Professional Water Leak Detection Services
A hidden water leak, especially a slab leak, can wreak havoc on your property. If you suspect that you may have a leak somewhere on your property, it’s important that you have a professional conduct leak detection services right away so that you can stop the leak and prevent any future damage.
If you think you have a hidden water leak on your property, call Simply Green Plumbing, Sewer & Rooter at (408) 358-6446 for Los Gatos leak detection services today!
Signs You Have A Hidden Water Leak
Because pipes and sewer lines are typically hidden away out of sight (underground, behind walls and ceilings, under floors, in crawlspaces, etc.), it can be difficult to spot a leak when one occurs. However, there are some signs you can look out for that indicate a problem.
Common Signs Of Water Leaks Include:
- Water stains on ceilings and walls
- Peeling paint or wallpaper
- Mold or mildew growth
- Unexplained increases in water bills
- Buckled or warped flooring
- Lush patches of lawn
- A musty or unpleasant odor
- Unexplained changes on the water meter
- Cracks in the foundation
- Damage to pavers or driveway
- Soggy areas of carpeting or yard
Expert Water Leak & Slab Leak Detection
These and other signs could indicate that you have a hidden water leak somewhere on your property. At Simply Green Plumbing, Sewer & Rooter, we use state-of-the-art tools and cutting-edge technology in order to pinpoint hidden leaks without causing excessive damage to your property. Our plumbing technicians are also adept at locating slab leaks, which occur in the foundation of your home and are especially destructive if left unaddressed.
Why Choose Our Team For Your Leak Detection Needs?
Simply Green Plumbing, Sewer & Rooter offers trustworthy leak detection services in Los Gatos, Cupertino, and the surrounding areas, backed by over 30 years of experience and a 100% customer satisfaction guarantee. We serve homeowners throughout the area with prompt, professional service.
Contact us online or by phone at (408) 358-6446 to make an appointment for leak detection services in Los Gatos, Saratoga, Monte Sereno, Campbell, Cupertino, San Jose, Willow Glen, or the surrounding areas.
Customer Reviews
I called Simply Green Plumbing with both my bathrooms backing up in the shower. I spoke with Liz in the office who was very professional, polite , and informative giving me all the details necessary to...
Justin K.
Simply Green came out today to unclog my mainline!! Worst morning ever until I called them. The people on the phone are awesome,really helpful and consistent. The technician was SO professional and...
Liz M.
We had simply green came by to fix up our washer drainage clogged up problem. We are very pleased with Michael and Ross' service. They both are very courteous. They were on-time and patiently answered...
Randy F.
trusted & reliable professionals
You Deserve Only the Best
Emergency Services
No extra charges for emergency services!
Professional Team
Our technicians are certified, clean and uniformed.
Same-Day Service
There for you when you need us most.
Commitment to Service
We have been providing quality services since 1988.
Involved in the Community
We care about our local community and serving you and your family.
100% Satisfaction Guaranteed
We are not satisfied until you are!
Coupons & Specials
$50 Off
Water Heater Installation
Valid through Dec 31, 2030
10% Off
Water Heater Repair
Cannot be combined with other specials.
Valid through Dec 31, 2030
$75 Off
Hydro Jetting
Cannot be combined with other coupons or specials.
Valid from Jan 1, 2019
The Meter Test You Can Do Today
Suspect a leak but not sure? Turn off every fixture and appliance that uses water, then watch the small flow indicator on your water meter. If it still moves, water is going somewhere. Shut the valve at the house and check again: still moving means the leak is in the service line or irrigation, stopped means it is inside the house. That one distinction narrows the search dramatically, and it is exactly where our water line and leak crews start.
Slab Leaks in South Bay Homes
Thousands of local homes were built on slab foundations with copper supply lines running underneath, including the Eichler neighborhoods of Cupertino. When a hot line under the slab starts leaking, the signs are warm spots on the floor, the sound of running water with everything off, or a water heater that never seems to rest. We locate the line precisely, then talk through repair at the spot versus rerouting the line overhead, which often makes more sense on a system old enough to fail twice.
Old Galvanized and the Leak That Moves
Galvanized supply pipe fails from the inside out, and the first pinhole is rarely the last. If your home still runs on original galvanized, patching leak by leak becomes a subscription. At some point the honest recommendation shifts from repair to repiping, and we will tell you plainly when your system reaches that point. Our post on pre-1990 local homes explains how to tell what your pipes are made of.
Leak Detection Across the Area
We locate and repair leaks throughout Los Gatos, Saratoga, Monte Sereno, Campbell, and the hills, where long service runs make precise locating matter even more. The visit starts with listening equipment and pressure readings, and ends with a small, accurate opening rather than exploratory holes.

From our Google reviews
“Fantastic service from Russell and his crew. We had an underground leak come in from the city supply and they were onsite within a few hours. … The job was completed promptly and exceeded expectations. Highly recommend.”
Mike Louer · 5-star Google review
“Had a leak behind our washing machine and called Simply Green Plumbing in a bit of a panic. They came out fast and got the whole thing fixed without any hassle. The tech was friendly and clearly knew what he was doing. …”
Jacob Paquette · 5-star Google review
Frequently Asked Questions
How do you find a leak without tearing open walls?
We use acoustic listening equipment, pressure testing, and camera inspection to isolate leaks behind walls, under slabs, and underground, so any opening we make is small and in the right place the first time.
What are signs of a hidden water leak?
A water bill that climbs with no change in use, the sound of running water when everything is off, warm spots on floors, musty odors, or a water meter that moves when no fixtures are running. Any of these is worth a leak check before damage spreads.
Do you repair the leak as well as find it?
Yes. We are a full-service, licensed plumbing company (CA License 943556), so the same team that locates your leak can repair it, from a pinhole in a copper line to an underground service line replacement.
Is a slab leak an emergency?
It should be treated urgently. Water under a foundation can damage the slab and flooring, and moisture invites mold. If you suspect a slab leak, shut off the water at the main and call us. We answer emergency calls 24/7.
