Furnace replacement cost depends on whether you have a gas or electric furnace, the size and efficiency of the new unit, and whether you are also replacing your air conditioner. In many Arizona homes, the indoor unit is an air handler with electric heat, which typically costs $2,000 to $5,000 to replace. For a gas furnace, we will give you an exact price in writing after we see your setup.
Typical prices in Surprise & Sun City West
| Service | Typical Price Range |
|---|---|
| Air Handler Replacement | $2,000–$5,000 |
| Complete A/C System Replacement | $7,000–$18,000+ |
| Thermostat Replacement (Standard) | $150–$350 |
Prices are typical installed ranges for residential systems in the Surprise / West Valley area and are for general guidance only, not a quote. Your exact price is given in writing before any work begins, and the $95 diagnostic fee is waived with any repair. There is never an extra charge for nights, after-hours or weekends. See our full price guide.
What affects furnace replacement cost
- Gas or electric furnace
- Size and efficiency of the new unit
- Venting and gas line updates for gas furnaces
- Whether the AC is replaced at the same time
- Installation location, such as attic or closet
Consider a heat pump
Because Arizona winters are mild, many homeowners replace a furnace and air conditioner with a heat pump system that handles both heating and cooling. See our Heat Pump vs AC guide for a comparison.
When to replace a furnace
- A cracked heat exchanger on a gas furnace
- Repeated breakdowns
- A system nearing 15 to 20 years or more
- You are already replacing your air conditioner