How much does HVAC replacement cost in Nassau County?

Planning ranges vary by scope. Current Home+ guides place furnace replacement around $4,800–$9,500, AC replacement around $5,200–$12,000, heat-pump installation around $7,500–$15,000, and a matched AC plus furnace or air-handler system around $12,000–$22,000. Ductwork, electrical upgrades, access, efficiency, and permits can change the final price, so use a written in-home estimate for decisions.

Should I replace my entire HVAC system at once?

Not always. Replacing both heating and cooling equipment can improve compatibility when both components are aging or a matched indoor-outdoor combination is required. If one component is newer, reliable, and compatible, a single-component replacement may be more economical. We show both paths when both are technically viable.

What HVAC rebates are available in 2026?

The federal Energy Efficient Home Improvement Credit ended for property placed in service after December 31, 2025. PSEG Long Island Home Comfort rebates may still apply to qualifying 2026 heat-pump projects, but equipment, sizing, income-tier, contractor, and project-cap rules apply. We confirm current program eligibility in writing rather than promising a fixed rebate.

How do I know whether to repair or replace my HVAC system?

Consider the equipment age, safety, repair history, parts availability, refrigerant, comfort performance, and the cost of the proposed repair relative to a properly scoped replacement. A diagnosis and written comparison are more useful than a single age or percentage rule.

Can a heat pump replace my furnace and air conditioner?

A properly selected heat pump can provide both heating and cooling. Some homes use an all-electric heat pump, while others keep a furnace as backup in a dual-fuel system. The correct design depends on the heating load, ductwork, electrical capacity, fuel costs, and comfort preferences.

How long does HVAC replacement take?

A straightforward component replacement may be completed in a day. Matched systems, duct modifications, electrical work, access constraints, and permitting can extend the project. Your proposal should state the expected on-site schedule and any prerequisites before work begins.

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HVAC Replacement in Nassau County

Compare repair versus replacement, equipment options, installed scope, and current incentives before you choose a new system.

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Licensed & Insured

Written Installed Pricing

2026 Utility Rebates Reviewed

Expert HVAC Replacement in Nassau County

Home+ Air & Heat replaces central air conditioners, furnaces, heat pumps, boilers, and matched heating-and-cooling systems throughout Nassau County. We assess the existing equipment, ductwork, electrical requirements, and comfort problems before presenting written options. Your proposal identifies the equipment, installed scope, warranty terms, permit responsibility, and any current financing or utility-program conditions.

Replacing both sides of a split system can make sense when the indoor and outdoor equipment are both aging, no longer compatible with current equipment, or repeatedly failing. A single-component replacement may be the better value when the remaining equipment is in good condition and a compatible match is available. The right answer depends on the home and the existing system, so we explain the tradeoffs instead of assuming every repair call needs a full replacement.

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When to Replace vs. Repair Your HVAC System

Use these indicators to make the right decision for your home and budget

Rising Energy Use

Compare normalized utility use, system runtime, and comfort before blaming the equipment alone. Duct leakage, controls, insulation, and rate changes can also increase bills.

Frequent or Major Repairs

Repeated failures, unavailable parts, or a major repair on aging equipment can make replacement worth comparing. Ask for both repair and replacement scopes in writing.

System Age (15+ Years)

Furnaces last 15-20 years, AC units 12-15 years, and heat pumps 10-15 years. If your equipment is past its expected lifespan, efficiency drops sharply.

Uneven Temperatures

Hot and cold spots, humidity issues, or rooms that never reach the right temperature signal a system that can no longer meet your home's demands.

Signs Your HVAC System Needs Replacement

If 3 or more of these apply, replacement is likely more cost-effective than continued repairs

System is 15+ years old

Repair costs exceeding $1,000/year

Uses R-22 refrigerant (phased out)

AFUE below 80% or SEER below 13

Frequent cycling on/off

Strange noises or odors

Visible rust or corrosion

Carbon monoxide detector alerts

2026 HVAC Rebates and Financing

PSEG Long Island Home Comfort rebates may apply to qualifying heat-pump projects. Equipment, sizing, income tier, participating-contractor, and project-cap rules determine the actual amount. The federal 25C home-improvement credit ended for equipment placed in service after December 31, 2025.

Verify current rules with the IRS Form 5695 instructions and PSEG Long Island Home Comfort program.

PSEG-LI

Qualifying 2026 projects

Written Terms

Eligibility and amount confirmed

Financing

Current APR and term disclosed

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Why Choose Us for HVAC Replacement?

Written equipment and installed-scope options

AC, furnace, heat-pump, boiler, and matched-system replacement

Existing ductwork and electrical requirements reviewed

Permit and warranty responsibility identified

Current financing terms provided in writing

Old-equipment removal included when stated in the proposal

HVAC Brands We Install

Factory-trained technicians for all major HVAC manufacturers

TraneThe Apple of HVACFactory Authorized

Mitsubishi ElectricGold Standard for DuctlessFactory Authorized

BoschGerman Engineering ExcellencePreferred Partner

CarrierThe OG of Air ConditioningFactory Authorized

LennoxPremium High-EfficiencyFactory Authorized

American StandardTrane's Smarter TwinPreferred Partner

RheemReliable & Drama-FreePreferred Partner

BryantCarrier's Quieter SiblingCertified

GoodmanHonest ValueCertified

RuudRheem's Reliable TwinCertified

DaikinWorld's Largest HVAC ManufacturerFactory Authorized

LGSurprisingly LegitPreferred Partner

Don't see your brand? We service all major manufacturers! Call us to confirm.

HVAC Replacement Costs on Long Island

Planning ranges for Nassau County. Final price depends on capacity, equipment tier, ductwork, electrical work, access, and permits.

Replacement Job	Efficiency	Installed Price	Typical Scope
AC-Only Replacement	Model-specific SEER2	$5,200 – $12,000	Outdoor unit plus compatible indoor coil or air handler
Furnace-Only Replacement	Model-specific AFUE	$4,800 – $9,500	Furnace, connections, startup, and stated removal scope
Heat Pump Installation	Model-specific SEER2 / HSPF2	$7,500 – $15,000	Heating and cooling; electrical or duct changes may add cost
Matched AC + Furnace or Air Handler	Matched-system ratings	$12,000 – $22,000	Both indoor and outdoor equipment replaced as one scope

These ranges are not quotes. Current rebate eligibility and financing terms are provided in writing for the equipment and project selected.

Our HVAC Replacement Process

Home Assessment

We inspect the existing equipment, airflow, ductwork, electrical capacity, and comfort concerns.

Written Options

You receive equipment choices with efficiency, installed scope, exclusions, warranties, and pricing identified.

Professional Installation

The selected system is installed, connected, and commissioned to the written scope and applicable code requirements.

Startup and Walkthrough

We test operation and airflow, document the completed work, and explain controls and maintenance needs.

Typical installed ranges depend on equipment capacity, efficiency tier, ductwork, electrical work, access, and permit requirements. Your written proposal controls; advertised ranges are planning guidance, not a quote.

HVAC Replacement Service Areas

System replacement across Nassau County

From our Jericho office, we serve Jericho, Syosset, Hicksville, Woodbury, Plainview, Westbury, Old Westbury, Bethpage, Mineola, Carle Place, East Meadow, Old Bethpage, New Cassel, Williston Park, Garden City, Levittown, Hempstead, Uniondale, Farmingdale, Bellmore, North Bellmore, Wantagh, Manhasset, Great Neck, Roslyn, New Hyde Park, Floral Park, Glen Cove, Oyster Bay, Locust Valley, Brookville, Port Washington, and surrounding communities.

Jericho5-min from our office SyossetHigh-efficiency systems HicksvilleSame-day service WoodburyLocal HVAC experts PlainviewSame-day appointments WestburyAll brands serviced Old WestburyPremium service BethpageFast local service MineolaFast local service Carle PlaceQuick response zone East MeadowAll systems serviced Old BethpageResidential specialists New CasselReliable HVAC service Williston ParkLocal experts Garden CityHistoric home specialists LevittownPost-war home experts HempsteadAffordable service UniondaleReliable local service FarmingdaleAll brands serviced BellmoreSame-day appointments North BellmoreFast response WantaghLocal HVAC service ManhassetPremium HVAC service Great NeckPremium service RoslynExpert technicians New Hyde ParkFast local service Floral ParkResidential service Glen CoveCoastal HVAC service Oyster BayNorth Shore service Locust ValleyNorth Shore experts BrookvilleLocal HVAC experts Port WashingtonWaterfront service

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Frequently Asked Questions

Related HVAC Services

AC Repair HVAC Services Furnace Repair Boiler Repair No Heat Emergency Emergency Heating Repair Heat Pump Installation Mini Split Installation Ductless AC Installation Furnace Installation Boiler Installation Furnace Replacement Furnace Tune-Up

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Home+ Air & Heat

55 Jericho Tpke Suite 203, Jericho, NY 11753

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