Guides to rodent problems in Los Angeles
What the signs mean, what the work costs, and what the law requires. Written to be useful whether or not you hire anyone.
Start here
If you have heard something in the ceiling and want one page, read warning signs first.
Understand the problem
Why rodent pressure in Los Angeles behaves differently than it does anywhere else.
Why LA has a roof rat problem
Citrus trees, Spanish tile, utility lines, and no off-season. The conditions behind the whole thing.
Read more →Warning signs you have a problem
Scratching, droppings, grease trails, gnaw marks, odor. What each one tells you about species and location.
Read more →Valley seasonal patterns
Why pressure peaks with the rains, and how wildfire displacement changed the pattern.
Read more →Before you decide
The comparisons worth making before you hire anyone, including us.
Exclusion vs. extermination
Trapping removes the animal inside. Exclusion closes the door behind it. Why only one ends the cycle.
Read more →Can you rodent-proof it yourself?
Steel wool and foam are the right idea in the wrong places. Where self-performed work runs out.
Read more →What exclusion costs in LA
Entry point count, roofline access, crawl space conditions, property size. Plus what to ask.
Read more →Rules and rights
For renters, landlords, and anyone with a compliance deadline.
Why we publish this
A rodent problem is a bad time to be learning the vocabulary. People call after weeks of scratching, having already bought foam at the hardware store, unsure whether what they are dealing with is a mouse, a roof rat, or something in the crawl space.
These pages exist so that conversation starts further along. Several of them will talk you out of hiring anyone, and that is fine. The DIY guide explains what self-performed sealing genuinely accomplishes. The cost guide gives you questions to ask any company, not just us.
If you read one of these and decide the job is smaller than you feared, that is a good outcome.
Looking for the work itself rather than the background? The services section lists all fifteen.
Read enough? Book the inspection.
Tell us your property type and where you first found evidence. You will leave the inspection with a written entry point map, whatever you decide to do next.
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