Opossum Removal – Humane Trapping & Exclusion in Southern California

Common Signs You Need Opossum Removal

Opossums are slow, tough, and surprisingly polite for wild animals – but they still tear up crawlspaces and leave a mess when they move in. In SoCal we see them living under homes, under decks, inside garages, and sometimes in attic spaces that connect through wall voids.

Typical Opossum Red Flags

• Heavy thumping or dragging sounds under floors at night.
• Hissing or growling when you walk near a deck, crawlspace hatch, or side yard.
• Oily, smelly droppings in the crawlspace, under the house, or near foundation vents.
• Pets going crazy at one side of the house, fence line, or by an access door.
• Trash scattered and pet food missing from open bowls or bags left outside.
• Visible track marks in dust or soil along concrete footings and pipes.
• Strong, musky odor under the home or in rooms above a contaminated crawlspace.

A single opossum passing through the yard is usually not an emergency. Opossums actually eat a lot of things you don’t want around – rotting fruit, insects, and even smaller pests. The problem starts when they decide your crawlspace, garage, or attic is a permanent address and begin nesting, defecating, and tearing insulation.

During baby season, females carry joeys in their pouch or on their back. That’s when DIY trapping goes sideways fast – babies are often left behind in the crawlspace or wall voids, creating odor, flies, and a bigger cleanup bill.

Where Opossums Get In & Hide Around Southern California Homes

Opossums are slow climbers but very determined. They don’t chew structure like rats; they take whatever path construction gaps and landscaping give them. We see the same entry points over and over again across SoCal.

Common Opossum Entry Points

• Crawlspace vents and access doors that are loose, rotted, or missing screens.
• Gaps around AC lines, plumbing, and utility penetrations at the foundation.
• Openings under steps, decks, and porches with no dig-proof skirting or lattice backing.
• Garage door gaps and side doors that don’t seal all the way to the slab.
• Carpenter gaps in roof eaves that connect the exterior to wall voids and the attic.
• Ground-level crawlspace holes created by other animals (skunks, raccoons, or old burrows).

Once an opossum finds an easy crawlspace or void, it uses that space like a safe highway – sleeping during the day and heading out at night to feed in yards, alleys, and greenbelts. That’s why we rarely just “set one trap and call it good.” We need to understand the travel pattern and secure the access.

During our inspection, we’ll check the crawlspace, perimeter, and roofline for these openings and let you know what needs to be sealed so you’re not stuck in an endless cycle of “one more opossum.”

Our 4-Step Process for Humane Opossum Removal

Every job follows the same four steps: inspect, remove, seal, and clean. No shortcuts, no “we only set traps” approach. The details change depending on the house and the opossum’s routine, but the framework stays the same.

1. Inspection & Evidence Check

• Inspect crawlspace, decks, garages, and roofline for droppings and tracks.
• Confirm which species we’re dealing with – opossums vs. raccoons, skunks, or feral cats.
• Locate runways, nesting pockets, and high-traffic paths under the home.
• Identify entry points and note which ones must stay open for trapping vs. which can be sealed right away.
• Take photos so you can see exactly what we’re seeing under the house.

2. Trapping & One-Way Systems

For opossums, we typically use cage traps and in some situations one-way doors that let animals exit safely but not re-enter. All trapping is done in line with California law and local city rules.

• Strategic trap placement on active runways and at main crawlspace openings.
• Daily or client-assisted trap checks to keep stress down and avoid long holds.
• Humane handling and legal release or disposition per California regulations.
• Adjustments during baby season to avoid leaving pouch young or small joeys behind.

We won’t promise “catch everything in 24 hours” – wildlife doesn’t work on our schedule – but we do build a realistic plan and communicate clearly so you know what to expect.

3. Exclusion & Dig-Proofing

Once activity has dropped and we’re confident the opossums are out, we shift into exclusion work. This is what keeps you from paying for the same problem twice.

• Screen and repair foundation vents that were pushed in or rusted out.
• Add dig-proof skirting or hardware cloth under decks, steps, and porches.
• Seal gaps around plumbing, AC lines, and electrical conduits.
• Address roofline and carpenter gaps that connect to the attic when needed.
• Tie opossum exclusion into broader wildlife-proofing when appropriate.

4. Cleanup, Sanitation & Follow-Up

After removal and sealing, we focus on the mess left behind. Depending on how long opossums have been active, this can be light or heavy:

• Spot removal of droppings and nesting in limited areas, or
• Full crawlspace cleaning and decontamination for heavy activity.
• Targeted odor treatment around former resting spots and entry points.
• Optional attic or wall work if opossums used those areas too.

When the job is complete, we’ll show you before-and-after photos and go over anything we recommend monitoring, especially around decks, fences, and foundation areas that attract wildlife in your neighborhood.

Crawlspace Cleaning, Odor Control & Damage Repair After Opossums

Opossum damage usually shows up in the crawlspace first: droppings, urine, body oil stains on pipes and beams, and insulation pulled down or tunneled through. Sometimes a dead opossum or forgotten joeys add a whole new layer of smell and insects.

What We Can Do After Opossums Are Gone

• Remove accessible droppings, nesting, carcasses, and trash from crawlspaces.
• Treat contaminated areas with disinfectant and enzyme-based products to break down organic material and reduce odor.
• Replace or re-hang damaged insulation in targeted areas.
• Install or replace ground plastic / vapor barrier where needed.
• Coordinate with crawlspace cleaning and attic services for larger remediation projects.

Not every opossum job needs the full “hazmat crawl.” During your inspection we’ll tell you honestly whether you need a light cleanup, a full crawlspace restoration, or somewhere in between.

DIY Opossum Removal vs. Hiring a Licensed Trapper

We get it – there are cheap traps at the hardware store and a hundred YouTube videos that make opossum removal look easy. Set trap, add cat food, done. Reality is usually messier.

Common DIY Opossum Mistakes

• Trapping one opossum while leaving babies behind in the crawlspace or wall voids.
• Relocating animals illegally or in ways that violate California wildlife rules.
• Closing off the obvious hole while missing the real entry point, forcing animals into walls or attics.
• Using poison meant for rodents, which doesn’t solve the opossum problem and often creates a separate dead-animal issue.
• Underestimating the cleanup needed after animals have been nesting for months.

In California, trapping and relocation of many wildlife species is regulated and must follow strict rules. Working with a licensed trapper protects you from accidental violations and from making a bad situation much worse.

What You Get With Professional Opossum Removal

• Species identification so we’re solving the right problem.
• Humane, legal trapping and eviction strategies.
• A plan that covers removal, cleanup, and exclusion – not just catching one animal.
• Photo documentation of what we find under the house and what we repair.
• Realistic timelines and straight talk about what’s optional vs. what’s critical.

If you’ve already tried DIY and it didn’t work, you’re not alone. A big part of our work is finishing half-done jobs and cleaning up after “cheap fixes” that never addressed the real entry points.

Opossum Removal FAQs

How fast can you come out?

Response time depends on your location and how busy the schedule is that day, but we do our best to offer same-day or next-day inspections for active opossum problems. When you call, we’ll give you the earliest realistic time window and keep you updated if anything changes.

Will the opossum be killed?

Our goal is to handle opossums humanely and in line with California regulations. What happens after capture depends on current state and local rules – our team will explain options clearly before we start service so you know how the process works.

Do you use poison to get rid of opossums?

No. We do not use poison for opossums. We rely on trapping, one-way doors, and exclusion to solve the problem. Poison creates dead-animal issues, odor, and secondary risks to pets and non-target wildlife.

Can you check the crawlspace and attic during the same visit?

Yes. Opossums often use the crawlspace as a base and then travel through wall voids or gaps into the attic. During your inspection we’ll check the crawlspace, perimeter, and roofline so we’re not guessing where they’re going.

How long does opossum trapping usually take?

Most jobs take several nights of trapping and monitoring, but timing depends on how many animals are using the property and how often they’re moving. We’ll review a realistic game plan with you before we start and keep you updated during the process.

Can you help if another company already tried and failed?

Yes. We’re called in all the time after partial work – a few traps with no exclusion, or cheap repairs that animals simply pushed through. We’ll re-inspect, show you what was missed, and design a plan that covers trapping, sealing, and cleanup so you’re not stuck in an endless loop of “one more visit.”