Mold isn’t the only hidden danger in a home. Learn the three common hazards homebuyers in Ontario should look for — and how to protect your investment.

🏠 It’s Not Just Mold: Every Homebuyer Should Be Checking for These 3 Other Hazards Before Buying

When most homebuyers think of “red flags,” mold usually tops the list — and for good reason. But it’s far from the only potential hazard lurking behind the walls of a home.
Whether you’re purchasing your first condo, a family home in Milton, or an investment property in Hamilton, it’s crucial to look beyond the surface.

Here are three other major hazards every buyer should be checking for before signing on the dotted line.

⚡ 1. Aluminum Wiring

Common in homes built between the late 1960s and mid-1970s, aluminum wiring can pose a fire hazard if not properly maintained.
Unlike modern copper wiring, aluminum expands and contracts with heat, which can loosen connections over time — increasing the risk of overheating.

🔍 What to Look For:

• Ask your home inspector if the property has aluminum wiring.

• If present, ensure connections are updated with CO/ALR-rated devices or pigtailing done by a licensed electrician.

• Some insurers require proof of professional inspection or remediation before issuing coverage.

💡 Tip: Don’t panic if a home has aluminum wiring — but make sure it’s been professionally addressed before finalizing your purchase.

☣️ 2. Asbestos

While banned in Canada since 2018, asbestos remains present in many older homes, especially those built before 1985. It was once widely used for insulation, ceiling tiles, flooring, and even drywall compound due to its heat resistance.

🔍 What to Look For:

• Homes with popcorn ceilings, old duct insulation, or vinyl flooring may contain asbestos.

• If suspected, do not disturb it — hire a certified environmental specialist for sampling and removal.

• Professional abatement can cost several thousand dollars, but it’s critical for long-term safety.

💡 Tip: Asbestos is only dangerous when airborne — encapsulated materials are generally safe if left intact.

💧 3. Radon Gas

Radon is an invisible, odourless radioactive gas that seeps from soil into homes — and it’s more common in Ontario than many realize.
According to Health Canada, radon exposure is the second leading cause of lung cancer after smoking.

🔍 What to Look For:

• Purchase a radon testing kit (available at most hardware stores) or hire a certified mitigation specialist.

• Testing should be done for at least 90 days for accurate results.

• If levels exceed 200 Bq/m³, mitigation systems (similar to a ventilation fan) can safely reduce exposure.

💡 Tip: Radon is especially common in basement-level living spaces or homes built on rock or clay-heavy soil.

🧰 Bonus: Lead Paint and Plumbing

Lead-based paint was banned in Canada in 1976, but it may still exist under layers of newer paint in older homes. Similarly, lead plumbing was used until the late 1980s in some municipalities.

Testing kits and water filtration systems can help identify and resolve these concerns easily — another example of why a thorough home inspection is essential before purchase.

💬 Final Thoughts

Buying a home is one of the biggest financial decisions you’ll ever make — and peace of mind starts with knowledge.
By checking for these hidden hazards early, you can protect your health, your family, and your investment for years to come.

At Ana Bastas Realty, we work closely with trusted inspectors, environmental professionals, and contractors to ensure our clients buy confidently — and safely.

📞 289.670.5888 | 🌐 www.anabastas.ca
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