HVAC Cost Guide

Updated 2026 · National average (USD)

HVAC is one of the biggest home expenses most owners face, and prices swing widely by region, equipment and labor. Use these guides to understand realistic 2026 cost ranges before you call a contractor — then get free quotes from licensed pros to compare against your local market.

How Much Does AC Repair Cost?

$100–$650

Average around $350

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AC Installation & Replacement Cost

$3,900–$8,000

Average around $5,900

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Furnace Replacement Cost

$3,000–$7,600

Average around $4,700

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HVAC System Replacement Cost

$7,000–$16,000

Average around $11,000

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What Size AC & Furnace Do You Need?

Your local climate changes the heating and cooling load for your home. This estimate uses a national mixed baseline — for a location-specific result, open your state page. Enter your details for a quick sizing estimate (BTU, tonnage and a recommended SEER2 range).

Home size (sq ft) Ceiling height Sun exposure People in home

Your estimated AC tonnage and furnace size will appear here.

Actual equipment sizing requires a professional Manual J load calculation. This tool provides a rough estimate for general informational purposes only and is not professional advice, a guarantee, or a quote. Results may not reflect your specific situation. Always confirm with a licensed HVAC professional before making any purchase or decision. See our Terms of Service for details.

All figures are national average estimates for 2026 and vary by region, brand, equipment efficiency and labor rates. They are a guide, not a quote — always get local estimates from licensed contractors.