Northeast Exterminators

Pest Library

Common Pests in Philadelphia and Pennsylvania

The pests we see most often in Philadelphia homes and businesses, and when they are most active.

Need it handled? See our Rodent Control service

Philadelphia's dense rowhome blocks, older housing and humid summers make it home to a familiar set of pests. Here are the ones we treat most, with links to the service for each.

Mice and rats

The most common call in the city. Mice move between attached homes through shared walls and basements, and they move indoors in large numbers each fall.

See Rodent Control

Cockroaches

German cockroaches thrive in kitchens and bathrooms, especially in apartments and older buildings with shared plumbing.

See Ant & Roach Control

Ants

Pavement ants and carpenter ants are most active in spring and summer, often coming in along foundations and around windows.

See Ant & Roach Control

Bed bugs

Bed bugs travel in luggage, furniture and clothing, and spread between units in apartment buildings. They are active year round.

See Bed Bug Treatment

Termites

Eastern subterranean termites are found throughout Pennsylvania and swarm in spring. Older homes with wood porches and damp basements are at higher risk.

See Termite Control

Wildlife

Raccoons, squirrels and birds get into attics and chimneys, especially in late winter and spring when they look for nesting sites.

See Wildlife Removal

Mosquitoes

Mosquitoes breed in standing water in planters, gutters and low spots, and peak from June through September.

See Mosquito Control

When pests are most active

PestPeak season
Mice and ratsFall and winter
CockroachesYear round, worse in summer
AntsSpring and summer
Bed bugsYear round
TermitesSpring swarms, active year round
WildlifeLate winter and spring
MosquitoesJune through September

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