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When to Replace Your AC in Scarborough — 7 Signs It’s Time to Stop Repairing
Most Scarborough homeowners repair their AC far longer than they should. The decision to stop repairing and start replacing saves money, improves comfort, and in many cases pays for itself quickly through energy savings. Here are the 7 clearest signals that your Scarborough AC has reached end-of-life.
📞 (416) 424-4328 — Free AC Replacement Assessment in Scarborough
7 Signs Your Scarborough AC Needs Replacement
1. Age 12+ Years
Central AC systems have a typical lifespan of 12–18 years. Past 12 years, parts availability decreases, efficiency has degraded significantly from factory rating, and major component failure (compressor, coil) becomes increasingly likely.
2. The System Uses R-22 Refrigerant
R-22 (Freon) is no longer produced in North America. Recharging an R-22 system costs $400–$600+ per pound (vs. $120–$180 for modern R-410A). Any R-22 system with a refrigerant leak is a strong candidate for replacement.
3. Compressor or Coil Failure
Compressor replacement runs $800–$1,800+. On a unit 10+ years old, a failed compressor almost always warrants full system replacement rather than repair.
4. Second Major Repair Within 2 Years
One major repair can be justified. Two within 24 months signals a system in overall decline.
5. Energy Bills Have Increased Significantly
AC systems lose 10–20% of their efficiency per decade of operation. If your summer Hydro bills have climbed significantly without a change in usage, declining AC efficiency may be the cause.
6. The System Is Undersized for the Home
Homes that have been renovated or expanded may now have more square footage than the AC system was designed for. An undersized system runs continuously, never reaches set temperature, and wears out faster.
7. Frequent Trips for Minor Repairs
Capacitor, contactor, and fan motor replacements every 2–3 years on an aging system add up quickly. Track your repair history: if total repairs in the last 3 years exceed 50% of a new system cost, replacement makes financial sense.
AC Replacement Costs in Scarborough — 2026
Standard central AC replacement (removal of old unit, new 2-ton unit): $3,800–$5,500 installed (incl. HST). Heat pump replacement (cooling + heating, Ontario rebates up to $5,000): $5,000–$10,000 before rebates.
When should I replace my AC in Scarborough instead of repairing it?
Replace your Scarborough AC when it is 12+ years old, uses R-22 refrigerant, has had a second major repair within 2 years, or when a single repair cost exceeds 50% of a new system cost. A compressor failure on a 10+ year old system almost always warrants replacement rather than repair. Call Madina Mechanical at (416) 424-4328 for a free replacement assessment.
Related Services
- ❄️ AC Installation Scarborough — New central AC replacement
- ❄️ AC Repair Scarborough — When repair IS the right choice
- 🌡️ Heat Pump Installation Scarborough — Replace AC + furnace with one system
