How our HVAC cost estimates are calculated
Determining the cost of a new HVAC system involves more than just the price of the unit itself. Our estimator takes into account several critical factors to provide you with a realistic price range for your specific situation.
Square Footage and Tonnage
The size of your home is the primary factor in determining the cooling capacity required. A system that is too small will run constantly and fail prematurely, while one that is too large will short-cycle and fail to dehumidify properly.
- 1,000 - 1,500 sq ft: Typically requires a 2 to 2.5-ton unit.
- 1,500 - 2,000 sq ft: Typically requires a 3-ton unit.
- 2,000 - 2,500 sq ft: Typically requires a 3.5 to 4-ton unit.
What the estimator cannot localize
Labor rates, permits, equipment availability, and contractor backlog vary by market. The calculator intentionally leaves those unknowns visible instead of claiming ZIP-code precision it cannot verify. Use the result as a national anchor and compare at least three local written bids.
SEER2 Efficiency Ratings
The efficiency of your new system, measured in SEER2, affects both upfront cost and operating cost. Higher-rated equipment can use less electricity, but the savings depend on climate, runtime, utility rates, duct condition, and the system being sized and installed correctly.
When to repair vs. replace
If your system is over 10 years old and the repair cost is more than 50% of the cost of a new system, replacement is generally the more economical choice. Modern systems are meaningfully more efficient and carry multi-year parts warranties.