HVAC replacement is one of the largest appliance expenses a homeowner will face, typically ranging from $5,000 to $22,000 or more depending on the system type, home size, efficiency tier, and local labor market. Understanding the cost breakdown by system type — central AC, heat pump, furnace, ductless mini-split, or boiler — lets you budget realistically, compare bids with confidence, and decide whether a new system is worth it before you call the first contractor.
What Is the Average HVAC Replacement Cost Overall?
The average HVAC replacement cost sits around $7,500 for most homeowners, but the true range is wide. HVAC replacement costs between $5,000 and $22,000, with an average of $7,500 based on unit type and home size. More recent real-world project data puts the number higher: the average cost to replace an HVAC system ranges from $11,590 to $14,100 as of 2026, based on 56,000 real homeowner projects, including central air conditioning, furnace, and heat pump replacement plus labor costs.
The gap between those figures reflects the enormous variation in system type and scope. A straight swap of an existing furnace in a home with good ductwork will cost far less than a full system overhaul with new ductwork and a premium heat pump. Always get at least three quotes from licensed contractors before committing.
How Much Does a Central Air Conditioner Replacement Cost?
Central AC replacement is the most common single-component job, and it typically costs between $3,900 and $7,900 installed. The cost of a central AC system ranges from $3,900 to $7,900, depending on the size of your home and the amount of ductwork. For a 3-ton unit serving a roughly 2,000-square-foot home, the average cost of installing a new central air conditioner in 2025, including equipment and labor, is $5,750.
Efficiency rating — measured by the SEER2 standard — is a major price driver. Energy-efficient systems come with higher upfront costs because of advanced components and higher SEER ratings. A base-tier 14-SEER2 unit will sit at the low end of the range; a 20+ SEER2 variable-speed compressor can push you toward or past $10,000. The higher price may lower your monthly utility bills, but payback timelines vary by climate and usage — something worth modeling before you upgrade.
- Basic 14-SEER2 central AC (swap, existing ductwork): typically $3,900–$5,500
- Mid-efficiency 16–18 SEER2: typically $5,500–$8,000
- High-efficiency 20+ SEER2, variable speed: typically $8,000–$12,500+
- Labor alone: most people pay $500 to $2,500 in labor for air conditioner replacement
How Much Does a Heat Pump Replacement Cost?
Heat pumps handle both heating and cooling from one unit, which makes them attractive — but also more expensive than a standalone AC. A heat pump costs an average of $10,575 to install, according to a 2026 HVAC survey of 1,000 homeowners. The range is wide: the average cost of a heat pump, including installation, ranges from $6,000 to $25,000 in 2026.
System sub-type matters enormously here:
- Air-source ducted heat pump: the average heat pump replacement cost in 2026 ranges from $9,400 to $16,750 for a typical 2.5- to 3-ton air-source heat pump system installed in an existing home.
- Mini-split heat pump (single zone): mini-split systems cost about $3,250 for single-zone units.
- Geothermal heat pump: a geothermal heat pump costs $20,000 to $50,000+ installed on average, with some larger or more complex systems reaching $75,000+.
- Dual-fuel hybrid heat pump (added to existing furnace): adding a supplemental heat pump to an existing furnace may cost between $2,500 and $6,000.
One important 2026 tax note: the IRS says Section 25C applied only to qualifying property placed in service through December 31, 2025, so homeowners cannot subtract that federal credit from a 2026 estimate. State and utility rebates may still apply — check the DSIRE database or ask your contractor. Always confirm current incentives with a licensed tax professional, as eligibility rules vary by situation.
How Much Does a Furnace Replacement Cost?
Furnace replacement costs depend heavily on fuel type — gas, electric, or oil — and efficiency (measured by AFUE rating). Gas furnaces dominate most US markets and carry a wide price range. A gas furnace replacement costs $3,800 to $12,000. Electric and oil systems run somewhat differently:
- Gas furnace: typically $3,800–$12,000 installed
- Electric furnace: an electric furnace replacement costs $1,900 to $5,600.
- Oil furnace: oil furnace replacement costs $2,500 to $6,000.
High-efficiency gas furnaces (96%+ AFUE) cost more upfront but may significantly reduce heating bills in cold climates. If you're replacing just the furnace while keeping an older AC unit, factor in that the two components age together — replacing one and not the other can mean a second major bill within a few years.
How Much Does a Ductless Mini-Split System Cost?
Ductless mini-splits are the go-to solution for room additions, older homes without ductwork, and garages or home offices. They cool and heat individual zones independently. Ductless mini-split ACs cost between $2,000 and $14,500. A single-zone system installed by a professional typically runs $3,000–$5,000; multi-zone setups serving three or four rooms can push well past $10,000.
Replacing a central AC system costs $5,500–$16,000 installed depending on efficiency tier, while a ductless mini-split system runs $4,000–$8,000 per zone — and where good ductwork already exists, central AC wins on cost per square foot. If your home has solid existing ductwork, mini-splits rarely pencil out as a whole-house solution. They shine as targeted supplements.
How Much Does a Boiler Replacement Cost?
Boilers circulate hot water or steam through radiators and baseboard heaters and are common in older Northeast and Midwest homes. Boiler replacement cost averages between $3,700 and $8,300 but can increase to $12,000 for high-efficiency models. Boilers heat water and send steam through radiators and baseboards, unlike furnaces that distribute hot air. If your home runs on a boiler, you're unlikely to retrofit to a forced-air system without significant ductwork expense — so comparing boiler replacement to a full conversion is an important calculation before you decide.
What Hidden Costs Should I Budget For?
The unit price is only part of the story. Several add-on costs routinely surprise homeowners:
- Ductwork: ductwork replacement for a 2,000 sq. ft. home, in addition to HVAC replacement, adds about $2,100 to $4,000.
- Permits: permits for HVAC replacement cost $100 to $250; permits for new HVAC installations with ductwork cost $250 to $1,500.
- Thermostat: thermostat installation costs $140 to $350.
- Old-equipment disposal: removing old HVAC equipment costs $100 to $200, depending on local disposal and refrigerant removal fees.
- Refrigerant transition: the HVAC industry completed its transition from R-410A to R-454B refrigerant for new equipment in 2025, and R-454B costs roughly $17–$20 per pound versus $5–$7 for R-410A — about three times more expensive — pushing equipment prices up an estimated 8–10%.
Budget for permits, ductwork, thermostats, insulation, zone additions, and asbestos removal, often adding $250 to $3,100. If your home is older, get the ductwork inspected before any quote — leaky or undersized ducts can reduce system efficiency by 20–30% regardless of how new the equipment is.
Is HVAC Replacement Worth It? How Do I Evaluate the ROI?
HVAC replacement is worth serious ROI analysis, not just a gut reaction to a broken system. A new, correctly sized system may lower monthly energy costs, can strengthen your home's appeal to buyers, and potentially affects your home insurance considerations (some carriers adjust premiums based on system age and type). These are estimates, not guarantees — actual payback varies by home, climate, utility rates, and market.
A useful rule of thumb: if your current system is more than 10–12 years old and a repair quote exceeds roughly one-third to one-half the cost of a new unit, replacement is usually the smarter long-term financial move. If your heat pump is over 12 years old, or if the repair estimate is more than 40% of the cost of a new unit, replacement is usually the smarter long-term move. The same logic applies to furnaces and central AC units.
Cribfolio's upgrade payback tool can help you model this decision. Once you log your current system, its age, and a contractor's replacement quote, the app estimates the potential value impact and surfaces refinance and insurance considerations you might not have thought to ask about — all so you can walk into contractor conversations informed.
How Do I Keep Track of My HVAC System, Warranties, and Receipts?
Keeping good records of your HVAC system is one of the highest-value organizational habits a homeowner can build. Warranty claims, insurance documentation, and resale disclosures all depend on having the right paperwork at hand — and most homeowners discover they've lost it right when they need it most.
Here's what to keep on file for every HVAC system in your home:
- Equipment model and serial numbers (photo the nameplate)
- Installation date and installer's contact information
- Manufacturer's warranty documents (typically 5–10 years on parts; 10 years on compressors)
- Extended labor warranty, if purchased
- Permit and inspection records
- All service, repair, and maintenance receipts
- Filter size and change schedule
- Refrigerant type (especially important now that R-410A servicing is getting more expensive)
Cribfolio lets you store all of this under each room or appliance in your home file — warranties, receipts, photos, and documents — so everything is searchable and shareable when a contractor, insurance adjuster, or buyer asks. The app also rolls your HVAC's condition and age into the Cribfolio Home Grade, the A–F whole-house score that shows you where your home stands and what's driving the grade up or down.
Does a New HVAC System Affect My Home's Value or Insurance?
A new HVAC system is one of the appliance upgrades that can influence a home's estimated value and its insurability. Appraisers and buyers treat a 15-year-old system very differently from one that's two years old. A modern, high-efficiency system may support a stronger home value estimate, though the exact impact varies by market, home price tier, and how the rest of the home is maintained.
On the insurance side, some carriers ask about system age when setting premiums or coverage terms. An older system with an outdated refrigerant type may trigger questions or exclusions. When you log a new HVAC installation in Cribfolio, the app surfaces these refinance and insurance considerations automatically — prompting you to think about whether a policy review or home equity reassessment makes sense after a major upgrade.
A note on taxes: if you're considering energy-efficiency credits or deductions related to HVAC upgrades, the rules are complex and vary by situation and tax year. Cribfolio helps you track the records; for the actual tax treatment, consult a licensed CPA or tax professional.
Quick-Reference: HVAC Replacement Cost by System Type
- Central AC (swap, existing ductwork): typically $3,900–$10,000+
- Gas furnace: typically $3,800–$12,000
- Electric furnace: typically $1,900–$5,600
- Oil furnace: typically $2,500–$6,000
- Air-source heat pump (ducted): typically $9,400–$16,750
- Ductless mini-split (per zone): typically $2,000–$8,000
- Boiler: typically $3,700–$12,000
- Geothermal heat pump: typically $20,000–$50,000+
- Full system (furnace + AC, with ductwork): typically $7,000–$22,000+
All figures are general ranges that vary by home size, efficiency tier, brand, region, and labor market. Get multiple quotes from licensed contractors before deciding.
Ready to see how your HVAC system affects your home's overall grade — and what a replacement might mean for your home's estimated value? Open Cribfolio, log your system, and see your Cribfolio Home Grade with upgrade payback estimates — free, no guarantees, just clarity.