Leak Detection Services
Leak Detection Services in San Diego
From slab leaks and hidden pipe leaks to roof, window and sewer problems, 1st Response Leak Detection locates the source of residential and commercial leaks across San Diego County using thermal imaging, moisture detection, pressure testing and camera inspection, so repairs are targeted instead of guessed.
- 24/7 Emergency Service
- 15+ Years Experience
- Licensed Contractor #1063131
- Residential & Commercial
Infrared thermal imaging, non-destructive
Open 24 hours a day, 365 days a year.
Thermal imaging, moisture & camera tools.
Homes, apartments, HOAs and commercial properties.
From Oceanside to Chula Vista.
What We Do
What Is Professional Leak Detection?
Quick answer
Professional leak detection is the process of confirming that a leak exists and pinpointing exactly where it is, whether inside a wall, under a concrete slab, in a roof assembly, in an irrigation line or in a sewer pipe, using diagnostic tools such as infrared thermal imaging, moisture meters, pressure testing and camera inspection. Knowing the exact location lets the repair be targeted instead of opening floors and walls to search.
Plumbing problems are easy to ignore and often go unnoticed until the damage shows. By then, water may have been soaking into drywall, subfloors, insulation or the soil under a foundation for weeks. Hidden leaks are especially serious when they are close to a building’s mechanical systems, and water damage is consistently one of the most common and costly property insurance claims.
1st Response Leak Detection is locally owned and operated in San Diego and has been in the leak detection industry for over 15 years. We find leaks quickly and efficiently, explain what caused them, and tell you how the problem can be fixed in the most effective, affordable and minimally invasive way. You will know the total cost of repair before any repair work begins, with no hidden or extra fees.
Every service below starts with the same goal: confirm the leak, locate it precisely and give you clear findings. Choose the service that matches what you are seeing, or review the common signs of a leak if you are not sure where to start.
Our Services
Leak Detection Services by Problem Area
Every service page explains the warning signs, how we locate that type of leak and what happens next. Start with the area of your property where you are seeing water, stains, odors or a rising bill.
Kitchens, Bathrooms & Equipment
Fixtures, appliances, HVAC equipment and the areas beneath your floors.
Sink supply lines, dishwasher and refrigerator connections and hidden drain leaks under cabinets.
Shower pans, valves, drains and sink plumbing that leak into walls, floors and ceilings below.
Condensate and plumbing-related moisture around HVAC equipment, where mold can take hold.
Moisture, standing water and pipe leaks in the open space beneath raised floors.
Roof, Rain & Building Envelope
Water entering from outside: roofs, windows, balconies, decks, patios and walls.
Ceiling stains and attic moisture traced back to damaged roofing, flashing or penetrations.
Leaks that appear only when it rains, from roofs, gutters, windows or the building exterior.
Failed seals, flashing and caulking around windows that let water into walls and sills.
Mapping where outside water enters a home or building and how far it has spread.
Upper-level balconies that leak into rooms, ceilings or walls below, even after re-sealing.
Waterproofing and drainage problems that let water through a deck and into the structure.
Cracked or poorly waterproofed patios that collect water and push it toward the foundation.
Detection Technology
Non-destructive tools we use to see what is happening behind finished surfaces.
Thermal cameras reveal the temperature pattern water leaves in walls, ceilings and floors.
Infrared scanning finds hidden moisture without cutting into drywall or lifting flooring.
Moisture meters and sensors measure how far water has traveled through building materials.
Sewer & Drain
Camera inspection, odor investigation and repair of leaking sewer lines.
A camera inside the line shows cracks, root intrusion, clogs and leaks without excavation.
Sulfur or sewer smells inside the home traced to dry traps, failed seals or damaged lines.
Repair of leaking or root-damaged sewer lines once the problem has been located.
Commercial & Repair
Leak detection for businesses and managed properties, and repair once the leak is found.
Offices, restaurants, retail, apartments and municipal properties, with minimal disruption.
Targeted repair after the leak is pinpointed, with the total cost explained before work begins.
Match the Symptom to the Service
Not Sure Which Service You Need?
Most calls start with a symptom, not a diagnosis. These are the warning signs we hear about most, and the service that usually finds the cause.
- Water bill keeps risingStart with high water bill detection.
- Warm or damp floorsA common sign for slab leak detection.
- Ceiling stains after rainLook at roof or rain leak detection.
- Water with no clear sourceMystery leak detection traces it back.
- Musty odor or moldMoisture detection maps hidden dampness.
- Soggy lawn or weak sprinklersCheck with irrigation leak detection.
- Sewer smell indoorsSewer odor detection finds the source.
- Burst pipe or active leakCall now for emergency leak detection.
How We Find the Source
Detection Methods Matched to the Problem
No single tool finds every leak. We choose the method based on where the water is, what the property is built from and what the symptoms suggest, then confirm the findings before recommending a repair.
Thermal image of moisture behind a finished surface
Infrared Thermal Imaging
Follows the thermal signature water leaves behind walls, ceilings, floors and building exteriors, and helps confirm whether an area has dried out after water damage.
Pressure Testing & Acoustic Locating
Pressure tests help isolate which line is losing water, and acoustic equipment helps pinpoint where, so slab and underground leaks are located before any repair.
Moisture Mapping
Moisture sensors, thermo-hygrometers and penetrating and non-penetrating meters measure how far water has migrated through materials.
Camera & Borescope Inspection
Sewer cameras and borescopes show the inside of drain lines and wall cavities: the location and nature of a leak, clog or root intrusion.
- No cutting into walls just to find the source
- Findings explained in plain language
- Repair cost before any repair work begins
Residential & Commercial
Leak Detection for Homes and Businesses
The detection methods are the same, but the priorities are different. Homeowners want the leak found with as little damage as possible. Businesses and property managers also need to keep tenants, customers and operations running.
Residential Leak Detection
Single-family homes, condos and townhomes. Whether you have a kitchen faucet leak, a leak in a toilet tank, a poorly sealed washer hook-up or a leak under the slab, we locate it and explain the repair options.
- Slab, wall and ceiling leaks
- Kitchens, bathrooms and water heaters
- Roofs, windows, balconies and patios
- Irrigation and outdoor lines
Commercial & Managed Properties
Multi-unit buildings and commercial spaces have complicated plumbing. We identify issues quickly, help keep downtime low and tell you the total cost of repair before we begin any repair work.
- Office buildings, restaurants and retail
- Apartments, HOAs and multi-unit buildings
- Gas stations and municipal properties
- Water purveyor distribution systems
Why Leaks Happen
What Causes Plumbing Leaks, and Where They Hide
Plumbing leaks take many forms. Some are as simple as a worn part inside a faucet; others are pinhole leaks in a pipe buried under concrete. The smart thing to do is deal with the problem when you first notice it instead of delaying it, because a small leak rarely stays small.
Common causes of plumbing leaks
- Damaged or poor-quality gaskets
- Worn O-rings in ball, cartridge and disc-style faucets
- Worn inlet and outlet seals in disc-style faucets
- Mineral and residue build-up inside fixtures and valves
- Failed ball-socket seals from wear over time
- High water pressure stressing pipes, joints and connections
- Corrosion, friction and expansion in older supply lines, especially under slabs
Where household leaks are most common
- Appliances and their supply lines
- Water heaters and tankless water heaters
- Sump pumps
- Sinks and showers
- HVAC equipment
- Downspouts and gutters
- Patios, balconies and decks
- Windows and exterior walls
Why annual checks matter
The idea of having a leak detection company check your property when nothing looks wrong may sound unusual, but regular inspection is one of the best ways to keep a plumbing system working well. Leaks should never be ignored: left alone, they can lead to mold, rot, foundation and soil problems, damaged finishes and wasted water.
Not sure which service you need? Describe what you are seeing and we will point you in the right direction.
(619) 374-8554Or send a service requestHow It Works
From First Call to Clear Answers
Contact 1st Response
Call (619) 374-8554 any hour, or send a request online. Tell us what you’re seeing.
Diagnose the Property
A trained technician arrives at the planned time and assesses the symptoms, fixtures and affected areas.
Pinpoint the Leak
Thermal imaging, moisture detection, pressure testing or camera inspection locates the source non-destructively.
Explain the Next Step
You get clear findings and the total cost of repair before any repair work begins.
Related Services
When Repair Means Replacing the Pipe
Repeated leaks in aging supply lines can mean repair is no longer the best long-term option. Our repipe services cover homes, apartments, HOAs and commercial buildings.
Also available: apartment repipe and HOA communities repipe.
Service Area
Leak Detection Across San Diego County
Locally owned and operated, we provide every service on this page throughout San Diego County, from coastal neighborhoods and downtown high-rises to North County, East County and South Bay communities.
- Downtown San Diego
- La Jolla
- Carlsbad
- Oceanside
- Encinitas
- Escondido
- Poway
- El Cajon
- Santee
- La Mesa
- Chula Vista
- Coronado
150 neighborhoods and communities listed
FAQs
Leak Detection Services FAQs
Answers to common questions about how our leak detection services work. See all of our leak detection FAQs.
Talk to a leak detection specialist now. We answer 24 hours a day.
(619) 374-8554
What does a leak detection service include?
A technician reviews the symptoms you have noticed, inspects the affected areas and fixtures, and uses the diagnostic methods that fit the situation, such as thermal imaging, moisture mapping, pressure testing or camera inspection, to confirm the leak and locate it. You then receive clear findings and the total cost of any repair before repair work begins.
How do I know which leak detection service I need?
Start with what you are seeing. A rising water bill points to high water bill detection, warm or damp floors often point to a slab leak, and ceiling stains after rain point to a roof or rain leak. If you are not sure, call us and describe the symptoms; we will recommend where to start.
Can you find a leak without opening walls or floors?
In most cases, yes. Infrared thermal imaging, moisture meters, acoustic equipment and camera inspection let us locate wet areas and leaking lines non-destructively, so walls, ceilings, tile and flooring do not have to be opened just to search for the source.
Do you repair leaks as well as find them?
Yes. We offer leak repair and sewer line leak repair, and repipe services when aging pipes keep failing. You will know the total cost of repair before any repair work begins.
Do you provide leak detection for commercial properties?
Yes. We provide commercial leak detection for office buildings, restaurants, retail spaces, gas stations, apartments, HOAs and municipal properties, and leak detection for water purveyors.
Are you available for emergency leaks?
Yes. We are available 24 hours a day, 7 days a week, 365 days a year at (619) 374-8554. If water is actively leaking, turn off the main shutoff valve first and keep away from electrical equipment near the water.
Which areas do you serve?
We serve all of San Diego County, including Downtown San Diego, La Jolla, Carlsbad, Oceanside, Escondido, Chula Vista, El Cajon, Coronado, Poway and Santee. See all service areas.
Are you licensed?
Yes. 1st Response Leak Detection holds California Contractors License #1063131 and has more than 15 years of experience in the leak detection industry.
Think You Have a Leak?
Find the Leak Before It Gets Worse.
Tell us what you are seeing and a leak detection specialist will help you choose the right service. For active leaks, call us any time, day or night.
Where Is Your Leak?
Send a request and we’ll get back to you quickly. For active leaks, please call.
Emergency? Call (619) 374-8554. We’re open 24 hours.