The pests Seattle homes deal with
Carpenter and moisture ants
In the wet Northwest, ants follow moisture into structures: carpenter ants nest in water-damaged wood, and moisture ants colonise damp framing and subfloors. Treating the nest matters, but fixing the leak and replacing the damaged wood is what ends the tenancy. In Seattle, this call begins with a moisture meter pressed to the sill or subfloor: where the reading is high, the wood is softening and the ants are nesting — the repair list that follows is half the treatment. More about ant control.
Carpenter ants
Carpenter ants excavate rather than eat wood: they hollow damp timber into smooth galleries for nesting, and the sawdust-like frass below a window or porch is often the first sign. Finding the parent colony — frequently in a tree, stump or woodpile outside — matters more than treating the satellite nest indoors, and that search is the core of a local inspection. Local practice in Seattle treats the satellite nest as the beginning, not the end: the colony fragment indoors points to a parent nest outside, and inspectors walk the fences, stumps and tree lines until the trail gives it up. More about ant control.
House mice
A house mouse needs a gap the width of a pencil and lives its whole life within a short run of its food — which is why droppings cluster along the same wall lines and behind the same appliances. Programmes combine trapping on those runs with sealing of the entry points, because removing mice while leaving the door open just resets the clock. In Seattle, the inspection reads like a map: droppings behind the stove, rub marks at the garage door corner, a run along one basement wall — the pattern points to the entry, and the entry is what the visit is really for. More about rodent control.
Wasps and yellowjackets
Wasps and yellowjackets build through the summer — paper nests under eaves, ground colonies in lawns, void nests behind siding — and turn defensive by late summer when colonies peak. Finding and treating nests early, while they are small, is the season's recurring theme. By late summer in Seattle, mowing crews and meter readers find the ground nests the hard way; local advice is to flag any nest you spot in spring, when it holds a queen and a handful of workers. More about wasp, hornet & bee removal.
Silverfish and pantry pests
Silverfish and pantry pests are the quiet indoor economy: moisture-loving, clutter-loving, and persistent in older housing stock. Sealed food storage, humidity control and targeted treatment of harbourage areas keep them marginal. In Seattle the older housing stock gives silverfish their favourite map — humid bathrooms, basement storage, undisturbed paper — and moisture control is the lever local providers pull first. More about general pest control.
Bed bugs
The inspection decides everything: live bugs, cast skins and spotting tell the provider how far the infestation has spread beyond the bed — to sofas, baseboards, sometimes neighbouring rooms. Programmes are built room by room from that map, with clutter reduced and laundry bagged, and success is verified at a return visit rather than declared on the day. A Seattle inspection for this pest works outward from the bed in a spiral — seams, frame, headboard, then upholstery and baseboards — because the map of where they are decides the whole programme, room by room. More about bed bug treatment.
Roof rats
Roof rats are climbers first: they travel power lines, fences and overhanging branches, and enter at the roofline — a gap at an eave or vent is an open door. Control pairs exclusion of those entries with trapping along their runs and trimming back the vegetation bridges, because poison alone in an attic treats the symptom and keeps the door open. Seattle roof rats run the fences and the tree canopy, so local exclusion work starts with branches off the roof and every eave and vent screened, before a single trap is set. More about rodent control.
Crickets and earwigs
Crickets, earwigs and similar ground-level invaders build up in mulch, leaf litter and damp foundation zones, then move inside in late summer and during wet spells. They are handled by the exterior barrier, habitat thinning against the foundation, and sealing the gaps at grade. Around Seattle, the surge follows the season's turn: crickets crowd foundation lines and garage doors as nights cool, and the homes that seal and dry their crawlspaces early are the ones that skip the invasion. More about general pest control.
