Anaheim was orange groves before it was a city, and the trees never entirely left. Mature citrus through the Colony and the older flat neighbourhoods is one of the best roof rat food sources in Orange County, and it sits next to housing stock old enough to have gaps almost everywhere. We handle this mechanically, with trapping and exclusion, and we do not put rodenticide on your property.
Anaheim specifically
Two things drive rodent work here and they compound each other. The first is fruit. The city’s citrus history means producing orange, lemon and avocado trees are still standing in yards across the Colony, west Anaheim and the older central tracts, and a producing tree feeds a rat population year round without anyone noticing.
The second is that Anaheim has an unusually wide spread of construction ages, and each one fails differently. A Colony-era house from the 1910s or 1920s gives you a raised foundation with a century-old crawlspace, original venting, and gaps at every settled joint, so you can have Norway rats below and roof rats above in the same building. Post-war tracts through west and central Anaheim have the classic open eave and dried plumbing boots. Anaheim Hills has tile roofs where the eave course was never properly closed. Very few cities make you check all three.
Where they actually are
Species determines the search, and Anaheim genuinely has both. Roof rats live above you, running the eave line and the perimeter of the attic insulation rather than the middle of the space. Norway rats stay low, working crawlspaces, burrows along foundations, storm drains and the Santa Ana River channel banks.
Outside we start with what touches the roof, since roof rats travel through canopy rather than across open ground. Untrimmed Mexican fan palms are nest sites in their own right at any distance from the house. Then the roofline itself: the gap under barrel tile at the eave, dried plumbing vent boots, failed attic and gable vent screens, and the junction where a patio cover or room addition was tied in. On Colony properties we also check foundation vents, the crawlspace hatch and the base of the structure, because that is where the other species lives.
The signs people miss
- Scratching or rolling overhead in the first two hours after dark, then again before dawn. That nocturnal window separates roof rats from squirrels, which are active in daylight.
- Dark grease smears along a fascia board, rafter, pipe or wall plate. That is body oil from repeated travel and it maps the exact route in.
- Citrus or avocado hollowed out and left as an intact shell under the tree. In a city with this much surviving fruit it is very often the first sign, well before anyone hears anything.
- Droppings in a line along the attic perimeter rather than scattered. Roof rat droppings run about half an inch with pointed ends. Larger, blunter droppings low in a crawlspace point to Norway rats instead, and that changes where traps go.
How we handle it
The inspection is free and it covers whichever parts of the structure your house actually has. On a Colony property that means both the roof and the crawlspace, because assuming one species when there are two is the most common way this job gets done badly.
The work is trapping inside the structure to clear what is already there, then exclusion so it does not repopulate. In practice that means closing the eave tile line or open eave with rodent-grade metal rather than foam, replacing failed vent screens with galvanized steel, collaring plumbing vents, and on older properties reworking foundation venting that was never built to stop anything. Where landscaping is the access route we tell you exactly which branches need cutting back and how far, and which fruit is worth harvesting or clearing.
On rodenticide, and why we do not use it
We do not apply rodenticide, bait or any pesticide on any job. Not as an upsell, not as a first step, not at all.
The practical reason is that poison does not close an entry point. It converts a fixable problem into a recurring monthly bill, and a rat that dies inside a wall cavity leaves you paying someone to cut drywall to reach it. The second reason carries real weight in this city. Anaheim Hills backs onto canyon country supporting great horned owls, red-tailed hawks, bobcats and coyotes, and anticoagulant rodenticide concentrates as it moves up the food chain into exactly those animals. California has tightened restrictions on these products repeatedly for that reason. Trapping and sealing the structure gets you the same result without putting anything into that system, and without leaving a dead animal somewhere you cannot reach.
Rodent control in Anaheim: what the job involves
Photos are from our own crews on real jobs across Orange County and Los Angeles — never stock. We run these same steps on every Anaheim call.
How we handle the animal and the mess
Mechanical control only: trapping and physical exclusion. Every trap we set is checked at least once every 24 hours.
Once the structure is clear, the second half of the job is what got left behind. Droppings and urine in attic insulation are a contamination issue rather than a cosmetic one, and we remove, bag and haul the affected material rather than leaving it in place. In a Colony crawlspace this often means contaminated soil as well, since most of those houses have no vapour barrier. We vacuum and clean the affected area.
We will be clear about where our work stops. We remove contaminated insulation. We do not install replacement insulation and we do not do wood repair or structural work, because those require a contractor license we do not hold. On century-old properties there is often genuine sub-floor repair needed, and we would rather hand you to someone licensed for it than blur that line.
Rodent pressure across Anaheim
The Colony and the older neighbourhoods around downtown produce the most complex jobs in the city, because the combination of mature fruit trees and hundred-year-old raised foundations gives you both species and two separate spaces to clear. Those are also the jobs where doing it properly matters most, since the crawlspace sits directly under the living floor.
West and central Anaheim run heavy on roof rats alone, driven by post-war tracts with open eaves and fifty years of grown-in landscaping. Anaheim Hills sees somewhat fewer structural entries thanks to newer construction, but the canyon edge supplies a steady population and the tile rooflines give them a way in where the eave course was never closed. The Santa Ana River corridor supports Norway rats along its whole length, and properties backing the channel or near Anaheim Coves and Burris Basin frequently have burrow activity at ground level rather than anything in the attic at all.
Questions we actually get asked
We hear something in the ceiling after dark. Rats or squirrels?
Timing settles it quickly. Roof rats are nocturnal and get busy in the first couple of hours after sunset, then again before dawn. Tree squirrels are active in daylight and go quiet overnight. If it starts once the house is quiet in the evening and stops by morning, that is roof rats. If it wakes you at seven and runs through the afternoon, that is squirrels, and the exclusion differs because squirrels chew far larger openings and will enlarge a gap a rat merely slipped through.
Our house is from the 1920s in the Colony. Is the crawlspace or the attic the problem?
Potentially both, and that is the specific thing to check on a house that age. Colony-era properties frequently have Norway rats in the crawlspace and roof rats in the attic at the same time, using entirely different routes. Treating one and assuming you are done is the most common mistake we see on those addresses. We inspect both spaces on any house with a raised foundation, and the trap placement and exclusion work are different for each.
Our neighbour has a huge orange tree that drops fruit everywhere. Is that our problem?
It is contributing, and it is worth a friendly conversation, but it does not determine whether rats live in your house. Food supply sets how many rats are in the neighbourhood. Your roofline sets whether they get into your attic. You cannot control the tree next door, but a properly closed eave, sound vent screens and collared plumbing penetrations keep them out regardless of how many are moving through. Clearing fallen fruit on your own side and cutting back anything within three feet of your roof both help materially.
The rest of what we do in Anaheim
Rats are rarely the only thing that found the opening, and on older Anaheim properties they are often not even the largest thing. These are the services most often paired with rodent work here.
Licensed for the work we advertise, and clear about the rest
Wildlife control, structural pest control and construction are three separate licenses in California. Plenty of companies blur that line. We would rather tell you exactly where ours sits.
- Wildlife trapping and exclusion — this is us. Tri County Trappers operates under California Department of Fish and Wildlife Trapping License TP-10188, and every technician on our crew carries their own CDFW trapping license. Not a company license with unlicensed helpers under it. Each one, individually licensed by the State.
- Attic cleanout and decontamination — this is us. Removal, bagging, vacuuming and cleaning of contaminated material. We do not apply pesticides, rodenticides or bait on any job.
- Insulation, wood repair and structural work — not us. Tri County Trappers does not hold a Contractors State License Board license. That work is performed by a licensed contractor. We inspect it, document it and hand over the photographs so nobody starts cold.
- Structural pest control (Branch 2) — not us. If your situation needs it, we say so and point you to a licensed structural pest control operator rather than stretching our own license over it.
General liability, professional liability, workers’ compensation and commercial auto, all current, with limits well above what the State requires of a licensed trapper. Certificates on request, before you let anyone on your roof.
OUR METHOD
No rodenticides. No baits, powders, or treated devices.
We work with live traps and exclusion only — on every job, every time. That eliminates the secondary-poisoning pathway that kills owls, hawks, and the pets that eat poisoned rodents. California Department of Fish and Wildlife Trapping License TP-10188.
What rodent control costs in Anaheim
Rodent work is priced in two parts, because it is genuinely two jobs.
- Sealing the building, $500 to $800 for a standard sized home. Priced by how many repairs it takes to make the property inaccessible, not by how many holes are visible from the driveway.
- Cleaning up what they left, $1,500 to $6,000. Contaminated insulation out, the space sanitised, and new insulation in where it is needed. Square footage is the biggest driver.
Plenty of homes need the first without the second. We will tell you which one yours is, and we will tell you if it only needs sealing. See what all of our work costs, including trapping and gopher removal.
The inspection is free with no conditions, and there is no trip fee if you decide not to go ahead. We can usually be out the same day.
Book a free inspection Call (949) 304-5445
Talk to the owner
Tri County Trappers is owner-operated. You work directly with the owner and our licensed specialists — rat and rodent control in Anaheim is never handed off to an unlicensed subcontractor. Every technician on our crew carries their own CDFW trapping license, the owner reviews every inspection and every completed job, and runs jobs himself. Someone answers every call, seven days a week — call anytime. Free inspection, no obligation, and a clear number before anything starts.
Call (949) 304-5445 Email [email protected]
California Department of Fish and Wildlife Trapping License TP-10188, valid through 6/30/2027, and every technician on our crew carries their own. General liability, professional liability, workers’ compensation and commercial auto coverage — certificates on request. Member, National Wildlife Control Operators Association. 4.9 average rating on Google. We check every trap we set at least once every 24 hours. Where 14 CCR § 465.5(g)(2) applies it requires traps to be visited at least once daily — we hold to a rolling 24-hour interval, which is stricter than the rule. Payment plans available on larger jobs.
Book a free inspection
Pick an arrival window and it goes straight onto our schedule. You get a written report of what we found either way — and if you don’t have a problem worth paying to fix, we’ll tell you that.
No payment is taken to book an inspection. California Department of Fish and Wildlife Trapping License TP-10188.