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Wasps: A Typical Nest Call in Ottawa

Category: Holiday

Published: July 12, 2026

By: Wayne’s Pest Extermination

What I Walked Into

A typical late-summer wasp call begins when a homeowner notices repeated activity around one part of the house.

The wasps may be flying around an entrance, roofline, deck or shed. In some situations, the homeowner cannot see a nest but notices wasps repeatedly entering the same small opening.

When I arrive, my first priority is to understand where the activity is happening and how close it is to areas regularly used by people or pets.

The Problem

Wasp activity becomes a greater concern when it develops close to:

Doors and frequently used entrances

Decks and patios

Children’s play areas

Walkways

Outdoor seating

Sheds and garages

Rooflines and soffits

Wall openings

Waste and recycling areas

Repeated flight activity around one opening may indicate a concealed nest. Disturbing that area without understanding the situation can cause defensive behaviour.

The Process

I begin by observing the wasps from a safe distance. Their flight patterns can help identify where they are gathering, entering or leaving.

Next, I inspect accessible eaves, soffits, wall openings, sheds, decks and other protected areas where a nest may be located. I also consider the nest’s accessibility and how close it is to people, pets and everyday activity.

Once the active area is identified, I recommend a wasp-control plan suited to the location and property conditions. Homeowners should avoid sealing an opening while wasps are actively using it because this may cause them to search for another route.

The Outcome

The service gives the homeowner a clearer understanding of where the wasps are active and why the location requires attention.

After the active concern is addressed, I explain which areas should be monitored and when exterior gaps may need maintenance. Conditions around waste, food and outdoor gathering areas may also require attention.

The homeowner should continue watching the affected area because changes in activity can help show whether further assessment is needed.

DIY Advice I Shared

Here are a few wasp prevention tips I shared with the homeowner:

Keep outdoor food and sweet drinks covered.

Rinse recycling bins and garbage containers regularly.

Seal small exterior gaps where possible.

Check soffits, rooflines, sheds and deck areas for early activity.

Avoid disturbing a nest or active flight path.

Keep fallen fruit and food scraps cleaned up.

Watch for repeated wasp activity in the same location.

Be careful around wall gaps, vents and trim where wasps may enter.

"It's brighter than before!"

— Megan

Professional Insight

A visible nest can be straightforward to locate, but concealed activity requires careful observation.

When wasps repeatedly enter a soffit, wall opening or roofline gap, the entrance may only be the route to a protected nest. Blocking it without addressing the activity may make the situation harder to manage.

Professional assessment is especially important when a nest is close to an entrance or when someone at the property has a known allergy to stings.