How To Find A Water Leak

If you’ve noticed that your water bill is higher than expected, but it seems like your water usage hasn’t changed, then you likely leak somewhere on your property. Finding and fixing leaks can save you money and is also a great way to reduce water waste. With our tips, you’ll be a water leak detection expert in no time at all.

Determine If The Leak Is Inside Or Outside Your House

Your first step should be determining if the leak is between your water meter and your house or somewhere else inside your home.

  • Start by shutting off the water supply to your home. The valve is usually located outside, right next to the wall of your home.
  • Locate your meter head. If you can’t find it, try digging around some with your hands as your meter head can get covered by dirt or grass. Once you find it, and you’re sure that the water supply to the house is turned off, watch the meter and see if it is still turning. If it’s not converting, then the leak is inside the house, and you can move on to one of the other sections of this page. If the meter is still turning, there is a leak somewhere between the house and the meter, or the shutoff valve to your home is leaking, which is pretty standard with old valves.
  • Walk the route that the water line takes from your meter to your house and keep an eye out for signs of a leak, such as soft ground, muddy areas, or grass that seems to be growing much faster than others. If you find anything like this, you’ve found your leak.

Look For Dark Spots On Your Ceiling

Suppose there are areas of your ceiling that are darker than the rest. In that case, it could be a sign that bathroom faucets or toilets on the second floor of your home are leaking and seeping into the floor, which will stain the ceiling on the first floor. Your first move should measure how far out your home’s wall is from the stain’s center. Stains on the ceiling are usually pretty close to the source of the leak, and knowing how far out from the wall the leak is can help you determine where the source is when you investigate the second floor.

Once you have your measurement, go upstairs and measure out from the same wall you did on the first floor and try to determine what drain or water line is closest. If your toilet is nearest, check the water supply line to the toilet and the shutoff valve if your toilet has one. If a bathroom sink is closest, check the supply lines in the cabinet underneath the sink as well as the drain pipes. Valves on supply lines occasionally fail, and sometimes the solution is as easy as changing the valve.

Check Irrigation Valves In Your Garden For Leaks

If you have a sprinkler system, walk the route the lines would take and look for overly wet or muddy areas. Muddy areas could indicate that a pipe in the sprinkler system has cracked from age or burst from freezing and is dumping water. Check hose bibs as well, and replace them if they are leaking. Even minor leaks will add up quickly for the month and can cause significant rises in your water bill. Check out this drip calculator for an idea of how much water a leaky faucet can waste daily.

Check For Areas Of Your Floor That Are Hotter Or Colder Than The Rest

If you’ve noticed that areas of your flooring feel warmer or colder compared to the rest of the flooring in the room, then your home could have a slab leak. Slab leaks should be dealt with as soon as possible as they can cause severe damage to your foundation and, if left unattended, can undermine your home. These leaks are much harder to pinpoint, but keeping an eye out for temperature differences on the floor can help plumbers know where to look first.

Suppose you suspect you have a slab leak. In that case, we recommend contacting a professional plumber to help locate and fix the leak. Finding it on your own without specialized equipment would require tearing up flooring, breaking through your foundation randomly, and hoping you have the right spot.

Service Request

24 hour emergency service

Military, Fire, Police & Seniors
10% Discount

Discount applies to billable labor only. Work order must be less than $500.00 to be eligible. Cannot be combined with other discounts or proposed signed contract projects.

Service Area

Diamondback Plumbing is dedicated to providing exceptional plumbing services to a vast region beyond Phoenix. Whether you’re based in Tempe, Scottsdale, Glendale, or any of the surrounding locations, our seasoned professionals stand ready to meet your residential or commercial needs.

Schedule Service