Some Homes You Can Buy but Can’t Insure: Oil Tanks, Old Wiring, Kitec, and Other Insurance Red Flags
An approved mortgage doesn’t mean an approved policy — and without home insurance, a mortgage usually can’t close. Confirm the home is insurable while you still have your conditions.
Why can some homes be bought but not insured, and what features raise insurer red flags?
Because mortgage approval and home insurance are two separate gates: the loan can be approved, yet an insurer may decline or demand remediation because of certain risk features — and in Canada, a mortgage usually can’t close without valid home insurance. Common insurance “red flags” include: underground or outdoor oil tanks, knob-and-tube wiring, aluminum branch wiring, Kitec plumbing, galvanized/lead pipes, sub-100-amp electrical panels, end-of-life roofs, old oil/wood heating, and past issues like a former grow-op. Insurer policies differ — some decline outright, others insure only after remediation or at a higher premium.
Sources: common home-insurance underwriting practice (policies vary by insurer — rely on a specific insurer’s quote); TSSA (oil-tank safety regulation). This is general guidance, not a coverage commitment.
There’s a kind of closing surprise many buyers never see coming: the mortgage is approved, the inspection is fine — and then the insurer looks at one feature of the home and says “we won’t insure that.” Without home insurance, the bank won’t fund and the mortgage can’t close. This isn’t scaremongering; it happens every year. The good news: most of these “insurance red flags” are known and checkable in advance. Here are the most common ones, and why you should confirm “is this home insurable?” during your inspection/conditions — not in the week before closing.
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Why "can’t insure" means "can’t close"
In Canada, when you buy with a mortgage, the bank almost always requires valid home insurance in place at closing — the home is the loan’s collateral, and the lender needs it covered against damage. So insurance is a separate gate in the closing chain: loan underwriting looks at you, insurance underwriting looks at the home. Both must clear. Many buyers fixate on the mortgage and forget insurance — and if an insurer declines and you can’t find one in time, closing can be forced to delay or fall through.
⚠️Don’t assume “financeable means insurable.” The loan is about you, insurance is about the home — two separate gates. Especially with older homes or oil heat/old wiring, confirm insurance separately during your conditions, not as closing approaches.
Red flag 1: oil tanks and old heating systems
Red flag 2: old wiring and panels
ℹ️Insurer policies differ: the same home one company declines, another may cover at a higher premium or after remediation. Don’t abandon a home the instant you spot a red flag — get a few quotes, weigh the remediation cost, then decide whether to renegotiate or withdraw.
Red flag 3: problem plumbing, roofs, and more
The right move: settle insurance during your conditions
The single most important practice: confirm whether the home is insurable, and at what premium, while you still have your conditions for protection. It’s simple — send the features your inspector flags (wiring, oil tank, plumbing, roof) plus the home details to your insurance broker/company and ask for a preliminary read on “can you cover this, does it need remediation, what’s the premium.” If you find a decline or a costly remediation, you’re still within your conditions and can renegotiate, ask the seller to remediate, or withdraw under the condition. Discover it after going firm and you’re stuck.
💡 “The loan’s approved” and “the home’s insurable” are different things — and without home insurance, a mortgage usually can’t close. Oil tanks, knob-and-tube, aluminum wiring, Kitec plumbing, old panels, and end-of-life roofs are all known, checkable red flags. The safest move: confirm insurability with an insurer during your conditions, defusing the “can’t insure” landmine while you can still walk away cleanly — not in the week before closing.
Frequently Asked Questions
Can a mortgage really not close without home insurance?
When buying with a mortgage, the bank almost always requires valid insurance in place at closing, since the home is the loan’s collateral. So if an insurer declines and you can’t find one willing to cover, the mortgage usually can’t close — forcing a delay or collapse. That’s why confirming insurability early matters.
Which features most often lead to a declined policy?
Common red flags: underground or outdoor oil tanks, knob-and-tube wiring, aluminum branch wiring, Kitec plumbing, galvanized/lead pipes, sub-100-amp or problem-brand panels, end-of-life roofs, old oil/wood heating, and histories like water damage or a former grow-op. Policies vary — some insurers decline, others require remediation.
Does a red flag mean I can’t buy the home?
Not necessarily. Many red flags can be resolved through remediation (replacing Kitec, pigtailing aluminum, removing an oil tank, replacing a roof). The key is to confirm the feasibility and cost of remediation during your conditions, then decide whether to renegotiate, ask the seller to handle it, or withdraw. Get several quotes — coverage policies vary by insurer.
At what stage of buying should I confirm insurance?
While you still have your conditions for protection. Send the inspector’s flagged features and the home details to an insurance broker/company for a preliminary read on coverage, remediation, and premium. Getting that answer within your conditions gives you room to renegotiate or exit; discovering it after going firm leaves you stuck.
Arthur Zhao
Real Estate Broker · FRI · ABR · SRS · PSA · MCNE · E-PRO · CLHMS & GUILD Elite · REAIS
VP & Branch Manager, Bay Street Group Inc.
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