How much does a new furnace installation cost?

Furnace installation in Nassau County typically ranges from $4,800 to $10,000+, depending on the system size, efficiency rating, and installation complexity. We offer free estimates and flexible financing.

How long does furnace installation take?

Most residential furnace installations are completed in 4-8 hours for a standard replacement. Complex installations with ductwork modifications may take 1-2 days.

What's the difference between single-stage and modulating furnaces?

Single-stage furnaces operate at 100% capacity only. Two-stage has high/low settings. Modulating furnaces adjust in small increments for the most precise comfort and highest efficiency (up to 98% AFUE).

Do I need a permit for furnace installation?

Yes, furnace installations in Nassau County require permits. We handle all permitting and inspections as part of our installation service.

What efficiency rating should I choose?

For Nassau County's climate, we typically recommend 95%+ AFUE furnaces. The higher upfront cost pays for itself through lower monthly bills within 3-5 years.

What warranties do you offer?

All installations include the manufacturer's parts warranty (typically 10 years on heat exchangers) plus our labor warranty ranging from 1-5 years depending on the system tier.

24/7 Emergency(516) 259-1191

High-Efficiency 95%+ AFUE

Furnace Installation in Nassau County, NY

Professional new furnace installation for reliable winter heating, lower energy bills, and long-term comfort.

Call (516) 259-1191 Get Free Estimate

High Efficiency 95%+ AFUE

Top Recommended Furnaces

Our most popular high-efficiency installations—delivering maximum comfort and energy savings for Nassau County homes.

98.5% AFUE Efficiency

Carrier

Infinity 98

AFUE

98.5%

Stages

modulating

Modulating Burner
Variable Speed Blower

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98% AFUE Efficiency

Napoleon

9700 Series

AFUE

98%

Stages

modulating

Modulating Burner
Variable Speed Blower

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95% AFUE Efficiency

RunTru

A95UH2E

AFUE

95%

Stages

two-stage

Two-Stage Heating

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Top Rated

Featured Furnace Brands We Install

Factory-trained technicians for all major manufacturers. Expert installation with manufacturer warranty registration.

Instant Quote Available

Get Your Furnace Installation Quote in 30 Seconds

Just answer a few questions, see your instant quote, and schedule your free home visit. No commitment required.

Instant pricing for 3 system tiers

Available rebates & incentives

Energy savings estimate

Easy scheduling for free home visit

Licensed & Insured

Price Match Guarantee

No Fees

30-Second Quote

Expert Furnace Installation You Can Trust

A properly installed furnace delivers reliable heat, lower energy bills, and years of trouble-free operation. Our certified technicians handle every aspect of your furnace installation—from system sizing and ductwork evaluation to final testing and warranty registration. Serving all of Nassau County with same-day estimates and flexible financing options.

What's Included in Our Furnace Installation

Free in-home consultation and estimate

Complete heating load calculation

Removal and disposal of old furnace

New furnace installation to code

Gas line inspection and connection

Electrical wiring and connections

Thermostat installation and setup

Ductwork evaluation and sealing

Airflow balancing and testing

Safety inspection and CO testing

System startup and calibration

Manufacturer warranty registration

Signs You Need a New Furnace

Furnace is 15-20+ years old

Aging furnaces lose efficiency and require frequent, costly repairs.

Rising energy bills

Older, inefficient furnaces drive up heating costs significantly each winter.

Frequent breakdowns

Multiple repairs per season indicate it's more cost-effective to replace.

Uneven heating throughout home

Some rooms too hot, others too cold—system can no longer distribute heat properly.

Yellow pilot light

A yellow flame can indicate carbon monoxide concerns requiring immediate replacement.

Strange noises

Loud banging, rattling, or screeching indicates serious internal wear.

Current Offers

Deals & Savings

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HEATING SPECIAL

$500 OFF

Furnace Installation

Save $500 on a new high-efficiency furnace installation with our 10-year labor warranty.

Exp. June 30, 2026

HEATING SPECIAL

$500 OFF

Boiler Installation

Save $500 on a new boiler installation. High-efficiency models available with financing options.

Exp. June 30, 2026

INSTALL SAVINGS

$200 OFF

Water Heater Installation

Save $200 on a new water heater installation. Tank and tankless options available.

Exp. June 30, 2026

Our Professional Furnace Installation Process

Our Simple Process

From call to comfort in 5 easy steps

Free In-Home Assessment

We evaluate your home's heating needs, ductwork, and existing system to recommend the right furnace size and efficiency level.

Detailed Quote & System Selection

We provide transparent pricing for multiple furnace options so you can choose what fits your budget and needs.

Safe Removal of Old Furnace

We disconnect and remove your old equipment safely, including proper disposal.

Professional Installation

Our certified technicians install your new furnace to manufacturer specifications and local codes, including all permits.

Testing & Commissioning

We thoroughly test your new system, balance airflow, and ensure optimal performance before leaving.

Why Choose Homets Air for Furnace Installation

Certified Installation Experts

Our technicians are factory-trained and certified on all major furnace brands including Carrier, Lennox, and Trane.

Upfront, Honest Pricing

No fees or surprise charges—you know the complete cost before we start.

High-Efficiency Options

We specialize in modulating furnaces that deliver up to 98%+ AFUE efficiency ratings.

Comprehensive Warranties

All installations include strong manufacturer and workmanship warranties for peace of mind.

Repair or Replace?

We'll help you make the right decision for your home and budget

Repair Your Furnace

Furnace is less than 10 years old
Only one component has failed
Repair cost is under $800
System still heats efficiently
Heat exchanger is not cracked

Replace Your Furnace

Furnace is 15+ years old
Multiple components failing
Repair cost exceeds $1,500
Energy bills keep rising
Frequent breakdowns each season
Heat exchanger is cracked

Need Help Deciding? Talk to an Expert

Already have a furnace that needs service?

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Flexible Financing Available

Don't let budget concerns delay your comfort. We offer flexible financing options through Synchrony Bank to make upgrading your system affordable with low monthly payments.

Quick approval

0% interest options

Flexible terms

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