Water damage drying
Fire & smoke cleanup
Mold remediation
Storm response
Sewage cleanup
ReconstructionFree visual inspection and a written scope of work before any mitigation begins - photos, moisture readings, and drying logs go in your claim file
The scope we write is the scope we bill. Anything new gets shown to you, in writing, before we touch it.
Get your free estimateFast, Reliable Water Damage Restoration Across Ontario
Water damage in an Ontario home rarely announces itself politely. A galvanized supply line lets go behind a finished wall near Euclid Avenue, a slab leak creeps under laminate flooring in a newer tract development, or a Santa Ana wind event pushes soot and ash through every window seal. When water is moving, the first two hours determine how much of your home can be saved. Our crews reach Ontario addresses within 60 to 90 minutes, with truck-mounted extraction, professional-grade drying equipment, and a written price before any work begins. Call (341) 212-7342 and a real person answers, day or night.
Why Tidemark Water Damage Riverside Is Ontario’s Preferred Water Damage Restoration Company
We work differently than the national franchises that parachute in and out of Ontario. Our technicians are IICRC-, RIA-, and IFA-credentialed, background-checked, and uniformed, and they arrive with shoe covers and drop cloths already on the truck. Before any equipment comes through your door, you have a written scope and price in hand. That is not a courtesy; it is the way we operate on every job, from a small bathroom leak to a 60,000-square-foot warehouse flood.
Rick Sumner, who leads our restoration teams, is known around Ontario for a calm, methodical approach. He and the crew explain what we are doing before we do it: where the water traveled, what we are protecting, and how we will dry past the tide mark rather than stopping at the visible stain. The tide mark is the line water leaves on a wall, and finding it is the first thing our technicians look for on every job. If restoration is not done right, the 365-Day Done Right Promise means we make it right, long after the crew has left.
Restoration work we handle
Flood Damage Restoration in Ontario
Flood damage restoration in Ontario covers a wide spectrum, from a supply line failure in a 1950s rancher to a fire suppression discharge in a distribution center off Vineyard Avenue. The job starts with extraction: getting standing water out of the structure before it migrates into wall cavities, subflooring, and concrete. Then we map the moisture, set up containment, and deploy drying equipment sized to the space. In Ontario, a typical residential flood cleanup runs $2,800 to $6,500 depending on square footage and how far the water traveled. A commercial loss is different math entirely. You see the written number before we start, every time.
Warehouse and Distribution Center Floods
Ontario’s position as a logistics and warehousing hub in the Inland Empire means restoration companies here handle a disproportionate number of large-scale commercial water losses in freight and distribution centers, not just single-family homes. Our crew responded to a warehouse flood off Vineyard Avenue after a freight distribution center’s fire suppression system discharged. We deployed containment, truck-mounted extraction, and 40 air movers with desiccant dehumidifiers to dry 60,000 square feet of racking and staging areas, using moisture mapping and drying logs to bring the facility back to pre-loss condition before perishable supply chain schedules slipped.
Burst Pipe and Supply Line Failures
Galvanized supply lines in 1950s-era homes near Euclid Avenue corrode from the inside out, often bursting behind finished walls where leaks go unnoticed until structural drying is needed. By the time you see the water, it has typically been traveling for hours or days. We open only what needs to be opened, extract, and dry in place wherever the framing allows it.
Water Damage Cleanup in Ontario
Water damage cleanup in Ontario is the phase between the emergency and the rebuild, and it is where a sloppy job in a tract home or a 1960s rambler turns into a mold problem six months later. Cleanup means more than removing standing water. It means removing saturated drywall, carpet padding, and baseboards that cannot be saved; treating affected surfaces with antimicrobial agents where appropriate; and drying the structure to a measured standard, not a guess. For a single room, Ontario homeowners typically pay $1,500 to $3,200 for cleanup and drying. Larger losses run higher, and you will know the number before we start.
Pet-Safe Drying and Quiet Operation
We use pet-safe drying agents where there is a choice, and lower-decibel settings during school hours and nap time. Shoe covers go on at the door. Drop cloths cover the floor before the first piece of equipment comes in. A photo of the clean-up is taken and shared before the crew leaves, so you see exactly what was done and how it was left.
Slab Foundation Leaks
Slab-on-grade foundations in Ontario’s newer tract developments can trap water under laminate flooring after a supply line leak, requiring subsurface moisture mapping to avoid mold growth and stripping. We use thermal imaging and penetrating moisture meters to find the water under the slab, then dry it without tearing out flooring that can be saved.
Trusted Brands We Service in Ontario
Our drying equipment includes Phoenix desiccant dehumidifiers, XPOWER air movers, and B-Air axial fans, the same machines used by leading restoration specialists. We keep replacement filters, antimicrobial agents, and containment supplies stocked on our trucks so Ontario jobs do not stall waiting on parts. For Injectidry systems on hardwood floors and cabinetry, our technicians arrive with the mats and manifolds already loaded. When you hire us, you are hiring the equipment and the people who know how to run it.
Common Water Damage Restoration Problems We See in Ontario Homes
- Corroded galvanized supply lines in older homes. Homes built near Euclid Avenue in the 1950s and early 1960s often still have original galvanized plumbing that corrodes from the inside out. These pipes burst behind walls, in crawlspaces, and under slabs, and the leak goes unnoticed until drywall is soft to the touch.
- Slab leaks in newer tract developments. Ontario’s newer subdivisions sit on slab-on-grade foundations. When a supply line fails under the slab, water travels under flooring and into walls before you ever see a puddle. Detecting and drying these leaks requires moisture mapping, thermal imaging, and sometimes controlled demo of the slab itself.
- Santa Ana wind soot and ash intrusion. During Santa Ana wind season, restoration companies see a spike in calls for soot and ash cleanup from wind-driven wildfire particulates, especially in neighborhoods bordering the 60 freeway and the northern foothills. Homeowners often attempt DIY cleanup before realizing the need for antimicrobial treatment and proper containment.
- Flat roof and parapet wall leaks on commercial buildings. Ontario’s commercial and industrial buildings often have low-slope roofs and parapet walls that fail during heavy winter rains. The water enters the building at the roof line and travels down through insulation, rusting metal studs and soaking drywall before anyone notices.
See the difference
Before
After
Before
After
Before
AfterPricing for Water Damage Restoration in Ontario, CA
Residential water damage cleanup and drying in Ontario typically runs $1,500 to $6,500 depending on how many rooms are involved and how far the water traveled. A single bathroom supply line leak is usually at the low end; a burst pipe that floods a hallway and two bedrooms lands in the middle; a slab leak that saturates flooring and wicks up drywall across multiple rooms runs higher. Commercial losses are priced per square foot and scope, and you get the written number before any work starts. Estimates are free. Call (341) 212-7342 and we will walk you through the exact scope for your home.
We Also Serve Cities Near Ontario
Our team handles Water Damage Restoration throughout the surrounding Inland Empire, including Montclair, Claremont, Upland, and Rancho Cucamonga. If you live in one of these cities, our response times are comparable to what we offer in Ontario, and the same written-price-before-work policy applies.
Serving Ontario, CA - Our Local Coverage Area
We’re based in the Ontario area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Water Damage Restoration in Ontario
Call within the first hour. Galvanized pipes in Ontario’s older homes fail catastrophically, and the water moves behind walls and under flooring quickly. The faster we extract and start drying, the more drywall, flooring, and framing we can save. Call (341) 212-7342 and we will have a crew on the way to your Ontario address within 60 to 90 minutes.
No. Surface moisture may evaporate in Ontario’s dry summers, but water trapped inside wall cavities, under flooring, and behind baseboards does not. In fact, our dry climate often masks the problem: the visible puddle disappears while the structural moisture remains, feeding mold and rotting framing out of sight. Professional drying equipment removes what the desert air cannot reach.
Category 1 is clean water from a supply line or fire suppression system. Category 3 is contaminated water, such as sewage backups or floodwater that has picked up chemicals and debris from a warehouse floor. In Ontario’s distribution centers, Category 3 losses are common when fire suppression water mixes with stored goods and floor contaminants. Category 3 requires full containment, antimicrobial treatment, and removal of all affected porous materials. If you are unsure which category you are dealing with, call us and we will assess it before any work starts.
We map the moisture under the slab using thermal imaging and penetrating meters, then dry the area with a combination of targeted extraction, dehumidification, and controlled demo where necessary. Slab leaks in Ontario’s newer tract homes often require removing flooring to expose the affected slab, but we do not tear out more than needed. You will see the written scope and price before any demo begins.
Santa Ana winds push wildfire particulate, ash, and fine dust into homes bordering the 60 freeway and the northern foothills. The soot settles into carpets, drapes, and HVAC systems, and the fine particulate requires antimicrobial treatment and proper containment to remove safely. We see this spike every fall and early winter in Ontario, and we stock the containment and treatment supplies needed to handle it quickly. If your home smells like smoke after a wind event, call (341) 212-7342 for an assessment.
Call Tidemark Water Damage Riverside for Water Damage Restoration in Ontario, CA
If water is moving in your Ontario home or business, call (341) 212-7342 right now. A live person answers, 24 hours a day, 7 days a week. We will ask about the source of the water, the rooms affected, and your address in Ontario, then dispatch a uniformed, background-checked crew with professional-grade equipment. You will get a written price before any work starts, shoe covers and drop cloths on every visit, and a photo of the clean-up before the crew leaves. If the restoration is not done right, the 365-Day Done Right Promise means we make it right. That is the standard we have held since 2006 as part of the Cedarwell Care Promise network.
Written by Rick Sumner, Owner at Tidemark Water Damage Riverside, serving Ontario, CA.