It’s a scenario many Montreal and North Shore homeowners face: your heat pump stops working just as the humidity hits, and the repair quote arrives. Is it worth the $1,500 fix, or is it time to look at a replacement? In 2026, the answer is often found in two places: the "Rule of 50" and the latest Hydro-Québec subsidies.
When to Choose Repair
If your unit is less than 10 years old, a repair is usually the logical choice. Common issues like a failed capacitor ($200–$300) or a faulty fan motor ($400–$700) are relatively inexpensive compared to a full system swap. If your heat pump is still under a manufacturer’s parts warranty, repairing is a no-brainer.
When Replacement is the Smarter Move
In 2026, we generally recommend a full replacement if your system meets any of these criteria:
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The Rule of 50: If the cost of the repair multiplied by the age of the unit exceeds $5,000 (e.g., a $500 repair on a 12-year-old unit = $6,000), it's time to replace.
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The Refrigerant Factor: Systems older than 12 years likely use R-410A. With the 2026 phase-out in full effect, the cost of this refrigerant has skyrocketed. A simple leak repair and recharge can now cost over $1,000.
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Compressor Failure: Replacing a compressor in an old unit can cost between $2,500 and $4,500. This is rarely a good investment for a system nearing the end of its 15-year lifespan.
The 2026 Financial Advantage
The biggest reason to replace in 2026 is the LogisVert program. Hydro-Québec is currently offering up to $6,700 for high-efficiency cold-climate models. When you combine this with the Canada Greener Homes Loan (which provides up to $40,000 in interest-free financing over 10 years), the monthly cost of a brand-new, high-efficiency system is often lower than the repair bill plus the extra electricity an old, inefficient unit consumes.
Conclusion: In a Montreal winter or a Laval summer, reliability is everything. If your system is over 12 years old and facing a major repair, the 2026 subsidies make this the perfect year to upgrade to a quieter, more efficient, and fully warrantied system.