Sewer roaches are a common but unsettling problem for homeowners in Delaware. Many assume they’re a different species, but they’re actually just American cockroaches.
These pests thrive in damp, dark places like sewers, drains, and basements. They don’t invade homes because of poor cleanliness. They come looking for moisture and shelter.
This guide explains everything you need to know about sewer roaches: how to identify them, why they’re a problem, and most importantly, how to get rid of them.
Key Takeaways
- Sewer roaches are American cockroaches that thrive in damp, dark areas like sewer systems and drains.
- They don’t bite, but they spread bacteria and allergens.
- Getting rid of them requires a combination of sanitation, barriers, and pest control methods.
- Professional drain cleaning can remove food sources and prevent infestations.
What Are Sewer Roaches?
Sewer roaches, also known as American cockroaches (Periplaneta americana), are one of the largest roach species in the U.S. They prefer warm, humid environments and are commonly found in sewers, drainage systems, and basements.
Unlike some pests, they don’t rely solely on food scraps. Moisture is their main attraction.
What Do Sewer Roaches Look Like?
- Size: 1.5 to 2 inches long.
- Color: Reddish-brown or mahogany.
- Wings: Both males and females have fully developed wings and can fly short distances.
- Speed: Fast-moving, often disappearing before you can react.
- Markings: A yellowish figure-eight pattern behind the head.
- Common Hiding Spots: Basements, crawl spaces, drains, and anywhere with moisture.
Are Sewer Roaches Dangerous?
Sewer roaches don’t bite or sting, but they’re still a serious problem. These pests travel through filthy environments – sewage, garbage, and decaying matter—picking up bacteria and pathogens along the way. They contaminate kitchen surfaces, food, and utensils, potentially spreading Salmonella, E. coli, and parasites.
They also shed skin and leave behind feces, which contain allergens that can trigger asthma and allergies.
7 Ways to Get Rid of Sewer Roaches
Cockroach control is tough. Their hard exoskeleton makes them difficult to squash, and they’re resistant to some pesticides. But with the right approach, you can eliminate them.
1. Sanitation & Moisture Control
Roaches need water to survive. Cutting off their moisture source is the first step.
- Store food properly and clean up spills.
- Don’t leave dirty dishes overnight.
- Fix leaks and eliminate standing water.
- Use dehumidifiers in damp areas.
- Flush unused drains to prevent roach entry.
Without water, sewer roaches often die from dehydration inside homes.
2. Seal Entry Points
Sealing entry points is one of the best ways to keep roaches out.
- Close cracks in walls, floors, and foundations.
- Install weather stripping on doors and windows.
- Repair torn window screens.
3. Bait Stations & Traps
Baits and traps work by attracting roaches and poisoning them.
- Sticky traps: Place them in common roach pathways.
- Gel baits: Roaches carry the poison back to their nests, eliminating colonies over time.
4. Insecticidal Dusts
- Boric acid: A slow-acting but effective roach killer.
- Diatomaceous earth: Cuts into roaches’ exoskeletons, dehydrating them.
Both work best in dry areas where they won’t wash away.
5. Insecticide Sprays
Insecticide sprays target cracks, crevices, and hiding spots. Use them carefully, especially around pets and children.
6. Regular Pest Inspections
Professional pest control services can detect early signs of infestations and prevent major problems before they start.
7. Professional Drain Cleaning
Roaches often live in drains, feeding on organic buildup. Professional drain cleaning removes their food sources and potential nesting spots.
How to Prevent Sewer Roaches
Preventing sewer roaches is easier than eliminating them. Follow the same steps used for removal:
- Keep your home clean.
- Fix leaks and eliminate moisture sources.
- Seal entry points to block roaches from getting inside.
Keep Your Drains Roach-Free With Clog Wizards
Regular drain maintenance helps prevent sewer roach infestations. If DIY methods fail, professional drain unclogging services can remove hidden sources of food and moisture.
Clog Wizards offers expert drain-cleaning services in Wilmington, DE, and the surrounding areas. Preventing an infestation is always easier than fighting one.
Contact Clog Wizards today, we’re Clearing drains like MAGIC!
FAQs
Sewer roaches are a common concern, and many homeowners have similar questions. Here are answers to the most frequently asked ones.
Are sewer roaches the same as water bugs?
Yes, people often call them “water bugs,” but they are actually American cockroaches.
Why do I see sewer roaches in my bathroom?
They enter through drains and pipes, seeking moisture and shelter.
Do sewer roaches mean my house is dirty?
No. Even the cleanest homes can have sewer roach problems if there’s moisture or easy access points.
What kills sewer roaches instantly?
Insecticide sprays work fast, but for long-term control, baits, dusts, and moisture control are best.
Can sewer roaches come up through toilets?
Yes, though it’s rare. Keeping toilet lids closed and flushing regularly can help prevent this.
Final Thoughts
Sewer roaches are more common than people realize. Understanding what they are, where they hide, and how to get rid of them is the key to keeping your home pest-free.
For serious infestations, professional help is the best solution.