HVAC cost guides, itemized for 2026
Every guide below breaks a job into line items with national planning ranges — parts plus labor, rounded, sourced — so you can read a contractor's quote like someone who has seen one before.
How Much Does a New HVAC System Cost?
What full HVAC system replacement really costs in 2026, itemized — line-item ranges, cost drivers, ductwork add-ons, and where the money hides.
Furnace Replacement Cost: What You Will Actually Pay
Furnace replacement cost in 2026, itemized: gas vs electric, 80% vs 96% efficiency, venting surprises, and what moves the installed price.
Central AC Installation Cost, Itemized
Central air installation cost in 2026, itemized by scope: straight replacements against first-time installs with ductwork, and what drives each.
Furnace Repair Costs by Part and Problem
Furnace repair costs in 2026 by part and problem — ignitor, flame sensor, blower, control board — plus the repair-or-replace math that decides it.
AC Repair Costs: From Capacitor to Compressor
AC repair costs in 2026 by part: capacitors, fan motors, refrigerant leaks, compressors — plus the threshold where replacement beats another fix.
Heat Pump Installation Cost, Before and After Incentives
Heat pump installation cost in 2026, standard to cold-climate systems — before the 30% federal credit and the utility rebates that change the math.
Mini-Split Cost: Single Zone to Whole Home
Ductless mini-split cost in 2026 from a single zone through multi-zone to whole-home conversions — equipment, labor, and line sets, fully broken down.
Air Duct Cleaning Cost — and the Coupon Trap
What legitimate whole-home duct cleaning costs in 2026, why the bargain coupon is bait, what NADCA-method cleaning includes, and when it is worth it.
Ductwork Repair, Sealing & Replacement Costs
Duct sealing, targeted repair, and full replacement costs in 2026 — which tier your house actually needs, and how to prove it before you pay.
HVAC Tune-Up Cost and What a Real One Includes
What a professional HVAC tune-up costs per system in 2026, what annual two-season plans run, what a real checklist includes, and what to skip.
Emergency HVAC Service Costs After Hours
After-hours HVAC diagnostic fees and labor premiums in 2026: what emergencies cost, what safely waits till morning, and how to avoid gouging.
Attic Insulation Cost and Payback
Blown-in attic insulation cost in 2026 by square foot and by typical attic — air sealing, spray foam, and the 25C federal credit, all itemized.
Boiler Replacement Cost: The Complete Guide
Boiler replacement cost installed in 2026 — the combi and condensing premiums, gas vs oil, sizing, and the spec lines that move the price.