What to Expect During a Slab Leak Repair Visit
A slab leak repair visit can feel intimidating if you have never seen one. Water gets shut off, floors may be opened, and the house will be noisy for a while. Knowing the order of the day makes it easier to plan around the work and to ask good questions before anyone picks up a tool.
This guide walks through what usually happens, from the first conversation to the final walk-through. Details change with the leak location, the repair method and the house, so treat this as a general picture and confirm specifics with your technician. If the leak has not been located yet, start with water leak detection, because a repair plan depends on knowing where the problem is.
The Short Answer
A slab leak repair visit usually follows one order: review the leak location, shut off the water, protect the work area, repair or reroute the pipe, pressure test, then clean up and walk through the result with you.
How much of your home is affected depends on the method. A repair at the leak, a reroute around the slab and a tunnel under it each disturb different parts of the house, so ask which one applies to you before work starts. The options themselves are covered on the slab leak repair page.
Before the Crew Arrives
Most of the important decisions happen before the repair day. By then you should have a written finding that says where the leak is, a plan for how it will be fixed, and a clear price and scope. If any of those are vague, resolve it first. The guide on what to ask when you get slab leak quotes lists the questions worth settling in advance.
It also helps to know which approach is planned. A localized repair, a reroute and a full repipe are different jobs with different amounts of disruption. The page on spot repair versus full repipe explains how that choice is usually made.
The Visit Step by Step
Every job is a little different, but most visits move through the same stages. Timing varies a great deal with the method, the access and what is found once the pipe is exposed, so ask your technician for a realistic window rather than assuming one.
Arrival and review of the findings
The technician confirms the leak location with you, walks the planned path, and points out which rooms, floors and furniture will be affected. This is the moment to ask about anything you were unsure of.
Water shutoff
The main valve is closed so the work area is not live. Plan for water to be off for part of the visit, and ask how long that is likely to last.
Protecting the work area
Floor protection goes down along the path in and out, furniture is moved or covered, and flooring or baseboards may need to come up where access is needed. Ask what will be removed and who puts it back.
Gaining access to the pipe
Depending on the method, the pipe is reached by opening a section of the slab, by routing new line through walls or the attic, or by working from a tunnel under the slab. This is usually the noisiest and dustiest part of the day.
Repair or reroute
The failed section is repaired or replaced, or a new line is run to bypass it. The technician should show you the damaged pipe if you ask, which helps you understand what failed.
Pressure test before anything is closed
Water is turned back on and the new work is checked under pressure while it is still exposed. Ask that the test happens before any concrete or finish work covers the repair.
Cleanup and walk-through
Debris is removed, the opening is closed as agreed, and you walk the job with the technician. Ask for a written summary of what was done and where.
What the Method Changes
The same seven stages apply to every job, but the experience inside the house is very different depending on the approach. The table below is a general comparison, not a promise. Your technician can tell you what applies to your floor plan.
| Approach | Where the work happens | What you may notice |
|---|---|---|
| Repair at the leak | An opening in the floor at the leak location | Concrete breaking in one area, flooring removal there, and a patch afterward |
| Pipe rerouting | New line through walls or the attic, bypassing the slab section | Small openings in walls or ceilings, with less work on the floor itself |
| Tunneling | Access from outside or from a small opening, under the slab | Digging at an access point, with less of the interior floor opened |
| Trenchless methods | Work from limited access points without large openings | Fewer openings, though suitability depends on the pipe and the layout |
| Full repipe | New supply lines throughout the home | The most openings in walls and ceilings, spread across the house |
Not every method suits every house, and the choice can change once the pipe is exposed. If the plan changes on site, ask for the reason and the effect on scope before you agree. For a side-by-side look at replacement against repair, see repipe versus slab leak repair.
Noise, Dust and Access
Breaking concrete is loud, and any method that opens a slab or tunnels beneath it can produce dust. The U.S. Occupational Safety and Health Administration notes that jackhammers and handheld chipping tools can generate respirable crystalline silica dust, and that breathing it over time can permanently damage the lungs. Its fact sheet says wet methods or a vacuum dust collection system can control that dust, and that these may not reliably keep exposure low in enclosed spaces (OSHA fact sheet on jackhammers and chipping tools).
In plain terms, a good crew controls dust and keeps it from spreading through the house. Questions worth asking are how the work area will be sealed off, whether water or vacuum dust control will be used, and how slurry and debris will be cleaned up. Children, pets and anyone with breathing problems are better away from the house during the loudest work, and you should ask the contractor for their recommendation.
Plan for access too. The crew needs a clear path from the entrance to the work area, a place outside for equipment and debris, and room to move. Valuables, wall hangings and anything fragile near the work area are best moved before the day starts.
Living Without Water During the Repair
Water is normally off for at least part of the visit. Fill a few containers for drinking and flushing, and run any laundry or dishes beforehand. If the home has an automatic irrigation controller, a water softener or a pool fill on a schedule, ask whether anything needs to be paused so it does not restart while work is open.
If you have a water heater, ask whether it needs to be turned off while the lines are drained and refilled. Do not guess about a gas or electric appliance, and let the technician tell you what to do.
Paperwork, Payments and Changes
The California Contractors State License Board (CSLB) says a written contract is required for home improvement projects over $500, that changes should be made in writing, and that a contract should describe the work, the price and when payments are due. Its consumer guide also covers down payment limits, the right to cancel, and written change orders that become part of the contract (CSLB home improvement contracts guide).
The guide describes the down payment limit as the lesser of $1,000 or 10 percent of the contract price, with limited exceptions. It describes a right to cancel in writing within three business days, five for buyers 65 or older, with exceptions that include emergency service and repair contracts. Rules can change and your situation may be an exception, so read the current CSLB guidance and your own contract carefully. This is general information and not legal advice.
- Check the contractor’s license status with the CSLB before signing, using the number or website in the guide.
- Make sure the contract names who pulls any needed permits, and ask what inspection is expected for your job.
- If extra work comes up on site, ask for a written change order that states the price before it proceeds.
- Pay according to the written schedule and keep copies of every signed document.
Keep your records together. Detection findings, photos, the contract, change orders and the final invoice are the documents an insurer may ask for if you check insurance coverage for a slab leak.
After the Repair
When the work is finished, walk the whole path with the technician. Look at the repaired area, the patched or closed opening, and any walls, ceilings or floors that were touched. Ask what was done to the pipe, where the new line runs, and what you should watch for over the next few weeks.
- Ask where flooring, baseboards or drywall stand once the plumbing work ends, and who is responsible for finish work.
- Ask for a written description of the repair and any workmanship terms in the contract, without assuming any exist.
- Check the water meter with everything off in the days after, using the water meter leak test.
- Watch for damp spots, warm floors, new sounds of running water or a bill that does not settle back to normal.
Concrete patches and finish materials may need time before they look final. Ask what to expect, and keep heavy furniture off the area until the crew says it is fine.
How to Prepare Before Repair Day
- Clear a path from the front door to the work area and move furniture and fragile items.
- Fill containers with water and finish laundry and dishes first.
- Arrange for children, pets and anyone sensitive to dust or noise to be elsewhere if possible.
- Confirm the plan, scope, price and who restores finish materials, in writing.
- Photograph the rooms and floors beforehand so you have a record of their condition.
- Keep the phone number of your contact handy in case the plan changes on site.
If water is spreading right now, do not wait for repair day. Shut off the main valve and read whether a slab leak is an emergency.
Perris Notes
Many Perris homes are built on slabs, so slab leak repair is a common type of job in the area. If you live in a planned community, check with your homeowners association about work hours, parking for equipment and any rules about debris before the crew arrives. Your water provider is separate from the repair crew, and any billing question about water lost during the leak is handled with the provider.
Slab Leak Repair Visit FAQs
What happens during a slab leak repair?+
How long does a slab leak repair take?+
Will I have to move out during the repair?+
Will the water be shut off?+
Do they have to break my floor?+
Is the dust from breaking concrete a concern?+
Who fixes the flooring and drywall afterward?+
Does the repair get pressure tested?+
Do I need a written contract for the repair?+
What if the plan changes once the pipe is exposed?+
What should I watch for after the repair?+
The Bottom Line
A slab leak repair visit is easier when you know the sequence and the questions to ask. In short:
- settle the plan, scope and price in writing before repair day
- expect water to be off, and expect noise and dust where concrete is opened
- ask how the method you chose affects your floors and walls
- ask for a pressure test before anything is covered
- keep every document, and walk the job before the crew leaves
Related Guides
Ready to Plan Your Repair?
If you have a confirmed leak or want to talk through your repair options, Slab Leak Pros can walk you through what the visit will involve for your home.