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What Can (and Can't) Go in Your Dumpster

Most of what you're clearing out can go straight in the container — but a short list of items can't, for safety and legal reasons. Here's exactly what belongs where in New Castle County.

By Anthony Marino · 6 min read · Updated January 2025

Dumpster loaded with debris in Wilmington

One of the most common questions we get before delivery is a simple one: can I put this in the dumpster? The good news is that the vast majority of household, remodeling, and construction debris is perfectly fine. Only a specific list of items is off-limits — and there are good reasons for each. Here's the full rundown for Wilmington and New Castle County renters.

What you CAN put in the dumpster

Nearly everything from a typical project is accepted, including:

  • General household junk and trash
  • Furniture — couches, tables, mattresses, dressers
  • Remodeling debris — drywall, wood, cabinetry, fixtures
  • Flooring — carpet, tile, laminate, hardwood
  • Yard waste — branches, brush, leaves, sod
  • Construction and demolition debris
  • Roofing shingles (in a right-sized container)
  • Non-refrigerant appliances (see below)
  • Concrete, brick, and dirt (in a dedicated container)

What you CANNOT put in the dumpster

These items are prohibited for safety, environmental, or legal reasons — and New Castle County has specific handling rules for most of them:

  • Hazardous waste — chemicals, solvents, pesticides, motor oil
  • Wet paint and stains — dried-out latex paint cans are sometimes okay; liquids are not
  • Tires — these have a separate disposal stream in Delaware
  • Batteries — car batteries and rechargeables
  • Appliances with refrigerant — refrigerators, freezers, AC units (the refrigerant must be professionally removed first)
  • Electronics — TVs, monitors, and computers in some cases (e-waste)
  • Medical waste and sharps
  • Flammable or explosive materials — propane tanks, fuel
  • Asbestos — requires licensed abatement

Where to take prohibited items in New Castle County

Just because something can't go in the container doesn't mean it's a headache to dispose of. New Castle County offers several good options:

  • The DSWA Cherry Island Landfill on East 12th Street accepts construction and demolition debris, and the Delaware Solid Waste Authority (DSWA) runs recycling and household-hazardous-waste drop-off for New Castle County.
  • Household hazardous waste — the county runs collection programs for chemicals, paint, and similar materials. Check with the New Castle County solid waste office for current dates.
  • Tires and batteries — many auto retailers accept these, and the county has designated handling.
  • Appliances with refrigerant — have the refrigerant removed by a professional, after which the metal shell can go in your dumpster.

For official, up-to-date guidance, the Delaware Solid Waste Authority (DSWA) is the best reference for disposal and recycling, and the City of Wilmington publishes its own sanitation and cleanup guidelines.

When in doubt, just ask

This list covers the big ones, but if you're staring at something unusual and wondering whether it's allowed, don't guess — call us. We'd much rather answer a quick question than have you discover a problem at pickup. Keeping prohibited items out also protects your flat rate, since contaminated loads can incur extra handling charges.

Working on a project in Wilmington or New Castle County? Call (302) 600-3459 and we'll help you choose the right dumpster size and give you a flat, all-in quote — delivery, pickup, and disposal included.
Answers

Common questions

Can I put a mattress in a dumpster?

Yes, mattresses and furniture are accepted in our roll-off containers. Just load them flat to save space.

Can I throw away a refrigerator?

Not until the refrigerant is professionally removed. Once that's done, the metal appliance can go in the dumpster. We can point you to local options for refrigerant removal.

What happens if I put a prohibited item in by mistake?

Tell us before pickup if you can. Some prohibited items can trigger extra handling charges or prevent the load from being hauled, so it's always best to keep them out or ask first.

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