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. 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.
Home maintenance
How do you keep rats out of a Redwood City home?
Break the routes rats use and close the gaps they find. The county vector district says every neighborhood has at least some rats. In Redwood City, roof rats travel creek trees and old yard trees, Norway rats live near the port, light industry and trash areas, and deer mice come in from the foothill parks on the west side.
Trim trees and vines off the house
Cut back limbs that touch or overhang the roof and pull ivy off walls and fences. Along Redwood Creek and in older yards, those are the roof rat highways.
Close gaps with metal and mortar
Seal openings around pipes, vents, roof-to-wall joints and garage doors with hardware cloth, sheet metal or mortar. Rats chew through foam and plastic.
Check mobile home skirting
In Friendly Acres’ mobile home parks, rodents nest behind damaged or loose skirting. Repair holes and keep the area under the home clear of stored items.
Close up sheds near open space
Homes near Edgewood County Park and the Emerald Lake Hills sit close to deer mouse habitat. Keep shed doors closed, store seed and pet food in metal bins, and clean droppings wet, never dry.
Clear fruit and pet food daily
Pick ripe fruit, rake up windfall and bring pet bowls and bird feeders in at night. Food left out keeps rats close to the house.
When to do it
Trim and seal in late summer and early fall, before the December and January rains push rodents indoors.
Maintenance guidance: UC IPM, Rats
Warning Signs
When to Ask About Rodent Control 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
What to Expect from Rodent Control in Redwood City
Tell us where you hear activity or find droppings, and whether you can see a possible entry point. We can then plan where to check first.
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
Why Choose 101 Exterminators for Rodent Control 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
Schedule Service in Redwood City
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