Rodent Control in California & Nevada
Professional rodent control gets rid of mice and rats by combining a thorough inspection, sealing the entry points they use to get inside, and targeted trapping or enclosed baiting, followed by year-round monitoring so they do not come back. Since 1950, Clark Pest Control has used this approach to help homeowners across California and Nevada get rid of rodents fast, with a free inspection and a satisfaction guarantee.
Schedule a free rodent inspection or call (800) 882-0374.
How to Tell If You Have Rodents
Most people discover rodents by the signs they leave behind long before they see a live mouse or rat. Watch for these common clues:
- Dark, pellet-shaped droppings along walls, in cabinets, or near food
- Gnaw marks on wood, wiring, food packaging, or insulation
- Scratching or scurrying sounds in walls, ceilings, or the attic at night
- Greasy rub marks along baseboards and beams where rodents travel
- Nests of shredded paper, fabric, or insulation in quiet, sheltered spots
- A musky odor that grows stronger in heavier or long-term infestations
Knowing which rodent you have matters, because each one behaves differently. The three we treat most across California and Nevada are:
- House mice (Mus musculus) nest indoors, nibble constantly, and slip through gaps as small as a quarter-inch.
- Roof rats (Rattus rattus) climb well and nest high, in attics, rafters, trees, and dense vines.
- Norway rats (Rattus norvegicus) stay low, burrowing near foundations, woodpiles, and crawl spaces.
Those small gaps are the whole problem: a rat can pass through a half-inch opening and a mouse through a quarter-inch, which makes every entry point hard to find on your own. Clark technicians inspect your home, identify the species, and locate every way in. For more background, see the UC IPM guidance on rats and the house mouse. If you notice any of these signs, request a free rodent inspection and we will confirm what you are dealing with.
Get Rid of Rodents Fast - and Keep Them from Coming Back
Rodents breed quickly and are tough to remove for good without sealing the way they got in, so we treat the active problem and the entry points together. Our residential rodent services include:
- Free inspections to confirm the rodent and find every entry point
- Rodent exclusion (rodent-proofing) that seals the half-inch and quarter-inch gaps rodents use, so they cannot get back in
- Trapping and mechanical removal, which we favor wherever possible
- Enclosed, tamper-resistant bait stations where baiting is the right tool
- Extermination and eradication of active mouse and rat infestations
- Year-Round Pest-Away monitoring to help keep rodents from returning
Looking for more ways to protect your home? Explore our other services: Termite Control, Ant Control, Spider Control, Bird Control, and Year-Round Pest-Away. Or see all Pest Control Services.
How Our Rodent Control Works
Rodents are smart and cautious, often avoiding new traps and baits for days, which is why a one-and-done approach rarely works. We follow a clear process instead:
- Free inspection. We confirm the species, find every entry point, and assess how far the infestation has spread.
- Custom plan and quote. Your technician recommends the right combination of methods for your home and gives you an exact quote before any work begins.
- Exclusion. We seal entry points so new rodents cannot get in, which is the step that makes the results last.
- Removal. We remove the active infestation using trapping or enclosed bait stations, matched to your situation.
- Follow-up and prevention. We confirm the rodents are gone, and Year-Round Pest-Away keeps watch so they do not return.
Our methods
- Exclusion seals the gaps rodents use to enter, addressing the root cause rather than just the symptom.
- Trapping is a clean, mechanical way to remove rodents and is our preferred tool wherever it fits.
- Enclosed bait stations are tamper-resistant and placed to reduce risk to children, pets, and wildlife.
California restricts many rodenticides, so professional, IPM-based exclusion and trapping matter more than ever, and they are safer and more effective than store-bought poison. For typical homes, we rely on inspection, exclusion, trapping, and enclosed baiting rather than fumigation.
Caught a rodent problem early? Acting fast keeps a few rodents from becoming an infestation. Schedule your free rodent inspection.
Why Choose Clark for Rodent Control?
Clark Pest Control has been a California company since 1950, with more than 30 branches across California and Nevada and licensed technicians who know how local roof rats, Norway rats, and house mice behave. Every service is backed by our customer satisfaction guarantee, and our IPM-based approach focuses on keeping rodents out for the long term, not just clearing them once.
Certifications: GreenPro certified (learn more), Licensed and Insured
How to Prepare for Your Rodent Service
A little preparation helps your technician inspect, seal, and treat more effectively. Before your visit:
- Clear access to attics, garages, crawl spaces, and the areas under sinks.
- Store food and pet food in sealed, rodent-proof containers.
- Pick up clutter indoors and move woodpiles or debris away from the foundation.
- Secure trash and recycling in containers with tight lids.
One important rule: do not set out your own poison or baits before the visit. California restricts many rodenticides, and DIY poison can drive rodents into walls to die or interfere with our plan. Talk to your technician first.
How to Prevent Rodents
Once rodents are gone, a few habits keep them from coming back:
- Seal gaps a quarter-inch or larger, add door sweeps, and screen vents and weep holes with metal mesh
- Trim tree limbs and vines back from the roofline to cut off roof rat access
- Store food, pet food, and birdseed in sealed containers
- Keep woodpiles, debris, and dense ground cover away from the house
- Manage trash and clean up fallen fruit or spilled seed in the yard
Pair these steps with Year-Round Pest-Away for ongoing protection.
Where We Provide Rodent Control
We provide rodent control for homes across California and Nevada through 30+ local branches. Rodent pressure rises as cooler weather pushes roof rats, Norway rats, and house mice indoors, so a fast local response keeps a few rodents from becoming an infestation. Here are a few of the areas we cover:
Frequently Asked Questions About Rodent Control
How much does rodent control cost?
Rodent control pricing depends on the size of your home, the rodent species, and how far the infestation has spread. That is why we start with a free inspection: once we know exactly what we are dealing with, we give you a clear, no-obligation quote before any work begins.
Do you treat both mice and rats?
Yes. We control house mice, roof rats, and Norway rats, the three rodents we see most across California and Nevada. We identify the species first, because mice and rats nest and travel differently, then match the treatment to the problem.
What is rodent exclusion (rodent-proofing)?
Rodent exclusion means sealing the gaps rodents use to get inside. Rats can squeeze through a half-inch opening and mice through a quarter-inch, so we inspect your home, find every entry point, and seal them to stop reinfestation. Exclusion is what keeps rodents out for good, not just gone for now.
Are your rodent treatments safe for kids and pets?
Yes. We favor mechanical methods like trapping and exclusion, and where we use bait we place it in enclosed, tamper-resistant stations. Our approach follows integrated pest management (IPM) and GreenPro standards to keep your family and pets in mind.
Do you offer same-day or emergency rodent service?
Often, yes. Same-day or next-day service is frequently available depending on your branch and the time of year. Call us and we will get a technician scheduled as soon as possible.
What rodents are common in California and Nevada?
The three we treat most are the house mouse (Mus musculus), the roof rat (Rattus rattus), and the Norway rat (Rattus norvegicus). Roof rats climb and nest high in attics and trees, Norway rats burrow low near foundations, and house mice slip through gaps as small as a quarter-inch.
Will the rodents come back after treatment?
Our goal is to keep them from returning. We seal entry points so new rodents cannot get in, and our Pest-Away year-round program keeps watch so rodents do not become a repeat problem. Every rodent service is also backed by our satisfaction guarantee.
How long does a rodent treatment take?
Most visits take one to two hours, depending on how widespread the infestation is.
Do you offer rodent control near me?
Yes. With more than 30 branches across California and Nevada, we provide rodent inspections, exclusion, and treatment close to home. Find your nearest Clark branch on our locations page.
What Our Customers Say
"I am so happy I went with Clark Pest Control. My technician for my residence is a great guy named Rowdy. He has listened to all of my concerns, and I really appreciate him coming out when I needed him the most. Between hornets and my long-time resident (a rat), it has all been taken care of. Thank you so much, Rowdy, for your above and beyond service."
Kathrine I., Redding, CA
100% Satisfaction Guaranteed We guarantee your service will be done right every time. If it isn't, let us know, and we will make it right. Return visits are always free on recurring services. |  |
Do not share your home with rodents. Call (800) 882-0374 or schedule your free rodent inspection online. Prefer email? Contact us here.
Last updated: June 2026