Heating, cooling, boiler, and water-heater service across covered Nassau County ZIP codes. Based in Jericho and rated 5/5 on Google.
Jericho-based · Nassau County service
Read current customer feedback and the business rating directly on Google.
5/5 · View Google profileHome+ Air & Heat is a local HVAC contractor based in Jericho and serving covered Nassau County ZIP codes. The team provides heating, cooling, boiler, water-heater, and indoor-air-quality service. 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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No phone trees. No mystery pricing. Just a clear three-step path.
Share the equipment issue and service address so coverage can be confirmed.
Dispatch provides the available appointment window; timing varies with demand and location.
See the scope and price before deciding whether to repair or replace.
No heat, no cooling, water leak, or burning smell? Skip the form — we answer the phone 24/7.
Call (516) 259-1191Replacing a system, scheduling a tune-up, or pricing an oil-to-gas conversion? Book a no-pressure visit at your convenience.
Nassau County 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 to post-war Levittown ranches to North Shore estates — means there is no single "right" HVAC system for the county.
Home+ Air & Heat is based in Jericho and serves covered ZIP codes across Nassau County. Address coverage, permit responsibilities, and the current appointment window are confirmed for each project.
Many older Nassau homes still use cast-iron oil or gas boilers. Available project scopes include steam and hot-water boiler repair, condensing-boiler replacement, gas-furnace installation, and oil-to-gas conversion evaluation. A replacement proposal should identify the sizing method and the fuel, venting, distribution, utility, permit, and inspection responsibilities.
Coastal humidity changes how AC should be sized and dehumidified. Central AC, cold-climate heat-pump, and ductless proposals should account for the home's load, airflow, drainage, low-temperature capacity, and site-specific salt exposure. Ask for the assumptions, matched-equipment data, and any coastal protection option in writing.
Tight modern envelopes plus seasonal pollen and salt-air particulates put extra demand on filtration. Filtration, UV, fresh-air ventilation, and whole-home dehumidification options must be matched to the existing system's airflow, static-pressure allowance, controls, installation conditions, and maintenance needs.
Permit and inspection requirements depend on the equipment, fuel, electrical scope, and local jurisdiction. Those responsibilities should be identified in the written project scope before work begins, along with the applicable labor and manufacturer warranty terms.
Nassau County summers are hot and humid, winters require dependable heating, and South Shore properties can face added salt-air exposure. Equipment sizing, low-temperature heat-pump capacity, and coastal-protection choices should be based on the home's load calculation, site conditions, and manufacturer data.
Coastal exposure and the mix of pre-war, post-war, and renovated homes create different equipment, ductwork, and electrical questions at each property.
Many older Nassau homes still run oil. We scope the boiler or furnace change, gas-line coordination, chimney work, oil-tank work, and applicable permits as one project.
Common in Garden City, Rockville Centre, and pre-war Long Beach homes. We service one-pipe and two-pipe steam, and quote modern condensing replacements when the math makes sense.
South Shore properties can expose outdoor equipment to more salt and moisture. Equipment condition, coating options, clearances, and pad placement should be assessed onsite.
Oversized AC equipment may satisfy temperature quickly without managing humidity well. Load calculations and appropriate staging or variable-speed options help match the home.
Levittown, Hicksville, and Plainview ranches were built around small original ducts. Modern higher-CFM systems need rework or static-pressure-friendly equipment to perform as rated.
Heat-pump and other electrification projects may require a panel and service-capacity review. We identify the electrical scope before equipment selection is finalized.
Heating, cooling, hot water, and indoor air quality — one local contractor for it all.
Cooling diagnostics with written repair options for Nassau homeowners.
Right-sized central AC and heat pumps for Long Island homes.
Ductless comfort for additions, attics, and historic homes.
Cold-climate heat pumps that work in Long Island winters.
Warm-air furnace diagnostics with written repair options.
Gas-furnace proposals based on the load, venting, distribution, code, and permit scope.
Steam and hot-water boiler diagnostics for Nassau County homes.
Modern condensing boilers and oil-to-gas conversions.
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.
Local cooling-diagnostic and repair guidance.
Local replacement planning, sizing, and scope guidance.
Local warm-air heating repair guidance.
Local steam and hot-water boiler repair guidance.
Local ductless-system planning, placement, and installation guidance.
Planning ranges for Nassau County HVAC repairs commonly fall between $150–$850 on this guide. 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 Nassau 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 | Equipment and permit scope vary |
| 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, vent + permits |
| Oil-to-gas conversion (boiler) | $12,000 – $22,000 | Fuel, chimney, tank, and permit scope vary |
| Tankless water heater install | $3,800 – $6,500 | Gas, vented to code |
| Annual HVAC tune-up | $299 | Confirm included scope |
These planning ranges are not a project quote. Actual cost depends on tonnage or BTU, efficiency tier, accessibility, ductwork condition, electrical capacity, fuel, code, and permit scope. Installation estimates are based on an in-home assessment.
Ask the office for the credentials and insurance documentation applicable to your project.
Call to confirm support for the brand, model, fuel, and system type at the property.
Call nights, weekends, or holidays; dispatch confirms the available appointment window.
Review the scope and price before authorizing repair or replacement work.
Applicable labor and manufacturer warranty terms are documented with the installation.
Local dispatch for covered Nassau County ZIP codes.
Factory-trained technicians for all major HVAC manufacturers
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Don't see your brand? We service all manufacturers. Call us to confirm.
Recent Google reviews
Recent public reviews from homeowners who hired Home+ Air & Heat.
Nawina Adhikari
Long Island, NY · May 2026
“Homets Air and Heat did an amazing job with our AC service. From the beginning, they were very professional, responsive, and easy to work with.”
Preya Patel
Long Island, NY · May 2026
“Very good and fast service, prices very reasonable as well.”
Asifa Saliman
Long Island, NY · Apr 2026
“Quincy was my technician. He figured my issue in 10 minutes. He was very knowledgeable. He gave me a solution and the service was great.”
Nathan Gonzalez
Long Island, NY · Apr 2026
“Great service, thank you.”
Uddipon Sarker
Long Island, NY · Jan 2026
“Amazing service. Really efficient with their work. Plus reasonably priced for the service.”
Bipul Mainali
Long Island, NY · Jan 2026
“They replaced my old, oxidized copper pipes connected to the boiler. The work was completed neatly, and the price was fair.”
Financing is subject to credit approval. Review current plans, APRs, terms, and qualification details on the financing page; offers may change.
Join Nassau County homeowners who never worry about HVAC maintenance again. Priority service, exclusive discounts, and peace of mind.
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or $299/year billed annually
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Don't see your town? Use the ZIP checker above — we serve all of Nassau County.
76 ZIP codes across 70 Nassau County towns. If your ZIP isn't listed, call us — we likely still cover it.
Fast, reliable service in your neighborhood
What we actually do, town by town. Tap any neighborhood for the local HVAC page.
Our headquarters and dispatch base for covered Nassau County ZIP codes.
View Jericho pagePost-war homes can require duct, electrical, access, and equipment-sizing review before replacement.
View Hicksville pageHeating, cooling, and conversion scopes depend on the home's fuel, load, distribution, and site conditions.
View Syosset pageOlder steam systems and finished homes require careful routing, access, and protection planning.
View Garden City pageCoverage, local permit responsibilities, and appointment timing are confirmed for each address.
View Hempstead pageAttic access, original duct layouts, electrical capacity, and additions can change the retrofit scope.
View Levittown pageSouth Shore projects may require site-specific review of salt exposure, drainage, elevation, and humidity.
View Massapequa pageMulti-zone, controls, distribution, access, and finish requirements should be aligned in the written proposal.
View Great Neck pageHome+ Air & Heat serves covered ZIP codes across the Towns of Hempstead, North Hempstead, and Oyster Bay. The directory below is geographic context, not a guarantee of availability at every address. Call dispatch to confirm coverage, timing, and any permit requirements for your project.
Based in Jericho and serving covered ZIP codes across Nassau County.
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