Ontario Water Restoration Pros provides professional sewage & category 3 water cleanup in Ontario, CA for residential and commercial properties across the Inland Empire. Category 3 water is defined by what is in it, not by how much of it there is. An inch of sanitary backup across a commissary kitchen is a bigger job than a foot of clean water in a warehouse. Contamination writes the scope, not volume.
The versions we see most are a blocked building lateral serving a whole apartment block, a floor drain surcharging in a restaurant or food-processing tenant, and a failed sewage ejector under a warehouse restroom core. In every one of them the shared line means the loss can start in somebody else's suite and end in yours. The lateral does not care whose name is on the lease.
The rules are not flexible. Porous materials that took Category 3 water come out: carpet, pad, gypsum below the water line, insulation, particleboard casework, ceiling tile. Semi-porous and non-porous surfaces get cleaned, then cleaned again, then treated with an antimicrobial under the ANSI/IICRC S520 process. Containment and negative air go up before demolition starts, not after.
Food service adds a layer. Anything that contacted contaminated water and touches product is discarded, the affected area stays closed until surfaces have been cleaned and verified, and the paperwork has to satisfy San Bernardino County environmental health as well as your insurer. We write the log with that in mind from the first hour, because getting it wrong closes a kitchen for longer than the cleanup does.
We are also willing to be the ones who say a scope is too small to bother with. A single toilet overflow of clean water in a tiled restroom, caught within the hour, is a mop and a fan, and quoting a containment job for it would be dishonest. Where it is genuinely Category 3, we will not shortcut it either, because a sealed-over sanitary loss becomes a mold claim in about three weeks.
With 15+ years of experience, our licensed and insured team brings the right materials and equipment to every job — desiccant dehumidifiers for large open volumes, low-grain refrigerant dehumidifiers, HEPA-filtered negative air machines, 6-mil poly critical barriers and hard containment, ASTM F2170 in-situ concrete relative-humidity probes, penetrating and non-penetrating moisture meters — and backs the work with a written workmanship warranty. We serve Ontario and nearby communities including Chino, Chino Hills, Montclair, Upland.
What We Handle
Everything our sewage & category 3 water cleanup in Ontario covers
One crew, one point of contact, and the full range of sewage & category 3 water cleanup work in Ontario, CA. If it is on this list we do it in house rather than handing it to a subcontractor:
- sewage cleanup
- category 3 water cleanup
- sewer backup cleanup
- black water cleanup
- restaurant floor drain backup
- commercial sewage removal
- lift station failure cleanup
- grease interceptor overflow
- biohazard water cleanup
- apartment sewer backup
- sanitary sewer overflow
- emergency sewage extraction
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Ontario services.
Materials, equipment and how we do sewage & category 3 water cleanup
The difference between sewage & category 3 water cleanup that lasts and sewage & category 3 water cleanup that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with desiccant dehumidifiers for large open volumes, low-grain refrigerant dehumidifiers, HEPA-filtered negative air machines, 6-mil poly critical barriers and hard containment, spec them to the job instead of to the invoice, and write the material grades into the free estimate so you know exactly what you are buying.
Every Ontario job runs the same way: site walk and measurements, written scope and fixed price, protection of the surrounding area, then the work itself with a daily clean-up. 15+ years of water damage work in the Inland Empire means we have already met whatever your property is going to throw at us — awkward access, older construction, an HOA with opinions.
Where we do sewage & category 3 water cleanup outside Ontario
Ontario Water Restoration Pros covers Ontario and the surrounding communities of the Inland Empire. Crews run out to the same nearby cities every week, so an out-of-town job does not mean an out-of-town price.
- Sewage & Category 3 Water Cleanup in Chino, CA — San Bernardino County, incorporated in 1910, population 91,403 at the 2020 census
- Sewage & Category 3 Water Cleanup in Chino Hills, CA — San Bernardino County, incorporated in 1991, population 78,411 at the 2020 census
- Sewage & Category 3 Water Cleanup in Montclair, CA — San Bernardino County, incorporated in 1956, population 37,865 at the 2020 census
- Sewage & Category 3 Water Cleanup in Upland, CA — San Bernardino County, incorporated in 1906, population 79,040 at the 2020 census
- Sewage & Category 3 Water Cleanup in Rancho Cucamonga, CA — San Bernardino County, incorporated in 1977, population 174,453 at the 2020 census
- Sewage & Category 3 Water Cleanup in Fontana, CA — San Bernardino County, incorporated in 1952, population 208,393 at the 2020 census
Start on the Ontario Water Restoration Pros homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Ontario Chooses Ontario Water Restoration Pros
- ✓A person answers at two in the morning — not an answering service that calls you back after breakfast
- ✓Commercial work phased around your shifts so the building keeps operating while it dries
- ✓Desiccant capacity sized for warehouse volumes, not a van full of household dehumidifiers
- ✓Daily psychrometric logs and moisture maps written the way an adjuster reads them
The standards behind sewage & category 3 water cleanup
Quality here is not a matter of opinion — it is written down. The sewage & category 3 water cleanup work we do in Ontario follows published industry standards: IICRC publishes the S500 water-damage restoration standard, and EPA mold cleanup guidance sets the remediation thresholds and containment practice. If a contractor cannot tell you which standard a detail comes from, that is worth asking about before you sign.
Every sewage & category 3 water cleanup project in Ontario gets the same attention, whether it is a single room or a full commercial job. We show up on schedule, keep the site clean, and stand behind the work — the estimate is free and there is no pressure.
Ready to get started? Call (844) 511-2320 for a free sewage & category 3 water cleanup free estimate in Ontario, or request a quote and we'll get right back to you.