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HVAC
From central AC installs to seasonal furnace tune-ups, understand what HVAC really costs, when to repair vs. replace, and how to vet a contractor.
Heating, ventilation, and air conditioning is the most expensive single mechanical system in most homes. Smart decisions about sizing, efficiency ratings, and timing replacements can save thousands over the life of the system.
Regional cost comparison
Figures are widely cited industry averages compiled from contractor surveys, trade publications, and consumer-reporting databases. Your real quote will vary by home size, materials, accessibility, permits, and local labor rates.
| Service | Northeast | South | Midwest | West | National avg |
|---|---|---|---|---|---|
| Central AC install (3-ton, 16 SEER2) | $6,800–$10,500 | $5,200–$8,500 | $5,500–$9,000 | $6,500–$11,500 | $6,000–$10,000 |
| Gas furnace replacement (80k BTU, 95% AFUE) | $5,400–$8,800 | $4,200–$7,000 | $4,800–$7,800 | $5,200–$8,400 | $4,900–$8,000 |
| Heat pump (3-ton, 16 SEER2) | $8,500–$14,000 | $6,800–$11,000 | $7,500–$12,500 | $8,000–$13,500 | $7,700–$12,800 |
| Annual tune-up (single system) | $110–$220 | $90–$180 | $95–$190 | $120–$240 | $100–$200 |
| Ductwork replacement (1,800 sq ft) | $3,800–$7,500 | $3,000–$6,200 | $3,200–$6,500 | $3,800–$7,800 | $3,400–$7,000 |
When to hire a pro
- Refrigerant leaks or low cooling capacity
- Furnace short-cycling or no ignition
- Ductwork redesign or new system install
- Annual maintenance and safety inspections
When DIY is OK
- Replacing 1" furnace filters every 1–3 months
- Clearing the outdoor condenser of leaves and debris
- Programming or upgrading a smart thermostat
- Insulating exposed refrigerant lines
HVAC guides
How Much Does Central AC Installation Cost in 2026?
What you'll actually pay for a new central air system — by region, tonnage, and SEER2 rating — plus where contractors quietly add margin.
Read guideFurnace Repair vs. Replace: The $5,000 Decision
The age-and-cost math contractors use to decide whether a furnace is worth fixing — and the warning signs that mean replace, not repair.
Read guideHeat Pump vs. Furnace: Which Is Actually Cheaper to Run?
A side-by-side breakdown of installation costs, monthly bills, and 10-year ownership for both technologies — with the regional crossover points.
Read guideThe Best Time of Year to Replace Your HVAC System
Why shoulder seasons can save you 15–20% — and which months contractors are most likely to discount.
Coming soonSmart Thermostats: How Much Do You Really Save?
Real-world utility data on smart thermostat savings, plus the homes where the math just doesn't work.
Coming soonDuctless Mini-Split Cost Guide by Zone Count
What single-zone, dual-zone, and whole-home mini-splits actually cost installed — and when they beat central air.
Coming soonWhat Is SEER2 and Why It Matters in 2026
The new efficiency rating that replaced SEER — and how to read it on a contractor quote.
Coming soonIndoor Air Quality Upgrades: A Realistic Cost Guide
From basic media filters to whole-home HEPA and UV — what each upgrade costs and which actually deliver.
Coming soonHow to Vet an HVAC Contractor: A 7-Point Checklist
License lookups, NATE certification, insurance verification, and the questions that separate pros from parts-swappers.
Coming soonHVAC Warranties Explained: What's Covered and What's Not
Manufacturer parts vs. labor warranties, registration deadlines, and the fine print that voids coverage.
Coming soon