Safe Sewage Backup Cleanup In Delaware & Maryland
C&B Complete Cleaning & Construction provides sewage cleanup across Delaware and Maryland for sewer backups, toilet overflows, septic backups, floor drain backups, and other contaminated water damage. This isn't a job for a mop and a shop vac — sewage cleanup starts with safety and containment, then moves through extraction, removal of affected porous materials, cleaning, drying, and documentation.
We answer the phone 24/7, and a First Responder is on site within 90 minutes, with an IICRC-certified technician on every crew. Every sewage job starts with a free inspection so we know exactly how far the contaminated water traveled before we write a plan.
If sewage has backed up into your home or business, call (302) 381-9891. Inspections are free, and the sooner cleanup starts, the less that contamination has a chance to spread.
Why sewage water needs professional cleanup
Sewage is contaminated water — it carries bacteria, viruses, and other pathogens that clean water doesn't, which is why we treat it with a different level of caution from the first step. Our crews wear the protective equipment sewage cleanup calls for, and we make more conservative decisions about which materials can be cleaned and dried versus which have to be removed and replaced.
To be clear about what we offer: sewage cleanup is a service we provide. We don't perform biohazard cleanup — situations involving blood, bodily fluids from trauma or crime scenes, or other biohazard materials fall outside what we do, and we can point you toward a company that handles that work if you need it. Sewage and septic backups are a different category, and they're squarely within what our crews are trained and equipped to handle.
Sewer backup, septic backup, and toilet overflow situations
Sewer backups, septic system backups, and toilet overflows involving solid waste all fall into the most contaminated water category we work with. They can happen for a range of reasons — a municipal sewer line backing up during heavy rain, tree roots blocking a lateral line, a septic system reaching capacity, or a clog forcing wastewater back up through a drain or fixture.
Regardless of the cause, our first priority is stopping the source of contamination from spreading further into the property. Once that's contained, we move into extraction, removing what's affected, and starting the drying process. Our water extraction page covers how we handle standing water removal in more detail.
Containment, removal, cleaning, and drying process
We contain the affected area first, using barriers and negative air pressure where needed to keep contamination from spreading to unaffected parts of the property. From there, we extract standing water, remove porous materials that can't be safely cleaned — carpet, carpet pad, and drywall that's been in contact with sewage usually falls into this category — and clean and sanitize hard surfaces and anything that can reasonably be saved.
Drying follows the same process as any other water damage job, but with more careful monitoring given the contamination involved. Equipment runs 24 hours a day for best results, and we take moisture readings throughout rather than calling a space clean and dry by feel. Our structural drying page covers that part of the process in more depth.
Basement sewage backup cleanup
Basements are a common place for sewage backups to show up, since floor drains and lower-level plumbing fixtures sit closest to the main sewer or septic line. A basement backup often means the contaminated water has spread across a wider area before anyone notices, especially if the space is unfinished or used mostly for storage.
We treat basement sewage backups the same way we treat any sewage job — containment first, then extraction, removal, cleaning, and drying — but we pay close attention to what's stored down there, since boxes, furniture, and other belongings in contact with sewage usually can't be salvaged and need careful, documented disposal.
Odor, mold, and reconstruction considerations
Sewage odor tends to linger longer than odor from clean water, since it comes from contamination rather than just moisture. We clean and sanitize based on what the situation calls for, but we won't promise every trace of odor disappears immediately — sometimes it takes a few days after drying is complete for a space to fully clear.
Moisture from a sewage backup carries the same mold risk as any other water event, and because affected materials often need to be removed anyway, that risk is usually addressed as part of the cleanup itself. If we see visible mold once we're on site, that's handled separately by our mold remediation team. Once the space is dry and clean, our reconstruction team handles the rebuild, so one company takes the job from the first call to the finished repair.
Call C&B for Sewage Cleanup in Delaware & Maryland
If sewage has backed up into your home or business in Delaware or Maryland, call C&B Complete Cleaning & Construction. We'll contain the contamination, remove what can't be saved, clean and sanitize the space, dry it thoroughly, and document the job so you have what you need for insurance and repairs.
We've served this region since 1986, we're licensed, bonded, and insured (DE 2007223623, MHIC 132085), and an IICRC-certified technician is on every crew we send. Call (302) 381-9891 any time, day or night, or send us a request online and we'll follow up within 15 minutes during business hours.




