HVAC Cost Calculator

Estimate your cost

Move the sliders, pick a system, drop a ZIP. The numbers update in real time. For served ZIPs we swap in your city’s pricing multiplier and top-2 utility rebates automatically.

Data sources

• Install + equipment cost. cost_data_detailed — regional 3-ton install rows curated from ACCA contractor surveys + state L&I permit records. Refreshed manually per-region when new data is published.
• City-level benchmarks. cost_benchmarks — one row per (trade, city) pair used across every /cost page on the site. Derived from licensed contractor quotes aggregated via Google Places.
• Utility rebates. utility_rebate_programs + city_utility_map — direct-scraped from each utility program page. We refresh roughly monthly.
• Operating cost baselines. Rough national planning ranges maintained in lib/tools/national-baselines.ts. Use them as directional estimates, not utility-bill promises.
• Sizing rule. Air Conditioning Contractors of America (ACCA) Manual J — load-calculation standard used by licensed installers nationwide.
• Federal tax credits. IRS Form 5695 instructions — IRS guidance says no Energy Efficient Home Improvement Credit is allowed for property placed in service after December 31, 2025.

Frequently Asked Questions

• How accurate is this HVAC cost calculator?

  Our ranges reflect real 2026 market pricing, drawn from the 2,400+ licensed contractors in our national dataset plus cost_benchmarks and cost_data_detailed tables sourced from ACCA regional surveys and state licensing data. Expect actual quotes to land within the range we show about 75–85% of the time. Outliers (historic homes, zero-clearance installs, commercial-grade equipment) sit outside. Always get 2–3 written quotes before committing.

• Does the calculator account for my local utility rebates?

  Yes — when you enter a ZIP we resolve to the closest served city, then stack the top-2 heat-pump / ductless rebates offered by the utilities serving that city. If your ZIP isn't in our coverage grid yet we show the US national median with an explicit disclaimer. Utility rebates update roughly monthly as we re-scrape programs from PSE, PGE, Energy Trust of Oregon, Xcel, MassSave, NYSERDA, and similar.

• Does the calculator still subtract the federal 25C tax credit?

  No. IRS guidance says the Energy Efficient Home Improvement Credit is not available for property placed in service after December 31, 2025. The calculator no longer subtracts 25C from current estimates; it only subtracts local utility or state rebates we have in the database.

• How does the heat-pump vs furnace break-even calculation work?

  We use the operating-cost delta (heat pump runs all-electric at roughly $780–$1,300/year for a 2,000-sqft home; gas furnace $820–$1,600) to project annual savings, then divide the net install premium after currently available local incentives by annual savings to get a payback year count. In most heat-pump-dominant climates the payback is shortest; in cold climates with cheap natural gas, a furnace can still win on ROI.

• Can I embed or cite this calculator?

  Yes. Our data powers every city / cost page on the site — the calculator is one facade. If you're writing about HVAC costs and want to cite a specific stat, each output has a stable ID (#estimated-install, #annual-op, #break-even) for deep-linking. Use the contact page for attribution guidance or embeddable snippets.

• What's included in the install range?

  Equipment + labor + standard permits for a 3-ton residential install, the ACCA-standard sizing for ~2,000 sqft. Excluded: major ductwork replacement, electrical panel upgrades, structural framing, zone additions, or concealed oversizing (common in older homes). If your install needs any of those, expect to land near the top of the range or slightly above.

• How does sizing (20–30 BTU per sq ft) translate to my home?

  ACCA Manual J is the official load-calculation method — no professional should skip it — but the 20–30 BTU per sq ft rule is the widely cited rule of thumb. A 2,000-sqft home typically needs 40,000–60,000 BTU (3–5 tons of cooling capacity). Homes with poor insulation or lots of west-facing glass push higher; newer homes with tight envelopes push lower. Your installer's Manual J report is the number that matters.