Sewage Backup Cleanup Lynn, MA
Sewage that comes up through a floor drain, toilet or sink carries bacteria and cannot be treated like ordinary water. Crews work in protective gear to remove it, discard what cannot be cleaned and disinfect the rest.
(888) 629-3140Get sewage cleanup help- Floor drain backups
- Toilet overflow
- Sink and tub backups

What to do first about sewage backup cleanup
- 1
Stay out
Keep people and pets away from the affected area.
- 2
Remove the water
Contaminated water is pumped out in protective gear.
- 3
Discard porous items
Carpet, padding and soaked drywall are bagged and removed.
- 4
Disinfect and dry
Surfaces are treated, then equipment dries the structure.
How sewage backup cleanup is handled, step by step
Each step follows the IICRC S500 drying standard, and the right-hand column is the record that step leaves in the claim file.
- 01AssessWater category and spread are documented.Moisture map with the category and class
- 02RemoveWater and porous materials leave the building.Timestamped photos before anything is removed
- 03DisinfectHard surfaces are cleaned and treated.Daily psychrometric and moisture log
- 04DryReadings confirm the structure is dry.Final readings against a dry reference
What does sewage backup cleanup cost in Lynn, MA?
A floor drain backup in an unfinished basement costs $2,500 to $5,000, a finished basement costs $5,000 to $10,000, and a backup on an upper floor or one that spread widely reaches $10,000 to $15,000+.
Floor drain, unfinished
$2,500 to $5,000
- Bare floor cleanup
- Disinfection
- Short drying run
Finished basement
$5,000 to $10,000
- Carpet and padding out
- Drywall removal
- Disinfect and dry
Upper floor or wide spread
$10,000 to $15,000+
- Multiple rooms treated
- Wide material removal
- Extended drying
These are typical ranges, never a quote. The category of water, the square footage, the material class and how fast drying started move the number most. The water damage cost calculator gives a closer planning range.
Backed up sewage is a health hazard from the first moment. Carpet, padding, insulation and drywall that touched it are removed rather than cleaned, because bacteria soak into porous materials that cannot be made safe again.
The city's combined sewers
The city's older sewers are a combined system that carries rainwater, household sewage and industrial wastewater in the same pipe, with 5 overflow points that discharge during heavy rain or snowmelt so flow does not back up into homes. A January 2018 NBC10 Boston investigation described the system, more than a century old, as a possible contributor to backups.
- Keep everyone away from the water, especially children and pets
- Do not run drains, laundry or dishwashers while the sewer is backed up
- Photograph the water, the drain and affected items
- Call a crew in protective gear to remove and disinfect
Neighborhood backup history
NBC10 Boston reported that residents of neighborhoods west of Commercial Street to the Saugus River had complained of sewage backups for years. In April 2026 the sewer commission completed a $120 million project separating stormwater and sewer systems in West Lynn.
Sewage in the house is a health risk that grows as it sits. Reach a crew any hour for protective gear cleanup.
Book a sewage cleanupDisinfection and drying
After removal, surfaces are cleaned, treated with a disinfectant and dried with air movers and dehumidifiers. Related pages: basement flooding cleanup and structural drying.
Report it, then step back
The Lynn Water and Sewer Commission runs the city's sewer system, so a street or main problem is worth reporting. Inside the building, leave the cleanup to a crew with protective gear.
Sewage backup cleanup across Lynn and nearby
Sewage backup calls come from across the city, including streets west of Commercial Street toward the Saugus River, plus Central Square, South Harbor and The Brickyard, within ZIP codes 01901, 01902, 01904 and 01905.
The same service nearby: sewage backup cleanup in Beverly, Salem, Peabody.
Related water damage services
Sewage Backup Cleanup questions, answered
What owners ask most about sewage backup cleanup, from drying time to the claim file.
Ask the drying team by phoneIs sewage backup dangerous to touch?
Yes. It can carry bacteria, viruses and parasites that cause illness through skin contact or breathing mist. Keep out of it and let a crew in protective gear handle removal.
Why does sewage come up through basement drains?
When a sewer is overloaded, flow can push back through the lowest drains in a building, and a basement floor drain, toilet or tub is often where it appears first.
Does insurance cover a sewer backup?
Many policies exclude sewer and drain backup unless an added endorsement is in place. Ask the carrier early, and keep photos, receipts and the crew's records for whatever claim applies.
Can carpet and furniture be saved?
Carpet, padding and upholstered pieces that touched sewage are usually discarded. Hard items like plastic, glass and sealed wood can often be cleaned and disinfected.
Should I report the backup to the city?
If the problem looks like it comes from the street or main, reporting it to the water and sewer commission is sensible. The cleanup inside the building is a separate job for a crew.
Sewage backup? Get it out safely
Tell the crew which drain backed up and how far the water spread, and the cleanup will be planned around it.