Most homes should get a professional termite inspection once a year. That annual baseline is the standard recommendation across the pest control industry, and it applies even if your home has never had termites. Termite damage is slow but relentless, and colonies can feed on a structure for months or years before you notice anything wrong. Annual inspections catch problems early enough to avoid serious structural repair costs.
When Annual Isn’t Enough
Several factors can push the recommended schedule to every six months. If your home has had termites before, if a neighbor is dealing with an active infestation, or if your property sits in an area with established termite colonies and dense tree cover, an annual check may not be frequent enough. Homes with persistent moisture problems, like poor drainage, clogged gutters, or damp crawl spaces, also attract termites more aggressively and benefit from twice-yearly inspections.
Geography matters too. Warmer, more humid climates create ideal breeding and foraging conditions for termites year-round. If you live in the southern United States or coastal areas where subterranean termites are especially active, lean toward the more frequent end of the schedule. Properties with heavy landscaping, wood mulch against the foundation, or stacked firewood nearby carry extra risk as well.
A simple way to think about it:
- No known issues, low-risk area: once a year
- High-risk area or dense landscaping: every 6 to 12 months
- Past termite history: every 6 to 12 months
- Active infestation nearby: every 6 months
After Treatment, Keep Inspecting
If your home has already been treated for termites, you still need regular inspections. Liquid termiticides applied to the soil around a foundation typically remain effective for at least five years, but that doesn’t guarantee termites won’t find another way in. An annual inspection is the only reliable way to confirm that the treatment barrier is still working and that no new entry points have opened up.
Homes with bait station systems follow a different rhythm. Bait stations need to be checked on a set schedule, often quarterly, to see whether termites have found the stations and to replace bait as needed. When you sign up for a baiting program, make sure you understand the monitoring schedule your pest control company follows and that you receive updates after every check.
Signs That Call for an Immediate Inspection
Don’t wait for your next scheduled visit if you spot any of these warning signs. Each one suggests termites may already be active in or near your home.
- Mud tubes: pencil-width trails of dried mud running up foundation walls, support piers, or plumbing pipes. These are the tunnels subterranean termites build to travel between soil and wood.
- Swarmers indoors: winged termites emerging from walls, ceilings, or floors, or piles of small shed wings on windowsills. A few swarmers near an open door could be strays, but large numbers inside the home point to a colony in the structure.
- Swarmers outside near the foundation: even if they haven’t made it indoors, swarmers launching from soil right next to your home’s foundation are a red flag.
- Pinhole-sized mud spots: tiny dried mud dots on interior drywall or ceilings, where termites have sealed over exit holes.
- Sunken or wavy lines in paint or wallpaper: narrow, winding depressions that trace the feeding galleries beneath the surface.
- Small six-sided pellets: uniform, seed-like droppings that accumulate on floors or countertops. These are a hallmark of drywood termites, a species that lives entirely inside wood rather than in the soil.
- Structural sagging: a soft or bouncy floor, a door frame that crumbles when you push on it, or a visibly sagging roofline all suggest damage that has been progressing undetected.
Any of these warrants a call to a pest professional right away, regardless of when your last inspection took place.
What Happens During an Inspection
A professional termite inspection typically costs between $75 and $300, depending on the size and complexity of your home. The inspector works through a systematic checklist that covers far more than what you can see on your own.
Outside, they’ll examine the foundation for cracks and gaps around plumbing lines, check deck posts, porch supports, fences, and any stored lumber. Mulch beds, tree stumps, and wooden landscape borders get close attention because they trap moisture right against the structure. Gutters and drainage are evaluated too, since standing water near the foundation is one of the biggest risk factors for subterranean termites.
Inside, the inspection focuses on crawl spaces, basements, and utility rooms. Inspectors look at support beams, floor joists, and subfloor materials for damaged wood and mud tubes. They’ll also check baseboards, door frames, and windowsills on the main floors for subtle signs of feeding.
You can do a basic self-check between professional visits by looking at exterior wood, crawl spaces, and basement walls for mud tubes or soft spots. But only a trained inspector with the right tools can fully evaluate hidden areas behind walls and under insulation. Think of DIY checks as a supplement, not a replacement.
Inspections for Home Buyers
If you’re buying a home, the inspection timeline is tighter. For FHA and VA loans, a termite inspection report (formally called a wood-destroying insect report) is valid for 90 days from the date of the inspection. If your closing gets delayed past that window, you’ll need a new one. Even for conventional loans that don’t require a termite report, getting one before purchase protects you from inheriting an expensive problem. The cost is minor compared to the tens of thousands of dollars termite damage can require in structural repairs.