Free 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.
24/7 Emergency Sewage Cleanup in Hollis
Sewage backup in a Hollis basement is a Category 3 water event, and it needs immediate extraction before contaminated water wicks into original plaster walls and wood subfloors. Our crews answer live at two in the morning, dispatch into Hollis within 45 minutes, and start extraction the same visit. Call (518) 627-5878 now for a free visual inspection and a firm scope before the damage spreads further.
Understanding Sewage Cleanup Severity in Hollis Properties
Not every basement flood is the same. Clean water from a burst supply line is Category 1. Gray water from a washing machine overflow is Category 2. Sewage backup, whether it comes from a collapsed clay-tile lateral or a combined sewer surcharge during a heavy rain event, is Category 3 black water. That water carries bacteria, viruses, and parasites, and it demands full PPE, containment, and disposal protocols rather than simple extraction.
Hollis homes complicate this picture. Most of the housing stock here was built between the 1920s and 1950s, semi-detached and detached brick one- and two-family houses. Many have original clay-tile sewer laterals that have deteriorated over 70 to 100 years. Root intrusion is common across southeastern Queens. When a lateral collapses or a storm surcharges the combined sewer, sewage pushes up through basement floor drains and toilets. In finished basements, that water travels behind drywall and under vinyl plank flooring before visible staining even appears. By the time a homeowner notices the smell, the contamination has already spread into wall cavities and subflooring.
Why Hollis Property Owners Choose Floodline Restoration Co.
- 45-minute response commitment to any Hollis address, with crews dispatched from our New York City office and routed through local streets like Hillside Avenue and Jamaica Avenue.
- 24/7 live answer from a real dispatcher, never a recording or an answering service, every day of the year.
- IICRC-certified technicians trained to the Water Damage Restoration Technician (WRT) and Applied Microbial Remediation Technician (AMRT) standards, plus RIA and IFA certifications.
- Free visual inspection with a written scope before any work starts, so you know the exact plan and price before we touch a wall.
- Direct insurance billing with photo documentation, moisture logs, and line-item estimates sent to your adjuster, not handed to you to forward.
- One team from extraction to reconstruction, so the crew that pulls the sewage is the same crew that rebuilds the wall, no mid-job handoff.
Our Sewage Cleanup Process
Inspection & Assessment
We walk the full affected area, use thermal imaging and moisture meters to map how far the sewage has traveled, and check for the hidden plumbing and electrical issues common in Hollis basement conversions. You get a written scope before anything else happens.
Extraction & Stabilization
Our techs remove standing black water using truck-mounted extraction units, then cut and remove contaminated drywall, carpet, and padding. Non-salvageable material goes into sealed disposal bags before it leaves the basement.
Drying & Dehumidification
We set Phoenix air movers and B-Air dehumidifiers to create negative air pressure and pull moisture from original plaster walls, wood subfloors, and framing. Daily moisture readings are logged until the dry standard is met.
Cleaning & Sanitization
All salvageable surfaces get an antimicrobial treatment, and we run HEPA air scrubbers to pull airborne contaminants from the basement. This step is non-negotiable after any Category 3 event.
Code & Liability Flagging
Because so many Hollis basements were finished without permits, we document any non-code plumbing traps, missing vapor barriers, or open electrical splices we find behind damaged walls. This protects you from future liability and insurance disputes.
Repairs & Restoration
We rebuild what we removed, from drywall and insulation to flooring and trim, and hand you the finished space with the 90-Day Done Right Promise in writing. If it is not done right, we make it right.
Need Emergency Sewage Cleanup in Hollis Now?
Crews minutes away, answering live 24 hours a day. The sooner we start, the less it costs.
Working With Your Insurance Company
Sewage backup claims are almost always covered under standard homeowner policies when the damage is sudden and accidental, but carriers move faster when the claim file is built correctly from hour one. We know what adjusters in the Queens market expect, and we give it to them without you acting as messenger. Our crews photograph every damaged area before demolition, log moisture readings daily, and produce a line-item scope with industry-standard pricing. We also speak directly with your adjuster to answer questions about Category 3 protocol and structural drying. The less time you spend on the phone with your carrier, the faster this gets resolved.
What We Provide Your Insurer
- Thorough documentation of the loss
- Photos of all damage, room by room
- Moisture readings and drying logs
- A detailed, line-item scope of work
- Direct coordination with your carrier
Built for Hollis’s Loss Calendar
Hollis sits in flat, low-lying southeastern Queens, and that topography dictates when sewage backups happen here. Intense summer thunderstorms between June and August produce rapid surface flooding with nowhere to drain, and the aging combined sewer infrastructure surcharges under that load. Sewage pushes backward through basement floor drains and toilets in minutes. Winter nor’easters create the same problem, plus the added pressure of saturated soil around foundation walls. In spring, the shallow groundwater table in this part of Queens rises enough that hydrostatic pressure alone can force moisture through basement slab cracks, even without a storm. Homes with original clay-tile laterals face root intrusion year-round, but it worsens in wet months when roots grow actively toward water sources. That is why we see more Sewage Cleanup calls from Hollis between March and September than any other stretch of the year.
Sewage Cleanup Across Hollis’s Neighborhoods
Hollis runs from the Jamaica border on the west side to Francis Lewis Boulevard on the east, with Hillside Avenue and Jamaica Avenue as the main commercial corridors. The blocks near 191st Street and 100th Avenue hold many of the neighborhood’s converted basement apartments, and those are our most frequent sewage backup calls, because unpermitted plumbing and missing vapor barriers hide behind finished walls. Around Murdock Avenue and 202nd Street, the housing stock skews to detached one- and two-family homes with original clay-tile laterals still in the ground. Root intrusion through those laterals routinely backs sewage up through basement floor drains during heavy rain. North of Hillside Avenue, closer to the Hollis Hills border, the properties sit slightly higher and tend to drain better, but we still respond to toilet overflows and washing machine runoff backups there. The blocks around Hollis Playground and the Long Island Rail Road station see older homes with small basement utility areas where access is tight and equipment has to be carried down narrow stairwells. Every route matters when a Category 3 event is spreading.
Specialized Sewage Cleanup Services We Offer in Hollis
Sewage Backup Cleanup
When a combined sewer surcharge or a collapsed lateral pushes sewage up through a Hollis basement floor drain, we handle the full Category 3 protocol: extraction, contaminated material removal, sanitization, drying, and rebuild. We pay particular attention to the original plaster walls and wood subfloors that wick black water upward quickly in older Hollis homes.

Toilet Overflow Cleanup
A toilet overflow in an upstairs bathroom of a Hollis two-family home can saturate ceiling joists and damage the unit below within hours. We extract immediately, open the affected areas, and dry with Phoenix air movers and B-Air dehumidifiers before mold has a chance to take hold in wood framing.

Septic Failure Cleanup
Some Hollis properties on the eastern edge of the neighborhood still rely on older septic systems. When a tank fails or a line breaks, sewage can surface in the yard and seep toward the foundation. We remove contaminated soil, sanitize the affected area, and coordinate reconstruction around the failed system.

Black Water Extraction
Black water extraction in Hollis basement apartments requires more than pumping out standing sewage. Because so many of these units were finished without proper vapor barriers or plumbing traps, we use thermal imaging to trace moisture behind walls and under flooring before it becomes visible. We pull the water, then we find where it went.

Sanitization & Disinfection
After any Category 3 event, we apply antimicrobial treatments to all salvageable surfaces and run HEPA air scrubbers to remove airborne contaminants. In Hollis basement apartments, this step is especially important, because those spaces are often used as primary bedrooms and living areas, not just storage.

Crawl Space Sewage Removal
Sewage that reaches a Hollis crawl space under an older home sits against floor joists and support beams, creating mold risk and structural damage. We remove the contaminated water and soil, dry the space with targeted equipment, and treat for odor and biological hazards.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Sewage Cleanup Costs in Hollis, NY
Sewage cleanup pricing in Hollis depends on how far the contamination has traveled and whether the damage sits in an unfinished utility area or a converted living space. A straightforward sewage backup in an unfinished Hollis basement typically runs $2,500 to $5,500, covering extraction, sanitization, and drying. A toilet overflow contained to one bathroom usually lands between $1,800 and $3,500. But when black water reaches a finished basement apartment with drywall, insulation, and flooring, the scope expands quickly. Those jobs in Hollis commonly run $7,000 to $18,000, because opening walls to find hidden plumbing defects and rebuilding the space is standard practice here. Insurance covers most sudden sewage backup losses, and we bill the carrier directly so you are not carrying the cost while the claim processes. The fastest path to a firm number is a free visual inspection, which gives you a written scope before any work starts.
We Also Serve Cities Near Hollis
Our crews respond throughout southeastern Queens every day. We provide the same 24/7 live dispatch and 45-minute response commitment to Sewage Cleanup in Hollis neighbors in Queens Village, Fresh Meadows, Oakland Gardens, and Cambria Heights. Wherever the backup happens, one call gets a certified crew moving.
Serving Hollis, NY - Our Local Coverage Area
We’re based in the Hollis area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Hollis Sewage Cleanup Questions, Answered
Does a Hollis basement apartment with an unpermitted finish change how sewage cleanup is done?
Yes, and it changes the job significantly. Unpermitted basement finishes in Hollis routinely hide missing vapor barriers, improperly trapped plumbing, and non-code electrical work behind drywall. A sewage backup in one of these spaces means we have to open more walls to trace where contaminated water traveled, flag any code violations we find, and document everything for your insurer. This adds time and protective work, but it also protects you from future liability. Call (518) 627-5878 for a free assessment of what your specific basement layout requires.
How quickly should I call after a sewage backup in my Hollis basement?
Call immediately. Black water spreads through porous materials within minutes, and mold begins forming on wet drywall and wood within 48 hours. In Hollis’s older homes, original plaster walls and wood subfloors wick contaminated water upward fast. The earlier we start extraction and structural drying, the less material we have to remove and the lower the final cost.
Is the flooding in my Hollis basement from sewage or just rainwater?
The smell and color are your first clues. Sewage carries a distinct odor and often appears dark brown or black with visible solids. Rainwater from foundation seepage is typically clear or slightly cloudy. But in Hollis, where the combined sewer system surcharges during heavy rain, the two often mix. A floor drain that backs up during a storm is almost always sewage-contaminated, even if it starts as rainwater. We can test and confirm on site.
Can you dry my Hollis basement without tearing out the original plaster walls?
Sometimes, but not always. If sewage water is confined to the floor and lower wall area, we may be able to salvage plaster walls using targeted drying with Phoenix air movers and B-Air dehumidifiers. However, if black water wicked up behind the plaster or saturated the wood lath, we have to open the walls to remove contaminated material and prevent mold growth inside the cavity. The visual inspection tells us which path applies.
Does Hollis’s shallow groundwater make sewage cleanup more complicated?
It does. The shallow groundwater table in this part of southeastern Queens means basement slabs already face constant hydrostatic pressure. When sewage backs up, that pressure slows drying and can push moisture back through slab cracks even after extraction. We account for this by running dehumidification longer and monitoring daily moisture readings until the dry standard is met, not just until the floor looks dry.
How long does sewage cleanup and drying take in a typical Hollis home?
Most Hollis sewage cleanup jobs take three to seven days from extraction to dry, depending on how far the contamination spread and whether finished basement areas were affected. Reconstruction after drying adds time based on scope, but we handle that phase with the same crew. The written scope you get after inspection includes a timeline so there are no surprises.
Are your technicians certified to handle Category 3 sewage work?
Yes. Every Floodline Restoration Co. technician who enters a Hollis home is background-checked, uniformed, and certified to IICRC standards, including Water Damage Restoration Technician (WRT) and Applied Microbial Remediation Technician (AMRT) credentials where relevant. They are also trained to RIA and IFA standards. We do not send uncertified labor to handle black water.
What is the first thing I should do in the first 30 minutes after discovering a sewage backup in Hollis?
Call (518) 627-5878. Then turn off electricity to the affected area if you can do so safely without stepping into standing water. Do not flush toilets or run water, and keep children and pets away from the area. Open windows if weather permits. Do not attempt to pump the sewage yourself, because category 3 water requires PPE and proper disposal. A live dispatcher answers and gets a crew moving toward Hollis immediately.
On a converted basement unit near 191st Street, our techs responded to a Category 3 black water backup from a deteriorated clay-tile lateral. After water extraction with a Dri-Eaz truck mount, we pulled damaged drywall and discovered a missing trap on a laundry drain and open electrical splices behind the wall. We completed structural drying with Phoenix air movers and a B-Air dehumidifier, then flagged the non-code work before closing out to protect the homeowner from future liability.
If you are looking at sewage in your Hollis basement, do not wait. Call (518) 627-5878 and a live dispatcher will get a certified crew to your home fast. The estimate is free, the scope is written, and the work is backed by the 90-Day Done Right Promise.
Written by Curt Bowman, Owner at Floodline Restoration Co., serving Hollis with full-cycle restoration and a written guarantee on every job.






Before
After
Before
After
Before
After