How much does it cost to add AC to an existing furnace

Adding central air conditioning to an existing furnace typically costs $3,500 to $5,500 in Ottawa, depending on your home's size, ductwork condition, and the AC unit's efficiency rating.

The cost includes installing an outdoor condenser unit, an indoor evaporator coil that connects to your existing furnace, refrigerant lines, electrical connections, and a new thermostat if needed. Your existing ductwork can usually be used, which keeps costs lower than a complete HVAC system installation. However, if your ducts need modifications, repairs, or additional return air vents, expect to add $500 to $1,500 to the project.

Several factors affect the final price in Ottawa homes. Older homes may need electrical upgrades to handle the AC unit's power requirements, adding $300 to $800. The distance between your furnace and where the outdoor unit will be placed impacts refrigerant line costs. Two-story homes or those with challenging layouts may require additional labor. Higher efficiency units (14+ SEER) cost more upfront but provide better cooling and lower electricity bills during Ottawa's hot summers.

A licensed HVAC technician needs to assess your furnace's compatibility and ensure proper sizing. An oversized unit will cycle on and off frequently, reducing comfort and efficiency. An undersized unit won't adequately cool your home during peak summer temperatures. The installation typically takes one to two days and may require an electrical permit depending on your home's current electrical setup.

Most Ottawa homeowners see this as a worthwhile investment, especially with increasingly hot summers and the added home value. For a free assessment of your specific situation and accurate pricing based on your home's requirements, request a quote from Ottawa HVAC Pro.

---

Find a HVAC Contractor

Ottawa HVAC Pro connects you with experienced contractors through the https://justynrookcontracting.com:

• Nic’s D.U.C.T Works Inc ✓
• Anchor Home Comfort ✓
• Callandgone