Furnace Install on Long IslandWarm winters. Lower bills.
Up to 98% AFUE furnaces from Carrier, Lennox, Trane, and Rheem — installed and warrantied by Long Island's local pros.
- Up to 98% AFUE efficiency
- Variable-speed blower options
- 10-year parts warranty
- Free in-home consultation
Furnace Installation across Nassau & Western Suffolk
Long Island HVAC Repair installs 95–98% AFUE high-efficiency gas furnaces from Carrier, Lennox, Trane, and Rheem across Nassau and Western Suffolk. A modern variable-speed furnace can cut winter gas bills by 20–30% versus a 15-year-old unit. Most replacements complete in 6–8 hours with up to a 10-year parts warranty and National Grid / PSEG rebates filed for you.
A modern 96%+ AFUE furnace can cut your winter gas bill by 20–30% versus a 15-year-old unit. We size, install, and commission every system the right way.
Choose the right system for your home
Lowest install cost. Best for short-term ownership or budget builds. Vents up an existing chimney.
Most popular for Long Island. Sealed combustion, PVC venting, 20% lower bills than 80% units.
Top tier. Continuously matches output to demand. Quietest, most efficient, best comfort.
Three tiers — same flawless install
Every quote includes Manual-J sizing, permits, removal of your old system, and our lifetime workmanship guarantee.
- Carrier or Rheem single-stage 80% AFUE
- Vents up existing chimney
- Standard PSC blower motor
- Programmable thermostat
- Permit pull & inspection included
- Trane S9V2 or Carrier 59SC5 two-stage
- ECM variable-speed blower
- PVC sealed-combustion venting
- Wi-Fi smart thermostat included
- National Grid rebate filed for you
- Lennox SLP99V or Carrier Infinity 98
- Fully modulating gas valve (40–100%)
- Whisper-quiet variable-speed blower
- Up to 30% lower winter gas bills
- Maximum National Grid + NYSERDA rebates
Let us file every form for you
We file every form for you. Most Long Island homeowners qualify for $800–$1,800 in stacked utility and tax incentives on high-efficiency furnaces.
Eligibility depends on equipment, household income, and current program funding. We confirm exact amounts during your free in-home quote.
Heat now — pay over time
Through Synchrony Home — the same financing trusted by HVAC dealers nationwide. Soft credit pull only, decision in under a minute.
- Decision in 60 seconds
- $0 down on approved credit
- Synchrony Home — trusted nationally
- No prepayment penalties
Which option is right for you?
Your AC is under 8 years old and your home has gas service.
Both are 12+ years old — bundled installs save $1,500–$3,000.
You want to electrify, qualify for $2,000 federal credit, and skip combustion entirely.
What's included in every furnace installation
Every visit follows the same documented checklist — so nothing gets skipped and you get a written report at the end.
Book a visitLong Island furnace install cost ranges
Real numbers based on actual installs across Nassau and Western Suffolk. Final pricing depends on your home — we always quote in writing before any work begins.
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80% AFUE single-stage
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$3,800–$5,400 |
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95% AFUE two-stage
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$5,800–$8,200 |
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97–98% AFUE variable-speed
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$8,500–$12,500 |
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Oil-to-gas conversion (full)
Includes line, meter, removal
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$9,500–$15,000 |
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Add new condensate pump
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+$280–$450 |
Pricing reflects typical Long Island ranges. Equipment, complexity, and incentives may increase or reduce your final cost.
What to expect, step by step
We measure, run a heat-loss calculation, and check venting + combustion air.
Three options — good, better, best. Total install price including permit, disposal, rebate filing.
Drop cloths down, old unit out, new furnace set, vented, gas-piped, commissioned with combustion analyzer.
Town permit closed out, manufacturer warranty registered, lifetime workmanship guarantee in writing.
Long Island homes, treated like our own
Every furnace install job starts with shoe covers, drop cloths, and a walk-through with the homeowner. We document with photos, explain what we found, and quote in writing — no surprises.
- Background-checked, uniformed technicians
- Photos of every issue, before & after
- Flat-rate pricing approved before we start
Every major HVAC brand, serviced and installed
Infinity 98 modulating gas furnaces with Greenspeed intelligence — top efficiency and the quietest blower on the market. Our top recommendation for whole-home comfort.
S9V2 and XC95m two-stage and modulating units. Aluminized steel heat exchangers with industry-leading 20-year warranty. Built to last in Long Island basements.
SLP99V variable-capacity — up to 99% AFUE, the highest efficiency available. Best for clients prioritizing rebates and lifetime fuel savings.
Endeavor Line Prestige R98V — strong value with excellent two-stage performance and easy parts availability across Nassau County.
Furnace Install across Long Island
We dispatch from Levittown to every town in Nassau and Western Suffolk. Tap your town for local install notes and direct booking.
- →Furnace Install in Babylon
- →Furnace Install in Baldwin
- →Furnace Install in Bellmore
- →Furnace Install in Bethpage
- →Furnace Install in Deer Park
- →Furnace Install in East Meadow
- →Furnace Install in Farmingdale
- →Furnace Install in Freeport
- →Furnace Install in Garden City
- →Furnace Install in Hempstead
- →Furnace Install in Hicksville
- →Furnace Install in Jericho
- →Furnace Install in Levittown
- →Furnace Install in Lindenhurst
- →Furnace Install in Massapequa
- →Furnace Install in Massapequa Park
- →Furnace Install in Merrick
- →Furnace Install in Mineola
- →Furnace Install in North Bellmore
- →Furnace Install in North Massapequa
- →Furnace Install in North Wantagh
- →Furnace Install in Old Bethpage
- →Furnace Install in Oyster Bay
- →Furnace Install in Plainedge
- →Furnace Install in Plainview
- →Furnace Install in Rockville Centre
- →Furnace Install in Salisbury
- →Furnace Install in Seaford
- →Furnace Install in South Farmingdale
- →Furnace Install in Syosset
- →Furnace Install in Uniondale
- →Furnace Install in Wantagh
- →Furnace Install in West Hempstead
- →Furnace Install in Westbury
- →Furnace Install in Williston Park
- →Furnace Install in Wyandanch
Furnace Install questions, answered
Most direct furnace replacements take 6–8 hours. Oil-to-gas conversions and complete system replacements (furnace + AC) typically take 1–2 days.
$3,800–$5,400 for an 80% AFUE single-stage unit, $5,800–$8,200 for a 95%+ two-stage, and $8,500–$12,500 for a top-tier modulating variable-speed system.
Usually no — but we always inspect for leaks, undersized returns, and balance issues. Sealing existing ducts often delivers more comfort than swapping equipment.
Annual Fuel Utilization Efficiency. 80% means 80% of fuel energy becomes heat. For Long Island winters, 95%+ pays back in 5–8 years through gas savings.
National Grid offers up to $1,200 on qualifying high-efficiency gas furnaces. NYSERDA adds incentives on whole-home efficiency upgrades. We file all paperwork.
If gas is available on your street, conversion typically pays back in 4–7 years on fuel savings alone, plus utility incentives often cover $2,000+ of the conversion cost.
Yes — Synchrony 0% APR for 12 months on approved credit, plus low-monthly plans up to 120 months. Most homeowners are approved instantly.
Up to 10-year parts and 20-year heat exchanger from major manufacturers (with registration). We add 1-year labor and lifetime workmanship guarantee.
Go beyond the equipment.
Pair furnace install with one of our whole-home comfort solutions — designed for Long Island climates, ductwork, and rebate stacks.
Whole-Home Zoned Comfort
End hot upstairs, cold downstairs with ductless, ducted zoning, or variable-capacity heat pumps.
Indoor Air Quality
MERV-13/16 filtration, whole-home dehumidifiers, UV-C, and ERV ventilation systems.
Rebates & Financing
Stack PSEG, NYSERDA, and federal IRA incentives with $0-down Synchrony financing.
Need furnace install on Long Island?
Talk to a real Long Island technician — same-day appointments, flat-rate pricing, and a 1-year warranty on every visit.