Home/Service Areas/Ontario
- Up the 71 and across the 60
Rodent Control in Ontario
Ontario is a working city, and its rodents work too. Our rodent control in Ontario CA covers rats and mice in homes, restaurants, and warehouses, and we finish the job by sealing the building rather than baiting it.
- Licensed, bonded and insured
- Sealed out, not poisoned
- Homes, restaurants and warehouses
- Open 7am to 11pm
Ontario mixes building types more than most cities we cover: 1920s bungalows on raised foundations near Euclid Avenue, restaurant rows on Mountain Avenue, and warehouses out by the airport. The rodents are the same two species everywhere. The buildings are not, and that is what the inspection sorts out.
Why Ontario gets rodents at the ground and in the roof
Ontario has four rodent stories, and which one you are in depends on your address.
- The logistics corridor. The warehouses along the 10, the 15, and the airport approach move freight around the clock. Pallets, rail spurs, roll up doors left open for loading, and drainage basins between the buildings can feed Norway rats at ground level.
- Older housing near downtown. Many of the neighborhoods around Euclid Avenue have raised foundations, crawl spaces, detached garages, and decades of tree growth. Norway rats burrow under the foundation and roof rats use the trees.
- Restaurant strips. Holt Boulevard, Mountain Avenue, and the centers around Ontario Mills are lined with food businesses. A shared dumpster enclosure and a common attic over a row of tenants make one unit's problem the whole strip's problem.
- New tracts on the south side. Grading across the former dairy land pushes rodents off open ground toward the finished homes next door.
What to check first in Ontario: activity at floor level as well as in the ceiling. Burrows along a foundation, droppings behind a dock plate or under a sink, and rub marks along a slab edge point to Norway rats, and that fix starts at the ground. Roof rats still use the trees and rooflines, so the inspection covers both.
Signs of rodents in an Ontario home or business
- Noise below you, not above you. Scratching under the floor or inside a lower wall is the crawl space signature. Ceiling noise happens here too, but less often.
- Holes in the dirt. A burrow entrance two to four inches across beside a foundation, a dumpster pad, or a planter is Norway rat work. Fresh dirt kicked out means it is in use.
- Droppings where food moves. Behind a cook line, under a dock plate, along a pallet rack, or under the kitchen sink. Rat droppings run about half an inch. Mouse droppings are closer to a grain of rice.
- Greasy rub marks at floor level. The same route every night leaves a dark smear along a slab edge, a pipe, or the base of a wall.
How we stop rodents at the source
Order is everything. Trap without sealing and the building refills. Seal without trapping and you lock rodents inside a wall.
- Inspect. Crawl space or slab edge, roofline, exterior, and for a business the docks and back of house. Every entry point mapped and photographed.
- Remove. Snap traps in tamper resistant housings on the runways we found, until activity stops.
- Seal. Hardware cloth, steel mesh, sealed vent screens, and steel door sweeps on every gap. Rodents chew wood, foam, and rubber. They do not get through steel.
- Clean. Droppings, nesting, and soiled insulation out, surfaces sanitized, odor treated.
- Verify. We come back, check the seal and the traps, and only then close the job.
The sealing work is described in full on our rodent proofing page. If you have an active infestation in the house right now, start with rat removal.
Rodent control for Ontario businesses
Ontario carries a large share of the restaurants and warehouses in our service area, so this page covers both. Restaurants tend to call when a health inspection is coming or a customer saw something. Warehouses tend to call when an audit flags droppings or a rodent chews through a load.
- Restaurants. Discreet service scheduled around your hours, and a written report you can show a health inspector. If a health inspection is on the calendar, call during open hours and we will tell you honestly what scheduling looks like.
- Warehouses and logistics. Dock door seals, roll up door gaps, conduit and pipe penetrations, and drainage openings are the usual entry points.
- Documentation. A written inspection report and quote you can keep for an auditor, a landlord, or a franchise inspection.
The full program, including the recurring D.A.R.T. (Drive Away Rodent Traffic) maintenance option, lives on our commercial rodent control page.
Our no poison approach
In Ontario the case against rodenticide is a business case as much as an environmental one. A poisoned rat in a restaurant dies inside the wall behind the walk in cooler, and the smell arrives on a Friday night. In a warehouse, bait boxes along the fence keep the rats fed for years while the dock door gap never gets fixed. At home, secondary poisoning reaches the family dog and the owls that hunt the basins between the warehouses.
Sealing is finished on the last visit. Bait never is.
What rodent control costs in Ontario
We do not quote over the phone, and the range in Ontario is wide because the buildings vary so much. A slab tract home with one roofline is a small job. A raised foundation house with a full perimeter to screen is a bigger one. A warehouse is priced on dock doors and penetrations. The inspection is free and the written quote is the number you pay.
Local vector control district. Ontario is served by the West Valley Mosquito and Vector Control District. The district office is on Locust Street in Ontario. Its technicians inspect the outside of a property for rodents and entry points and trap seasonally, a fair first call for advice. Indoor trapping, steel sealing and attic cleanup are private work, which is where we come in. Their number is (909) 635 0307.
Free Ontario inspection
We find the entry points and give you a written plan. No cost, no obligation. Se habla español.
Popular in Ontario
Serving Ontario from next door
A real person answers from 7am to 11pm every day at our Chino Hills office, in English or Spanish. Tell us what you found and where.
- Warranty
Every sealing job comes with a warranty
Every home we rodent proof and seal gets a warranty on that work. Ask us for the terms at your free inspection.
Frequently asked, locally
How do you get to Ontario from your office?
A straight run up the 71 and across the 60. Our office is on Pipeline Avenue in Chino Hills, close enough that coming back to check traps is routine.
We run a warehouse near the airport. Is that something you handle?
Yes. We inspect dock doors, roll up doors, conduit penetrations, and drainage openings, trap the current population, seal the envelope with steel, and give you a written report and quote. If your current vendor runs a bait route around the fence and the rats keep coming, that is the situation we replace.
My restaurant has a health inspection coming. Can you come quickly?
Urgent inspections are available for restaurants and other businesses, and a real person answers from 7am to 11pm every day. Call, tell us the date, and we will give you an honest answer about scheduling. We are not an overnight operation.
Our house is older, near downtown. Why are the rats under the floor instead of in the attic?
Raised foundations. The older homes around Euclid Avenue sit on a crawl space with vents around the perimeter, and Norway rats burrow under the stem wall or push through a torn vent screen. The inspection starts under the house, not on the roof.
Do you handle cockroaches or termites while you are here?
No. We are rodent specialists, which means rats, mice, exclusion, and the cleanup that follows. We do not treat insects, termites, bed bugs, cockroaches, or mosquitoes. A restaurant that needs both needs a general pest company for the insects and us for the rodents.
Other cities we serve
Ontario is one of 19 cities we cover from Chino Hills. This page is part of our wider rodent control in Chino Hills service, and the full list lives on our service areas page.