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.
Call 24/7
Home+ Quality Shield
Jericho-based · Nassau + Western Suffolk
Read current customer feedback and the business rating directly on Google.
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.
Last updated:
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
Long Island HVAC Questions, Answered
How do I find a good HVAC contractor in Long Island?
Ask for the license number, proof of liability and workers' comp insurance, a Manual J load calculation before any install quote, and the labor warranty in writing. Home+ Air & Heat is a local Long Island HVAC contractor covering covered Nassau County and Western Suffolk ZIP codes, with written pricing before work starts.
Do you offer heating and furnace repair in Long Island?
Yes. We diagnose and repair gas and oil furnaces, steam and hot-water boilers, and heat pumps across covered Nassau County and Western Suffolk ZIP codes. You get a written diagnosis with repair options and a repair-versus-replace comparison before anything is authorized — no work happens on a verbal estimate.
How fast can you get out for AC repair in Long Island?
No-cooling and no-heat calls in covered Nassau County and Western Suffolk ZIP codes go to dispatch first, and 24/7 emergency lines are staffed outside business hours. Call (516) 259-1191 and dispatch confirms the next open arrival window for your address before you commit to anything.
What does HVAC maintenance in Long Island involve?
An annual visit per system: heating in the fall, cooling in the spring. Coastal salt exposure, humidity, and original post-war ductwork all shorten equipment life here, so those get checked on every visit. We check combustion and safety, refrigerant charge, static pressure, drains, and electrical, then document what we found so replacement is planned rather than an emergency.
Popular Long Island services
Need someone today? Call (516) 259-1191 and dispatch confirms current availability for your address.
Furnace Repair & Replacement in Long Island
Who does furnace repair in Long Island?
We do. Home+ Air & Heat repairs gas and oil furnaces across covered Nassau County and Western Suffolk ZIP codes, including no-heat calls after hours. A diagnostic visit gets you the written cause and a fixed repair price before any work begins, so nothing proceeds on a verbal estimate.
What does furnace repair cost in Long Island?
The diagnostic fee covers the visit and testing, then the repair is quoted at a fixed price you approve first. Common Long Island repairs run from an igniter, flame sensor, or pressure switch through inducer and blower motors, control boards, and gas valves — you see the number before we start.
Do you handle furnace replacement and installation in Long Island?
Yes. Replacement and new installs across covered Nassau County and Western Suffolk ZIP codes start with a free in-home survey and a Manual J load calculation, not the old nameplate. You get itemized good, better, and best options with model numbers, the installed price, and the labor warranty in writing.
Is my furnace worth repairing, or should I replace it?
Past roughly 15 years, or when a cracked heat exchanger or repeated failures are involved, replacement usually costs less over the next five winters. We put the repair price and the replacement options side by side on the same visit, including any qualifying PSEG-LI Home Comfort heat pump rebate.
What if my heat goes out overnight in Long Island?
Call (516) 259-1191 — no-heat calls in covered Nassau County and Western Suffolk ZIP codes reach a live dispatcher and 24/7 emergency lines are staffed outside business hours. Dispatch confirms the next open arrival window for your address before you commit to anything.
Furnace & heating services in Long Island
No heat right now? Call (516) 259-1191 and dispatch confirms current availability for your address.
Heating & Air Conditioning in Suffolk County, NY
Furnace repair, furnace replacement, and AC replacement across covered Western Suffolk ZIP codes — Huntington, Babylon, Smithtown, and western Islip — with written pricing before work begins.
Do you do furnace repair in Suffolk County, NY?
Yes. Home+ Air & Heat repairs gas and oil furnaces across covered Western Suffolk ZIP codes, including the Towns of Huntington, Babylon, Smithtown, and western Islip. A $199 diagnostic covers the visit and testing, then the repair is quoted at a fixed price you approve before any work starts.
What does furnace installation or replacement cost in Suffolk County?
This guide uses a $4,800–$9,500 planning range for high-efficiency gas furnace replacement in Western Suffolk. The written quote depends on the Manual J load calculation, venting, gas and electrical work, ductwork condition, access, and permit scope — never on the old nameplate alone.
How much is AC replacement in Suffolk County, NY?
Central AC replacement is shown here at $7,500–$14,000, and ducted or ductless heat pumps at $9,500–$18,000 before incentives. Qualifying heat pump projects can take the PSEG Long Island Home Comfort rebate — $4,000 market rate or $7,500 income-qualified — when the system is sized at 100–120% of the Manual J heating load by a Participating Partner.
Which parts of Suffolk County do you cover?
We cover Western Suffolk: Huntington, Huntington Station, Northport, East Northport, Commack, Dix Hills, Melville, Babylon, West Babylon, Lindenhurst, Deer Park, Bay Shore, West Islip, Brentwood, Hauppauge, Smithtown, Nesconset, Kings Park, Ronkonkoma, and neighboring hamlets. Check your ZIP on this page or call dispatch to confirm your address.
Do you handle both heating and air conditioning in Suffolk County?
Yes — one contractor for both sides of the system: AC repair and installation, furnace and boiler repair and replacement, heat pumps, water heaters, and duct work. Homes in Dix Hills, Commack, and Deer Park often need duct sizing and sealing corrected at the same time as equipment, and that gets scoped into the same written proposal.
Suffolk County heating & cooling services
Need a Suffolk County technician? Call (516) 259-1191 and dispatch confirms the available appointment window for your address.
AC Repair, Service & Installation on Long Island
Central air, mini-split, and heat pump work across covered Nassau County and Western Suffolk ZIP codes — $199 diagnostic, written pricing before any repair or install begins.
Do you do AC repair on Long Island?
Yes. Home+ Air & Heat repairs central air, ductless mini-splits, and heat pumps across covered Nassau County and Western Suffolk ZIP codes. A $199 diagnostic covers the visit, testing, and a written repair price you approve before work starts — and it is waived for Home+ Comfort members.
What does air conditioner service on Long Island cost?
A full AC service and tune-up covers coil condition, refrigerant charge, airflow, capacitor and contactor testing, condensate drainage, and thermostat operation. Most Long Island repairs land in the $250–$900 range once the diagnostic identifies the failed part; anything larger is quoted in writing with a repair-versus-replace comparison.
How much is AC installation or replacement on Long Island?
This guide uses $7,500–$14,000 for central air replacement and $9,500–$18,000 for ducted or ductless heat pumps before incentives. Your written quote depends on the Manual J load calculation, duct condition and sizing, electrical work, line-set routing, and access — never the old nameplate alone.
Are heat pumps a good fit for Long Island homes?
For most Nassau and Western Suffolk homes, yes — a cold-climate heat pump handles cooling and the majority of the heating season, and pairs with existing gas heat when a hybrid setup makes more sense. Qualifying projects can take the PSEG Long Island Home Comfort rebate: $4,000 market rate or $7,500 income-qualified, when sized at 100–120% of the Manual J heating load by a Participating Partner.
Why do Long Island condensers fail earlier than the warranty suggests?
Coastal salt exposure, summer humidity, and undersized post-war ductwork are the three local factors that shorten equipment life here. South Shore condensers show fin pitting within a few seasons, so coated coils, correct duct sizing, and airflow testing get checked on every cooling visit rather than treated as an upsell.
Long Island cooling services
Cooling out on a hot day? Call (516) 259-1191 and dispatch confirms the available appointment window for your address.
Heating & Cooling on Long Island
One local heating and air conditioning company for furnaces, boilers, heat pumps, central air and ductless systems across Nassau County and Western Suffolk — a $199 diagnostic, a written fixed price before work, and ZIP-code coverage confirmed when you call.
Who does heating and cooling on Long Island?
Home+ Air & Heat is a residential heating and air conditioning company working out of Jericho across Nassau County and Western Suffolk — Hicksville, Garden City, Levittown, Massapequa, Syosset, Farmingdale and the Huntington, Babylon and Islip areas. One company handles furnaces, boilers, heat pumps, central air and ductless mini splits, so the same team knows both sides of the system. Coverage is confirmed by ZIP code when you call.
What does home heating repair cost on Long Island?
The diagnostic is $199 and is credited toward an approved repair. Most common heating repairs land between roughly $250 and $900 — igniters, flame sensors, thermocouples, pressure switches, circulators, zone valves and control boards. Heat exchanger, compressor and sealed-system work is quoted separately. You get the written fixed price before any work is authorized.
Do you service both heating and air conditioning on the same visit?
Yes when the equipment is shared. A heat pump or a furnace paired with central AC uses the same blower, ductwork, thermostat and electrical, so a technician can inspect and price both while on site. Separate systems — for example a steam boiler plus ductless cooling — are usually cleaner to book as two visits so each gets full time.
What heating systems do you repair and install across Nassau and Suffolk?
Gas and oil furnaces, gas, oil and steam boilers, air-source heat pumps, ductless mini-split heat pumps and hybrid dual-fuel setups. Long Island housing stock runs from 1950s Levittown-era ductwork to steam-heated older homes and newer ducted colonials, so sizing and venting are checked on the specific house rather than assumed from square footage.
Do you cover heating repair in Suffolk County as well as Nassau?
Nassau County is covered in full. In Suffolk we cover the western towns, including the Huntington, Babylon and Islip areas, and confirm your specific ZIP code before booking rather than promising blanket county coverage. Eastern Suffolk and the East End are outside the service radius.
Can you come out for emergency no-heat calls?
Calls are answered 24/7 and dispatch confirms the current appointment window or emergency ETA for your address — no fixed arrival time is promised. If you smell gas, leave the house first and call the utility. If a boiler is leaking near electrical, shut the system off at the switch and call for guidance before touching anything.
Is a maintenance plan worth it for a heating and cooling system?
It usually is if you run both heating and cooling equipment. Home+ Comfort is $299 a year and covers both seasonal visits plus a waived diagnostic, versus $299 for a single one-off tune-up. Annual service also keeps manufacturer parts coverage intact, which matters most on newer high-efficiency furnaces and heat pumps.
When should a Long Island furnace be replaced instead of repaired?
Replacement usually wins past roughly 15–20 years, on a cracked heat exchanger, when the repair approaches about a third of replacement cost, or when the system has needed several repairs in consecutive winters. The diagnostic gives you both numbers in writing, and PSEG Long Island heat-pump rebates are checked at the same time if electric heating is on the table.
Related heating & cooling services
Long Island towns we cover
No heat right now? Call (516) 259-1191 and dispatch confirms coverage for your ZIP code and the next available appointment window.
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.
-
1Verify the county or municipal license required for the project (ask for the number).
-
2Confirm liability insurance and workers' comp — request a Certificate of Insurance.
-
3Ask which certifications the installing technicians hold — and verify them.
-
4Insist on a Manual J load calculation before any install quote — not square-footage shortcuts.
-
5Get the equipment + labor warranty in writing (look for 10-yr parts / 1-yr labor at minimum).
-
6For coastal homes (within ~1 mile of the Atlantic or Sound), require coastal coil coatings.
-
7Compare 3 written, line-item quotes — not phone estimates.
-
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.
EPA 608-Certified Technicians
EPA 608-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.
What credentials and insurance do you carry for Nassau and Suffolk work?
Home+ Air & Heat is fully insured, and our technicians are EPA 608-certified and background-checked. We provide current insurance documentation on request before work begins — ask the office for the documentation applicable to 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.