Attic Pest Inspection & Prevention

Rodents, squirrels, raccoons, and birds find their way into Lower Mainland attics year-round. Once inside, they contaminate insulation, chew wiring, and create health hazards. We inspect for signs of pest activity, seal entry points, and clean up the damage so your attic is safe and protected.

Common Attic Pests in British Columbia

The Lower Mainland's mild, wet climate creates ideal conditions for wildlife seeking shelter in residential attics. Unlike colder regions where pests are seasonal, BC homeowners can face attic infestations any time of year.

  • Rats and mice — The most common attic invaders in the Lower Mainland. They squeeze through gaps as small as a quarter, contaminate insulation with droppings and urine, and gnaw on electrical wiring, creating fire hazards.
  • Squirrels — Eastern grey squirrels and Douglas squirrels frequently nest in attics, especially during spring and fall. They chew through fascia boards, soffits, and roof vents to gain entry.
  • Raccoons — Powerful enough to rip open soffit panels and ridge vents, raccoons cause extensive damage and leave large volumes of hazardous waste in attic spaces.
  • Birds — Starlings and sparrows nest in attic vents and soffits, blocking airflow and introducing mites, parasites, and droppings into the attic.
Attic inspection for pest activity in a Lower Mainland home

Signs of Attic Pest Activity

Many homeowners do not realize they have an attic pest problem until the damage is significant. Knowing what to look for helps you catch infestations early, before they compromise your insulation and create health risks.

  • Droppings and urine stains — Rodent droppings are the most obvious sign. They appear as small dark pellets scattered across insulation and along joists.
  • Gnaw marks — Chewed wiring, wood framing, plastic vent covers, and insulation are clear indicators of rodent or squirrel activity.
  • Nesting material — Shredded insulation, paper, leaves, and fabric gathered into nests, often in corners or near heat sources.
  • Scratching or scurrying sounds — Noises in the attic at night (rodents) or during the day (squirrels) are a strong indicator of active infestation.
  • Musty or ammonia-like odour — Accumulated urine and droppings produce a distinct smell that can permeate into living spaces below.
  • Entry holes — Gaps in soffits, chewed roof vents, or openings around plumbing and utility penetrations.
Attic Reset technician inspecting attic for pest damage

Health Risks & Insulation Cleanup

Pest-contaminated insulation is not just unpleasant — it is a genuine health hazard. Rodent droppings can carry hantavirus, salmonella, and other pathogens. Raccoon waste can contain roundworm eggs that become airborne when disturbed. Bird droppings harbour histoplasmosis spores.

Once pests have been active in an attic, the insulation is typically compromised beyond cleaning. Droppings, urine, nesting material, and carcasses are embedded throughout. The most effective approach is complete removal of contaminated insulation followed by sanitization and fresh installation.

  • Full removal of contaminated insulation using industrial vacuum equipment
  • Sanitization and deodorization of the attic space
  • Identification and sealing of all entry points to prevent re-entry
  • Installation of pest-resistant screening on vents and openings
  • Fresh blown-in insulation installed to current R-value standards

We handle the entire process from inspection through to re-insulation, so you have a single point of contact for the complete job.

Attic insulation removal and replacement after pest contamination

Other Services You May Need

Pest infestations often require additional attic work beyond the initial cleanup. These services help restore your attic to full performance.

Where We Work

We provide attic pest inspection and prevention across the Lower Mainland and Fraser Valley.

Book Your Free Attic Inspection

Suspect pests in your attic? Text or call us for a thorough inspection and honest assessment. No obligation.

Text Us Now Or Call 604-700-8588