Raccoon Attic Entry Resolved Through Roof Vent Exclusion – Oakville

Job Overview

Location: Oakville, Ontario
Structure: Detached two-story house with attached garage
Problem: Nighttime wildlife activity reported in attic, consistent with raccoon presence
Service: Raccoon removal and full roofline exclusion
Visits: Two

Summary

We were contacted regarding suspected raccoon activity entering the attic overnight. Our team completed a full roof inspection, identified a roof vent entry point, and implemented a humane, non-lethal removal strategy using one-way doors. Following removal, comprehensive roofline exclusion was completed. A follow-up visit confirmed no further activity and all access points were fully secured.

Background / Property Context

The property is a detached two-story residential home with an asphalt shingle roof, multiple roof vents, plumbing vents, and two chimneys. Mature trees were visible near the roofline, providing potential access routes for climbing wildlife.

Customer Concern

The homeowner reported consistent nighttime noises coming from the attic area, raising concern about wildlife entry and potential damage within the roof structure.

Inspection & Findings

During the initial visit, our technician conducted a full exterior roof inspection. A damaged roof vent was identified as the primary entry point. The condition of the vent opening suggested repeated use. Additional vulnerable openings were observed, including multiple roof vents, a plumbing vent, and chimney flues that were accessible from the roof surface.

Photos taken during the inspection show an unsecured roof vent opening and exposed vent and chimney structures prior to screening.

Cause Analysis

Raccoons commonly access roofs by climbing nearby trees or structural features. Roof vents and chimney openings can become entry points when screens or covers are damaged or missing. Once access is established, raccoons may return repeatedly, particularly when attic spaces provide warmth and shelter.

Treatment / Removal

A humane removal approach was used. One-way doors were installed over the primary roof vent entry point to allow adult raccoons to exit without re-entry. An additional one-way door was installed to accommodate mobile juveniles. This setup allowed the animals to vacate the attic naturally without harm.

The entry area was disinfected following door installation to address contamination at the access point.

Exclusion & Repairs

As part of the approved work, the following exclusion measures were completed:

  • Eight roof vents secured with galvanized steel vent cages
  • One plumbing vent sealed with galvanized steel mesh
  • Two chimneys fitted with galvanized steel chimney screening

Photos show vent and chimney covers securely fastened and flush with the roof surface following installation.

Outcome & Confirmation

At the second visit, the homeowner reported no further wildlife activity. Our technician confirmed the attic remained inactive. All one-way doors were removed, entry points were permanently sealed, and the full exclusion work was reinspected. No additional access points or signs of wildlife activity were found.

Technician Notes

The work was completed over two visits by Andrew. Weather conditions were clear and did not limit roof access. All removal and exclusion work was completed safely and humanely, with final confirmation of successful raccoon exclusion.

This service was completed by our Oakville wildlife team. For wildlife removal inquiries in Oakville, contact 647-560-0992.

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