Pest Prevention: Sealing, Moisture, and What Attracts Problems
Pest control is mostly building maintenance. Seal the gaps, fix the moisture, and most problems never start.
Pests need three things: a way in, water, and food. Removing any one of them solves most problems more durably than treatment does.
Exclusion: close the openings
- Seal gaps larger than a quarter inch at pipe, wire, and vent penetrations with copper mesh and sealant
- Install or repair door sweeps — the gap under a door is the most common rodent entry
- Screen crawl space vents, attic vents, and chimney openings
- Repair damaged soffits and fascia
- Cap and screen the dryer vent, while keeping it operable
- Confirm weatherstripping is intact on garage doors
Moisture: remove the water
- Fix leaks under sinks and at hose bibs promptly
- Keep crawl spaces dry with an intact vapor barrier and functional drainage
- Maintain grading and downspout discharge away from the foundation
- Ventilate bathrooms during and after showers
- Keep gutters clear so water does not saturate the ground at the foundation
Termites: what evidence looks like
- Pencil-width mud tubes on foundation walls or piers
- Discarded wings near windows and doors, usually in spring
- Wood that sounds hollow when tapped or gives under a screwdriver
- Bubbling or rippling paint on trim
- Small piles of what looks like sawdust or coffee grounds, which suggests drywood termites or carpenter ants
Termite damage is generally excluded from homeowners insurance because it is considered a maintenance issue. An annual inspection is inexpensive relative to structural repair, and required by lenders in many regions.
Habits that matter
- Store food in sealed containers; clean under appliances periodically
- Take trash out regularly and keep bin lids sealed
- Do not leave pet food out overnight
- Keep vegetation trimmed twelve inches back from siding
- Inspect boxes, plants, and used furniture before bringing them inside
Frequently asked questions
Does homeowners insurance cover termite damage?
Generally no. Termite damage is treated as preventable through maintenance, which is why annual inspections matter.
How often should I have a termite inspection?
Annually in regions with meaningful termite pressure; every two to three years elsewhere. Many lenders require one at purchase.
Are DIY pest treatments effective?
For occasional ants and spiders, often yes. For termites, bed bugs, or a rodent infestation with an established entry point, professional treatment plus exclusion work is more reliable.
