“A broken pipe turned our garden into a small lake, and we were desperate for help. Romero Bros Plumbing showed up right away. Vicente’s expertise, professionalism, and fair pricing made a stressful situation so much easier. Huge thanks to Romero, definitely the hero of the day.”
Leak Detection Services
Plumbing Leak
Detection
Water stains, a higher water bill, or the sound of water you cannot find? Romero Bros Plumbing helps locate hidden plumbing leaks and points you toward the right repair, throughout the San Gabriel Valley and surrounding communities.
Licensed California C-36 Contractor | License #1155128

Water actively leaking?
If you can do so safely, shut off the water at the fixture or the main valve and keep clear of electrical items near the water. Then call (626) 826-7743. If you smell gas, leave the area and call your gas utility or 911.
Know the warning signs
Signs You May Have
A Hidden Leak
Water stains or moisture
Stains, damp patches, or peeling paint on walls, ceilings, or floors can be a sign that water is escaping from a pipe.
Unexpected water usage
A water bill that rises with no change in how you use water is worth investigating.
The sound of running water
Hearing water when every fixture is off can point to a leak somewhere in the plumbing.
Dampness under fixtures
Moisture in a cabinet under a sink or around a fixture can come from a leaking connection or drain.
Visible supply-line leaks
Drips or moisture on an exposed supply line or fitting are a clear sign something needs attention.
Musty odors
A musty smell near a wall, floor, or cabinet can come from moisture that has been sitting there.
Think you have a leak? Call us or send a service request and Romero Bros will take a look.
Two different steps
Finding The Leak Is Not
The Same As Fixing It
Identifying The Likely Source
Water can travel before it shows up, so damage is not always right where the leak is. The first step is working out where the water is coming from.
Deciding On The Repair
Once the likely source is clear, the right repair depends on what is leaking and what condition the surrounding plumbing is in. Romero Bros explains your options so you can decide.
A leak that is actively running, or that is damaging walls, floors, or ceilings, should be looked at promptly. If you are not sure how urgent your situation is, call and describe it.
What we handle
Leak Detection
For Your Home
Find the leak, understand the problem, and get a clear path toward the right repair.
Hidden Plumbing Leaks
Looking into leaks you cannot see, including signs of moisture and unexplained water use.
Leaks Behind Walls & Under Fixtures
Checking the plumbing at and around fixtures where moisture is showing up.
Visible Supply-Line Leaks
Looking at supply lines and connections that are dripping or damp.
Locating The Source First
Working out where the water is coming from before recommending a repair.
Clear Repair Options
Your options explained once the source is found, so the repair fits the problem.
Plumbing Repairs
Romero Bros also handles plumbing repairs, such as water line and under-sink repairs, once the source is known.
Call (626) 826-7743 to talk through what you are seeing.
Call (626) 826-7743Plumbing in action
Real Plumbing Work
From Real Jobs
These are real Romero Bros plumbing photos. They show plumbing inspection and repair work, and are not examples of completed leak detection jobs.
See all recent workWhy Romero Bros
Why Choose
Romero Bros Plumbing
Built on Quality, Backed by Experience.
Licensed California C-36 contractor
License #1155128.
Owner-operated
You work directly with the people doing the job.
Source first, repair second
Recommendations that come from finding out what is actually leaking.
Local to the San Gabriel Valley
Serving homeowners across the San Gabriel Valley and surrounding communities.
Clear communication
Your options explained so you can make the decision.
Customer reviews
What Our Customers Say
“We have utilized Romero Bros plumbing for many services small jobs and very large jobs as well, including repiping. They have always been very detailed, efficient and reasonable. Have never had an issue with the work. They thoroughly explain everything and stand by their work 😀 they have also been very organized and clean up after their work.. Highly recommend.”
Verbatim reviews from Google. Read more reviews on Google
Where we work
Proudly Serving The
San Gabriel Valley
& Surrounding Communities
Romero Bros Plumbing helps homeowners throughout the San Gabriel Valley and surrounding communities find and fix plumbing leaks.
San Gabriel Valley
- San Gabriel
- San Marino
- Pasadena
- Rosemead
- El Monte
- South El Monte
- Baldwin Park
- Irwindale
- Azusa
- Duarte
- Glendora
- Covina
- West Covina
- La Puente
East Toward Pomona & Ontario
- Pomona
- La Verne
- Claremont
- Diamond Bar
- Montclair
- Upland
- Ontario
- Chino
Nearby Communities
- Whittier
- Hacienda Heights
- Rowland Heights
- Los Angeles
Questions
Leak Detection
Questions
How do I know if I have a hidden leak?
Common signs include water stains or damp spots, a water bill that rises without a change in use, the sound of running water when everything is off, and moisture under fixtures. None of these confirm a leak on their own, so an inspection helps.
My water bill went up. Could it be a leak?
It can be. A higher bill with no change in how you use water is one of the signs of a leak, though other things can also cause it. Call and describe what you are seeing.
Is finding a leak the same as repairing it?
No. Finding the likely source is one step, and deciding on the right repair is another. Romero Bros works out where the water is coming from first, then explains your repair options.
What should I do right now if a pipe is leaking?
If you can do so safely, shut off the water at the fixture or the main valve and keep clear of electrical items near the water. Then call a plumber. If you smell gas, leave the area and call your gas utility or 911.
Can Romero Bros repair the leak once it is found?
Romero Bros handles plumbing repairs, such as water line and under-sink repairs, and can talk through the right fix once the source of the leak is known.
Does every leak cause visible damage?
No. Some leaks stay hidden, and damage does not always show up right where the water is escaping. That is why moisture, odors, or unexplained water use are worth checking out.
More from Romero Bros
Other Plumbing Services
- Water Line Repair & ReplacementDamaged, leaking, or aging water lines.Learn More
- Drain CleaningClogged sinks, showers, and recurring drain problems.Learn More
- Water Heater Repair & ReplacementGas, electric, and tankless water heaters.Learn More
- Gas Line Repair & ReplacementLicensed gas line work with attention to code.Learn More
Leak help
Think You Have
A Plumbing Leak?
Tell us what you are seeing and your request goes straight to Romero Bros Plumbing. If water is actively leaking, please call.
Call (626) 826-7743