Once a year is the baseline for Southern California — but several situations call for more. Here's how to set the right cadence for your home.
"How often do I actually need this?" is a fair question after a first inspection — nobody wants to pay for something they don't need, and nobody wants to skip something that would've caught a problem early. For most Southern California homes the answer is simple: once a year. But a few situations call for more, and it's worth knowing which bucket you're in.
The Baseline: Annual
An annual inspection is the standard recommendation, and the reasoning is straightforward. Termites can feed undetected for years before anything visible shows up — our post on how long a house can have termites undetected covers that hidden window. An annual check is designed to catch activity inside that window, before frass, a swarm, or damage announces it. Southern California's mild climate means there's no true off-season, so activity can establish any time of year, which is exactly why a yearly rhythm works better than waiting for a sign.
When to Go More Often
| Situation | Suggested cadence |
|---|---|
| Older home (pre-1990s), original wood | Annual, without fail |
| Coastal or marine-layer neighborhood | Annual — higher drywood pressure |
| Prior termite activity or treatment | Annual, plus honor any warranty re-inspection |
| Active warranty (subterranean barrier) | Per the warranty (often annual, required to stay valid) |
| Buying or selling a home | At the transaction (WDO report), regardless of last check |
Homes with a history of activity, older housing stock, or coastal exposure sit at the higher-risk end and benefit most from not letting the annual slip. If you're on a renewable warranty, the annual inspection usually isn't optional — it's what keeps the coverage in force.
The Real Estate Trigger
Independent of your annual rhythm, a home sale triggers its own inspection: the WDO report escrow and lenders rely on. That's a separate, transaction-specific step — see WDO inspection for a home sale — and it happens whenever the home changes hands, even if you were just inspected.
Why Not "Only When I See Something"
Waiting for a visible sign is the most common approach and the most expensive one. By the time frass or a swarm shows up, the colony has usually had a multi-year head start, and the treatment-plus-repair bill scales with how long it ran. An annual inspection is cheap insurance against that curve — the case we make in why annual termite inspections save you thousands.
The Practical Answer
For most homeowners: book it once a year and keep it on the calendar. If your home is older, coastal, or has a history, treat the annual as non-negotiable. And any time you buy or sell, expect a separate WDO inspection as part of the deal. Our free inspection is the easy way to set that baseline — no obligation, and it tells you exactly where your home stands.