Strata Pest Control Responsibility Follows Access Point, Not Pest Location
Claim: In a BC strata, who pays for pest control is determined by where the pest entered — not where it is found. Access through common property (vents, foundations, building envelope, shared wall voids, landscaping) makes the infestation a strata corporation responsibility. Access through owner-controlled conditions (open windows, kitchen practices, bathroom humidity) stays with the owner.
Mechanism
Under the BC Strata Property Act:
- SPA s. 72: the strata corporation must repair and maintain common property and common assets.
- Standard Bylaw 2: the owner must repair and maintain their strata lot.
The division sounds clean, but pests move. The governing principle, stated by CHOA and strata management commentary: “understanding access is the first step to understanding responsibility.”1
Common scenarios and how they map:
| Scenario | Access point | Responsible party |
|---|---|---|
| Wasp nest under common-property eaves or soffit | Common property | Strata corporation |
| Wasp nest on owner’s private balcony railing | Strata lot | Owner |
| Carpenter ants entering through building envelope or exterior landscaping | Common property | Strata corporation |
| Carpenter ants entering through owner’s own rotted window frame | Strata lot boundary | Owner (and the rot is also the owner’s) |
| Silverfish in owner’s bathroom (humidity-driven) | Unit condition | Owner |
| Cluster flies overwintering in shared attic | Common property | Strata corporation |
| Cockroaches spreading between strata lots through plumbing chases | Common property + multi-lot | Strata corporation coordination required |
| Pantry moths in owner’s kitchen | Owner’s food storage | Owner |
The cost-recovery direction: if the source of an infestation can be linked to an owner’s activity (e.g., chronic open garbage on a balcony attracting wasps), the strata corporation may be able to recover costs against that owner under its bylaws, provided SPA s. 135 process is followed (written particulars, chance to respond).1
Why multi-lot problems always go to the strata: cockroaches and bed bugs cannot be resolved unit-by-unit — treating one unit without coordinating adjacent units produces re-infestation within weeks. The strata corporation is the only party that can commission building-wide simultaneous treatment.
Documenting your claim: if you believe access is from common property and the strata refuses to act, document in writing with date, location, and photographic evidence (nest attachment point, ant trail entry point, frass location). Written notice to the strata manager creates a record for a Civil Resolution Tribunal application under SPA s. 164 if the strata fails its maintenance duty.
Scope
This idea applies to BC strata properties only. It does not:
- Determine responsibility for pest damage repair (structural carpenter ant damage to framing is a separate question from who pays for the treatment)
- Override registered strata bylaws that reassign default responsibilities between the corporation and owners
- Apply to bare-land stratas where owners control separate buildings not shown on the strata plan
Always check the registered strata bylaws and strata plan boundary — the defaults can be shifted.
Idea Compass
North: Where this comes from
- SPA s. 72 (strata corporation repair duty) + Standard Bylaw 2 (owner repair duty) — the statutory framework
- pest-insects (Home Systems) — the parent component where this principle appears in the strata section
East: Tensions / failure
- Strata refusing to act despite common-property access — owner’s recourse is SPA s. 164 / Civil Resolution Tribunal
- Registered bylaws shifting responsibility — always check the actual bylaws before assuming the default applies
South: Where this leads
- pest-rodents (Home Systems) — same access-point principle applies to rodent infestations
- pest-prevention (Home Systems) — building-envelope sealing is the strata-level prevention that reduces common-property access
- Written notice to strata manager as the first step in asserting strata responsibility
West: What’s similar
- water-heater (Home Systems) — strata responsibility split follows the same principle: a burst water heater in your unit is yours, but if the cause was a common-property plumbing failure, responsibility shifts
- The Strata Insurance Circularity Problem — the same ambiguity about strata-vs-owner responsibility that makes insurance confirmation essential
Sources
Footnotes
-
MetroWest Building Services, BC strata management firm — pest control responsibility in BC strata: access-point principle, common-property entry = strata corporation, multi-lot spread = strata coordination — https://www.metrowestbs.com/single-post/2020/08/05/whose-responsibility-for-pest-control-in-a-strata-lot ↩ ↩2