Furnace Replacement Cost Guide

How Much Does Furnace Replacement Cost in NJ?

Typical gas furnace replacement in Central NJ runs $4,500–$12,000, depending on AFUE efficiency rating, BTU size, and brand. Federal IRA credits and NJ rebates apply on high-efficiency models.

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What Drives Furnace Replacement Cost

Six things move the number more than anything else.

AFUE Efficiency Rating

80% AFUE (entry): $4,500-$6,500. 92-95% AFUE (mid): $6,500-$9,000. 95-98% AFUE (premium, condensing): $8,500-$12,000. High-efficiency qualifies for rebates.

BTU Size

Most NJ homes need 60,000-100,000 BTU. Each step up adds $300-$600 in equipment. Proper sizing matters — oversized furnaces short-cycle and damage themselves.

Brand Tier

GE/Goodman value: $4,500-$6,500. Carrier/Trane standard: $6,500-$9,000. Carrier Infinity / Trane XV / Lennox Signature: $9,500-$13,000.

Venting Modifications

80% AFUE = chimney vent (usually existing, $0). 90%+ AFUE = direct vent through wall ($300-$800 added). Going from oil to gas: $1,500-$3,000 line + venting work.

Gas Line Work

Existing gas line: $0. Upsizing for higher-BTU furnace: $400-$900. New gas line run from meter: $1,200-$2,500. Heat-pump conversion avoids gas line entirely.

Simple, Upfront Pricing

Know What You’ll Pay. Every Time.

Clear options, clear written options. Every quote includes parts, labor, and our written support.

A/C Maintenance

$188
Preventive maintenance visit
  • Multi-point AC inspection
  • Clean condenser coils
  • Check refrigerant levels
  • Test thermostat & controls
  • Priority scheduling included

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New Install / Replacement

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Custom estimate, no obligation
  • In-home sizing assessment
  • Multiple system options quoted
  • Financing & rebate guidance
  • available manufacturer warranty options
  • Same-team removal & install

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Our Process

How a Service Call Actually Goes

No mystery fees, no pressure, no sales pitch. Here’s exactly what happens from your first call to the last handshake.

01

Schedule

Book online or call (908) 284-2422. We call back within 30 minutes during business hours.

02

Diagnose

A factory-trained tech arrives on time, identifies the issue, and walks you through exactly what we found.

03

Upfront Quote

You get a written quote before any work begins. Approve it or walk away — no pressure, clear written options.

04

Repair & Support

We fix it — often quick — and back every repair with a 2-year parts & labor warranty.

Reviews

What Our Customers Say

4.9750+ Google reviews
Ken C.
Flemington, NJ

★★★★★

After our second-floor AC went out, Kayla called before 8 the next morning and Hilmi had us back in business by 9:30.

3 weeks ago
Edward D.
Bridgewater, NJ

★★★★★

Outstanding professional service. The team went above and beyond to fix the problem while communicating throughout.

1 month ago
Daniela D.
Hillsborough, NJ

★★★★★

Very professional, reliable, and knowledgeable. I would highly recommend them to friends and neighbors.

2 months ago
What’s the average cost of a new furnace in NJ?
Most NJ replacements land in the $6,500–$9,000 range for a mid-efficiency, mid-tier system installed. Budget builds (80% AFUE, GE-tier) start $4,500. Premium (95%+ AFUE, Carrier Infinity) up to $12,000.
When should I replace my furnace?
for years old. Repair cost > 50% of new system. Cracked heat exchanger (safety issue). Heating bills spiking. More on when to replace.
Is high-efficiency furnace worth it?
98% AFUE saves about 18% on heating bills vs 80% AFUE. On a $2,000/yr heating bill, that’s $360/yr. Premium pays back in 5-8 years, plus rebates offset upfront cost.
How long does furnace replacement take?
Standard swap (same type, same location): 1 day. Switching from oil to gas: 2-3 days (line + venting + tank removal). Adding ductwork: 2-3 days additional.
Can I finance furnace replacement?
Yes — all 4 lender programs available. Special financing available, subject to credit approval. Monthly payments typically $100-$200 for $6K-$10K furnaces.
What about going from gas to heat pump?
Federal tax credits and state/utility rebates may be available for heat pump upgrades — ask us about current programs. NJ Clean Energy adds more. Compare heat pump install costs with our rebate-aware estimate.
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