Supported residential heating and cooling systems across Nassau County with written scope, pricing, and scheduling confirmed before authorized work.
HVAC repair begins by identifying the installed equipment and reported symptoms. The diagnostic scope may include controls, airflow, electrical components, combustion or refrigerant-circuit observations, drainage, pumps, or distribution components as appropriate.
From our Jericho headquarters, we provide HVAC repair to homeowners in 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 Nassau County communities. We review the equipment type and symptoms before dispatch, then provide the diagnostic findings and any proposed repair scope before work begins.
We do, across Nassau County and Western Suffolk. Calls reach a live dispatcher 24/7, including nights and weekends, and dispatch confirms the next open arrival window for your address before you commit to anything.
The residential diagnostic is $199 and it buys you a written cause plus a fixed repair price before any work starts. Most common repairs land between $200 and $700 in parts and labor; you approve the number first, and larger jobs come with a repair-versus-replace comparison.
Gas and oil furnaces, steam and hot-water boilers, central air conditioning, ductless mini splits, and heat pumps. Give us the make, model, thermostat reading and any error code when you call so the right parts are on the truck.
Yes. No-heat, no-cool, water leaks and gas odors are treated as emergencies, dispatched 24/7. Shut the system off, then call (516) 259-1191 and dispatch confirms current availability for your street.
Related services near you
System down right now? Call (516) 259-1191 for the next confirmed arrival window.
Home+ Air & Heat works out of Jericho as a residential heating and air conditioning contractor for Nassau County and Western Suffolk. Diagnostics are $199 and credited toward an approved repair, every repair scope is written down before work starts, and one technician covers heating, cooling, and heat pump equipment on the same visit.
Home+ Air & Heat is a residential HVAC contractor covering Nassau County and Western Suffolk. One technician can diagnose central air conditioning, gas and oil furnaces, steam and hot-water boilers, ductless mini splits, heat pumps, and thermostat or control faults, so a single $199 diagnostic usually settles the whole system rather than one component.
The diagnostic is $199 and is credited toward an approved repair. Most documented Nassau County AC repairs land between $200 and $650 for capacitors, contactors, condenser fan motors, and refrigerant leak service; compressor and coil work is quoted separately in writing after the diagnostic.
Yes. Heating repair covers gas and oil furnaces, steam and hot-water boilers, and heat pumps in heating mode. Dispatch confirms the fuel type, make, model, and parts availability before an appointment window is committed, which is what keeps no-heat calls from turning into a second visit.
Yes. We service and install ducted and ductless heat pump systems throughout Nassau County, including cold-climate models sized with a Manual J load calculation. PSEG Long Island's Home Comfort program pays a $4,000 flat rebate on qualifying heat pump installs, or $7,500 income-qualified, through a Participating Partner.
Heating repair, air conditioning repair, and heat pump service in the Nassau County communities we cover most often.
Select your system type for specialized repair information
Gas and oil furnace diagnostics, ignition issues, blower motors, heat exchangers.
Central AC repair including compressors, capacitors, refrigerant leaks, frozen coils.
Heat pump diagnostics for heating and cooling mode failures, defrost issues.
Gas, oil, steam, and hot water boiler repair. Pressure issues, leaks, no heat.
Equipment capability is confirmed from the make, model, age, condition, and requested scope before scheduling.









Don't see your equipment listed? Call us (516) 259-1191 to confirm service capability for the make and model.
Typical Long Island repair ranges. Diagnostic fee ($199 residential / $299 commercial) is credited toward any approved repair.
| Problem | Most Common Causes | Typical Cost |
|---|---|---|
| AC Not Cooling | Low refrigerant, failed capacitor, dirty condenser coil | $200–$650 |
| Furnace Not Heating | Failed ignitor, flame sensor, control board, gas valve | $225–$650 |
| Heat Pump No Heat or Cool | Reversing valve, defrost board, low charge, contactor | $275–$900 |
| Boiler No Heat / Low Pressure | Pressure-reducing valve, expansion tank, air-locked circulator | $250–$700 |
| Thermostat Not Responding | Wiring fault, dead batteries, failed transformer, bad C-wire | $150–$450 |
| System Short-Cycling | Oversized unit, dirty filter, bad limit switch, low refrigerant | $200–$550 |
Final pricing confirmed after on-site diagnostic. Ranges reflect residential systems in Nassau County.
Share the equipment type, make, model, symptoms, error codes, and safety concerns.
Dispatch confirms service capability and the current appointment window or emergency ETA.
The visit follows the installed equipment, reported symptoms, access, and observed condition.
Approve the documented scope and price before additional work begins.
The current HVAC diagnostic is $199; the repair scope and price depend on the installed system, diagnosis, access, and required parts. The written diagnosis or proposal controls the authorized scope and total price.
Expert HVAC repair in every Nassau County community
From our Jericho headquarters, we provide professional HVAC repair to 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 areas throughout Nassau County, Long Island.
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Home+ Air & Heat
55 Jericho Tpke Suite 203, Jericho, NY 11753
Contact us today for fast, professional HVAC repair in Nassau County