. Indoor signs and the meter test carry more weight locally than what you can see outside.
Yes, and it is the most common way people find out. A leak runs continuously at line pressure, so the bill steps up and then stays high rather than spiking once. Compare the current bill to the same month last year rather than to last month, since seasonal irrigation makes month-to-month comparisons misleading.
Run the meter test, because it tells you whether there is a leak at all and takes only your time. Do not open walls, ceilings or flooring looking for it. Electronic leak detection locates the point of escape acoustically so that one small area gets opened rather than several exploratory ones.
Policies commonly cover sudden accidental damage but exclude damage from a leak that has been seeping for a long period, which is exactly what a hidden leak becomes. That gap is the practical reason to act on a suspicion early rather than monitoring it for a season. Check your own policy wording, as terms vary.