Long Island HVACLocal Repair & Installation
Heating, cooling, boiler, and water-heater service across covered Nassau and Western Suffolk ZIP codes. Based in Jericho and rated 5/5 on Google.
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Jericho-based · Nassau + Western Suffolk
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5/5 · View Google profileLooking for an HVAC and AC repair company on Long Island, NY?
Home+ Air & Heat is a Jericho-based HVAC and AC repair company serving covered ZIP codes in Nassau County and Western Suffolk County. The emergency phone line is available 24/7, dispatch confirms current scheduling, written options are provided before work is authorized, and the business holds a 5/5 Google rating.
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People Also Ask
Quick answers to the questions Long Island, NY homeowners search most about HVAC and AC repair.
How much does HVAC service cost on Long Island?
This guide uses a $150–$850 planning range for many residential HVAC repairs. Central AC installation is shown at $7,500–$14,000, gas furnaces at $4,800–$9,500, condensing boilers at $8,500–$16,000, and oil-to-gas conversions at $12,000–$22,000. Actual cost depends on the diagnosis, equipment, access, code, and permit scope; request a written quote.
How should I compare HVAC contractors on Long Island?
Compare the license and insurance applicable to your jurisdiction, who will perform the work, equipment sizing, written scope, warranty terms, and current public reviews. Home+ Air & Heat is based in Jericho and currently shows a 5/5 Google rating.
What HVAC brands are best for Long Island homes?
The right brand depends on the home's load, system type, installer support, parts availability, efficiency goals, warranty terms, and coastal exposure. Compare published specifications and exact model numbers in each written quote rather than choosing from brand name alone.
How fast can you get to me on Long Island?
Dispatch confirms the current appointment window after checking your address and the nature of the problem. Arrival time depends on technician availability, location, traffic, weather, and current demand.
How fast can you install a new HVAC system on Long Island?
Installation timing depends on equipment availability, project scope, permits, inspections, access, ductwork, electrical work, and weather. The proposed sequence and expected duration should be confirmed in writing for the specific project.
Pick Your County
Home+ Air & Heat serves covered ZIP codes in Nassau County and Western Suffolk. Pick the hub that matches your address, then use the ZIP tool or call dispatch to confirm coverage and current scheduling.
Nassau County HVAC
Nassau service information, planning ranges, ZIP coverage, and local pages from a Jericho-based team.
Open Nassau County hubSuffolk County HVAC
Coverage information for supported ZIP codes around Huntington, Babylon, Smithtown, Islip, and nearby western hamlets.
Open Suffolk County hubLong Island, NY Climate at a Glance
Long Island summers are hot and humid, winters require dependable heating, and coastal properties can face added salt-air exposure. Equipment sizing and coastal-protection choices should be based on the home's load calculation, site conditions, and manufacturer guidance.
What Long Island HVAC Needs, Quarter by Quarter
Long Island HVAC priorities shift four times a year: fall heating prep before the first Nor'easter, winter no-heat dispatch, spring AC tune-ups in the quiet shoulder window, and summer humidity plus salt-air load management. Booking inside each window — not after the failure — is the difference between a tune-up and an emergency.
Pre-Nor'easter heating prep
Furnace and boiler tune-ups, oil-tank top-offs, thermostat calibration, and heat-pump defrost checks before the first Nor'easter pushes inland temps into the 20s.
No-heat dispatch + safety
No-heat demand peaks Dec–Feb. We prioritize carbon-monoxide checks on older Nassau boilers and cold-climate heat-pump performance below 20°F.
Shoulder-season AC tune-up
A useful window for AC tune-ups, coil cleaning, and system checks before peak cooling demand begins.
Humidity + salt-air load
Humidity and coastal exposure can affect comfort and outdoor equipment. We inspect equipment condition and size replacements from the home's load, not temperature alone.
What Happens When You Call
A clear path from coverage confirmation to written service options.
1. Call or request online
Share the equipment issue and service address so coverage can be confirmed.
2. Confirm the visit
Dispatch provides the available appointment window; timing varies with demand and location.
3. Review written options
See the scope and price before deciding whether to repair or replace.
Call us or Book online?
Call (516) 259-1191 for urgent problems; use the online request for planned installs, tune-ups, and quotes. The emergency phone line is available 24/7, and dispatch confirms the available appointment window.
Call when…
- No heat, no cooling, or water leaking from a system
- A breaker keeps tripping or equipment has an unusual odor
- You need the earliest available appointment or an after-hours visit
- You'd rather talk to a person than fill out a form
Book online when…
- Pricing a new install or replacement system
- Scheduling an annual AC or boiler tune-up
- Quoting an oil-to-gas conversion or heat-pump upgrade
- Picking your own appointment window
A Long Island HVAC Team Based in Jericho
Long Island homes are not like the rest of the country. Coastal humidity off the Long Island Sound and the Atlantic stresses cooling systems all summer long. Winter Nor'easters push older boilers and furnaces past their limits. And the housing stock — from pre-war Tudors in Garden City and Huntington Village, to post-war Levittown and Commack ranches, to North Shore estates — means there is no single "right" HVAC system for the Island.
Home+ Air & Heat is based in Jericho and serves covered ZIP codes in Nassau County and Western Suffolk County. Address coverage and the current appointment window are confirmed by dispatch.
Heating across Long Island
Many older Long Island homes still use cast-iron oil or gas boilers. We handle steam and hot-water boiler repairs, modern condensing boiler swaps, gas furnace installs, and full oil-to-gas conversions in coordination with National Grid. When sizing matters, we run the heat loss calc — not a square-footage guess.
Cooling across Long Island
Coastal humidity changes how AC should be sized and dehumidified. We install central AC, cold-climate heat pumps, and ductless mini-splits — and protect coastal-zone condensers against salt-air corrosion with the right coil coatings and pad placement. Right-sized systems run quieter, last longer, and actually pull humidity out of the air.
Indoor air quality on Long Island
Tight modern envelopes plus seasonal pollen and salt-air particulates put extra demand on filtration. We design IAQ upgrades — high-MERV filtration, UV, fresh-air ventilation, and whole-home dehumidification — that match the system instead of being bolted on.
Code, quality, and warranties
Code, permit, inspection, and warranty requirements depend on the jurisdiction, equipment, and scope. Review those responsibilities and the applicable labor and manufacturer warranty terms in writing before authorizing the installation.
HVAC Problems Specific to Long Island
Coastal exposure and the mix of pre-war, post-war, and renovated homes create different equipment, ductwork, and electrical questions at each property.
Salt-air corrosion on both shores
Atlantic- and Sound-side properties can expose outdoor equipment to more salt and moisture. Equipment condition, coating options, clearances, and pad placement should be assessed onsite.
Coastal humidity overload
Oversized AC equipment may satisfy temperature quickly without managing humidity well. Load calculations and appropriate staging or variable-speed options help match the home.
Oil-to-gas conversions
Many older Long Island homes still run oil. We scope the boiler or furnace change, gas-line coordination, chimney work, and oil-tank work as one project.
Aging cast-iron steam boilers
Common in Garden City, Rockville Centre, Huntington Village, and pre-war Long Beach homes. We service one-pipe and two-pipe steam, and quote modern condensing replacements when the math makes sense.
Undersized post-war ductwork
Levittown, Hicksville, Plainview, Commack, and Deer Park ranches were built around small original ducts. Modern higher-CFM systems need rework or static-pressure-friendly equipment to perform as rated.
PSEG Long Island electrical capacity
Heat-pump and other electrification projects may require a panel and service-capacity review. We identify the electrical scope before equipment selection is finalized.
Every HVAC Service, Across Long Island
Heating, cooling, hot water, and indoor air quality — one local contractor for it all.
Cooling Services
AC Repair
Cooling diagnostics with written repair options for Long Island homeowners.
AC Installation
Right-sized central AC and heat pumps for Long Island homes.
Mini-Split Installation
Ductless comfort for additions, attics, and historic homes.
Heat Pump Installation
2026 heat-pump costs, cold-climate design, rebates, and written estimates.
Heating Services
Furnace Repair
Fast warm-air furnace fixes when winter hits Long Island hard.
Furnace Installation
High-efficiency gas furnaces installed to NY State code.
Boiler Repair
Steam and hot-water boiler experts — common in older Long Island homes.
Boiler Installation
Hot-water and steam boiler replacement costs, scopes, and written estimates.
Find HVAC service information for your Nassau County town
Start with a maintained city-and-service guide for local housing context, scope questions, and the correct repair or replacement path. Address coverage and appointment timing are confirmed by dispatch.
AC repair by town
Local cooling-diagnostic and repair guidance.
AC installation by town
Local replacement planning, sizing, and scope guidance.
Furnace repair by town
Local warm-air heating repair guidance.
Boiler repair by town
Local steam and hot-water boiler repair guidance.
Mini-split installation by town
Local ductless-system planning, placement, and installation guidance.
- Mini-split installation in Jericho
- Mini-split installation in Hicksville
- Mini-split installation in Garden City
- Mini-split installation in Levittown
- Mini-split installation in Westbury
- Mini-split installation in Old Westbury
- Mini-split installation in Syosset
- Mini-split installation in New Cassel
- Mini-split installation in Brookville
- Mini-split installation in Freeport
- Mini-split installation in Great Neck
- Mini-split installation in Hempstead
- Mini-split installation in Massapequa
- Mini-split installation in East Meadow
What HVAC Service Costs on Long Island
This guide uses a $150–$850 planning range for many residential HVAC repairs. Central AC installs are shown at $7,500–$14,000, gas furnaces at $4,800–$9,500, condensing boilers at $8,500–$16,000, and oil-to-gas conversions at $12,000–$22,000. Your written quote depends on the diagnosis, equipment, access, code, and permit scope.
| Service | Typical Long Island Range | Notes |
|---|---|---|
| AC repair (diagnostic + most fixes) | $150 – $850 | Scheduling confirmed by dispatch |
| Furnace repair | $150 – $850 | Scope varies by diagnosis |
| Boiler repair | $200 – $1,200 | Steam & hot-water |
| Central AC installation | $7,500 – $14,000 | Right-sized, Manual J |
| Gas furnace installation | $4,800 – $9,500 | High-efficiency to NY State code |
| Cold-climate heat pump install | $9,000 – $18,000 | Whole-home or zoned |
| Ductless mini-split (per zone) | $4,500 – $7,500 | Single-zone install |
| Boiler replacement | $8,500 – $16,000 | Condensing gas, properly vented |
| Oil-to-gas conversion (boiler) | $12,000 – $22,000 | Includes line, chimney, removal |
| Standard 40-gallon tank installation | $3,700 | Company pricebook baseline; written scope controls |
| Annual HVAC tune-up | $199 | Comfort Members included |
Ranges reflect typical Long Island pricing for standard residential work. Actual cost depends on tonnage/BTU, efficiency tier, accessibility, ductwork condition, and electrical capacity. Installation quotes are free and based on an in-home assessment.
How to Choose an HVAC Contractor on Long Island
To compare Long Island HVAC contractors, verify the license required by the project jurisdiction, insurance, technician credentials, equipment sizing method, written scope, and warranty terms. Coastal properties should also discuss salt exposure and manufacturer-approved protection options.
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1Verify the county or municipal license required for the project (ask for the number).
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2Confirm liability insurance and workers' comp — request a Certificate of Insurance.
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3Require NATE-certified technicians on installs and complex repairs.
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4Insist on a Manual J load calculation before any install quote — not square-footage shortcuts.
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5Get the equipment + labor warranty in writing (look for 10-yr parts / 1-yr labor at minimum).
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6For coastal homes (within ~1 mile of the Atlantic or Sound), require coastal coil coatings.
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7Compare 3 written, line-item quotes — not phone estimates.
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8Confirm how warranty-service requests are scheduled and who handles them.
The HVAC Brands We Lead With on Long Island
Home+ Air & Heat commonly quotes Trane for central systems, Mitsubishi Electric for ductless systems, and Bosch for inverter heat pumps and condensing boilers. Exact equipment recommendations depend on load, fuel, site conditions, service support, published specifications, and written warranty terms.
| Brand | What we install | Why for Long Island | Tier |
|---|---|---|---|
| Trane | Central AC · Furnaces | Reliability and local parts availability | Lead install brand |
| Mitsubishi Electric | Mini-splits · Heat pumps | Ductless additions, attic conversions, Long Island additions | Lead install brand |
| Bosch | Inverter heat pumps · Boilers | Quiet operation, high SEER2, condensing wall-hung boilers | Lead install brand |
| Rheem | Water heaters | Tank, tankless, and hybrid equipment options | Preferred |
| Bradford White | Water heaters | Contractor's-choice tanks, sold only through pros | Preferred |
| Weil-McLain | Cast-iron & condensing boilers | Pre-war Long Island homes still on hot-water heat | Preferred |
| Carrier · Lennox · Goodman · York | Service & repair | Diagnostic and repair support for common major brands | Service brands |
Service is available for many common HVAC brands, including Carrier, Lennox, Goodman, York, and American Standard. Confirm support for the exact model when scheduling; replacement recommendations depend on the home's load, fuel, and site conditions.
Popular Long Island HVAC Searches
Why Long Island Homeowners Pick Home+
License & Insurance Documentation
Ask the office for the credentials and insurance documentation applicable to your project.
NATE-Certified Technicians
NATE-certified technicians are available for installations and complex diagnostics.
24/7 Emergency Phone Line
Call nights, weekends, or holidays; dispatch confirms the available appointment window.
Written Pricing
Review the scope and price before authorizing repair or replacement work.
Written Warranty Terms
Applicable labor and manufacturer warranty terms are documented with the installation.
Based in Jericho
Local dispatch for covered Nassau and Western Suffolk ZIP codes.
What to confirm before authorizing work
Review Current Financing Terms
Financing is subject to credit approval. Current plans, APRs, terms, and qualification details are maintained on the financing page and may change.
Long Island Towns We Serve
Covered ZIP codes in Nassau County and Western Suffolk. Don't see yours? Call dispatch to confirm.
Nassau County Open Nassau hub →
Western Suffolk County
Related Long Island HVAC Guides
Deeper reads on financing, brand rankings, warranties, and maintenance — written specifically for Long Island homes.
How to Compare Long Island HVAC Contractors
A practical framework for checking credentials, scope, warranties, and current reviews.
Long Island HVAC Financing
Current plans, APRs, terms, and qualification details.
Best Furnace Brands 2026
Trane, Carrier, Lennox, Bosch — ranked for LI homes.
Best Mini-Split Brands
Mitsubishi, Fujitsu, Daikin compared head-to-head.
Best Heat Pump Brands
Cold-climate picks that hold capacity below 20°F.
Warranty Standards
10-yr parts, 1-yr labor — what's covered, what's not.
Long Island Coverage Map
Based in Jericho and serving covered ZIP codes in Nassau and Western Suffolk.
Long Island HVAC FAQs
Real answers about service, brands, and pricing across the Island.
How quickly can you schedule HVAC service on Long Island?
Call or submit a request for the current appointment window. The emergency phone line is available 24/7, but arrival time depends on technician availability, location, traffic, weather, and current demand.
Do you offer 24-hour HVAC help on Long Island?
The emergency phone line is available 24 hours a day, including nights, weekends, and holidays. Dispatch confirms whether and when a technician is available; if you smell gas or face an immediate safety hazard, leave the area and contact 911 or the utility first.
What areas of Long Island do you cover?
Home+ Air & Heat serves covered ZIP codes in Nassau County and Western Suffolk County. Use the ZIP checker on this page or call dispatch to confirm service at your address.
What's different about HVAC on Long Island vs. the rest of NY?
Long Island HVAC has to handle three things inland systems don't: coastal humidity that overworks AC, salt-air corrosion that destroys outdoor condensers near the shore, and dense post-war housing stock (Levittown, Hicksville, Plainview, Commack, Deer Park) with undersized original ductwork. A Long Island-based installer sizes equipment, picks corrosion-resistant coils, and reworks ducts with all three in mind.
Do you service both Nassau and Suffolk County?
We serve covered ZIP codes across Nassau County and Western Suffolk County, including parts of Huntington, Babylon, Smithtown, and Islip. Use the ZIP checker or call dispatch to confirm your address.
What is your response time on Long Island?
Dispatch confirms the available appointment window for your address. Timing depends on technician availability, location, traffic, weather, and current demand, with urgent no-heat and no-cooling calls triaged by the team.
Do you handle oil-to-gas conversions on Long Island?
Yes — oil-to-gas conversion is one of our specialties. We coordinate the boiler or furnace swap, the National Grid gas line, the chimney work, and oil-tank removal so you have one accountable contractor.
Are you licensed and insured for Nassau and Suffolk work?
Homets Services, LLC states that it is licensed and insured for the work it performs. Ask the office for the applicable license and insurance documentation for your project and jurisdiction.
What HVAC brands do you install on Long Island?
Home+ commonly quotes Trane, Mitsubishi Electric, and Bosch equipment and services many common brands. The recommendation depends on the home's load, fuel, site conditions, service support, specifications, and written warranty terms.
Do you offer financing?
Financing is available subject to credit approval. Review the financing page for current plans, APRs, terms, and qualification details; offers may change.
How much does HVAC installation cost on Long Island?
This guide shows a $7,500–$14,000 planning range for many central AC replacements, but actual pricing depends on tonnage, efficiency, ductwork, access, electrical work, code, and permits. Request a written quote after an in-home assessment.
What size AC do I need for my Long Island home?
Sizing should account for the home's construction, insulation, windows, orientation, ductwork, and humidity load rather than square footage alone. Ask for the sizing method and assumptions with the written replacement proposal.
When should I replace my Long Island boiler?
Most cast-iron boilers on Long Island last 20–30 years; modern condensing boilers 15–20. If your boiler is over 15 years old, requires repeated repairs, runs an oil tank, or you've noticed rising fuel bills, it is worth getting a replacement quote — especially if you can pair it with an oil-to-gas conversion.
Do you handle attic ducts in older Long Island homes?
Yes. Many older Long Island homes have undersized or leaky attic ductwork that hurts comfort and efficiency. We diagnose duct sizing and sealing issues as part of any install quote and can rework or replace runs when needed.
Need HVAC Help on Long Island?
Call now or request online service; dispatch will confirm coverage and the current appointment window.