Bats in the attic, done the legal way.
BC bats are a protected species. Illegal exclusion means fines and dead bats. We use one-way valves on the right timing window — never during maternity season — and seal every roost entry for good.
Precisely what we do, step by step.
Little brown bats (Myotis lucifugus) and Yuma bats are the two species most commonly found in Metro Vancouver attics. Both are protected under BC's Wildlife Act — it is illegal to kill, harm, or exclude them during maternity season (typically May through mid-August). A company that tells you otherwise is putting you at legal risk.
Our bat process starts with species confirmation and a roost assessment. We identify every potential entry — bats can squeeze through gaps as small as 10mm — and plan exclusion for the legal window, late August through October (before winter roosting), or in early spring. We use one-way valves that let bats leave but prevent re-entry, then seal every gap with hardware cloth and bat-safe materials.
Guano cleanup and attic decontamination is included where contamination is present. Histoplasmosis risk is real — we use PPE and follow IPMR-BC decontamination standards. You get a full report documenting species, entry points, sealing, and decon work.
Repeatable. Documented. Guaranteed.
Identify & plan
Species confirmation. Maternity-season check. Roost-entry mapping. Timing plan aligned with BC Wildlife Act.
One-way valves
Installed at confirmed entry points during legal exclusion window. Bats exit naturally, can't return.
Monitor 7 days
Confirmation period. We verify the roost is empty before sealing.
Seal + decontaminate
Hardware cloth, flashing, and bat-safe sealant on every gap. Guano removal and enzyme treatment where needed.
Signs it’s time to call.
- Chittering or scratching sounds in the attic, most audible at dusk and dawn.
- Bat droppings (guano) accumulating below eaves, gables, or chimney.
- Dark streaks or staining around roof-line openings.
- Bats seen emerging from a single point at twilight.
- Ammonia-like smell in the attic from guano accumulation.
Everything else you might be wondering.
Isn't it illegal to remove bats?
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Do I need the guano cleaned up?
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Can bats come back once sealed?
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How much does bat exclusion cost?
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Ready to actually solve this?
Most customers book in under 60 seconds. Same-day service across Metro Vancouver, 1-year single-point warranty.