Rat Control in Corte Madera, CA

Rats are strong climbers and cautious about open ground, so they tend to follow cover: fence lines, hedges, retaining walls, and the tree canopy that shades much of Corte Madera. Roof rats travel along power lines and overhanging branches to reach a roofline, while Norway rats stay lower, burrowing along foundations, under sheds, and near woodpiles. Properties that back onto the open hillside below Ring Mountain Nature Preserve tend to see more outdoor rat activity than homes in the flatter, more built-up parts of town.

On the call, tell us whether the activity is in the attic, the yard, or both, and whether your property borders open space, a fence line shared with a neighbor, or heavy landscaping. That shapes where we start the inspection.

• Norway rats: heavier, burrow at ground level, common near foundations, woodpiles and dense ground cover.
• Roof rats: leaner, excellent climbers, favor attics, palm trees and dense hedges above ground level.
• Both species leave droppings, gnaw marks and grease smears along regular travel routes.
• Both can chew through wiring, irrigation lines and stored materials.

We check the attic, foundation perimeter, fence lines and any dense landscaping for burrows, gnaw marks, droppings and rub marks. Traps and tamper-resistant stations go along the routes we confirm, not just wherever there happens to be space. For an active attic infestation, that usually means the roofline and any tree limbs that overhang the house. For yard activity, that means fence lines, retaining walls and the base of mature trees.

A rat can squeeze through a gap about half an inch wide, roughly the size of a quarter, so the sealing work is more substantial than what a mouse job needs. We close roofline gaps, vent openings and foundation cracks with heavy-gauge hardware cloth and sheet metal that a rat cannot gnaw through. Trimming tree limbs back from the roofline is also worth doing on properties near the preserve, since overhanging branches are one of the most common ways roof rats reach a house. See our rodent exclusion service for the full scope of sealing work.

We return to confirm burrows have stopped showing new activity and that sealed points are holding up. Keeping woodpiles off the ground, trimming vegetation back from the house, and securing compost and trash are the ongoing steps that keep a yard from drawing rats back in. If the smell of a dead rat shows up after treatment, our dead rodent removal and odor control service handles that separately.

Marin County's mild, wet winters keep rats active outdoors for most of the year, unlike colder climates where hard freezes push populations down naturally. That means outdoor burrow activity near the hillside below Ring Mountain Nature Preserve can continue through what would be an off-season for rodent control elsewhere, and a yard that seems quiet in late spring can still see fresh burrowing again once the winter rains return.

Because of that year-round activity, we do not treat rat control as a purely seasonal service. A property with a history of rat activity along a fence line is worth checking even outside the months when calls are heaviest. Pairing an outdoor check with rodent inspection and estimates once a year is a reasonable way to catch a new burrow before it becomes an established route into the house.

Dogs in particular are curious about fresh burrow activity, so outdoor stations are placed and secured with pets in mind, away from digging spots and on a schedule that lets you keep an eye on the area between visits. Tell us about any pets that use the yard regularly so placement accounts for their usual routes.

Rats drawn to loading docks and trash enclosures near Town Center at Corte Madera and The Village Shopping Center sometimes range into nearby residential streets when a commercial property's own controls lapse. If you live within a block or two of either shopping center and notice a sudden increase in outdoor activity, that pattern is worth mentioning. It can point to a source beyond your own property line, one that our commercial rodent control service can help address directly.

A rat problem that has been active for more than a season often leaves a visible network of runs worn into grass or mulch along a fence line, not just a single burrow entrance. Mapping that full network during the inspection, rather than treating only the most obvious hole, is what keeps the treatment from missing a secondary route the rats are still using.