A burst supply line, an overflowing tub, or a storm surge under the back door doesn't wait for business hours, and neither do we. 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 crew leads carry IICRC water restoration certifications and have logged real hours on Category 1, 2, and 3 losses, so Flood Damage Cleanup 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.
Our Walnut, CA-based equipment cache means drying gear is already close by, not stuck in a truck three states away.
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.
Whether it's one bedroom carpet or an entire flooded commercial floor, our Walnut crews scale the response to match the loss — nothing gets a cookie-cutter response.
We arrive with submersible pumps and truck-mount extractors that get standing water out of a Walnut property before it soaks deeper into the subfloor. 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.
On the residential side in Walnut, we handle the flood-cut, subfloor checks, and content pack-out so your home is ready to rebuild, 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.
We apply antimicrobial treatment during every Walnut drying job specifically to head off mold before it starts, and we'll flag any area that needs deeper remediation.

We quote the job before equipment gets plugged in, so there's no surprise line item buried in the final invoice.
Because our equipment cache sits inside Walnut, CA, most Walnut calls see a technician on-site in under 60 minutes.
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.
A short call with our Walnut dispatcher tells us whether this is a one-room job or a multi-crew response before anyone drives out.
A licensed technician heads to your Walnut address with extraction and drying equipment already loaded.
We remove standing water first, then map moisture and position air movers and dehumidifiers based on the readings.
We re-check moisture levels daily until materials hit dry standard, then hand you full documentation for your records or your insurer.

We measure moisture with instruments, not guesswork, and we won't sign off on a Walnut job until those readings match the dry standard for the materials involved. If a callback shows lingering moisture within 30 days of a completed job, we return and correct it at no additional charge.
We put that guarantee directly on the Walnut work order, not just in an ad. We try to send the original technician back for any follow-up so you're not re-explaining the job to someone new.

"We had standing water from a burst water heater and the technician showed up before I even finished mopping the entry way." — Danielle R.
"The team handled every conversation with my adjuster — I never had to explain what psychrometrics meant to anyone." — Marcus T.
"The drying logs they left behind actually made sense — I could see the numbers dropping every day until it was done." — Priya S.
"They worked overnight so our restaurant wasn't closed longer than it had to be. That mattered a lot to us." — 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.
Our Walnut on-call rotation covers water extraction, drying, and blackwater cleanup any hour of the day or night.
Yes, we document everything with photos and moisture readings and can communicate directly with your adjuster.
We rely on moisture meters and psychrometric readings, not a guess, before signing off on a Walnut job as complete.
Yes, our Walnut crews are trained and equipped for Category 3 blackwater response, including PPE and antimicrobial treatment.
If it's safe, shut off the water source, move electronics and valuables away from the affected area, and avoid the space if standing water is near outlets.
Yes, we regularly respond to commercial and multi-unit losses in Walnut, including retail, restaurants, and office space.
Typical drying time runs 3-5 days for a Walnut home, though a job that sat unaddressed longer can take longer to fully dry.
Quick extraction and drying in Walnut significantly lowers mold risk, since spores need sustained moisture over roughly a day or two to establish.
Yes, if moisture readings aren't at dry standard when we finish, or a callback shows lingering moisture within 30 days, we return at no extra charge.
Our Walnut coverage extends through the zip codes shown here and into nearby Walnut, CA communities.
Walnut is our home base, and our reach extends across Walnut, CA through a network of staged equipment and on-call technicians. 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 +1-844-578-1604