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2026 Furnace & Full HVAC Cost Summary (Quick Answer)
Average Furnace Costs in 2026 by Fuel Type
Furnace Cost by Home Size (2026)
How Much Does a Full Furnace + AC Replacement Cost in 2026?
What Affects Furnace and AC Replacement Costs?
Why Replace Your Furnace and AC Together?
What to Know Before Replacing Your HVAC System
Cost Breakdown: Furnace & AC Replacement (2026)
How to Save on a New Furnace and AC (2026)
Schedule Service to Have Sears Home Services Check Your Furnace System
Frequently Asked Questions
How Much Does a New Furnace Cost in 2026? (Full 2026 Pricing Guide)
A new furnace can cost anywhere from $3,500 to $7,500 in 2026, depending on fuel type, efficiency, and installation requirements. If you're replacing both the furnace and air conditioner, most homeowners spend $5,000 to $15,000 for a complete system upgrade. This guide breaks down equipment prices, installation fees, efficiency considerations, and ways to reduce your total investment.
KEY TAKEAWAYS
- A new furnace costs $3,500–$7,500 in 2026, depending on fuel type, home size, and efficiency.
- Replacing the furnace and AC together typically ranges from $5,000–$15,000 and offers better long-term efficiency and reliability.
- Rebates, tax credits, and proper system sizing can significantly reduce total installation cost while improving performance.
2026 Furnace & Full HVAC Cost Summary (Quick Answer)
- New furnace installation: $3,500–$7,500
- New furnace + AC system: $5,000–$15,000
- Typical homeowner spends: about $8,000 for a mid-efficiency paired system
- Highest-impact factors: home size, efficiency, fuel type, installation complexity
- Savings opportunities: utility rebates, federal tax credits, off-season installation discounts
Average Furnace Costs in 2026 by Fuel Type
| Furnace Type | Typical Price (Installed) | Notes |
|---|---|---|
| Natural Gas (80%–96% AFUE) | $3,500–$7,500 | Most common; strong balance of cost and efficiency |
| Electric Furnace | $2,800–$5,500 | Lower upfront cost but higher operating cost in cold climates |
| Propane Furnace | $4,000–$7,500 | Popular in rural areas; similar to gas but higher fuel cost |
| Oil Furnace | $5,500–$9,000 | Higher price and maintenance needs |
Furnace Cost by Home Size (2026)
Sizing requirements have one of the biggest impacts on cost. Below is a typical range based on common home square footage:
| Home Size (sq ft) | Furnace Size (BTU) | Typical Installed Cost |
|---|---|---|
| 800–1,200 | 40,000–60,000 BTU | $3,200–$5,000 |
| 1,200–2,000 | 60,000–90,000 BTU | $3,800–$6,500 |
| 2,000–3,000+ | 90,000–120,000 BTU | $5,500–$7,500 |
Proper sizing ensures efficiency and comfort. An oversized furnace wastes energy and shortens equipment life.
How Much Does a Full Furnace + AC Replacement Cost in 2026?
In 2026, most homeowners replacing both systems together spend:
- Standard efficiency: $5,000–$9,000
- Mid-efficiency: $7,500–$12,500
- High-efficiency / advanced systems: $12,000–$18,000+
System bundles often qualify for better rebates and reduce total labor hours compared to replacing each system separately.
What Affects Furnace and AC Replacement Costs?
1. System Size & Capacity
Larger homes require higher-capacity furnaces and air conditioners. This directly affects equipment cost and installation time.
2. Efficiency Rating
Higher-efficiency units (90%+ AFUE furnaces and 16+ SEER ACs) cost more but can reduce energy bills by several hundred dollars per year.
3. Fuel Type
Gas is typically the most cost-effective long-term. Electric furnaces cost less upfront but more to operate in cold regions.
4. Installation Complexity
New furnace costs increase if your home needs:
- New ductwork
- Ventilation changes
- Electrical upgrades
- Condensate drainage or flue modifications
5. Rebates & Tax Credits
Many homeowners qualify for:
- Federal tax credits for high-efficiency furnaces and heat pumps
- Utility rebates
- Manufacturer promotions
- Seasonal installation discounts
Why Replace Your Furnace and AC Together?
Replacing both units at the same time offers clear advantages:
Higher Energy Efficiency
Modern HVAC systems are engineered to operate as a matched pair, improving comfort and reducing energy use.
Here’s an image that illustrates a hybrid, high-efficiency furnace/heat pump system that can save you money on energy costs:
Better Long-Term Reliability
Older equipment paired with newer components can create airflow and control mismatches, adding wear and tear.
Lower Installation Costs
A single job reduces labor fees and often unlocks higher rebate tiers.
What to Know Before Replacing Your HVAC System
Before moving forward with installation, consider:
- Age & repair history of current equipment
- Your long-term plans for the home (efficiency upgrades pay off over time)
- System compatibility (mixing old and new components can reduce performance)
- Local climate (fuel choice and efficiency level matter more in colder regions)
A professional evaluation helps avoid oversizing or undersizing the system.
At Sears Home Services, our HVAC professionals help you evaluate your home’s needs, recommend the right system, and ensure proper installation. Schedule HVAC repair service to have a technician examine your system and to learn what options work best for you.
Cost Breakdown: Furnace & AC Replacement (2026)
| Cost Factor | Typical Impact |
|---|---|
| Equipment | 40%–60% of total cost |
| Labor | 30%–50% of total cost |
| Permits | $100–$500 depending on region |
| Ductwork Modifications | $500–$3,000 if needed |
| Efficiency Upgrades | Adds $500–$2,500 |
Average total cost: $5,000–$15,000
Typical 2026 homeowner cost: around $8,000
How to Save on a New Furnace and AC (2026)
1. Check Local Rebates and Federal Tax Credits
High-efficiency furnaces and heat pumps often qualify for substantial incentives.
Check the ENERGY STAR furnace tax credits page for details on incentives you may be eligible for. That page also has a rebate finder that provides details of utility provider, state, and local rebates that may be available to you in your area.
2. Compare Multiple Estimates
Pricing varies widely between contractors.
3. Install During Off-Peak Seasons
Spring and fall installations often come with promotions.
4. Choose the Right Efficiency Level
Ultra-high efficiency isn’t always cost-effective in mild climates.
5. Ensure Proper Sizing
Oversized systems increase both upfront and operating costs.
Schedule Service to Have Sears Home Services Check Your Furnace System
Have a Sears technician check evaluate your current furnace and provide recommendations for furnace repair or installation of a new furnace heating system.
Schedule furnace repair service now to repair or replace your furnace.
Frequently Asked Questions
How much does a new furnace cost?
In 2026, most homeowners pay $3,500–$7,500 for a professionally installed furnace, depending on size, efficiency, and fuel type.
Is it cheaper to replace my furnace and AC together?
Yes. Combined replacement lowers labor costs, improves efficiency, and often qualifies for better rebates.
What affects furnace price the most?
Home size, furnace efficiency rating, installation complexity, and fuel type.
Are rebates available for new furnaces?
Many homeowners qualify for federal tax credits and local utility incentives for high-efficiency furnaces or heat pumps.
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