Slab Leak Repair in Pacifica, CA

Slab leak repair for Pacifica homes

Pacifica's Smart Meters and Slab Leaks

A slab leak is a leak that never sleeps. The line under the floor is under pressure all day and all night, so water escapes whether anyone is home or not. Under a two-month billing cycle, a slab leak could run for weeks before the bill gave it away.

The North Coast County Water District changed that. Its advanced metering page says that beginning in August 2025, the district began replacing touch-read meters with Neptune MACH 10 ultrasonic meters. The listed benefits include “Hourly water usage data,” “Leak detection and daily monitoring,” and “No more waiting 60 days to see your usage.” The district launched a customer portal in April 2026.

Hourly data makes the slab leak pattern visible. A normal household shows use in the morning and evening and close to zero in the middle of the night. A home with a slab leak never reaches zero. The overnight hours show a steady line of flow, hour after hour.

That pattern does not tell you where the leak is. A running toilet or an irrigation leak can look the same. So when you see constant overnight use, we start by ruling those out.

Then we pressure test the hot and cold lines to find which one is losing water and use acoustic and thermal tools to locate the leak under the slab. Once it is marked, we lay out your repair options with an upfront price for each.

A slab leak runs around the clock, out of sight. Request slab leak repair and we will help you stop the loss and protect the floor above it.

Key Takeaways

• A slab leak is a pressurized water line leaking under a concrete floor.
• Pacifica’s new district water meters report hourly use, which makes a constant leak easier to spot.
• Repair options are direct access through the slab, a reroute around it, or a broader repipe.
• We confirm and locate the leak before recommending a repair.

Signs of a Slab Leak

Slab leaks show up through the floor and the meter:

• A warm or hot spot on a tile or wood floor
• Damp carpet or flooring with no spill or plumbing above it
• The sound of running water with every fixture closed
• New cracks in flooring or baseboards that look wet
• A water heater that runs more often than it should
• Water use that never drops to zero

The last one used to be hard to see. In Pacifica, it is now on your account.

Slab Leak Repair Options

The right repair depends on the pipe, the location, and the rest of the plumbing.

Option	What it involves	When it makes sense
Direct access	A small opening through the slab at the leak, then a pipe repair	One leak, the rest of the line sound, an accessible location
Reroute	New line run through walls or ceilings, the old line under the slab abandoned	The line under the slab is aging, or the leak sits under cabinets or finished flooring
Repipe	Replacing a larger part of the supply piping	Several leaks or widespread pipe wear

We tell you which option fits and why. If a reroute avoids cutting a finished floor, we say so.

How Slab Leak Repair in Pacifica, CA Works

1. Confirm the leak. We rule out toilets and irrigation, then pressure test the lines under the slab.
2. Locate it. We use acoustic and thermal tools to mark the leak.
3. Choose the repair. You get an upfront price for each realistic option.
4. Repair and test. We make the repair and pressure test the line before closing up.

We handle permits and inspections and confirm requirements with the city before work starts. Surface restoration, such as finished flooring, is quoted separately, so you see that cost before we open anything.

If you have not confirmed a leak yet, our water leak detection in Pacifica service is the place to start.

Hot Water Slab Leaks

Many slab leaks are on the hot water line. Hot water expands and contracts the pipe each time it runs, and a leak there also heats the slab above it. That is where the warm floor comes from.

A hot water slab leak also costs energy, because your water heater keeps reheating water that never reaches a tap. If your heater runs often and a floor feels warm, call us.

When a Slab Leak Means a Repipe

One slab leak can be a single weak spot. A second one often means the rest of the line is near the end of its life. Pacifica’s housing is mostly mid-century, with a median year built of 1966, and original supply piping in homes that age may have been repaired more than once.

If we find several leaks or worn pipe, we explain the case for a broader repair. Our whole house repiping in Pacifica page covers that choice.

Why Pacifica Homeowners Choose Works Plumbing

• Pacifica is our headquarters
• Acoustic, thermal, and pressure testing before any cut
• Direct access, reroute, and repipe options, priced side by side
• Licensed and insured (CSLB #982663)
• Same-day and 24/7 emergency service
• Financing available on larger repairs

Read about our slab leak repair services across the Peninsula, or see all our services in Pacifica.

Slab Leak Repair in Pacifica: FAQs

How can my NCCWD smart meter show a slab leak?

The district’s ultrasonic meters report hourly use, and the customer portal shows it. A slab leak runs constantly, so overnight hours never drop to zero. That pattern points to a leak, though a toilet or irrigation leak can look similar.

Is a reroute better than breaking into my slab?

It depends. Direct access is often best for a single leak in an open area. A reroute avoids cutting finished floors and replaces an aging line, but it means new pipe through walls or ceilings. We price both so you can compare.

Will my water district reduce my bill for a slab leak?

A slab leak is on your side of the meter. The district has a leak adjustment policy with notice and repair deadlines, covered on our water line repair page. Ask the district about eligibility as soon as you know about the leak.

Can a slab leak damage my Pacifica home?

Water under a slab can soak flooring and raise moisture in the house. A steady leak also wastes water and, on a hot line, energy. Repairing it promptly limits that damage.

Do you repair the floor after a slab leak repair?

We close the access opening as part of the repair. Finished flooring and other surface restoration are quoted separately, so you know that cost before we start.

Schedule Slab Leak Repair in Pacifica

If your hourly use never reaches zero, the leak is running now. Book slab leak repair in Pacifica and we will confirm it, locate it, and price your options upfront.

What’s included

• Check for toilet and irrigation leaks first
• Pressure test of hot and cold lines
• Acoustic and thermal leak location
• Prices for direct access, reroute or repipe
• Repair and pressure test before closing up
• Access opening closed, flooring quoted

How the job goes

• We rule out other leaks and pressure test the lines under the slab
• We locate the leak and price each realistic repair option
• We make the repair you choose and test the line before closing up

Why homeowners choose Works

Works Plumbing locates a slab leak before recommending a repair and prices direct access, reroute and repipe side by side. Our licensed and insured Pacifica plumbers offer same-day service and financing on larger repairs.

See how we handle it: