Leak detection
What this service covers
A hidden leak wastes water quietly for months and then shows up as a warped floorboard or a shocking bill. Our job is to find it with as little demolition as possible. We isolate the system, watch the meter, then use acoustic listening equipment, pressure testing and thermal scanning to narrow the location down to a specific spot rather than a general area.
Precision saves money twice: less opening up to reach the pipe, and less patching afterward. It also tells us whether you are dealing with a single failed fitting or a supply system that has started failing systematically and is a repipe conversation.
Detection methods we use
- Meter isolation testing to confirm an active leak
- Acoustic and ultrasonic listening equipment
- Line pressure testing by zone
- Thermal imaging on slab and wall leaks
- Irrigation and hose bib leak isolation
- Fixture and toilet flapper loss testing
- Gas leak detection and shut-off
- Written findings with the repair options priced flat
Our process
How we handle leak detection
Confirm
We verify there is an active leak with a meter test rather than starting from assumption.
Isolate
The system is divided into zones so we can tell hot from cold, interior from irrigation.
Pinpoint
Acoustic and thermal equipment narrows the leak to a specific location, which we mark.
Repair or refer
We quote the repair flat, and if remediation of water damage is needed we tell you plainly.
Common questions
Leak Detection FAQs
Q. How do you find a leak without breaking anything?
Acoustic listening, zone pressure testing and thermal imaging locate the leak through the finish surface. We only open the area we have marked.
Q. How much water can a hidden leak waste?
Enough to show up clearly on a bill. Any leak that keeps a slab damp is also a mold and flooring risk, which usually costs more than the plumbing repair.
Q. Can you tell if it is a slab leak?
Yes — that is a common outcome. Slab leaks have a distinct acoustic signature and often a warm spot when the hot line is involved.
Q. Do you detect gas leaks too?
We do. If you smell gas, leave the building first and call us from outside — we treat that as an emergency and respond 24/7.
Areas we serve
Where we handle leak detection
We work out of San Marcos and cover North County San Diego from there. Pick your city for the local details that change how this job goes.
San Marcos
Slab-on-grade homes are common here, and a warm floor with a moving meter is a familiar combination.
Vista
Irrigation and hose-bib leaks are frequent culprits before anything inside the home is opened.
Carlsbad
Multi-level and remodeled homes need careful isolation so we open the smallest possible area.
Oceanside
Rental and multi-unit properties benefit from locating first, then scheduling one clean repair.
Escondido
In homes with galvanized or older copper supply lines, leaks often show up at joints and hidden runs.
Encinitas
Custom finishes raise the cost of guessing, so pinpointing before cutting matters most here.
Business information
Swift Flow Plumbing — licensed plumbing in North County San Diego
Based in
San Marcos, CA. We are a mobile, service-area company — our crews come to you, so there is no public storefront to visit.
License
CSLB #1136062 — licensed and insured California plumbing contractor, locally operated out of San Marcos.