Water hits a strata building. Units flood. The phones start ringing. And within the first 20 minutes, someone asks the question nobody has a clean answer to: "Who's responsible for this?"
As an IICRC Master Water Restorer with 20+ years responding to strata losses across the Fraser Valley, I can tell you that this question — asked in the wrong order — costs strata corporations time, money, and AGM credibility. The right order is: stop the damage first, sort the responsibility second. But councils and property managers who understand the responsibility framework before a loss hits are always better positioned when one does.
This guide breaks down how BC's Strata Property Act and standard bylaws actually assign repair responsibility — and what it means for how you respond when water damage occurs in your building.
Strata hallway flood — standing water on carpet tile requiring immediate extraction and structural drying.
Common area water intrusion in a Fraser Valley strata — equipment staged for emergency mitigation.
The Core Principle: Responsibility Follows Bylaws, Not Blame
This is where most strata water damage disputes begin — and it's the most important thing to understand.
Whether you are a unit owner or the strata corporation, your responsibility to repair certain property is not impacted by how the damage occurred. Innocence or fairness do not factor in with respect to how the Strata Property Act or bylaws allocate responsibility to repair.
That means: who caused the damage is a separate question from who repairs it.
If a unit owner on the second floor leaves their sink running and causes damage to a unit on the first floor, it is still the first-floor owner's responsibility to repair their unit. The fact that the second-floor unit owner caused the loss does not influence, change, or alter the first-floor unit owner's responsibility to repair their unit.
The strata corporation fixes what the strata is responsible for. Owners fix what owners are responsible for. The question of recouping those costs from the party who caused the loss is a separate conversation — one that may involve bylaws, legal action, or insurance subrogation.
The Strata's Responsibility vs. the Owner's Responsibility
Under a typical BC strata bylaw set — which follows the Schedule of Standard Bylaws under the Strata Property Act — the split generally looks like this:
Strata Corporation Responsible For:
- Common property (hallways, parkades, amenity rooms, building envelope)
- Shared building systems (main supply lines, drain stacks, common area plumbing)
- Structural elements (roof, exterior walls, foundations)
Individual Unit Owners Responsible For:
- Everything within their strata lot boundaries
- Interior finishes, fixtures, and improvements
- Damage to their unit — even when the cause originated elsewhere
Example 1: If water begins leaking into a townhouse unit through the roof during a rainstorm, the unit owner is responsible for repairing the interior damage. The strata corporation will likely be required to repair the roof itself.
Example 2: If a unit owner drags a couch down a common hallway causing damage to the carpeting, the strata is still responsible to repair that damage. The fact that an owner caused it does not change this.
This framework feels counterintuitive the first time you encounter it. But it's the law — and bylaws built on the SPA standard schedule follow it consistently.
When Insurance Is and Isn't Involved
A critical variable in any strata water loss is whether the strata corporation's insurance policy is triggered. When the cost of the damage falls below the strata corporation's insurance deductible or the loss does not trigger coverage for other reasons, determining who pays becomes even more challenging.
The duties of the strata corporation to insure and to repair are distinct and separate under the BC Strata Property Act. The fact that the strata insures something does not automatically mean the strata repairs it — and vice versa.
It is critical that unit owners involve their strata corporation and/or property manager as soon as possible following a loss. This provides the strata corporation the opportunity to investigate and take any action they may be responsible for under the bylaws — and may help determine who is responsible for what damage more quickly.
For councils: your first job after a loss is to get qualified eyes on the building — not to assign blame.
The Hidden Risk — Delayed Response and Escalating Damage
Here's where the financial stakes get real.
The Numbers
Around 70% to 75% of strata claims come from water damage — 25% are linked to human error, and 50% are due to things such as poor maintenance, like aging pipes or leaky building envelopes.
Most of those losses are manageable when caught and responded to immediately. They become expensive — and contentious — when the response is delayed while responsibility is being debated.
As an IICRC Master Water Restorer, I've walked into suites 72 hours after a loss where a 4-hour mitigation job turned into a two-week remediation project — because no one called until the carpets were black and the drywall had gone soft. The bylaws didn't change. The responsibility didn't change. But the cost to everyone involved tripled.
A proactive strata that engages a water mitigation plan — including procedures, maintenance awareness, and rapid response — can dramatically improve its risk profile. One example: over $400,000 in premium savings for a high-rise strata that took water mitigation seriously in advance of their insurance renewal.
Speed is your best financial defence.
What Strata Councils Should Do Immediately After a Water Loss
Stop the source
Shut off the affected unit or building water supply. Know where your shut-offs are before a loss happens.
Call a qualified restoration contractor
Not a general contractor. An IICRC-certified water damage mitigation firm who can document, dry, and scope the loss correctly.
Notify the property manager and your insurer
Even if you're not sure the loss will trigger your deductible — notify early.
Document everything
Photos, moisture readings, timestamps. This protects the strata on the responsibility question and on any future scope disputes with insurers or owners.
Do not assign blame before you have facts
Get the building stabilized. The liability conversation comes after the water is out.
If you're building a water incident response plan, start by identifying people on council or in the building who can respond after hours — and make sure building-wide notices include clear response steps, emergency contact numbers, and information on where shut-off valves are located.
Why Fraser Valley Strata Managers Call iRPro First
iRPro Restoration serves strata corporations across Chilliwack, Abbotsford, Langley, and the broader Fraser Valley. When water hits, we respond 24/7 — and every loss is handled under the direct oversight of an IICRC Master Water Restorer.
That credential matters beyond the marketing. It means your loss is being assessed and documented against the S500 standard — the industry benchmark for water damage restoration. It means scope decisions hold up under adjuster review. And it means you're not managing a second problem (an underdocumented or incorrectly mitigated loss) on top of the first one.
Strata property managers across the Fraser Valley keep our number because they know that when they call at 2:00 AM, they're getting a qualified response — not a crew that shows up and waits for someone to tell them what to do.
If you're a property manager or strata council member in the Fraser Valley, we're available 24/7.
About the Author
Darren Miller is CEO of iRPro Group of Property Services, based in Chilliwack, BC. He holds IICRC Triple Master certifications as a Master Water Restorer, Master Fire & Smoke Restorer, and Master Textile Cleaner — one of fewer than five professionals in the Fraser Valley with all three Master-level certifications. With over 20 years of restoration experience, Darren and his team serve 45+ strata buildings throughout the Fraser Valley.