Whether it's a slow leak that's been eating your subfloor for weeks or a flooded basement at 2am, our Walnut crews are already moving. We dispatch Walnut units carrying industrial extraction pumps, air movers, and commercial dehumidifiers already loaded on the truck.

Hirex Water Damage started because homeowners in Walnut, CA kept telling us the same story: a national hotline picked up, put them on hold, and then subcontracted the job out to whoever was cheapest and closest. Every technician on our Walnut roster is a Hirex Water Damage employee, not a gig-app contractor pulled from a random directory.
Our senior technicians are IICRC-certified and have worked everything from a clean supply-line break to a full sewage backup, so Water Damage Repair in Walnut isn't a side service we tacked on — it's the reason the company exists. We're fully insured and licensed to work anywhere in Walnut, CA, so you're protected from the moment our truck pulls into the driveway.
We keep a stocked warehouse inside Walnut, CA so equipment never has to be trucked in from another region, which is the difference between a 45-minute arrival and a next-day one.
Anyone in Walnut who has had a supply line fail overnight knows the real cost isn't the leak itself, it's how long the standing water sits before someone with the right equipment arrives. That's the gap Hirex Water Damage was built to close, one Walnut call at a time.

The most expensive Walnut restoration jobs we run almost never started as a dramatic flood; they started as something small that got put off. Here's what tells us a property needs professional attention rather than a mop and a fan:
If any of that sounds familiar, don't wait for it to get worse — call our Walnut line and we'll tell you honestly whether it's a same-day emergency or something we can schedule.
We size the Walnut response to the actual damage — a single-room extraction gets a two-person crew, a commercial loss gets the full fleet — nothing gets a cookie-cutter response.
Our Walnut units run truck-mount extraction pumps that pull thousands of gallons per hour, cutting standing-water time from days to hours. Every extraction job includes moisture mapping so we know exactly which materials are still holding water once the visible flooding is gone.
Once water is out, we bring in commercial air movers and LGR dehumidifiers, positioned using psychrometric readings rather than guesswork, with daily drying logs so you can see the numbers improving, not just take our word for it.
For families in Walnut, this covers flood-cut drywall removal, subfloor evaluation, and packing out salvageable belongings for cleaning, with clear photo documentation at every stage for your insurance claim.
For commercial Walnut accounts, we assign a project lead, run crews after normal hours to reduce downtime, and bring equipment sized to the actual footprint — we know a flooded lobby or a leaking unit above tenants below has to move fast.
When a Walnut job involves sewage backup, our team suits up in full PPE, applies EPA-registered antimicrobials, and safely disposes of porous materials that can't be saved.
On top of standard drying, our Walnut crews treat affected materials to reduce mold risk and will be upfront if a section needs specialist remediation.

You get a written estimate before any equipment runs, not a mystery total handed to you after the fact.
Our Walnut, CA warehouse keeps drying equipment close, which typically puts a Walnut tech at your door inside an hour.
Our paperwork is built to match what adjusters expect, and we'll speak with your insurer directly on your behalf.
We don't call a job finished until the moisture meter agrees, and if it doesn't, we return at no additional cost.
Our Walnut team asks a handful of targeted questions so the truck that shows up already has the right gear loaded.
Our nearest available Walnut crew is dispatched immediately with truck-mount extraction gear on board.
Extraction happens immediately, followed by a moisture survey that tells us precisely where the drying equipment needs to go.
Daily moisture checks continue until every affected material reads dry, and you get a complete report at the end.

Our Walnut technicians use moisture meters at the start and the end of every job, and the final number has to hit the dry standard before we leave. If a callback shows lingering moisture within 30 days of a completed job, we return and correct it at no additional charge.
That's not a marketing line — it's written into every Walnut work order we issue. If a second visit is ever needed, it comes from the same crew that handled the original job whenever scheduling allows, since they already know the property and the readings we started from.

"We had standing water from a burst water heater and the technician showed up before I even finished mopping the entry way." — Danielle R.
"I didn't touch the claim paperwork once. They sent it straight to the adjuster with photos and moisture logs attached." — Marcus T.
"They showed me the daily moisture readings so I wasn't just trusting a stranger's word that the house was dry." — Priya S.
"A supply line failure flooded our kitchen and this crew had us reopened in under a week — much faster than we expected." — Aaron W.
"They handled a blackwater situation in our basement without making me feel like it was a bigger disaster than it was." — Lena G.
"The quote matched the final invoice exactly. No surprise charges tacked on at the end." — Sam O.
Because our equipment is staged inside Walnut, CA, most Walnut calls see a technician on-site within 60 to 90 minutes of the initial call.
Upfront, written pricing is standard on every Walnut job, not an add-on option.
Around-the-clock coverage in Walnut includes extraction, drying, and Category 3 sewage response — nothing on that list waits for morning.
Yes, we document everything with photos and moisture readings and can communicate directly with your adjuster.
We take moisture meter readings on affected materials and compare them against the dry standard for that material type — a visual check alone isn't enough.
Yes, our Walnut crews are trained and equipped for Category 3 blackwater response, including PPE and antimicrobial treatment.
Cut power to the affected area if there's standing water near outlets, and avoid walking through it until our Walnut tech confirms it's safe.
We scale crews and equipment for commercial Walnut accounts and assign a dedicated project lead for anything beyond a single unit.
Typical drying time runs 3-5 days for a Walnut home, though a job that sat unaddressed longer can take longer to fully dry.
Not if it's addressed quickly — mold generally needs 24-48 hours of sustained moisture, which is exactly why fast extraction matters.
We stand behind every Walnut job with a documented dry-standard guarantee and a 30-day callback policy.
We cover Walnut and the surrounding zip codes listed below, plus neighboring communities throughout Walnut, CA.
Beyond Walnut itself, our coverage extends across nearby zip codes, with additional Walnut, CA crews available for large-scale or commercial losses. If your address falls inside or near Walnut, a Hirex Water Damage crew can typically respond the same day.
— Embedded service-area map for Walnut, Walnut, CAOne call gets you a Walnut-based team, not a routed national queue.
Call +1-844-833-1325