Rodent Management
Rodent Control in Redwood City, CA
101 Exterminators does rodent control in Redwood City the way it has to be done in a city with this much mature tree canopy: exclusion first, then trapping. We are California licensed, SPCB Lic. #9119, and have worked the Peninsula since 2005. Roof rats (Rattus rattus) travel the canopy and fence lines through Roosevelt, Eagle Hill and the blocks around Stafford Park, and they enter high — not at the foundation.
Warning Signs
Signs You Need Rodents Service in Redwood City
Our program combines three components: (1) Exclusion — sealing gaps in foundations, pipe penetrations, vents, and roof eaves using hardware cloth, copper mesh, foam sealant, and sheet metal as appropriate. (2) Trapping — placement and monitoring of snap traps, live traps, and glue boards in active areas. (3) Exterior bait stations — tamper-resistant bait stations positioned along perimeter rodent runways for ongoing population management.
Droppings along walls, in cabinets, behind appliances, or in attic insulation
Gnaw marks on wiring, wood, plastic pipes, or food packaging
Grease marks along walls or baseboards — oil from rodent fur rubbed repeatedly on surfaces
Nesting materials (shredded paper, insulation, fabric) in hidden locations
Scratching or scurrying sounds in walls, ceilings, or under floors at night
Burrows in landscaping, mulch beds, or under concrete slabs
Citrus or avocado fruits with bite marks — a classic roof rat indicator
Pet acting alert at walls or cabinets when no visible cause exists
How It Works
Our Rodents Process in Redwood City
Every job follows the same methodical approach — no shortcuts, no guesswork. Here is what to expect when you work with us in Redwood City.
Inspection & Runway Mapping
We identify gnaw marks, runways, burrows, droppings, and grease trails to map rodent activity throughout the property — interior and exterior.
Exclusion
We seal all discovered entry points with durable materials appropriate to the opening — hardware cloth, copper mesh, sheet metal flashing, or foam sealant for smaller gaps.
Trapping & Bait Placement
Interior snap traps and exterior tamper-resistant bait stations are positioned along active runways. We monitor and service these on a schedule until activity ceases.
Follow-Up & Monitoring
We return to clear traps, replenish bait, check exclusion work, and confirm that the population has been eliminated before closing out the service.
Why 101 Exterminators
Rodents You Can Count On in Redwood City
Exclusion-First Methodology
Without sealing entry points, any rodent removed will simply be replaced by another. We seal the structure before or concurrent with trapping — not as an afterthought.
No Unmonitored Poison Bait Indoors
We do not place loose rodenticide indoors where rodents can carry it to walls and die inaccessibly. Interior work uses traps with daily monitoring during active treatment.
Regional Species Knowledge
Norway rats, roof rats, and deer mice behave differently and require different approaches. We identify the species present before selecting treatment methods.
Sanitation Recommendations
After resolving an infestation, we advise on harborage removal, vegetation management, and food storage to prevent reinfestation — not just a repeat service call.
Common Questions
Rodent Control FAQs for Redwood City
Why do Redwood City rats get into the attic instead of the crawl space?
Because roof rats climb and this city hands them ladders. Mature street trees, backyard fruit trees and the creek canopy let them travel above ground the whole way, so they arrive at the roof and enter at vents, fascia gaps or the corner above the garage door. Crawl-space entry does happen with Norway rats, mostly closer to downtown and the storm-drain network. A good inspection covers both heights.
Will trimming the trees around my Stafford Park block stop roof rats?
Trimming helps and by itself is rarely enough. Cutting branches back a few feet from the roof removes the easiest bridge, but roof rats also use fence tops, cable and utility lines, and vine-covered walls. The step that ends it is sealing the openings they are actually using — vent screens, fascia gaps, the garage header corner. Trim and seal together, because trimming alone just reroutes them.
We hear scratching over the bedroom ceiling at night in our Farm Hill house — what is it?
Night scratching directly over a ceiling in a hillside house like Farm Hill or Canyon is almost always roof rats moving through the attic, since they are nocturnal and get busy around dusk. Mice make lighter, faster sounds and stay closer to walls; squirrels are active in daylight. Look for droppings along the top plate and rub marks at attic penetrations. The identification changes both the trap type and where it goes.
Local Pest Pressure
Common Pests We Treat in Redwood City
Every area has its own pest profile shaped by climate, housing, and geography. These are the pests we see and treat most often in Redwood City — tap any one to learn how to identify it and what treatment involves.
Rodent Control · Redwood City
Free Pest Evaluation in Redwood City
CA licensed and insured. Written estimate before any work begins. Urgent situations in Redwood City are prioritized.