Leaks, pipes & freezing · Fresno
Leak detection in Fresno, CA
Turn off every fixture and watch the water meter's leak indicator. If it moves, water is leaking somewhere. A plumber uses pressure tests, acoustic listening and thermal imaging to find the leak so only a small section of wall or floor has to be opened.
- Licensed local plumbers
- The problem explained before work starts
- Price agreed before the job begins
Leak detection for Fresno homes
Hidden leaks waste water and rot framing before anyone sees them. In dry climates a slow leak can evaporate as fast as it drips, so a stain may never appear. The first sign is often a water bill that jumps between seasons that should match.
For the full guide, including what you can safely do before a plumber arrives, see leak detection explained.
Leak detection in Fresno at a glance
- Urgency
- Usually plannable
- Area
- Fresno, CA
- Who does the work
- An independent, licensed local plumber
- Permit
- Plumbing permits are issued by the City of Fresno's Development and Resource Management Department.
- Typical steps
- Meter and isolation test → Pinpoint → Open and repair → Document
- Availability
- Call now to check plumber availability
Signs you need leak detection in Fresno
- A water bill higher than the same month last year
- The meter's small triangle or dial turning with everything off
- Warm spots on a floor (a hot water line leaking under a slab)
- Musty smells, bubbling paint or warped baseboards
- Constant sound of running water
Local conditions
Leak detection in Fresno: what's different
Since Fresno installed water meters citywide, hidden leaks show up on bills. Outdoor lines, drip irrigation and pool fill valves are common leak sources in hot summers.
A plumber confirms the leak at the meter and locates it with listening equipment before opening anything.
Fresno summers regularly pass 100°F, so irrigation runs hard and leaks under landscaping can go unnoticed until a soggy patch or a bill shows them. North Fresno slab homes can also develop leaks under the floor, found by warm spots on tile.
- Water and sewer in Fresno
- The City of Fresno Department of Public Utilities provides water and wastewater service. Fresno installed water meters citywide around 2013.
- Permits in Fresno
- Plumbing permits are issued by the City of Fresno's Development and Resource Management Department.
Fresno housing and plumbing
The Tower District and Fig Garden have 1920s–1950s homes with galvanized supply and cast-iron or clay drains. North Fresno is largely 1970s and newer slab construction.
Neighborhoods and ZIP codes
Plumbers on Thawline cover Fresno and Fresno County, including Tower District, Fig Garden, Woodward Park, Sunnyside, Downtown, Old Fig. ZIP codes: 93650 · 93701 · 93702 · 93703 · 93704 · 93705.
Other Fresno conditions that affect plumbing
- Hard water: Groundwater and surface water in Fresno leave scale in heaters and fixtures.
- Summer heat: Attic and garage water heaters sit in extreme heat, stressing tanks and relief valves.
- Galvanized pipe: Older homes still have galvanized supply that corrodes and loses pressure.
- Older laterals: Clay and cast-iron laterals in the Tower District and Fig Garden crack and collect roots from mature trees.
How leak detection works in Fresno
- 1
Meter and isolation test
Fixtures are shut off one branch at a time to see which part of the system is losing water.
- 2
Pinpoint
Acoustic listening, thermal imaging and moisture meters narrow the leak to a small area.
- 3
Open and repair
Only the area over the leak is opened. Repairs are made and pressure tested.
- 4
Document
You get a written description of the cause for insurance or a future buyer.
What affects leak detection cost in Fresno
Every job is priced by the plumber after they see it. These are the things that move the price most. Ask for the price before work starts.
- Supply leak versus drain leak
- Leak location: wall, ceiling, under a slab or in the yard
- Equipment needed to pinpoint it
- Access and patching (drywall repair is often a separate trade)
Leak detection questions in Fresno
How do I check for a leak in Fresno?
How do I check my meter for a leak?
Is the leak my responsibility or the water utility's?
Which homes get slab leaks?
Also in Fresno
Related
Related plumbing services
Burst pipe repair
Turn off the main water shutoff first, then open a faucet on the lowest floor to drain the lines.
Learn more
Water line repair
The water service line runs from the curb stop near the street to your house, buried below the frost line.
Learn more
Repiping
Repiping replaces a home's water supply lines, usually because old galvanized steel has corroded or polybutylene is at risk of failing.
Learn more
Toilet repair
A toilet that runs needs a new flapper or fill valve.
Learn moreGuides
Read before you call
Emergencies
What to do when a pipe bursts
Shut off the main water valve, open the lowest faucet in the house to drain the lines, turn off the water heater, and cut power to any room where water is reaching outlets. Then call a plumber, photograph the damage, and call your insurer.
Emergencies
How to find and test your main water shutoff
Look where the water line enters the house, usually through the basement or crawl space wall facing the street, next to the water meter. Test it once a year by closing it and confirming water stops at a faucet, so you know it works before a pipe bursts.
Costs & planning
High water bill? How to find a hidden leak
Turn off every fixture and watch the meter's leak indicator for 15 minutes. If it moves, put dye in each toilet tank, check the water heater and irrigation, then call for leak detection if you still can't find it.
Need leak detection in Fresno?
Tell us what's going on and your ZIP code. You'll be connected with a licensed plumber who serves your area.
Call now to check plumber availability