Unexpected Water Bill? Signs of a Slab Leak
- Patriot Plumbing Service, Inc.
- Apr 16
- 4 min read
Updated: Apr 16
It could be a hidden plumbing leak — and your slab might be the culprit.
Serving Killeen · Temple · Copperas Cove · surrounding Central Texas communities
You open your water bill and do a double-take. Nothing has changed - same household, same routine - but the number is noticeably higher. That's often the first clue that something is leaking somewhere you can't see.
Hidden plumbing leaks, especially slab leaks, can waste hundreds of gallons before you ever spot visible damage. The good news? Knowing the warning signs early can save you a lot of money and headache down the road.
What homeowners are searching for:
"Why is my water bill suddenly so high?"
"What are the signs of a slab leak?"
"Do I need a licensed plumber for leak detection?"
This article answers all three — keep reading.
Signs of a hidden plumbing leak signs of a slab leak
Not all leaks drip visibly from a faucet. Many hide behind walls, beneath flooring, or under your home's concrete slab. Here are the most common things to watch for:
Your water bill spikes for no clear reason
If usage hasn't changed but the bill has, water is escaping somewhere. Even a slow drip adds up to hundreds of gallons a month.
Warm or hot spots on your floor
A leaking hot water line under your slab can warm the floor above it - a classic sign of a slab leak in Central Texas homes.
You hear water running when nothing's on
A hissing or rushing sound inside your walls when all faucets are off is a strong indicator of an active leak.
Damp patches, staining, or musty smells
Moisture trapped inside walls or under floors encourages mold and mildew. Soft spots in drywall or a persistent musty odor deserve attention.
Your water meter won't stop moving
Turn off all water in your home and watch the meter. If it keeps spinning, water is actively escaping somewhere in your system.
Why slab leaks are especially common in our area
Central Texas soil is notoriously shifty. The clay-heavy ground expands and contracts with moisture and temperature changes, which puts real stress on the pipes running beneath your home's foundation. Combine that with older plumbing systems in many Killeen, Temple, and Copperas Cove neighborhoods, and you have a recipe for slab leaks that can go undetected for weeks or months.
Left alone, a slab leak can cause foundation shifting, mold growth inside walls, and serious structural damage — all of which cost far more to fix than the leak itself. Early slab leak detection is the key.
Quick Homeowner Tip:
Before calling a plumber, try this simple check:
Turn off all water inside and outside your home.
Write down your water meter reading.
Wait 8–10 hours without using any water (overnight works great).
Check the meter again in the morning.
If the number changed, you very likely have a leak somewhere in your plumbing system.
How professional leak detection works
Finding a hidden leak — especially a slab leak — takes more than a visual inspection. Many licensed plumbers can usually identify using years of expertise. They are able to use isolation techniques to pinpoint the problem area.
Some other tools and techniques include:
Acoustic detection equipment listens for the distinct sound signature of water escaping under pressure.
Thermal imaging cameras identify temperature differences caused by leaking water lines beneath floors or behind walls.
Hydrostatic testing reveals drops in system pressure that point to a break , somewhere within the waterline.
Once the location is identified, your plumber can recommend the most targeted fix , minimizing disruption to your home and your wallet.
When to call a licensed plumber
If you've noticed any of the warning signs above - a high water bill, warm floors, suspicious sounds, damp spots, or a spinning meter , it's worth having your system inspected sooner rather than later. The longer a hidden leak runs, the more damage it does.
Don't wait until you see visible water damage. At that point, the leak has usually been active for a while. A quick call to a licensed plumber for slab leak detection can catch problems before they turn into major repairs.
Schedule Today !
Killeen Area 254-246-7913
Temple Area 254-330-8550
Frequently Asked Questions :
What should I do if my water meter keeps moving with all water off?
Call a plumber right away. A spinning meter when no water is in use almost always means there is an active leak in your plumbing system.
How do I know if I have a slab leak in Killeen?
Look for warm spots on your floor, a rising water bill, or the sound of running water when nothing is on. A licensed plumber can confirm it quickly using specialized tools and years of expertise.
Does Patriot Plumbing offer free onsite estimates?
Yes! We provide free onsite estimates for all leak detection and plumbing services. We'll come out, take a look, and give you a clear picture of what's going on - no charge, no obligation.
How soon can you come out?
We serve Killeen, Temple, Copperas Cove, and the surrounding area and aim to get to you as quickly as possible. Call us at 254-246-7913 for the greater Killeen area and 254-330-8550 for Temple & Belton areas - we'll get you scheduled often the same day or next day.
