Exton Pest Control Blog
Flying Ants or Termites in Exton, PA?
Swarmers on an Exton windowsill are not always ants. Learn how the EPA tells termites from flying ants, what to check on older homes, and when to schedule an inspection.
Published August 24, 2026 · Exton Pest Control
What are those winged insects on the windowsill?
A small cloud of winged insects inside an Exton home is easy to dismiss as "flying ants," especially in neighborhoods with older timber like Marchwood and Main Street at Exton. Some of those insects are swarming ants. Some are subterranean termites leaving a colony that has already been feeding on the structure.
A lot of Exton homeowners find winged insects on a windowsill and figure they are just flying ants. Do not vacuum and forget. Collect a few on tape or in a bag. It is easier to tell them apart now than to guess later.
The EPA termite identification page is written for homeowners who need to tell swarmers apart and then decide on inspection and treatment.
How do you tell a termite swarmer from a flying ant?
Use the body, not the panic:
- Waist: Termites are thick through the middle. Ants have a pinched waist.
- Antennae: Termites are straight. Ants are elbowed.
- Wings: Termite wings are about equal in size. Ant wings are uneven, with larger fronts.
Discarded wings in a pile on a sill or near a light fixture are a classic termite clue. Ants usually do not leave a neat wing dump after a short indoor swarm.
Mud tubes on foundation walls, hollow-sounding trim, and bubbling paint over damp wood are follow-up signs. Termites can feed for a long time before anyone sees a swarm.
What should Exton homeowners check around the foundation?
Keep soil, mulch, and firewood off siding. Fix grading so water does not sit against the cellar wall. The EPA also points to clogged gutters, wood debris, and untreated openings where utilities enter the wall.
A swarm after rain does not prove the colony is new. It often means an existing colony produced reproductives. Treating the windowsill with household spray does nothing to the colony in the soil.
When should you schedule a termite inspection?
Schedule one if you found equal-sized wings, mud tubes, or damaged wood near the sill plate. Our termite control inspections look at the structure, not just the room where the swarm landed.
If the insects have pinched waists and kitchen trails, they are ants. Start with Summer Ant Trails in Exton, PA Kitchens instead of a termite treatment.
Saw swarmers inside this month? Call now at 610-840-1142 or get your free estimate.
Sources
“Learn the signs of an infestation, differentiate termites from ants, prevent swarms, and choose safe effective pesticides for barriers and other treatments.”
— U.S. EPA
Need help with pests in Exton, PA?
If this sounds familiar around your home, our local team can inspect, treat, and help keep pests from coming back across Exton, PA.