Wasp Nest in a Cavity Wall – How Professionals Treat Hidden Nests in Wix

Where an extension or conservatory meets the original house there is often a hidden gap, and the low walls and sills around it make a sheltered, dry home for a colony.

Where old and new meet

Every extension has a seam. Where the new wall joins the old one, builders fit flashing, cover strips and sealant, and over the years these move and weather. Behind them there can be a narrow void that runs up the join, and at the base a conservatory dwarf wall may have its own cavity.

A queen exploring in spring will crawl along these lines testing for openings. A gap behind a cover strip, a split in sealant at the foot of a frame, or an unfilled slot under a sill is all she needs. Once inside, she has a dry space with the warmth of two buildings around it.

Because conservatories get the sun, the walls around them are warm early in the year, which can encourage activity from late April.

Conservatory roofs add a further complication. Where a polycarbonate or glass roof meets the house wall, a flashing strip covers the join, and the space beneath it can be quite deep. If wasps are going in at the top of the conservatory, the cavity of the house wall above may be the real destination.

Signs to look for

Check the extension and its surroundings on a bright, warm day, standing back from any activity.

• Wasps landing at the vertical join and slipping behind a trim.
• A bead of sealant that has dried, cracked or pulled away.
• A gap beneath the sill or at the foot of a frame.
• Wasps gathering on the glass inside the conservatory, especially at the top.
• A hum in the dwarf wall or in the wall between the conservatory and the house.

Note whether the traffic is at ground level, mid height or near the roof. That tells the technician where to begin looking.

It is worth checking the inside as well. Look along the top of the glazing bars and the ledge where the conservatory meets the house. Dead or dazed wasps on the ledge are a sign that live ones are getting in from somewhere nearby. Do not remove cover strips or poke around the join to find out; leave the investigation to the technician.

Wasps inside the conservatory

A conservatory with a nest nearby soon becomes a trap. Wasps that wander in cannot find their way out through glass and spend hours circling the panes. In summer the room is hot, and they can become agitated.

Keep the doors shut between the conservatory and the house. Open a roof vent or a door to the garden, away from the nest side, so that wasps can leave. Do not sit in the room until you are sure it is clear.

If a wasp lands on you, stay still or move slowly. Swatting is the commonest reason for being stung. Do not use sprays in a closed room; the fumes are unpleasant and they do not help with the nest.

Plants are a common casualty. Many conservatories hold pots, cuttings and seedlings, and wasps are drawn to sweet sap and flowers. If wasps are already coming in, move delicate plants to the house for now, and keep the watering to the early morning, when wasps are least active. Do not spray plants with sweet solutions while the nest is active.

Treatment and access

The technician treats the nest through the entry point you have identified. Tell the booking team what the extension is made of, where the entrance is in relation to the glass, and whether there is a flat or pitched roof above it. If a ladder is needed, the technician will judge whether it is safe.

The fixed price with Wasp Nest Removal Essex is £90 per nest, one visit guaranteed, plus £35 per extra nest on the property. The technician is fully insured and covers Wix and nearby villages. The business is fully insured and handles domestic and commercial jobs.

Mention any allergy in the household when you book.

If the conservatory is used as a dining room, a play space or a home office, say so. The technician may suggest keeping people out of the room during the visit, and it is easier to plan that in advance than to improvise on the day. A note about any electrical equipment near the nest wall is useful as well.

Sealing the seam afterwards

When the wasps have gone, ask a builder to renew the sealant and any cover strips on the join, and to close gaps at the foot of the frame. Ask whether the abandoned nest can be taken down. If you rent, check the tenancy agreement for who deals with repairs.

Diarise a spring inspection of the seam. It is a line that weathers constantly, and a few minutes with a torch and a camera each year is enough to catch a new opening. The number to ring is 01245 327274, or complete the online booking form on the contact page.

Consider asking whoever repairs the seam to check the roof flashing and the base of the frames at the same time, so that one visit covers all the weak points. A conservatory has many joins, and sealing them together is more efficient than doing it piecemeal.

Use of the room in the meantime

If the conservatory is part of your daily life, plan around it. Move plants, food and drinks to the house. Do not leave the doors open to the garden on the nest side. Keep a note of how many wasps you find in the room each day, because it helps the technician to judge how active the colony is.

Frequently asked questions

More wasp advice for Wix