Most sewage backups in Newark start in the homeowner’s pipe. Not the city’s. That single fact changes who pays and how fast you need to move.
One Call Services has handled sewage cleanup across Newark since 2012. We answer the phone 24 hours a day, 7 days a week, including holidays. Most Newark addresses see a crew within 60 minutes. Call (510) 394-1606 and a person picks up.
Who Owns the Pipe in Newark
Newark, Fremont, and Union City all get sewer service from Union Sanitary District. USD maintains the public mains. That covers 839 miles of pipeline under local streets and easements.
Your sewer lateral is different. It runs from your house to the public main. Under USD Ordinance No. 34, the property owner maintains and repairs that lateral. That includes the part buried under the sidewalk and the street.
So a backup caused by a cracked or root-filled lateral is your problem to solve. A backup caused by a blocked public main is not.
Here is the useful part. USD will inspect the public main at no charge. Call them at (510) 477-7500 any time, day or night. If the blockage sits in the main, they repair it. If it sits in your lateral, you know within hours instead of days.
Make that call early. Then call us. The inspection sorts out responsibility while we stop the damage from spreading.
What to Do in the First Hour
Sewage is not clean water. It carries bacteria and viruses. Treat every backup as a health issue, not just a mess.
Stop using every drain in the house. That means sinks, showers, laundry, and toilets.
Keep children and pets out of the affected rooms.
Do not run fans through standing sewage. It spreads contamination into dry areas.
Shut off power to the room at the breaker if water is near outlets.
Photograph everything before you touch it.
Those photos matter later. They are the record your insurer will ask for.
How We Clean It Up
Extraction, removal of contaminated porous material, disinfection, then drying with air movers, dehumidifiers, and HEPA air scrubbers. We follow the IICRC S500 standard and stop drying when the moisture readings hit target. The full step by step is on our sewage cleanup page.
We are an IICRC Certified Firm, number 163618. Our technicians speak English and Spanish.
Why Newark Homes Back Up
The city sits on flat ground, and homes here are built on slab or over crawlspace. There are almost no basements to catch a backup. Sewage comes up through the lowest fixture instead, which is usually a tub, a shower pan, or a floor drain. That is the practical difference between a backup here and one in a house with a basement. The water surfaces in a bathroom you use every day.
Heavy winter rain compounds it. Groundwater seeps into a damaged lateral and fills a pipe that is already partly blocked.
If your home sits over a crawlspace, ask us to open it. Sewage that surfaces upstairs has often already soaked the soil and joists below. We open the crawlspace on every call for this reason.
A single toilet that keeps overflowing is a different problem with a different fix. We cover that separately.
Not every Newark call is sewage. If yours is clean water from a supply line or an appliance, start with water damage restoration in Newark instead.
We work citywide, including the 94560 zip code, the Thornton Avenue and Cherry Street corridors, and the neighborhoods around NewPark Mall.
Insurance and Who You Claim Against
Standard homeowners policies exclude backups unless you carry a water backup endorsement. Our sewage cleanup page explains that gap in full.
What matters in Newark is who you claim against. If the blockage sat in your lateral, any claim runs through your own policy, and only if you carry the endorsement. If USD finds the blockage in the public main, that is a different claim entirely, against the district rather than your insurer.
Claims against a public agency in California run on short deadlines. Damage to your belongings generally carries a six month window. Damage to the building itself generally carries one year. Do not wait to find out which one applies to you.
That is why the free USD inspection matters so much here. It decides which claim you are even filing.
We do not promise direct billing on a backup, because we cannot see your policy. We document the loss properly either way. Photos, moisture readings, a written scope, and daily drying logs support whichever claim turns out to be the right one.
Check your declarations page for water backup or sewer backup under endorsements before anything happens.
What You Will Be Charged For
The most common complaint about this industry is not the cleanup. It is the invoice.
You get a written scope before we start, not after. Drying equipment is logged daily with the moisture readings that justify it. If the readings say the structure needs another day or two beyond what was quoted, the equipment stays and the quote does not move.
Ask any restoration company for their daily equipment charge and their drying log before you sign.
Who Rebuilds Afterward
Cleanup and drying is only half the job. A Cat 3 backup usually takes out flooring and the bottom two feet of drywall, and something has to go back in.
We do that part too. Same crew, same timeline, no second contractor to find while your bathroom is open to the studs. Ask for the rebuild scope in writing at the same time as the cleanup scope.
Free Inspection, No Pressure
We inspect at no cost. A technician finds the water, checks moisture levels in the surrounding materials, and explains what needs to happen.
You get a written scope before we start. Financing is available if you need it.
If the backup has been sitting more than a day, ask us to check for mold while we are there.
Questions Newark Homeowners Ask
Common Questions
Do you handle sewage backups after hours in Newark?
Yes. We run 24 hours a day, 7 days a week, including holidays. Most Newark addresses see a crew within 60 minutes. Call (510) 394-1606 and you will reach a person, not a recording.
Is the backup my responsibility or USD’s?
It depends on where the blockage sits. You are responsible for your lateral, including the portion under the street. USD is responsible for the public main. Call USD at (510) 477-7500 for a free inspection of the main.
Who do I call first, USD or you?
Both, in either order. USD inspects the public main free at (510) 477-7500, which settles responsibility. We stop the damage spreading while that happens. Waiting on one before starting the other costs you hours.
Do you serve areas outside Newark?
Yes. We dispatch from Fremont, Santa Clara, and Richmond. That covers Fremont, Hayward, Milpitas, San Jose, and Sunnyvale. If you are just over the line, start with sewage cleanup in Union City.
Do your technicians speak Spanish?
Yes. Our technicians and office staff speak English and Spanish. Ask for a Spanish-speaking technician when you call.
How long does drying take?
A clean water loss usually dries in three to five days. Sewage takes longer, because contaminated material has to come out before drying starts, and slab homes with saturated flooring add time. We check moisture readings daily and stop when the structure hits target.
Call Now
A sewage backup gets worse every hour it sits. Bacteria spread. Materials absorb more. The repair scope grows.
Call One Call Services at (510) 394-1606. We answer 24/7, we inspect for free, and we can be at most Newark homes within 60 minutes.
Mold only spreads while it sits. Call One Call Services at (510) 394-1606 for a free mold inspection in San Jose. We test first, remove only what is needed, and put the plan in writing before we start.
Comprehensive Damage Restoration Services
in Fremont CA and Surrounding Areas
We Specialize in Water Damage Services, Flood Damage, Sewage Damage, Crawlspace Clean up, Sewage Clean up, Mold Removal, Mold Remediation, Mold Inspections, Mold Testing, and Mold Estimates for Your Residential and Commercial Properties.