How much does a new HVAC system cost?

A complete HVAC system (furnace + AC) costs $7,000-$15,000 installed. AC-only replacement costs $3,500-$7,500, while furnace-only costs $3,000-$6,500. Heat pumps range from $4,000-$8,000 for standard units to $12,000-$20,000 for high-efficiency models.

How often should HVAC be replaced?

Furnaces typically last 15-20 years, air conditioners last 15-20 years, and heat pumps last 10-15 years. If your system is 15+ years old and needs major repairs, replacement is usually more cost-effective.

Is it cheaper to replace AC and furnace together?

Yes — replacing both together typically saves $500-$1,500 on labor costs since technicians only need to access the system once. New systems are also designed to work together efficiently, so matched components perform better.

HVAC Cost: How Much to Replace Heating & Cooling Systems (2026)

HVAC Replacement Costs Overview

System Type	Average Cost (Installed)	Range
Central AC only	$5,500	$3,500-$7,500
Furnace only	$4,500	$3,000-$6,500
AC + Furnace combo	$10,500	$7,000-$15,000
Heat pump	$5,500	$4,000-$8,000
Ductless mini-split	$3,500	$2,000-$5,000 per zone
Heat pump + furnace (dual fuel)	$8,500	$6,000-$12,000

Air Conditioner Replacement Cost

By Unit Size

Home Size	AC Size (Tons)	Unit Cost	Installed Cost
1,000 sq ft	1.5-2 tons	$1,500-$2,500	$3,000-$5,000
1,500 sq ft	2-2.5 tons	$2,000-$3,000	$3,500-$5,500
2,000 sq ft	2.5-3 tons	$2,500-$3,500	$4,000-$6,500
2,500 sq ft	3-3.5 tons	$3,000-$4,500	$5,000-$7,500
3,000+ sq ft	4-5 tons	$4,000-$6,000	$6,500-$9,000

By Efficiency (SEER Rating)

SEER Rating	Efficiency Level	Cost Premium	Annual Savings*
14-15 SEER	Standard	Baseline	Baseline
16-17 SEER	Good	+$500-$1,000	$100-$150/yr
18-20 SEER	High	+$1,000-$2,000	$200-$300/yr
21+ SEER	Premium	+$2,000-$4,000	$300-$400/yr

*Savings compared to baseline 14 SEER unit in moderate climate

Furnace Replacement Cost

By Fuel Type

Fuel Type	Unit Cost	Installed Cost	Operating Cost
Natural gas	$1,500-$3,500	$3,000-$6,000	Lowest
Propane	$1,500-$3,500	$3,500-$6,500	Medium
Oil	$2,000-$4,000	$4,000-$7,000	Higher
Electric	$1,000-$2,500	$2,500-$5,000	Highest

By Efficiency (AFUE)

AFUE Rating	Efficiency Level	Unit Cost	Operating Efficiency
80%	Standard	$1,500-$2,500	80¢ per $1 of fuel
90-95%	High-efficiency	$2,500-$4,000	90-95¢ per $1
96-98%+	Ultra-efficient	$3,500-$5,000	96-98¢ per $1

Heat Pump Costs

Air-Source Heat Pumps

Efficiency Level	Unit Cost	Installed Cost	Cold Climate?
Standard (14-15 SEER)	$2,000-$3,500	$4,000-$6,500	No
High-efficiency (16-18 SEER)	$3,000-$5,000	$5,500-$8,500	Some
Cold-climate rated	$4,000-$6,000	$7,000-$10,000	Yes

Ground-Source (Geothermal) Heat Pumps

Factor	Cost
Equipment	$3,000-$8,000
Ground loop installation	$10,000-$20,000
Total installed	$15,000-$30,000
Federal tax credit (30%)	-$4,500 to -$9,000
Net cost	$10,500-$21,000

Ductless Mini-Split Costs

Zones	BTU Coverage	Installed Cost
Single zone	Up to 1,500 sq ft	$2,000-$5,000
2-zone	Up to 2,500 sq ft	$4,000-$8,000
3-zone	Up to 3,500 sq ft	$6,000-$12,000
4-zone	Up to 5,000 sq ft	$8,000-$16,000

Mini-Split Pros and Cons

Pros	Cons
No ductwork needed	Higher cost per zone
Zoned temperature control	Visible indoor units
Highly efficient	Requires unit in each room/zone
Cooler and heats	Professional installation required

What Affects HVAC Installation Cost

Major Cost Factors

Factor	Impact on Cost
Home size	Larger = more capacity needed
Existing ductwork	New/modified ducts: +$2,000-$5,000
Accessibility	Difficult access: +$500-$1,500
Electrical upgrades	May need panel upgrade: +$1,000-$3,000
Permits	$100-$500 in most areas
Labor rates	Varies 50%+ by region
Unit brand	Premium brands cost more
Efficiency level	Higher SEER/AFUE = higher cost

Regional Cost Variation

Region	Cost vs National Average
Northeast	+15-25%
Southeast	-5-10%
Midwest	Average
Southwest	Average
West Coast	+10-20%

Should You Repair or Replace?

The 50% Rule

If repair cost is…	And system age is…	Action
<50% of replacement	Under 10 years	Repair
<50% of replacement	10-15 years	Consider replacing
>50% of replacement	Any age	Replace
Any cost	15+ years	Replace

Signs You Need Replacement

Sign	What It Means
System is 15+ years old	Near or past useful life
Frequent repairs	Accumulating costs not worth it
Rising energy bills	Efficiency declining
Uneven temperatures	System can’t maintain comfort
Strange noises	Mechanical failure approaching
High humidity issues	System not properly sized/functioning
Uses R-22 refrigerant	Phased out, expensive to service

HVAC Financing Options

Typical Financing Terms

Option	Terms	Best For
HVAC company financing	0% for 12-24 months	Short-term payoff
Home equity loan	6-8% for 5-15 years	Larger projects
Personal loan	8-15% for 2-7 years	No home equity
Credit card	0% intro (12-21 mo)	Quick payoff

Financing Example

Loan Amount	Term	APR	Monthly Payment
$10,000	12 months (0%)	0%	$833
$10,000	5 years	8%	$203
$10,000	10 years	8%	$121

Tax Credits & Rebates

Federal Tax Credits (2026)

Equipment	Credit Amount
Qualified heat pump	30% of cost (up to $2,000/yr)
Qualified furnace/boiler	30% (up to $600/yr)
Qualified AC	30% (up to $600/yr)
Geothermal heat pump	30% (no cap)

Requirements for Credits

Requirement	Details
Efficiency minimum	Varies by equipment type
Principal residence	Primary home required
New equipment	Not used/refurbished
Form needed	IRS Form 5695

Utility Rebates

Source	Typical Rebate
Electric utility	$100-$500 for high-efficiency AC/heat pump
Gas utility	$100-$400 for high-efficiency furnace
State programs	Varies widely

How to Get the Best Price

Shopping Tips

Strategy	Savings Potential
Get 3+ quotes	Up to 20-30% difference
Shop off-season	Fall/spring discounts
Negotiate	Ask for price match
Bundle HVAC + water heater	Multi-project discount
Ask about rebates	Contractor may not mention

Questions to Ask Contractors

Question	Why It Matters
Is estimate in writing?	Avoid surprise charges
Is equipment price broken out?	Compare apples to apples
What’s included?	Permits, delivery, disposal
What warranty?	Equipment + labor coverage
License and insurance?	Protects you
When can you start?	Timeline expectations

HVAC Lifespan & Maintenance

Average System Lifespan

System	Average Lifespan	With Maintenance
Central AC	15-20 years	Up to 25 years
Furnace (gas)	15-20 years	Up to 25 years
Heat pump	10-15 years	Up to 20 years
Ductless mini-split	15-20 years	Up to 25 years

Maintenance Costs

Service	Frequency	Cost
Annual tune-up	Yearly	$150-$300
Filter replacement	Monthly-quarterly	$15-$50/filter
Duct cleaning	Every 3-5 years	$300-$500
Refrigerant recharge	As needed	$150-$400

Bottom Line

A new HVAC system is a significant investment at $7,000-$15,000 for a complete replacement. Key ways to save:

Get multiple quotes — prices vary 20-30%
Consider efficiency — higher upfront cost = lower bills
Claim tax credits — up to $2,000 for heat pumps
Check utility rebates — additional $100-$500
Replace both units together — save on labor

Best approach: Budget for replacement when your system hits 15 years old, even if it’s still working. Emergency replacements cost 10-20% more and limit your options.

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