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🛡️Buyer Due Diligence

BC Realtor Property Insurance Guide (2026): What Kills Deals and How to Advise Your Clients

Home insurance problems kill BC real estate deals — and they often surface after subjects are removed, when it's too late. An oil tank in the backyard. Kitec plumbing throughout the building. Knob-and-tube wiring that three insurers have declined. A strata with a $500,000 deductible and one insurer left in market. Understanding property insurance risk is now a core realtor competency.

May 2026·14 min read·Buyer Due Diligence

Why Property Insurance Is a Deal-Killer

Every mortgage lender in Canada requires proof of property insurance before funding. If a buyer cannot obtain adequate insurance — for any reason — the lender will not advance funds, and the deal cannot close.

This creates a critical timing problem: most BC buyers obtain insurance quotes after removing subjects. By then, they've already waived their ability to exit the contract without losing their deposit. An uninsurable property discovered post-subjects is a catastrophic outcome.

🏠 Include Insurance in Your Subject Conditions

Best practice: make every offer for an older home or strata unit subject to the buyer obtaining satisfactory home insurance at a premium and on terms acceptable to the buyer. This gives your client the ability to exit if insurance is unavailable or prohibitively expensive — before they're legally committed to close.

The following are the most common property insurance deal-killers in BC, with guidance on identification, risk level, and how to advise your clients.

1. Oil Tanks (Underground and Decommissioned)

BC homes built before the 1980s often used oil heat — and many still have in-ground oil storage tanks, even if they switched to gas decades ago. An oil tank that has leaked creates soil contamination with cleanup costs ranging from $20,000 to $200,000+.

🔍 How to Identify Oil Tank Risk

  • • Home was built before 1975
  • • Old fill pipes or vent pipes visible outside
  • • Abandoned oil furnace in basement
  • • Dead patches of grass in backyard (tank below)
  • • Oil staining on concrete near foundation
  • • Previous owner disclosed oil heat on PDS
  • • Tank sweep report not included in disclosure package

🛡️ Insurance Position

  • • Suspected but uninvestigated: most major insurers decline
  • • Tank found but not removed: decline or exclusion of pollution
  • • Tank removed, soil clean (letter from environmental firm): insurable
  • • Tank removed, soil contaminated and remediated: insurable with documentation
  • • Active contamination: not insurable by standard market

Advisory: Oil Tank Discovery

Make oil tank investigation a subject condition on any pre-1980 home. A professional tank sweep (ground-penetrating radar) costs $200–$400 and takes 2 hours. If a tank is found, removal and soil testing runs $2,000–$8,000 for a non-contaminated tank. Request that the seller complete removal with a clean soil assessment before removing subjects, or negotiate a price reduction and hold back to cover remediation.

2. Kitec Plumbing

Kitec is a flexible plastic pipe (polyethylene aluminum polyethylene — PEX-AL-PEX) with brass fittings containing zinc. Installed in BC from approximately 1995 to 2007, Kitec was recalled after the fittings were found to dezincify — weakening over time and eventually failing catastrophically, causing major water damage.

🔍 How to Identify Kitec

  • • Orange (hot) and blue (cold) flexible pipes visible in mechanical room
  • • Building constructed 1995–2007
  • • Branded "Kitec," "IPEX," "AmbioComfort," "Warm-line," or "Plomberie Kitec"
  • • Brass-coloured fittings with bluish-green corrosion
  • • Strata buildings: check with strata manager for known Kitec status
  • • Metro Vancouver, Kelowna, Fraser Valley — high prevalence

💰 Cost and Insurance Impact

  • • Full replacement: $10,000–$25,000 for a townhouse; $3,000–$8,000 for a condo unit
  • • Strata building-wide replacement: $500,000–$5M+ funded through special levy
  • • Most major insurers: decline or significant surcharge for confirmed Kitec
  • • Some specialty markets will insure at 2–4× standard premium
  • • Strata's insurance may exclude Kitec-related water damage
  • • Class action settlement (2012): $125M fund largely exhausted

⚠️ Strata Kitec Risk

In a strata building, Kitec in common areas (in-suite supply lines running through common walls) may be the strata's responsibility to replace — but the cost comes via special levy. Ask the strata manager directly: "Has the building been assessed for Kitec plumbing? If Kitec is present, what is the replacement plan and cost per unit?" A strata with 200 units facing a $2M Kitec replacement has a $10,000 per-unit levy problem that won't appear on the Form B until the vote is called.

3. Knob-and-Tube Wiring and Aluminum Wiring

Electrical systems are among the most common reasons BC home insurers decline or surcharge policies. Two legacy electrical types create the most problems:

Knob-and-Tube Wiring (Pre-1950 homes)

Knob-and-tube is ungrounded, relies on air cooling (now often buried under insulation, eliminating the cooling mechanism), and uses rubber insulation that hardens and cracks with age. Most BC insurers will not insure a home with active knob-and-tube wiring. Homes where the knob-and-tube has been disconnected but not removed may be insurable — but require a licensed electrician's confirmation letter.

Rewiring cost (Metro Van):

$8,000–$20,000 (1,500–2,500 sq ft home)

Insurance:

Most major insurers decline; specialty markets available at premium

Aluminum Wiring (1965–1975 homes)

Aluminum branch wiring (not to be confused with aluminum service entrance cables, which are still used) was installed in BC from approximately 1965–1975 when copper was expensive. Aluminum expands and contracts more than copper, loosening connections over time and creating fire risk at outlets, switches, and fixtures.

Solutions:

COPALUM crimping ($3,000–$8,000) or full rewire ($12,000–$22,000)

Insurance:

Many insurers decline; some accept with COPALUM crimp letter from electrician

4. Claims History

BC home insurers check the Comprehensive Loss Underwriting Exchange (CLUE) database — a shared industry database of property insurance claims. Claims history follows the property, not just the homeowner. A buyer who purchases a home with three prior water damage claims inherits that property's claims risk profile.

Claims PatternInsurer ReactionBuyer Impact
1 water damage claim (<$50K, 5+ years ago)Standard coverage, possible slight premium increaseMinimal
2 water damage claims in 5 yearsSurcharge 25–50%, higher deductible requiredSignificantly higher premium
3+ water claims in 7 yearsMost standard insurers declineSpecialty market only, 2–4× premium
Fire claim (major, under 5 years)Many insurers decline; specialty onlyVery limited market, premium + conditions
Mould remediation claimMould exclusion added to new policyFuture mould claims not covered
Sewer backup claims (multiple)Sewer backup coverage excluded or priced separatelyBuyer may have coverage gap

🧩 How to Check Claims History

Buyers can request a property's claims history from their insurance broker before removing subjects. Some sellers voluntarily provide a CLUE report in disclosure packages. Alternatively, include a specific subject: "subject to the buyer being satisfied with the property's insurance claims history." This lets the buyer exit if the claims history makes the property uninsurable or prohibitively expensive.

5. Strata Insurance Problems

BC's strata insurance market has been in crisis since 2020 — many buildings saw their premiums triple and deductibles jump to $250,000–$500,000 for water damage. This creates two distinct insurance problems for strata buyers:

Problem 1: Very High Water Damage Deductibles

Buildings with claims history or high-risk profiles face deductibles of $100,000–$500,000 per water claim. Under BC's Strata Property Act s. 158, the strata can pass a "deductible bylaw" making the owner whose unit caused a claim responsible for paying the deductible.

Solution: Unit owner insurance with a "deductible assessment rider" — covers up to $500,000 of deductible liability for owner-caused claims. Cost: $30–$80/year add-on.

Problem 2: Strata Insurance Non-Renewal

Some BC strata buildings — particularly older concrete towers in Metro Vancouver — have been unable to renew insurance at reasonable terms, or have lost insurers entirely. A building that cannot secure insurance creates a major lender problem: lenders require strata insurance as a condition of funding.

Check: Policy expiry date on the Form B. A policy expiring in 60 days with no confirmed renewal is a red flag. Ask the strata manager for the renewal confirmation.

Buildings at High Strata Insurance Risk

• Older concrete towers (1960s–1980s, original plumbing)

• Buildings with multiple prior water damage claims

• Buildings that waived their depreciation report (signal of deferred maintenance)

• Buildings with active or recent litigation (lawyers = coverage complications)

• Buildings with very low CRF balances (potential future special levies)

• Mixed-use commercial/residential buildings (higher liability profile)

Other BC Property Insurance Issues

🌲 Wildfire Zone Properties

Properties in BC's Interior, Okanagan, and parts of Vancouver Island in high wildfire risk zones face declining coverage or very high premiums. Some communities (Kelowna, Penticton, Kamloops) have specific postal codes where major insurers have withdrawn. Buyers in these areas should obtain insurance quotes as a first step — before making an offer — not after.

🌊 Flood Zone Properties

Properties in designated flood plains (FEMA/BC) may not be eligible for standard overland flood coverage. Since BC's 2021 flooding events, many insurers have restricted or eliminated overland flood coverage in high-risk postal codes. The BC government's Flood Risk Insurance Program provides some backstop, but coverage limits and deductibles may be significant.

🌿 Grow-Op History

Even a professionally remediated former grow-op with a clearance certificate may face insurer surcharges or exclusions. Some BC insurers add a mould exclusion to policies on former grow-op properties. Buyers should disclose the grow-op history to their insurance broker and obtain written confirmation of full coverage before removing subjects.

🏠 Heritage Buildings

BC heritage homes designated under the Heritage Conservation Act face insurance challenges because repair and restoration must meet heritage standards rather than using standard materials. Specialty heritage insurance exists but costs significantly more than standard coverage. Replacement cost calculations must reflect heritage-quality restoration, not standard rebuild costs.

🔋 Short-Term Rental Properties

Properties operated as short-term rentals (Airbnb/VRBO) require commercial-grade insurance — standard homeowner policies typically exclude or void coverage when the property is rented to strangers for short periods. BC's Short-Term Rental Accommodations Act (2023) and municipal licensing requirements have changed the landscape significantly. A buyer planning to operate an STR must confirm insurance before closing.

Advisory Scripts for Insurance Conversations

Script 1: Recommending Insurance Subject Condition

"I always recommend including an insurance subject on older homes and strata purchases — specifically a condition that the buyer is satisfied with their ability to obtain home insurance at a cost and on terms acceptable to them. The reason is simple: lenders won't fund without insurance, and some properties can't be insured at all. Discovering that after you've removed subjects is catastrophic. The subject costs us nothing and protects you from the single most common post-subject catastrophe I see in my career. I'd rather we check the box now than deal with a collapsed deal later."

Script 2: Pre-1975 Home — Oil Tank Risk

"This home was built in 1962 and the PDS mentions they switched from oil to gas in the 1980s. That means there may be an old oil tank underground — possibly removed, possibly just abandoned in place. Before we make an offer, I want to get a tank sweep done. It's $300 and takes a couple hours. If a tank is there, we need to know now — a contaminated tank can cost $50,000 to $150,000 to remediate, and most insurers won't touch the property until the soil is clean. If the seller hasn't done this already, I'd suggest we structure the offer subject to a tank sweep, with the seller agreeing to remediate any found contamination at their cost."

Script 3: Strata with High Insurance Deductible

"The strata's insurance shows a $250,000 water damage deductible — that's on the higher end but not unusual in today's market. Here's what that means for you: if something in your unit causes a water damage claim — a washing machine hose, a dishwasher leak, a burst pipe — you could be personally responsible for the first $250,000. The strata's bylaws have a deductible clause, which is standard now. The fix is a specific type of unit owner insurance called a 'deductible assessment rider.' Your broker can add it for about $50/year. I'd confirm with your broker that they'll include it before we remove subjects."

Script 4: Kitec Plumbing Discovery

"The home inspector identified what appears to be Kitec plumbing — the orange and blue flexible pipes in the mechanical room. This is a material issue. Kitec fittings are prone to failure and most major insurers won't write a standard policy on a home with Kitec. We have two options: ask the seller to replace the Kitec before closing — which is the cleanest outcome but requires the seller's agreement — or negotiate a credit and price reduction to cover replacement. Either way, we need to deal with this before removing subjects. I'd also recommend getting two or three insurance quotes so we understand exactly what the insurance situation looks like with Kitec present."

Frequently Asked Questions

Can a buyer lose their mortgage if they can't get home insurance in BC?

Yes. Lenders require proof of property insurance before funding. If a buyer cannot obtain insurance — due to oil tank contamination, Kitec plumbing, knob-and-tube wiring, or other issues — the lender will not advance funds and the deal cannot close. This is why insurance should be confirmed during the subject period, not after subjects are removed.

What is Kitec plumbing and why do BC insurers care?

Kitec plumbing is a type of flexible plastic pipe and brass fitting system installed in BC homes from approximately 1995 to 2007. The fittings contain a zinc alloy that dezincifies over time, causing failures that lead to catastrophic water damage. Insurers either decline coverage or charge significant surcharges for properties with known Kitec plumbing. Many homes in Metro Vancouver, Kelowna, and the Fraser Valley installed Kitec during that era.

Do BC insurers check claims history before insuring a property?

Yes. Most BC home insurers check the Comprehensive Loss Underwriting Exchange (CLUE) database, which tracks property claims history. Multiple claims — particularly water damage claims — can make a property uninsurable or significantly raise premiums. Even claims filed by previous owners appear in the database and affect the property's insurability, not just the new owner's personal history.

What should a BC buyer do if the strata deductible is very high?

Buyers purchasing strata units in buildings with high insurance deductibles (over $50,000) should purchase unit owner insurance with a deductible assessment rider. This covers the unit owner's potential liability for the strata's deductible if a loss is traced to their unit. The strata's bylaws may also have a deductible bylaw (under s. 158 of the Strata Property Act) making the owner responsible if their negligence caused the claim.

How does an old oil tank affect home insurance in BC?

An in-ground or decommissioned oil tank creates potential soil contamination liability that most standard home insurers will not cover. If a tank has not been professionally removed and the soil tested, most major BC insurers will either decline coverage entirely or exclude pollution liability. Buyers should make oil tank removal and a clean soil assessment certificate a condition of purchase for any property that previously used oil heat.

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