Research & guides.
Expert-reviewed articles on HVAC costs, materials, and best practices.
Cost Guide
Furnace Installation Cost (2026): By Size + AFUE
Furnace cost by BTU size and AFUE efficiency rating. See how sizing moves the lifetime price, then grade your contractor's bid against the 2
Cost Guide
Ductwork Installation Cost (2026): Full Breakdown
Ductwork is the rare HVAC job where the crew, not the box, drives the bill. See the labor hours behind it, then check your quote against our
Cost Guide
AC Replacement Cost (2026): By System + Tonnage
Straight swap, heat pump conversion, or full system: three jobs, three price bands. Costs by tonnage and metro. Grade your HVAC bid before y
Cost Guide
Mini-Split Heat Pump Cost (2026): By Zone Count
Single-zone and multi-zone mini-split costs installed. Labor runs about 9% of the job. See the full price by zone count and metro, then chec
Article
Heat Pump vs Furnace: Cost, Efficiency, and Which to Choose
Heat pump or furnace? The fair comparison is against furnace plus AC, and most quotes hide it. See the honest math for your metro before you
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Cost index built by David Olson, Creator of the Cost Index & Permit Dataset · Methodology reviewed by Leonard "Chuck" Thompson, LC Thompson Construction Co., Owner (retired) · 2026-08-28