Ant Control
Updated November 6, 2026
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Safety
Avoid spraying insecticides near food prep surfaces, open flames, or electrical panels, and never mix cleaning products with pesticides. Keep children and pets out of any area where a product has been applied and follow label directions exactly. If anyone experiences dizziness, breathing trouble, or a skin reaction after exposure, move to fresh air and contact a medical professional. Do not spray into wall voids, outlets, or switches, since electricity and chemicals are a hazardous combination.
Before the visit
Before a scheduled visit, leave visible ant trails intact so the technician can trace them, and jot down where activity appears, what time of day it is heaviest, and any recent leaks or weather changes. Clear access to baseboards, under-sink cabinets, the water heater, and the exterior foundation line. Store open food in sealed containers, secure trash lids, and pick up pet bowls. Have notes ready about prior treatments or products used, since some residues can interfere with baiting.
Repair vs replace
Seal cracks, gaps around pipes, and worn weather stripping once activity has been identified and treated, since sealing too early can trap foragers inside or redirect trails to new entry points. Repair dripping faucets, leaking hose bibs, and clogged gutters that keep the foundation damp. Re-caulk tubs and sinks and fix torn window screens after the colony is under control so moisture and access issues do not invite a return.
When to replace
Replace water-damaged or hollow-sounding trim, sill plates, and deck boards that carpenter ants have excavated, since compromised wood keeps attracting colonies even after treatment. Discard pantry items, pet food, and birdseed that ants have reached, and swap out heavily infested mulch or insulation. If firewood or landscape timbers harbor nests, replace them with wood stored off the ground and away from the structure.
Common issues
| Symptom | Likely causes | Safe check | Stop when |
|---|---|---|---|
| Visible ant trails along baseboards, counters, or window sills | A foraging column following a scent line between the nest and a food or water source | Follow the trail at a distance to note entry points without wiping it away, and record where it enters and exits | The trail leads inside a wall, cabinet void, or electrical outlet, or the ants bite or sting when approached |
| Piles of fine soil or debris near baseboards, patio edges, or driveway cracks | Nesting activity at or near the structure, common with pavement ants | Look for tiny soil mounds with a single opening and observe whether ants carry food or larvae back to them | Mounds appear indoors, spread quickly across the property, or sit beside wiring, gas lines, or foundation vents |
| Ants swarming around pet food, trash cans, or kitchen surfaces | Easy access to food residue, unsealed containers, or overflowing bins | Seal food in airtight containers and wipe surfaces with plain soap and water, avoiding broad pesticide sprays near food | Ants keep returning after food sources are removed, or they appear inside appliances or pantries in large numbers |
| Winged ants indoors, especially near windows or light fixtures | A mature colony releasing swarmers, which can indicate a nest inside or directly against the structure | Compare the insects closely: ants have elbowed antennae and narrow pinched waists, while termites have straight antennae and uniform bodies | Swarms appear repeatedly, piles of discarded wings collect on sills, or the insects cannot be confidently identified |
| Ants gathering near sinks, dishwashers, or bathroom fixtures | Moisture-seeking behavior driven by leaks, condensation, or damp wood | Check under sinks for drips, soft wood, or water stains, and dry out the area while watching for renewed activity | Wood sounds hollow or crumbles when pressed, or ants emerge from wall voids whenever water runs |
| Sawdust-like debris below window frames, door frames, or deck boards | Carpenter ant excavation in damp or decaying wood | Tap suspected wood and listen for hollow spots, and collect a small sample of the debris for identification | Debris keeps reappearing after cleanup, wood is structurally soft, or ants are seen inside wall or ceiling voids |
| Recurring ant activity every spring or after heavy rain | An established colony on or under the property that survives surface treatments | Map where activity reappears each season and note nearby mulch beds, firewood stacks, or tree limbs touching the structure | Activity returns within days of cleaning and sealing, or nests appear in multiple locations at once |